src/server/plugins/postgresql/webdav.c

Sun, 23 Oct 2022 11:41:05 +0200

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Sun, 23 Oct 2022 11:41:05 +0200
changeset 399
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parent 384
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child 401
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permissions
-rw-r--r--

fix ucx include path in postgresql plugin

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1 /*
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2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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3 *
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4 * Copyright 2022 Olaf Wintermann. All rights reserved.
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5 *
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6 * Redistribution and use in source and binary forms, with or without
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7 * modification, are permitted provided that the following conditions are met:
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8 *
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9 * 1. Redistributions of source code must retain the above copyright
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10 * notice, this list of conditions and the following disclaimer.
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11 *
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12 * 2. Redistributions in binary form must reproduce the above copyright
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13 * notice, this list of conditions and the following disclaimer in the
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14 * documentation and/or other materials provided with the distribution.
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15 *
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16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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26 * POSSIBILITY OF SUCH DAMAGE.
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27 */
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28
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29 #include "webdav.h"
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30 #include "vfs.h"
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31 #include "config.h"
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32
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33 #include "../../util/util.h"
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34 #include "../../util/pblock.h"
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35
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36 #include "../../daemon/http.h" // etag
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37
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38 #include <ucx/buffer.h>
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39 #include <ucx/utils.h>
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40 #include <libxml/tree.h>
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41
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42
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43 static WebdavBackend pg_webdav_backend = {
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44 pg_dav_propfind_init,
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45 pg_dav_propfind_do,
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46 pg_dav_propfind_finish,
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47 pg_dav_proppatch_do,
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48 pg_dav_proppatch_finish,
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49 NULL, // opt_mkcol
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50 NULL, // opt_mkcol_finish
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51 NULL, // opt_delete
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52 NULL, // opt_delete_finish
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53 0,
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54 NULL,
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55 NULL
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56 };
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57
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58
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59
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60 /*
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61 * SQL query components
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62 */
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63
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64 /*
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65 * PROPFIND queries are build from components:
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66 *
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67 * cte cte_recursive or empty
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68 * select
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69 * ppath ppath column
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70 * cols list of columns
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71 * ext_cols* list of extension columns
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72 * from from [table] / from cte
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73 * prop_join join with property table, allprop or plist
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74 * ext_join* extension table join
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75 * where different where clauses for depth0 and depth1
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76 * order depth0 doesn't need order
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77 */
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78
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79 static const char *sql_propfind_cte_recursive = "\
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80 with recursive resolvepath as (\n\
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81 select\n\
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82 '' as ppath,\n\
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83 *\n\
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84 from Resource\n\
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85 where resource_id = $1 \n\
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86 union\n\
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87 select\n\
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88 p.ppath || '/' || r.nodename,\n\
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89 r.*\n\
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90 from Resource r\n\
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91 inner join resolvepath p on r.parent_id = p.resource_id\n\
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92 )\n";
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93
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94 static const char *sql_propfind_select = "\
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95 select\n";
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96
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97 static const char *sql_propfind_ppath_depth0 = "\
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98 $2::text as ppath,\n";
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99
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100 static const char *sql_propfind_ppath_depth1 = "\
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101 case when r.resource_id = $1 then $2\n\
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102 else $2 || '/' || r.nodename\n\
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103 end as ppath,\n";
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104
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105 static const char *sql_propfind_ppath_depth_infinity = "\
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106 case when r.resource_id = $1 then $2\n\
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107 else $2 || r.ppath\n\
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108 end as ppath,\n";
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109
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110 static const char *sql_propfind_cols = "\
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111 r.resource_id,\n\
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112 r.parent_id,\n\
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113 r.nodename,\n\
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114 r.iscollection,\n\
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115 r.lastmodified,\n\
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116 r.creationdate,\n\
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117 r.contentlength,\n\
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118 r.etag,\n\
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119 p.prefix,\n\
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120 p.xmlns,\n\
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121 p.pname,\n\
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122 p.lang,\n\
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123 p.nsdeflist,\n\
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124 p.pvalue\n";
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125
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126 static const char *sql_propfind_from_table = "\
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127 from Resource r\n";
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128
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129 static const char *sql_propfind_from_cte = "\
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130 from resolvepath r\n";
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131
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132 static const char *sql_propfind_propjoin_allprop = "\
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133 left join Property p on r.resource_id = p.resource_id\n";
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134
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135 static const char *sql_propfind_propjoin_plist = "\
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136 left join (\n\
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137 select p.* from Property p\
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138 inner join (select unnest($3::text[]) as xmlns, unnest($4::text[]) as pname) n\n\
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139 on p.xmlns = n.xmlns and p.pname = n.pname\n\
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140 ) p on r.resource_id = p.resource_id\n";
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141
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142 static const char *sql_propfind_where_depth0 = "\
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143 where r.resource_id = $1\n";
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144
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145 static const char *sql_propfind_where_depth1 = "\
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146 where r.resource_id = $1 or r.parent_id = $1\n";
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147
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148 static const char *sql_propfind_order_depth1 = "\
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149 order by case when r.resource_id = $1 then 0 else 1 end, nodename, resource_id";
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150
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151 static const char *sql_propfind_order_depth_infinity = "\
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152 order by replace(ppath, '/', chr(1)), resource_id";
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153
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154 /*
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155 * SQL Queries
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156 */
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157
306
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158
318
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159 // proppatch: set property
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160 // params: $1: resource_id
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161 // $2: xmlns prefix
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162 // $3: xmlns href
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163 // $4: property name
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164 // $5: lang attribute value
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165 // $6: namespace list string
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166 // $7: property value
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167 static const char *sql_proppatch_set = "\
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168 insert into Property(resource_id, prefix, xmlns, pname, lang, nsdeflist, pvalue)\n\
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169 values($1, $2, $3, $4, $5, $6, $7)\n\
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170 on conflict (resource_id, xmlns, pname) do\n\
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171 update set prefix=$2, lang=$5, nsdeflist=$6, pvalue=$7;";
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172
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173 // proppatch: remove property
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174 // params: $1: resource_id
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175 // $2: xmlns href
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176 // $3: property name
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177 static const char *sql_proppatch_remove = "\
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178 delete from Property where resource_id = $1 and xmlns = $2 and pname = $3";
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179
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180
366
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181 void* pg_webdav_init(ServerConfiguration *cfg, pool_handle_t *pool, WSConfigNode *config) {
372
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182 return pg_init_repo(cfg, pool, config);
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183 }
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184
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185 WebdavBackend* pg_webdav_create(Session *sn, Request *rq, pblock *pb, void *initData) {
370
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186 PgRepository *repo = initData;
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187
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188 char *resource_pool;
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189 if(repo) {
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190 resource_pool = repo->resourcepool.ptr;
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191 } else {
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192 // resourcepool is required
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193 resource_pool = pblock_findval("resourcepool", pb);
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194 if(!resource_pool) {
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195 log_ereport(LOG_MISCONFIG, "pg_webdav_create: missing resourcepool parameter");
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196 return NULL;
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197 }
303
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198 }
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199
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200 // get the resource first (should only fail in case of misconfig)
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201 ResourceData *resdata = resourcepool_lookup(sn, rq, resource_pool, 0);
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202 if(!resdata) {
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203 log_ereport(LOG_MISCONFIG, "postgresql webdav: resource pool %s not found", resource_pool);
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204 return NULL;
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205 }
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206
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207 return pg_webdav_create_from_resdata(sn, rq, repo, resdata);
303
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208 }
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209
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210 WebdavBackend* pg_webdav_create_from_resdata(Session *sn, Request *rq, PgRepository *repo, ResourceData *resdata) {
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211 WebdavBackend *webdav = pool_malloc(sn->pool, sizeof(WebdavBackend));
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212 if(!webdav) {
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213 return NULL;
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214 }
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215 *webdav = pg_webdav_backend;
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216
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217 PgWebdavBackend *instance = pool_malloc(sn->pool, sizeof(PgWebdavBackend));
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218 if(!instance) {
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219 pool_free(sn->pool, webdav);
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220 return NULL;
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221 }
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222 webdav->instance = instance;
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223
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224 instance->pg_resource = resdata;
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225 instance->connection = resdata->data;
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226
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227 instance->repository = repo;
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228 snprintf(instance->root_resource_id_str, 32, "%" PRId64, repo->root_resource_id);
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229
303
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230 return webdav;
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231 }
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232
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233 WebdavBackend* pg_webdav_prop_create(Session *sn, Request *rq, pblock *pb) {
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234 return NULL;
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235 }
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236
315
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237 /*
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238 * adds str to the buffer
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239 * some characters will be escaped: \,{}
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240 */
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241 static void buf_addstr_escaped(UcxBuffer *buf, const char *str) {
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242 size_t len = strlen(str);
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243 for(size_t i=0;i<len;i++) {
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244 char c = str[i];
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245 if(c == '{' || c == '}' || c == ',' || c == '\\') {
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246 ucx_buffer_putc(buf, '\\');
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247 }
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248 ucx_buffer_putc(buf, c);
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249 }
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250 }
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251
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252 /*
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253 * convert a property list to two pg array parameter strings
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254 * array format: {elm1,elm2,elm3}
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255 * xmlns: buffer for the xmlns array
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256 * pname: buffer for the property name array
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257 *
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258 * returns 0 on success, 1 otherwise
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259 */
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260 int pg_create_property_param_arrays(WebdavPList *plist, UcxBuffer *xmlns, UcxBuffer *pname) {
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261 ucx_buffer_putc(xmlns, '{');
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262 ucx_buffer_putc(pname, '{');
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263 while(plist) {
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264 WebdavProperty *property = plist->property;
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265 if(property && property->namespace && property->namespace->href && property->name) {
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266 buf_addstr_escaped(xmlns, (const char*)property->namespace->href);
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267 buf_addstr_escaped(pname, (const char*)property->name);
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268 if(plist->next) {
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269 ucx_buffer_putc(xmlns, ',');
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270 ucx_buffer_putc(pname, ',');
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271 }
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272 }
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273 plist = plist->next;
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274 }
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275 int r1 = ucx_buffer_write("}\0", 2, 1, xmlns) == 0;
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276 int r2 = ucx_buffer_write("}\0", 2, 1, pname) == 0;
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277 return r1+r2 != 0;
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278 }
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279
303
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280
376
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281 static int propfind_ext_cmp(const void *f1, const void *f2) {
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282 const PgPropfindExtCol *e1 = f1;
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283 const PgPropfindExtCol *e2 = f2;
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284
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285 if(e1->ext->tableindex != e2->ext->tableindex) {
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286 return e1->ext->tableindex < e2->ext->tableindex ? -1 : 1;
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287 }
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288
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289 return 0;
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290 }
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291
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292
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293 static int pg_create_propfind_query(
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294 WebdavPropfindRequest *rq,
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295 WSBool iscollection,
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296 PgPropfindExtCol *ext,
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297 size_t numext,
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298 UcxBuffer *sql)
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299 {
375
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300 PgWebdavBackend *pgdav = rq->dav->instance;
376
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301 PgRepository *repo = pgdav->repository;
375
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302 int depth = !iscollection ? 0 : rq->depth;
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303
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304 /*
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305 * PROPFIND queries are build from components:
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306 *
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307 * cte cte_recursive or empty
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308 * select
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309 * ppath ppath column
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310 * cols list of columns
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311 * ext_cols* list of extension columns
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312 * from from [table] / from cte
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313 * prop_join join with property table, allprop or plist
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314 * ext_join* extension table join
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315 * where different where clauses for depth0 and depth1
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316 * order depth0 doesn't need order
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317 */
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318
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319 // CTE
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320 if(depth == -1) {
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321 ucx_buffer_puts(sql, sql_propfind_cte_recursive);
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322 }
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323
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324 // select
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325 ucx_buffer_puts(sql, sql_propfind_select);
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326
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327 // ppath
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328 switch(depth) {
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329 case 0: ucx_buffer_puts(sql, sql_propfind_ppath_depth0); break;
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330 case 1: ucx_buffer_puts(sql, sql_propfind_ppath_depth1); break;
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331 case -1: ucx_buffer_puts(sql, sql_propfind_ppath_depth_infinity); break;
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332 }
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333
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334 // cols
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335 ucx_buffer_puts(sql, sql_propfind_cols);
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336
376
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337 // ext_cols
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338 if(ext) {
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339 if(rq->allprop) {
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340 for(int i=0;i<repo->ntables;i++) {
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341 ucx_bprintf(sql, ",x%d.*\n", i);
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342 }
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343 } else {
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344 for(int i=0;i<numext;i++) {
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345 PgPropfindExtCol e = ext[i];
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346 ucx_bprintf(sql, ",x%d.%s\n", e.ext->tableindex, e.ext->column);
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347 }
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348 }
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349 }
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350
375
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351 // from
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352 ucx_buffer_puts(sql, depth == -1 ? sql_propfind_from_cte : sql_propfind_from_table);
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353
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354 // prop join
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355 ucx_buffer_puts(sql, rq->allprop ? sql_propfind_propjoin_allprop : sql_propfind_propjoin_plist);
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356
376
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357 // ext_join
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358 if(ext) {
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359 if(rq->allprop) {
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360 for(int i=0;i<repo->ntables;i++) {
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361 ucx_bprintf(sql, "left join %s x%d on r.resource_id = x%d.resource_id\n", repo->tables[i].table, i, i);
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362 }
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363 } else {
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364 int tab = -1;
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365 for(int i=0;i<numext;i++) {
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366 PgPropfindExtCol e = ext[i];
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367 if(e.ext->tableindex != tab) {
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368 tab = e.ext->tableindex;
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369 ucx_bprintf(sql, "left join %s x%d on r.resource_id = x%d.resource_id\n", repo->tables[tab].table, tab, tab);
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370 }
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371 }
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372 }
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373
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374 }
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375
375
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376 // where
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377 if(depth == 0) {
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378 ucx_buffer_puts(sql, sql_propfind_where_depth0);
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379 } else if(depth == 1) {
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380 ucx_buffer_puts(sql, sql_propfind_where_depth1);
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381 }
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382
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383 // order
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384 if(depth == 1) {
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385 ucx_buffer_puts(sql, sql_propfind_order_depth1);
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386 } else if(depth == -1) {
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387 ucx_buffer_puts(sql, sql_propfind_order_depth_infinity);
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388 }
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389
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390 // end
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391 ucx_buffer_puts(sql, ";\0");
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392
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393 return 0;
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394 }
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395
299
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396 int pg_dav_propfind_init(
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397 WebdavPropfindRequest *rq,
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398 const char *path,
307
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399 const char *href,
299
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400 WebdavPList **outplist)
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401 {
306
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402 PgWebdavBackend *pgdav = rq->dav->instance;
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403
376
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404 // first, check if the resource exists
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405 // if it doesn't exist, we can return immediately
306
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406 int64_t parent_id;
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407 int64_t resource_id;
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408 const char *resourcename;
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409 WSBool iscollection;
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410 int res_errno = 0;
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411 int err = pg_resolve_path(
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412 pgdav->connection,
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413 path,
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414 pgdav->root_resource_id_str,
306
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415 &parent_id,
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416 &resource_id,
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417 NULL, // OID
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418 &resourcename,
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419 &iscollection,
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420 NULL, // stat
346
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diff changeset
421 NULL, // etag
306
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422 &res_errno);
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423
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424 if(err) {
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425 if(res_errno == ENOENT) {
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426 protocol_status(rq->sn, rq->rq, PROTOCOL_NOT_FOUND, NULL);
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427 }
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428 return 1;
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429 }
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430
380
0f85d9bde309 pg propfind stores resource_id in rq->vars
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diff changeset
431 // store resource_id in rq->vars, maybe some other modules
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diff changeset
432 // like to use it
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diff changeset
433 char resource_id_str[32];
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diff changeset
434 snprintf(resource_id_str, 32, "%" PRId64, resource_id);
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435 pblock_nvinsert("resource_id",resource_id_str, rq->rq->vars);
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diff changeset
436
376
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437 // create a list of requsted extended properties
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diff changeset
438 PgPropfindExtCol *ext;
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diff changeset
439 size_t numext;
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440 if(pgdav->repository->ntables == 0) {
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diff changeset
441 // no property extensions configured
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442 ext = NULL;
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443 numext = 0;
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444 } else {
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445 numext = pgdav->repository->prop_ext->count;
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446 ext = pool_calloc(rq->sn->pool, numext, sizeof(PgPropfindExtCol));
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diff changeset
447
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diff changeset
448 if(rq->allprop) {
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449 // the map pgdav->repository->prop_ext contains all property extensions
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diff changeset
450 // we can just convert the map to an array
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diff changeset
451 UcxMapIterator i = ucx_map_iterator(pgdav->repository->prop_ext);
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452 PgPropertyStoreExt *cfg_ext;
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diff changeset
453 int j = 0;
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454 UCX_MAP_FOREACH(key, cfg_ext, i) {
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455 PgPropfindExtCol extcol;
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456 extcol.ext = cfg_ext;
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457 extcol.field_num = -1; // get the field_num after the PQexec
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458 ext[j++] = extcol;
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459 }
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460 } else {
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461 WebdavPListIterator i = webdav_plist_iterator(outplist);
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462 WebdavPList *cur;
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463 int j = 0;
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464 while(webdav_plist_iterator_next(&i, &cur)) {
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465 WSNamespace *ns = cur->property->namespace;
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466 if(ns) {
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467 UcxKey pkey = webdav_property_key((const char*)ns->href, cur->property->name);
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468 PgPropertyStoreExt *cfg_ext = ucx_map_get(pgdav->repository->prop_ext, pkey);
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469 free((void*)pkey.data);
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diff changeset
470 if(cfg_ext) {
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diff changeset
471 PgPropfindExtCol extcol;
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472 extcol.ext = cfg_ext;
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diff changeset
473 extcol.field_num = -1; // get the field_num after the PQexec
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474 ext[j++] = extcol;
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475
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diff changeset
476 webdav_plist_iterator_remove_current(&i);
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477 }
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478 }
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479 }
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diff changeset
480 numext = j;
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481 }
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482
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483 qsort(ext, numext, sizeof(PgPropfindExtCol), propfind_ext_cmp);
61d481d3c2e4 Add support for extended properties in pg propfind
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484 }
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diff changeset
485
375
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486 // create sql query
306
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487 const char *query = NULL;
375
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488 UcxBuffer *sql = ucx_buffer_new(NULL, 2048, UCX_BUFFER_AUTOEXTEND);
376
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diff changeset
489 if(pg_create_propfind_query(rq, iscollection, ext, numext, sql)) {
306
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490 return 1;
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491 }
375
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492 query = sql->space;
306
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493
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494 // get all resources and properties
307
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495 size_t href_len = strlen(href);
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496 char *href_param = pool_malloc(rq->sn->pool, href_len + 1);
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497 memcpy(href_param, href, href_len);
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498 if(href_param[href_len-1] == '/') {
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499 href_len--;
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500 }
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501 href_param[href_len] = '\0';
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502
315
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503 // if allprop is false, create array pair for xmlns/property names
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504 UcxBuffer *xmlns_buf = NULL;
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505 UcxBuffer *pname_buf = NULL;
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506 char *xmlns_param = NULL;
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507 char *pname_param = NULL;
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508 int nparam = 2;
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diff changeset
509 if(!rq->allprop) {
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diff changeset
510 size_t bufsize = rq->propcount < 200 ? 8 + rq->propcount * 32 : 4096;
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511 xmlns_buf = ucx_buffer_new(NULL, bufsize, UCX_BUFFER_AUTOEXTEND);
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diff changeset
512 if(!xmlns_buf) {
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513 return 1;
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514 }
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515 pname_buf = ucx_buffer_new(NULL, bufsize, UCX_BUFFER_AUTOEXTEND);
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diff changeset
516 if(!pname_buf) {
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517 ucx_buffer_free(xmlns_buf);
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518 return 1;
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diff changeset
519 }
376
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diff changeset
520 if(pg_create_property_param_arrays(*outplist, xmlns_buf, pname_buf)) {
315
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521 ucx_buffer_free(xmlns_buf);
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522 ucx_buffer_free(pname_buf);
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diff changeset
523 return 1;
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diff changeset
524 }
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diff changeset
525 xmlns_param = xmlns_buf->space;
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diff changeset
526 pname_param = pname_buf->space;
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diff changeset
527 nparam = 4;
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528 }
307
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diff changeset
529
315
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530 const char* params[4] = { resource_id_str, href_param, xmlns_param, pname_param };
306
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diff changeset
531 PGresult *result = PQexecParams(
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diff changeset
532 pgdav->connection,
315
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533 query,
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534 nparam, // number of parameters
306
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535 NULL,
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diff changeset
536 params, // parameter value
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diff changeset
537 NULL,
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diff changeset
538 NULL,
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diff changeset
539 0); // 0: result in text format
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diff changeset
540 int nrows = PQntuples(result);
307
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diff changeset
541 pool_free(rq->sn->pool, href_param);
315
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diff changeset
542 if(xmlns_buf) {
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diff changeset
543 ucx_buffer_free(xmlns_buf);
b608b7aa43a6 fix sql query for selecting specific properties
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544 ucx_buffer_free(pname_buf);
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diff changeset
545 }
306
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diff changeset
546 if(nrows < 1) {
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diff changeset
547 PQclear(result);
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548 return 1;
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diff changeset
549 }
e03737cea6e2 add semi functional pg propfind handler
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diff changeset
550
300
0e3f275b2492 add instance field to webdav backend struct
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diff changeset
551 PgPropfind *pg = pool_malloc(rq->sn->pool, sizeof(PgPropfind));
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diff changeset
552 rq->userdata = pg;
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diff changeset
553
306
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554 pg->path = path;
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diff changeset
555 pg->resource_id = resource_id;
331
ab26980faad6 implement allprop in default and postgresql webdav backends
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parents: 324
diff changeset
556 pg->vfsproperties = webdav_vfs_properties(outplist, TRUE, rq->allprop, 0);
306
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557 pg->result = result;
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diff changeset
558 pg->nrows = nrows;
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diff changeset
559
376
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diff changeset
560 pg->ext = ext;
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diff changeset
561 pg->numext = numext;
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diff changeset
562 if(ext) {
61d481d3c2e4 Add support for extended properties in pg propfind
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diff changeset
563 // get field_nums for all property extensions
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diff changeset
564 for(int i=0;i<numext;i++) {
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diff changeset
565 PgPropfindExtCol *c = &ext[i];
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diff changeset
566 c->field_num = PQfnumber(result, c->ext->column);
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parents: 375
diff changeset
567 }
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diff changeset
568 }
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diff changeset
569
306
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570 return 0;
299
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571 }
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572
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573 int pg_dav_propfind_do(
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574 WebdavPropfindRequest *rq,
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575 WebdavResponse *response,
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576 VFS_DIR parent,
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577 WebdavResource *resource,
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578 struct stat *s)
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579 {
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580 PgPropfind *pg = rq->userdata;
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581 pool_handle_t *pool = rq->sn->pool;
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582 PGresult *result = pg->result;
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583 WebdavVFSProperties vfsprops = pg->vfsproperties;
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584
313
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585 WSBool vfsprops_set = 0; // are live properties added to the response?
376
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586 WSBool extprops_set = 0; // are extended properties added to the response?
306
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587 int64_t current_resource_id = pg->resource_id;
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588 for(int r=0;r<pg->nrows;r++) {
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589 // columns:
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590 // 0: path
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591 // 1: resource_id
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592 // 2: parent_id
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593 // 3: nodename
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594 // 4: iscollection
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595 // 5: lastmodified
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596 // 6: creationdate
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597 // 7: contentlength
348
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598 // 8: etag
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599 // 9: property prefix
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600 // 10: property xmlns
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601 // 11: property name
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602 // 12: property lang
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603 // 13: property nsdeflist
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604 // 14: property value
306
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605
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606 char *path = PQgetvalue(result, r, 0);
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607 char *res_id = PQgetvalue(result, r, 1);
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608 char *iscollection_str = PQgetvalue(result, r, 4);
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609 WSBool iscollection = iscollection_str && iscollection_str[0] == 't';
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610 int64_t resource_id;
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611 if(!util_strtoint(res_id, &resource_id)) {
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612 log_ereport(LOG_FAILURE, "pg_dav_propfind_do: cannot convert resource_id '%s' to int", res_id);
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613 return 1;
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614 }
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615
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616 if(resource_id != current_resource_id) {
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617 // create a href string for the new resource
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618 // if the resource is a collection, it should have a trailing '/'
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619 size_t pathlen = strlen(path);
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620 if(pathlen == 0) {
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621 log_ereport(LOG_FAILURE, "pg_dav_propfind_do: query returned invalid path");
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622 return 1;
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623 }
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624 if(pathlen > PG_MAX_PATH_LEN) {
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625 log_ereport(LOG_FAILURE, "pg_dav_propfind_do: path too long: resource_id: %s", res_id);
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626 return 1;
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627 }
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628 char *newres_href = pool_malloc(pool, (pathlen*3)+2);
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629 util_uri_escape(newres_href, path);
307
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630 if(iscollection && path[pathlen-1] != '/') {
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631 size_t newres_href_len = strlen(newres_href);
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632 newres_href[newres_href_len] = '/';
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633 newres_href[newres_href_len+1] = '\0';
307
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634 }
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635
306
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636 // new resource
307
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637 resource = response->addresource(response, newres_href);
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638 vfsprops_set = FALSE;
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639 extprops_set = FALSE;
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640 current_resource_id = resource_id;
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641 }
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642
313
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643 // standard webdav live properties
306
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644 if(!vfsprops_set) {
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645 if(vfsprops.getresourcetype) {
307
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646 if(iscollection) {
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647 resource->addproperty(resource, webdav_resourcetype_collection(), 200);
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648 } else {
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649 resource->addproperty(resource, webdav_resourcetype_empty(), 200);
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650 }
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651 }
348
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652
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653 char *lastmodified = PQgetvalue(result, r, 5);
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654 char *contentlength = PQgetvalue(result, r, 7);
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655 time_t t = pg_convert_timestamp(lastmodified);
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656
306
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657 if(vfsprops.getlastmodified) {
311
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658 struct tm tm;
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659 gmtime_r(&t, &tm);
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660
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661 char buf[HTTP_DATE_LEN+1];
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662 strftime(buf, HTTP_DATE_LEN, HTTP_DATE_FMT, &tm);
314
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663 webdav_resource_add_dav_stringproperty(resource, pool, "getlastmodified", buf, strlen(buf));
306
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664 }
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665 if(vfsprops.creationdate) {
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666 char *creationdate = PQgetvalue(result, r, 6);
311
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667 webdav_resource_add_dav_stringproperty(resource, pool, "creationdate", creationdate, strlen(creationdate));
306
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668 }
314
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669 if(vfsprops.getcontentlength && !iscollection) {
309
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670 webdav_resource_add_dav_stringproperty(resource, pool, "getcontentlength", contentlength, strlen(contentlength));
306
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671 }
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672 if(vfsprops.getetag) {
348
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673 char *etag = PQgetvalue(result, r, 8);
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674 if(!PQgetisnull(result, r, 8)) {
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675 webdav_resource_add_dav_stringproperty(resource, pool, "getetag", etag, strlen(etag));
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676 } else {
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677 int64_t ctlen;
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678 if(util_strtoint(contentlength, &ctlen)) {
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679 char etag[MAX_ETAG];
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680 http_format_etag(rq->sn, rq->rq, etag, MAX_ETAG, ctlen, t);
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681 webdav_resource_add_dav_stringproperty(resource, pool, "getetag", etag, strlen(etag));
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682 }
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683 }
306
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684 }
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685
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686 vfsprops_set = TRUE;
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687 }
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688
376
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689 if(!extprops_set) {
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diff changeset
690 // extended properties
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diff changeset
691 if(pg->ext) {
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diff changeset
692 for(int extc=0;extc<pg->numext;extc++) {
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diff changeset
693 PgPropfindExtCol ext = pg->ext[extc];
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694 int fieldnum = ext.field_num;
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diff changeset
695
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diff changeset
696 if(!PQgetisnull(result, r, fieldnum)) {
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diff changeset
697 char *ext_value = PQgetvalue(result, r, fieldnum);
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diff changeset
698 int ext_value_len = PQgetlength(result, r, fieldnum);
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diff changeset
699 char ext_xmlns_prefix[32];
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diff changeset
700 snprintf(ext_xmlns_prefix, 32, "x%d", ext.ext->tableindex);
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701
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diff changeset
702 WebdavProperty *property = pool_malloc(pool, sizeof(WebdavProperty));
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diff changeset
703 property->lang = NULL;
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diff changeset
704 property->name = pool_strdup(pool, ext.ext->name);
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diff changeset
705
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diff changeset
706 xmlNs *namespace = pool_malloc(pool, sizeof(xmlNs));
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diff changeset
707 memset(namespace, 0, sizeof(struct _xmlNs));
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parents: 375
diff changeset
708 namespace->href = (xmlChar*)pool_strdup(pool, ext.ext->ns);
61d481d3c2e4 Add support for extended properties in pg propfind
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parents: 375
diff changeset
709 namespace->prefix = (xmlChar*)pool_strdup(pool, ext_xmlns_prefix);
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parents: 375
diff changeset
710 property->namespace = namespace;
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parents: 375
diff changeset
711
61d481d3c2e4 Add support for extended properties in pg propfind
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parents: 375
diff changeset
712 char *content = pool_malloc(pool, ext_value_len+1);
61d481d3c2e4 Add support for extended properties in pg propfind
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parents: 375
diff changeset
713 memcpy(content, ext_value, ext_value_len);
61d481d3c2e4 Add support for extended properties in pg propfind
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parents: 375
diff changeset
714 content[ext_value_len] = '\0';
61d481d3c2e4 Add support for extended properties in pg propfind
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parents: 375
diff changeset
715
61d481d3c2e4 Add support for extended properties in pg propfind
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diff changeset
716 WebdavNSList *nslist = pool_malloc(pool, sizeof(WebdavNSList));
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diff changeset
717 nslist->namespace = namespace;
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diff changeset
718 nslist->prev = NULL;
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diff changeset
719 nslist->next = NULL;
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diff changeset
720
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diff changeset
721 property->vtype = WS_VALUE_XML_DATA;
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diff changeset
722 property->value.data.data = content;
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diff changeset
723 property->value.data.length = ext_value_len;
61d481d3c2e4 Add support for extended properties in pg propfind
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diff changeset
724 property->value.data.namespaces = nslist;
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parents: 375
diff changeset
725
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diff changeset
726 resource->addproperty(resource, property, 200);
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diff changeset
727 }
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parents: 375
diff changeset
728 }
61d481d3c2e4 Add support for extended properties in pg propfind
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parents: 375
diff changeset
729 }
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parents: 375
diff changeset
730
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parents: 375
diff changeset
731 extprops_set = TRUE;
61d481d3c2e4 Add support for extended properties in pg propfind
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diff changeset
732 }
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diff changeset
733
306
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diff changeset
734 // dead properties
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diff changeset
735 if(!PQgetisnull(result, r, 9)) {
348
bdd31584141f implement etag in pg propfind
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parents: 346
diff changeset
736 char *prefix = PQgetvalue(result, r, 9);
bdd31584141f implement etag in pg propfind
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parents: 346
diff changeset
737 char *xmlns = PQgetvalue(result, r, 10);
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parents: 346
diff changeset
738 char *pname = PQgetvalue(result, r, 11);
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parents: 346
diff changeset
739 char *lang = PQgetvalue(result, r, 12);
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parents: 346
diff changeset
740 char *nsdef = PQgetvalue(result, r, 13);
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parents: 346
diff changeset
741 char *pvalue = PQgetvalue(result, r, 14);
317
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diff changeset
742
348
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diff changeset
743 int pvalue_len = PQgetlength(result, r, 14);
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diff changeset
744 WSBool lang_isnull = PQgetisnull(result, r, 12);
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diff changeset
745 WSBool nsdef_isnull = PQgetisnull(result, r, 13);
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diff changeset
746 WSBool pvalue_isnull = PQgetisnull(result, r, 14);
306
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diff changeset
747
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diff changeset
748 WebdavProperty *property = pool_malloc(pool, sizeof(WebdavProperty));
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diff changeset
749 property->lang = NULL;
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diff changeset
750 property->name = pool_strdup(pool, pname);
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diff changeset
751
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diff changeset
752 xmlNs *namespace = pool_malloc(pool, sizeof(xmlNs));
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diff changeset
753 memset(namespace, 0, sizeof(struct _xmlNs));
307
8787cb5ebab3 fix href in pg propfind response
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diff changeset
754 namespace->href = (xmlChar*)pool_strdup(pool, xmlns);
317
09676b559091 store property prefix in the database
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diff changeset
755 namespace->prefix = (xmlChar*)pool_strdup(pool, prefix);
306
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diff changeset
756 property->namespace = namespace;
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diff changeset
757
317
09676b559091 store property prefix in the database
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758 if(!lang_isnull) {
318
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diff changeset
759 property->lang = pool_strdup(pool, lang);
317
09676b559091 store property prefix in the database
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diff changeset
760 }
09676b559091 store property prefix in the database
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parents: 315
diff changeset
761
09676b559091 store property prefix in the database
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parents: 315
diff changeset
762 if(!pvalue_isnull) {
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diff changeset
763 char *content = pool_malloc(pool, pvalue_len+1);
09676b559091 store property prefix in the database
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diff changeset
764 memcpy(content, pvalue, pvalue_len);
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diff changeset
765 content[pvalue_len] = '\0';
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diff changeset
766
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diff changeset
767 if(nsdef_isnull) {
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diff changeset
768 property->vtype = WS_VALUE_TEXT;
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diff changeset
769 property->value.text.str = content;
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parents: 315
diff changeset
770 property->value.text.length = pvalue_len;
09676b559091 store property prefix in the database
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parents: 315
diff changeset
771 } else {
376
61d481d3c2e4 Add support for extended properties in pg propfind
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diff changeset
772 WebdavNSList *nslist = wsxml_string2nslist(pool, nsdef);
324
44cf877b3d9f add support for xml properties in propfind/proppatch requests (pg)
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diff changeset
773 property->vtype = WS_VALUE_XML_DATA;
376
61d481d3c2e4 Add support for extended properties in pg propfind
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parents: 375
diff changeset
774 property->value.data.data = content;
61d481d3c2e4 Add support for extended properties in pg propfind
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parents: 375
diff changeset
775 property->value.data.length = pvalue_len;
61d481d3c2e4 Add support for extended properties in pg propfind
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parents: 375
diff changeset
776 property->value.data.namespaces = nslist;
324
44cf877b3d9f add support for xml properties in propfind/proppatch requests (pg)
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diff changeset
777
317
09676b559091 store property prefix in the database
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parents: 315
diff changeset
778 }
09676b559091 store property prefix in the database
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parents: 315
diff changeset
779 }
306
e03737cea6e2 add semi functional pg propfind handler
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diff changeset
780
e03737cea6e2 add semi functional pg propfind handler
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diff changeset
781 resource->addproperty(resource, property, 200);
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diff changeset
782 }
313
3ad0b65ec838 test pg propfind response
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parents: 312
diff changeset
783 }
306
e03737cea6e2 add semi functional pg propfind handler
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diff changeset
784
e03737cea6e2 add semi functional pg propfind handler
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diff changeset
785 return 0;
299
f927ef81a12b add empty pg webdav funcs
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parents:
diff changeset
786 }
f927ef81a12b add empty pg webdav funcs
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
787
f927ef81a12b add empty pg webdav funcs
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parents:
diff changeset
788 int pg_dav_propfind_finish(WebdavPropfindRequest *rq) {
312
f7544e220a0f add pg propfind cleanup
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parents: 311
diff changeset
789 PgPropfind *pg = rq->userdata;
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parents: 311
diff changeset
790 pool_handle_t *pool = rq->sn->pool;
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parents: 311
diff changeset
791 PGresult *result = pg->result;
f7544e220a0f add pg propfind cleanup
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parents: 311
diff changeset
792
f7544e220a0f add pg propfind cleanup
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parents: 311
diff changeset
793 PQclear(result);
f7544e220a0f add pg propfind cleanup
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parents: 311
diff changeset
794
306
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diff changeset
795 return 0;
299
f927ef81a12b add empty pg webdav funcs
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parents:
diff changeset
796 }
f927ef81a12b add empty pg webdav funcs
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parents:
diff changeset
797
318
60870dbac94f add basic pg proppatch implementation
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diff changeset
798 enum PgDavProp {
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diff changeset
799 PG_DAV_PROPPATCH_NOT_ALLOWED = 0,
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800 PG_DAV_CREATIONDATE,
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diff changeset
801 PG_DAV_DISPLAYNAME,
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diff changeset
802 PG_DAV_DEADPROP
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803 };
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diff changeset
804 /*
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805 * checks if the property can be manipulated
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diff changeset
806 */
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diff changeset
807 static enum PgDavProp proppatch_check_dav_prop(const char *name) {
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parents: 317
diff changeset
808 if(!strcmp(name, "getlastmodified")) {
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parents: 317
diff changeset
809 return PG_DAV_PROPPATCH_NOT_ALLOWED;
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parents: 317
diff changeset
810 } else if(!strcmp(name, "getcontentlength")) {
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diff changeset
811 return PG_DAV_PROPPATCH_NOT_ALLOWED;
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parents: 317
diff changeset
812 } else if(!strcmp(name, "resourcetype")) {
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diff changeset
813 return PG_DAV_PROPPATCH_NOT_ALLOWED;
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diff changeset
814 } else if(!strcmp(name, "getetag")) {
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diff changeset
815 return PG_DAV_PROPPATCH_NOT_ALLOWED;
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diff changeset
816 } else if(!strcmp(name, "creationdate")) {
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diff changeset
817 return PG_DAV_CREATIONDATE;
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diff changeset
818 } else if(!strcmp(name, "displayname")) {
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diff changeset
819 return PG_DAV_DISPLAYNAME;
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diff changeset
820 }
60870dbac94f add basic pg proppatch implementation
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diff changeset
821 return PG_DAV_DEADPROP;
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diff changeset
822 }
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diff changeset
823
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diff changeset
824 typedef struct {
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diff changeset
825 WebdavProperty *creationdate;
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diff changeset
826 WebdavProperty *displayname;
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diff changeset
827 int error;
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diff changeset
828 } PgProppatchOpResult;
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diff changeset
829
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diff changeset
830 typedef int(*pg_proppatch_func)(PgWebdavBackend*, WebdavProppatchRequest*, WebdavResource*, WebdavProperty*, void*);
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diff changeset
831
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diff changeset
832 /*
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diff changeset
833 * This function iterates the property list 'plist',
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diff changeset
834 * analyses if any DAV: property is in the list
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diff changeset
835 * and calls opfunc for the each property
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diff changeset
836 *
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diff changeset
837 * If the property list contains the properties creationdate or displayname,
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diff changeset
838 * the pointers to these properties will be stored in the result structure
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diff changeset
839 */
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diff changeset
840 static PgProppatchOpResult pg_proppatch_op(
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diff changeset
841 PgWebdavBackend *pgdav,
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diff changeset
842 WebdavProppatchRequest *request,
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diff changeset
843 WebdavResource *response,
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diff changeset
844 WebdavPList **plist,
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diff changeset
845 enum PgDavProp forbidden_extra,
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diff changeset
846 pg_proppatch_func opfunc,
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diff changeset
847 void *op_userdata)
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diff changeset
848 {
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diff changeset
849 PgProppatchOpResult result;
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diff changeset
850 result.creationdate = NULL;
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851 result.displayname = NULL;
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852 result.error = 0;
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853
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854 WebdavPListIterator i = webdav_plist_iterator(plist);
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855 WebdavPList *cur;
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856 while(webdav_plist_iterator_next(&i, &cur)) {
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857 WebdavProperty *property = cur->property;
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858 WSNamespace *ns = property->namespace;
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859 if(!ns) {
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860 continue; // maybe we should abort
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861 }
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862
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863 // check if the property is a DAV: property that requires special
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864 // handling
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865 // get* properties can't be manipulated
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866 // some properties can't be removed
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867 if(!strcmp((const char*)ns->href, "DAV:")) {
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868 const char *name = property->name;
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869 enum PgDavProp davprop = proppatch_check_dav_prop(name);
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870 if(davprop != PG_DAV_DEADPROP) {
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871 if(davprop == PG_DAV_PROPPATCH_NOT_ALLOWED || davprop == forbidden_extra) {
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872 response->addproperty(response, property, 409);
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873 } else if(davprop == PG_DAV_CREATIONDATE) {
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874 result.creationdate = property;
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875 } else if(davprop == PG_DAV_DISPLAYNAME) {
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876 result.displayname = property;
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877 }
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878 webdav_plist_iterator_remove_current(&i);
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879 continue;
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880 }
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881 }
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882
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883 // call op func (set, remove specific code)
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884 if(opfunc(pgdav, request, response, property, op_userdata)) {
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885 result.error = 1;
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886 break;
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887 }
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888
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889 webdav_plist_iterator_remove_current(&i);
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890 }
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891
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892 return result;
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893 }
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894
377
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895 #define PG_PROPPATCH_EXT_SET 0
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896 #define PG_PROPPATCH_EXT_REMOVE 1
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897
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898 static int pg_proppatch_add_ext_prop(
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899 pool_handle_t *pool,
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900 PgWebdavBackend *pgdav,
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901 PgProppatch *proppatch,
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902 WebdavProperty *property,
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903 int proppatch_op)
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904 {
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905 UcxKey pkey = webdav_property_key((const char*)property->namespace->href, property->name);
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906 PgPropertyStoreExt *ext = ucx_map_get(pgdav->repository->prop_ext, pkey);
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907 free((void*)pkey.data);
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908 if(ext) {
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909 PgProppatchExtProp *ext_prop = pool_malloc(pool, sizeof(PgProppatchExtProp));
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910 if(!ext_prop) {
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911 return 1;
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912 }
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913 ext_prop->column = ext;
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914 ext_prop->property = property;
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915
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916 UcxAllocator a = util_pool_allocator(pool);
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917 proppatch->ext[ext->tableindex].isused = TRUE;
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918
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919 UcxList **list = proppatch_op == PG_PROPPATCH_EXT_REMOVE
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920 ? &proppatch->ext[ext->tableindex].remove
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921 : &proppatch->ext[ext->tableindex].set;
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922 *list = ucx_list_append_a(&a, *list, ext_prop);
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923
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924 proppatch->extensions_used = TRUE;
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925 }
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diff changeset
926
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927 return 0;
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928 }
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929
318
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930 static int pg_dav_set_property(
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931 PgWebdavBackend *pgdav,
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932 WebdavProppatchRequest *request,
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933 WebdavResource *response,
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934 WebdavProperty *property,
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935 void *userdata)
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936 {
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937 pool_handle_t *pool = request->sn->pool;
377
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diff changeset
938 PgProppatch *proppatch = request->userdata;
318
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939 WSNamespace *ns = property->namespace;
377
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940
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941 // check if the property belongs to an extension
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diff changeset
942 if(proppatch->ext && ns) {
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diff changeset
943 return pg_proppatch_add_ext_prop(pool, pgdav, proppatch, property, PG_PROPPATCH_EXT_SET);
c011bc2b3143 Add support for extended properties in pg proppatch
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944 }
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945
318
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946 char *resource_id_str = userdata;
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947 int ret = 0;
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948
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949 // convert the property value to WSXmlData
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950 // property->vtype == WS_VALUE_XML_NODE should always be true
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951 WSXmlData *property_value = property->vtype == WS_VALUE_XML_NODE ? wsxml_node2data(pool, property->value.node) : NULL;
324
44cf877b3d9f add support for xml properties in propfind/proppatch requests (pg)
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952 char *value_str = NULL;
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diff changeset
953 char *nsdef_str = NULL;
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diff changeset
954 if(property_value) {
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diff changeset
955 value_str = property_value->data;
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diff changeset
956 if(property_value->namespaces) {
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diff changeset
957 nsdef_str = wsxml_nslist2string(pool, property_value->namespaces);
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diff changeset
958 if(!nsdef_str) {
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959 return 1; // OOM
44cf877b3d9f add support for xml properties in propfind/proppatch requests (pg)
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diff changeset
960 }
44cf877b3d9f add support for xml properties in propfind/proppatch requests (pg)
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diff changeset
961 }
44cf877b3d9f add support for xml properties in propfind/proppatch requests (pg)
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diff changeset
962 }
318
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963
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964 // exec sql
324
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diff changeset
965 const char* params[7] = { resource_id_str, (const char*)ns->prefix, (const char*)ns->href, property->name, NULL, nsdef_str, value_str};
318
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966 PGresult *result = PQexecParams(
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967 pgdav->connection,
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968 sql_proppatch_set,
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diff changeset
969 7, // number of parameters
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970 NULL,
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971 params, // parameter value
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diff changeset
972 NULL,
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diff changeset
973 NULL,
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diff changeset
974 0); // 0: result in text format
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diff changeset
975
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diff changeset
976 if(PQresultStatus(result) != PGRES_COMMAND_OK) {
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diff changeset
977 response->addproperty(response, property, 500);
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diff changeset
978 //printf(PQerrorMessage(pgdav->connection));
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diff changeset
979 //fflush(stdout);
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980 ret = 1;
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diff changeset
981 } else {
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diff changeset
982 response->addproperty(response, property, 200);
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diff changeset
983 }
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984 PQclear(result);
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985 if(value_str) pool_free(pool, value_str);
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diff changeset
986
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987 return ret;
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diff changeset
988 }
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diff changeset
989
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990
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diff changeset
991 static int pg_dav_remove_property(
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992 PgWebdavBackend *pgdav,
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993 WebdavProppatchRequest *request,
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994 WebdavResource *response,
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995 WebdavProperty *property,
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996 void *userdata)
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997 {
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998 pool_handle_t *pool = request->sn->pool;
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999 PgProppatch *proppatch = request->userdata;
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1000 WSNamespace *ns = property->namespace;
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1001
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1002 // check if the property belongs to an extension
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1003 if(proppatch->ext && ns) {
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1004 return pg_proppatch_add_ext_prop(pool, pgdav, proppatch, property, PG_PROPPATCH_EXT_REMOVE);
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1005 }
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1006
318
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1007 char *resource_id_str = userdata;
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1008 int ret = 0;
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1009
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1010 // exec sql
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1011 const char* params[3] = { resource_id_str, (const char*)ns->href, property->name };
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1012 PGresult *result = PQexecParams(
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1013 pgdav->connection,
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1014 sql_proppatch_remove,
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1015 3, // number of parameters
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1016 NULL,
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1017 params, // parameter value
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1018 NULL,
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1019 NULL,
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1020 0); // 0: result in text format
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1021
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1022 if(PQresultStatus(result) != PGRES_COMMAND_OK) {
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1023 response->addproperty(response, property, 500);
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1024 //printf(PQerrorMessage(pgdav->connection));
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1025 //fflush(stdout);
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1026 ret = 1;
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1027 }
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1028 PQclear(result);
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1029
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1030 return ret;
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1031 }
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1032
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1033
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1034 /*
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1035 * Creates an SQL query for inserting a new row to an extension table
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1036 * A parameter list for PQexecParams will also be generated, however
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1037 * params[0] will be empty (resource_id str)
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1038 *
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1039 * Query: insert into <table> (resource_id, col1, ...) values ($1, $2 ...);
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1040 */
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1041 static UcxBuffer* ext_row_create_insert_query(WebdavProppatchRequest *request, PgProppatchExt *ext, PgExtTable *table, char *** params, size_t *nparams) {
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1042 pool_handle_t *pool = request->sn->pool;
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1043
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1044 UcxBuffer *sql = ucx_buffer_new(NULL, 1024, UCX_BUFFER_AUTOEXTEND);
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1045 if(!sql) {
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1046 return NULL;
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1047 }
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1048
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1049 size_t pg_nparams = ucx_list_size(ext->set) + 1;
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1050 char** pg_params = pool_calloc(pool, pg_nparams, sizeof(char*));
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1051 if(!pg_params) {
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1052 ucx_buffer_free(sql);
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1053 return NULL;
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1054 }
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1055
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1056 ucx_buffer_puts(sql, "insert into ");
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1057 ucx_buffer_puts(sql, table->table);
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1058 ucx_buffer_puts(sql, "(resource_id");
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1059 UCX_FOREACH(elm, ext->set) {
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1060 PgProppatchExtProp *prop = elm->data;
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1061 ucx_bprintf(sql, ",%s", prop->column->name);
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1062 }
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1063
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1064 ucx_buffer_puts(sql, ") values ($1\n");
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1065 int i = 1;
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1066 UCX_FOREACH(elm, ext->set) {
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1067 PgProppatchExtProp *prop = elm->data;
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1068 WebdavProperty *property = prop->property;
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1069 // convert the property value to WSXmlData
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1070 // property->vtype == WS_VALUE_XML_NODE should always be true
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1071 WSXmlData *property_value = property->vtype == WS_VALUE_XML_NODE ? wsxml_node2data(pool, property->value.node) : NULL;
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1072 char *value_str = NULL;
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1073 //char *nsdef_str = NULL;
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1074 if(property_value) {
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1075 value_str = property_value->data;
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1076 if(property_value->namespaces) {
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1077 // currently only text data is supported
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1078 pool_free(pool, params);
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1079 ucx_buffer_free(sql);
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1080 return NULL;
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1081 }
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1082 }
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1083
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1084 pg_params[i] = value_str;
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1085 ucx_bprintf(sql, ",$%d", ++i);
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1086 }
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1087 ucx_buffer_puts(sql, ");");
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1088
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1089
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1090 //printf("\n\n%.*s\n\n", (int)sql->size, sql->space);
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1091 //fflush(stdout);
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1092
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1093 *params = pg_params;
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1094 *nparams = pg_nparams;
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1095
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1096 return sql;
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1097 }
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1098
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1099 /*
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1100 * Creates an SQL query for updating an extension table row
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1101 * A parameter list for PQexecParams will also be generated, however
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1102 * params[0] will be empty (resource_id str)
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1103 *
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1104 * Query: update <table> set
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1105 * col1 = $2,
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1106 * col2 = $3,
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1107 * ...
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1108 * where resource_id = $1 ;
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1109 */
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1110 static UcxBuffer* ext_row_create_update_query(WebdavProppatchRequest *request, PgProppatchExt *ext, PgExtTable *table, char *** params, size_t *nparams) {
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1111 pool_handle_t *pool = request->sn->pool;
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1112
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1113 UcxBuffer *sql = ucx_buffer_new(NULL, 1024, UCX_BUFFER_AUTOEXTEND);
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1114 if(!sql) {
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1115 return NULL;
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1116 }
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1117
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1118 ucx_buffer_puts(sql, "update ");
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1119 ucx_buffer_puts(sql, table->table);
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1120 ucx_buffer_puts(sql, " set\n");
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1121
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1122 size_t pg_nparams = ucx_list_size(ext->set) + 1;
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1123 char** pg_params = pool_calloc(pool, pg_nparams, sizeof(char*));
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1124 if(!pg_params) {
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1125 ucx_buffer_free(sql);
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1126 return NULL;
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1127 }
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1128
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1129 int i = 1;
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1130 UCX_FOREACH(elm, ext->set) {
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1131 PgProppatchExtProp *prop = elm->data;
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diff changeset
1132 WebdavProperty *property = prop->property;
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1133 // convert the property value to WSXmlData
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diff changeset
1134 // property->vtype == WS_VALUE_XML_NODE should always be true
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diff changeset
1135 WSXmlData *property_value = property->vtype == WS_VALUE_XML_NODE ? wsxml_node2data(pool, property->value.node) : NULL;
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diff changeset
1136 char *value_str = NULL;
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diff changeset
1137 //char *nsdef_str = NULL;
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diff changeset
1138 if(property_value) {
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1139 value_str = property_value->data;
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diff changeset
1140 if(property_value->namespaces) {
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diff changeset
1141 // currently only text data is supported
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diff changeset
1142 pool_free(pool, params);
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diff changeset
1143 ucx_buffer_free(sql);
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diff changeset
1144 return NULL;
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diff changeset
1145 }
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diff changeset
1146 }
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diff changeset
1147
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diff changeset
1148 pg_params[i] = value_str;
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diff changeset
1149 ucx_bprintf(sql, " %s = $%d,\n", prop->column->name, ++i);
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diff changeset
1150 }
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diff changeset
1151
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diff changeset
1152 UCX_FOREACH(elm, ext->remove) {
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diff changeset
1153 PgProppatchExtProp *prop = elm->data;
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diff changeset
1154 ucx_bprintf(sql, " %s = NULL,\n", prop->column->name);
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diff changeset
1155 }
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diff changeset
1156
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diff changeset
1157 // check if any write worked
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diff changeset
1158 if(sql->pos == 0) {
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diff changeset
1159 ucx_buffer_free(sql);
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diff changeset
1160 pool_free(pool, pg_params);
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diff changeset
1161 return NULL;
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diff changeset
1162 }
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diff changeset
1163
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diff changeset
1164 // last line should end with ',' '\n'
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diff changeset
1165 // replace ',' with space
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diff changeset
1166 if(sql->space[sql->pos-2] == ',') {
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diff changeset
1167 sql->space[sql->pos-2] = ' ';
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diff changeset
1168 }
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diff changeset
1169
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diff changeset
1170 ucx_bprintf(sql, "where resource_id = $1 ;\0");
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diff changeset
1171
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diff changeset
1172 //printf("\n\n%.*s\n\n", (int)sql->size, sql->space);
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diff changeset
1173 //fflush(stdout);
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1174
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diff changeset
1175 *params = pg_params;
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1176 *nparams = pg_nparams;
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1177
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diff changeset
1178 return sql;
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diff changeset
1179 }
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diff changeset
1180
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diff changeset
1181 /*
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1182 * Executes an SQL insert for the extension table
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1183 */
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diff changeset
1184 int ext_row_insert(WebdavProppatchRequest *request, PgProppatchExt *ext, PgExtTable *table) {
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diff changeset
1185 PgWebdavBackend *pgdav = request->dav->instance;
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diff changeset
1186 PgProppatch *proppatch = request->userdata;
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diff changeset
1187 pool_handle_t *pool = request->sn->pool;
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diff changeset
1188
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diff changeset
1189 char **params;
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diff changeset
1190 size_t nparam;
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diff changeset
1191 UcxBuffer *sql = ext_row_create_insert_query(request, ext, table, &params, &nparam);
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diff changeset
1192 if(!sql) {
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1193 return 1;
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1194 }
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1195
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1196 char resource_id_str[32];
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diff changeset
1197 snprintf(resource_id_str, 32, "%" PRId64, proppatch->resource_id);
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diff changeset
1198 params[0] = resource_id_str;
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diff changeset
1199
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diff changeset
1200 PGresult *result = PQexecParams(
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diff changeset
1201 pgdav->connection,
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diff changeset
1202 sql->space,
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diff changeset
1203 nparam, // number of parameters
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diff changeset
1204 NULL,
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diff changeset
1205 ( const char *const *)params, // parameter value
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diff changeset
1206 NULL,
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diff changeset
1207 NULL,
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diff changeset
1208 0); // 0: result in text format
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diff changeset
1209
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diff changeset
1210 ucx_buffer_free(sql);
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diff changeset
1211
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diff changeset
1212 int ret = 1;
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diff changeset
1213 if(PQresultStatus(result) == PGRES_COMMAND_OK) {
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diff changeset
1214 // command ok, check if any row was updated
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diff changeset
1215 char *nrows_affected = PQcmdTuples(result);
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diff changeset
1216 if(nrows_affected[0] == '1') {
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diff changeset
1217 ret = 0;
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diff changeset
1218 } else {
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diff changeset
1219 log_ereport(LOG_FAILURE, "pg: extension row insert failed");
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diff changeset
1220 }
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diff changeset
1221 } else {
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diff changeset
1222 log_ereport(LOG_FAILURE, "pg: extension row insert failed: %s", PQresultErrorMessage(result));
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diff changeset
1223 }
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diff changeset
1224
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diff changeset
1225 PQclear(result);
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diff changeset
1226
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diff changeset
1227 return ret;
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parents: 376
diff changeset
1228 }
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diff changeset
1229
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diff changeset
1230 /*
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diff changeset
1231 * Executes an SQL update for the extension table
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diff changeset
1232 */
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diff changeset
1233 int ext_row_update(WebdavProppatchRequest *request, PgProppatchExt *ext, PgExtTable *table) {
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diff changeset
1234 PgWebdavBackend *pgdav = request->dav->instance;
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diff changeset
1235 PgProppatch *proppatch = request->userdata;
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diff changeset
1236 pool_handle_t *pool = request->sn->pool;
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diff changeset
1237
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diff changeset
1238 char **params;
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diff changeset
1239 size_t nparam;
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diff changeset
1240 UcxBuffer *sql = ext_row_create_update_query(request, ext, table, &params, &nparam);
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diff changeset
1241 if(!sql) {
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diff changeset
1242 return 1;
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diff changeset
1243 }
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diff changeset
1244
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diff changeset
1245 char resource_id_str[32];
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diff changeset
1246 snprintf(resource_id_str, 32, "%" PRId64, proppatch->resource_id);
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diff changeset
1247 params[0] = resource_id_str;
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diff changeset
1248
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diff changeset
1249 PGresult *result = PQexecParams(
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diff changeset
1250 pgdav->connection,
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diff changeset
1251 sql->space,
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diff changeset
1252 nparam, // number of parameters
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diff changeset
1253 NULL,
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parents: 376
diff changeset
1254 ( const char *const *)params, // parameter value
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diff changeset
1255 NULL,
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parents: 376
diff changeset
1256 NULL,
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diff changeset
1257 0); // 0: result in text format
c011bc2b3143 Add support for extended properties in pg proppatch
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diff changeset
1258
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diff changeset
1259 ucx_buffer_free(sql);
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diff changeset
1260
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diff changeset
1261 int ret = 1;
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diff changeset
1262 if(PQresultStatus(result) == PGRES_COMMAND_OK) {
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parents: 376
diff changeset
1263 // command ok, check if any row was updated
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diff changeset
1264 char *nrows_affected = PQcmdTuples(result);
378
0344108db255 make original proppatch property list available to all backends
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 377
diff changeset
1265 if(nrows_affected[0] == '1') {
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parents: 377
diff changeset
1266 ret = 0;
0344108db255 make original proppatch property list available to all backends
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parents: 377
diff changeset
1267 } else if(nrows_affected[0] == '0') {
377
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diff changeset
1268 // no rows affected, that means we have to insert a new row
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diff changeset
1269 // in the extension table for this resource
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diff changeset
1270
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1271 // TODO: cleanup params
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1272
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1273 ret = ext_row_insert(request, ext, table);
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1274 }
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1275 } else {
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1276 log_ereport(LOG_FAILURE, "pg: extension row update failed: %s", PQresultErrorMessage(result));
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diff changeset
1277 }
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diff changeset
1278
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1279
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1280 PQclear(result);
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1281
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1282 return ret;
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diff changeset
1283 }
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1284
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1285 static int pg_dav_update_extension_tables(WebdavProppatchRequest *request) {
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1286 PgWebdavBackend *pgdav = request->dav->instance;
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diff changeset
1287 PgProppatch *proppatch = request->userdata;
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diff changeset
1288
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1289 for(int i=0;i<proppatch->numext;i++) {
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1290 if(proppatch->ext[i].isused) {
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diff changeset
1291 if(ext_row_update(request, &proppatch->ext[i], &pgdav->repository->tables[i])) {
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1292 // extension proppatch failed
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1293 return 1;
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1294 }
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1295 }
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diff changeset
1296 }
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diff changeset
1297
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1298 return 0;
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1299 }
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1300
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1301 int pg_dav_proppatch_do(
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1302 WebdavProppatchRequest *request,
f927ef81a12b add empty pg webdav funcs
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diff changeset
1303 WebdavResource *response,
f927ef81a12b add empty pg webdav funcs
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diff changeset
1304 VFSFile *file,
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1305 WebdavPList **out_set,
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1306 WebdavPList **out_remove)
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1307 {
318
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1308 PgWebdavBackend *pgdav = request->dav->instance;
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1309 pool_handle_t *pool = request->sn->pool;
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1310 char *path = pblock_findkeyval(pb_key_path, request->rq->vars);
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1311
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1312 PgProppatch proppatch;
378
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1313 proppatch.extensions_used = FALSE;
377
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1314 if(pgdav->repository->ntables == 0) {
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1315 proppatch.ext = NULL;
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1316 proppatch.numext = 0;
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1317 } else {
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1318 // some properties are stored in additional tables
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1319 // for each table we create a PgProppatchExt record
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1320 // which stores data about, which tables are used
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1321 // and which properties (columns) should be updated
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1322 //
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1323 // proppatch.ext[i] should contain the data for repository->tables[i]
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1324 proppatch.numext = pgdav->repository->ntables;
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1325 proppatch.ext = pool_calloc(request->sn->pool, proppatch.numext, sizeof(PgProppatchExt));
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1326 if(!proppatch.ext) {
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1327 return 1; // OOM
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1328 }
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1329 }
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1330 request->userdata = &proppatch;
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1331
318
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1332 // check if the resource exists, we also need the resource_id
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1333 int64_t parent_id;
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1334 int64_t resource_id;
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1335 const char *resourcename;
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1336 WSBool iscollection;
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1337 int res_errno = 0;
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1338 int err = pg_resolve_path(
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1339 pgdav->connection,
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1340 path,
374
77506ec632a4 use configured root node from PgRepository in pg vfs/webdav
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1341 pgdav->root_resource_id_str,
318
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1342 &parent_id,
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1343 &resource_id,
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1344 NULL, // OID
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1345 &resourcename,
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1346 &iscollection,
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1347 NULL, // stat
346
784b24381bed extend postgresql vfs to store an etag in the file
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diff changeset
1348 NULL, // etag
318
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1349 &res_errno);
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1350
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1351 if(err) {
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1352 return 1;
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1353 }
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1354
377
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1355 proppatch.resource_id = resource_id;
378
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1356
318
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1357 // because proppatch must be atomic and we have multiple sql
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1358 // queries and other backends that do stuff that could fail
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diff changeset
1359 // we need the possibility to reverse all changes
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1360 // we use a transaction savepoint for this
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1361 PGresult *result = PQexec(pgdav->connection, "savepoint proppatch;");
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1362 ExecStatusType execStatus = PQresultStatus(result);
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1363 PQclear(result);
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1364 if(execStatus != PGRES_COMMAND_OK) {
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1365 return 1;
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1366 }
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1367
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1368 char resource_id_str[32];
378
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diff changeset
1369 snprintf(resource_id_str, 32, "%" PRId64, resource_id);
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diff changeset
1370 // store the resource_id in rq->vars, because it could be useful later
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diff changeset
1371 pblock_nvinsert("resource_id", resource_id_str, request->rq->vars);
318
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1372
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1373 int ret = 0;
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1374 PgProppatchOpResult set_res = pg_proppatch_op(
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1375 pgdav,
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diff changeset
1376 request,
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diff changeset
1377 response,
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1378 out_set,
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diff changeset
1379 PG_DAV_PROPPATCH_NOT_ALLOWED,
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1380 pg_dav_set_property,
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1381 resource_id_str);
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1382 if(set_res.error) {
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1383 return 1;
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1384 }
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1385 PgProppatchOpResult rm_res = pg_proppatch_op(
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diff changeset
1386 pgdav,
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diff changeset
1387 request,
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diff changeset
1388 response,
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diff changeset
1389 out_remove,
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1390 PG_DAV_CREATIONDATE, // creationdate can't be removed
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1391 pg_dav_remove_property,
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1392 resource_id_str);
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1393 if(rm_res.error) {
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1394 return 1;
377
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1395 }
318
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1396
377
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diff changeset
1397 // if extensions are in use and pg_proppatch_op found any
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diff changeset
1398 // properties, that should be stored in extension tables
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diff changeset
1399 // we do the update/insert now
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diff changeset
1400 if(proppatch.extensions_used) {
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diff changeset
1401 ret = pg_dav_update_extension_tables(request);
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1402 }
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1403
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1404
318
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1405 return ret;
299
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1406 }
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parents:
diff changeset
1407
f927ef81a12b add empty pg webdav funcs
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diff changeset
1408 int pg_dav_proppatch_finish(
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1409 WebdavProppatchRequest *request,
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parents:
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1410 WebdavResource *response,
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parents:
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1411 VFSFile *file,
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parents:
diff changeset
1412 WSBool commit)
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1413 {
318
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1414 PgWebdavBackend *pgdav = request->dav->instance;
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1415 int ret = 0;
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1416 if(!commit) {
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1417 log_ereport(LOG_VERBOSE, "proppatch: rollback");
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1418 PGresult *result = PQexec(pgdav->connection, "rollback to savepoint proppatch;");
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1419 if(PQresultStatus(result) != PGRES_COMMAND_OK) {
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1420 log_ereport(LOG_FAILURE, "pg_dav_proppatch_finish: rollback failed: %s", PQerrorMessage(pgdav->connection));
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1421 ret = 1;
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1422 }
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1423 PQclear(result);
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1424 }
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1425 return ret;
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1426 }

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