src/server/plugins/postgresql/vfs.c

Sun, 14 Aug 2022 12:43:14 +0200

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Sun, 14 Aug 2022 12:43:14 +0200
branch
webdav
changeset 375
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parent 374
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child 379
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permissions
-rw-r--r--

build pg propfind query from components

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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 "vfs.h"
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30 #include "config.h"
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31
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32 #include <inttypes.h>
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33
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34 #include "../../util/util.h"
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35
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36 static VFS pg_vfs_class = {
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37 pg_vfs_open,
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38 pg_vfs_stat,
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39 pg_vfs_fstat,
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40 pg_vfs_opendir,
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41 pg_vfs_fdopendir,
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42 pg_vfs_mkdir,
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43 pg_vfs_unlink,
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44 pg_vfs_rmdir
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45 };
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46
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47 static VFS_IO pg_vfs_io_class = {
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48 pg_vfs_io_read,
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49 pg_vfs_io_write,
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50 pg_vfs_io_pread,
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51 pg_vfs_io_pwrite,
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52 pg_vfs_io_seek,
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53 pg_vfs_io_close,
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54 NULL, // no pg aio implementation yet
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55 NULL,
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56 pg_vfs_io_getetag
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57 };
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58
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59 static VFS_DIRIO pg_vfs_dirio_class = {
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60 pg_vfs_dirio_readdir,
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61 pg_vfs_dirio_close
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62 };
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63
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64
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65 /*
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66 * SQL Queries
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67 */
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68
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69 // Resolves a path into resource_id and parent_id
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70 // params: $1: path string
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71 static const char *sql_resolve_path =
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72 "with recursive resolvepath as (\n\
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73 select\n\
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74 resource_id,\n\
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75 parent_id,\n\
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76 '' as fullpath,\n\
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77 resoid,\n\
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78 iscollection,\n\
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79 lastmodified,\n\
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80 creationdate,\n\
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81 contentlength,\n\
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82 etag,\n\
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83 regexp_split_to_array($1, '/') as pathelm,\n\
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84 1 as pathdepth\n\
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85 from Resource\n\
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86 where resource_id = $2\n\
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87 union\n\
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88 select\n\
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89 r.resource_id,\n\
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90 r.parent_id,\n\
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91 p.fullpath || '/' || r.nodename,\n\
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92 r.resoid,\n\
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93 r.iscollection,\n\
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94 r.lastmodified,\n\
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95 r.creationdate,\n\
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96 r.contentlength,\n\
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97 r.etag,\n\
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98 p.pathelm,\n\
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99 p.pathdepth + 1\n\
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100 from Resource r\n\
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101 inner join resolvepath p on r.parent_id = p.resource_id\n\
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102 where p.pathelm[p.pathdepth+1] = r.nodename\n\
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103 )\n\
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104 select resource_id, parent_id, fullpath, resoid, iscollection, lastmodified, creationdate, contentlength, etag from resolvepath\n\
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105 where fullpath = $1 ;";
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106
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107 // Same as sql_resolve_path, but it returns the root collection
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108 // params: $1: path string (should be '/')
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109 static const char *sql_get_root = "select resource_id, parent_id, $1 as fullpath, resoid, true as iscollection, lastmodified, creationdate, contentlength, etag from Resource where resource_id = $2;";
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110
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111 // Get all children of a specific collection
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112 // params: $1: parent resource_id
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113 static const char *sql_get_children = "select resource_id, nodename, iscollection, lastmodified, creationdate, contentlength, etag from Resource where parent_id = $1;";
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114
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115 // Get resource
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116 // params: $1: resource_id
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117 static const char *sql_get_resource = "select resource_id, nodename, iscollection, lastmodified, creationdate, contentlength, etag from Resource where resource_id = $1;";
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118
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119 // Create resource
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120 // params: $1: parent_id
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121 // $2: node name
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122 static const char *sql_create_resource =
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123 "insert into Resource (parent_id, nodename, iscollection, lastmodified, creationdate, contentlength, resoid) values\n\
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124 ($1, $2, false, now(), now(), 0, lo_creat(-1))\n\
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125 returning resource_id, resoid, lastmodified, creationdate;";
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126
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127 // Create collection
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128 // params: $1: parent_id
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129 // $2: node name
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130 static const char *sql_create_collection =
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131 "insert into Resource (parent_id, nodename, iscollection, lastmodified, creationdate, contentlength) values\n\
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132 ($1, $2, true, now(), now(), 0)\n\
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133 returning resource_id, lastmodified, creationdate;";
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134
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135 // Update resource metadata
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136 // params: $1: resource_id
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137 // $2: contentlength
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138 static const char *sql_update_resource = "update Resource set contentlength = $2, lastmodified = now(), etag = gen_random_uuid() where resource_id = $1;";
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139
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140 // Delete a resource
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141 // params: $1: resource_id
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142 static const char *sql_delete_res = "delete from Resource where parent_id is not null and resource_id = $1;";
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143
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144
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145 void* pg_vfs_init(ServerConfiguration *cfg, pool_handle_t *pool, WSConfigNode *config) {
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146 return pg_init_repo(cfg, pool, config);
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147 }
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148
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149 VFS* pg_vfs_create(Session *sn, Request *rq, pblock *pb, void *initData) {
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150 PgRepository *repo = initData;
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151
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152 char *resource_pool;
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153 if(repo) {
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154 resource_pool = repo->resourcepool.ptr;
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155 } else {
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156 // resourcepool is required
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157 resource_pool = pblock_findval("resourcepool", pb);
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158 if(!resource_pool) {
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159 log_ereport(LOG_MISCONFIG, "pg_vfs_create: missing resourcepool parameter");
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160 return NULL;
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161 }
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162 }
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163
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164 // get the resource first (most likely to fail due to misconfig)
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165 ResourceData *resdata = resourcepool_lookup(sn, rq, resource_pool, 0);
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166 if(!resdata) {
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167 log_ereport(LOG_MISCONFIG, "postgresql vfs: resource pool %s not found", resource_pool);
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168 return NULL;
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169 }
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170 // resdata will be freed automatically when the request is finished
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171
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172 return pg_vfs_create_from_resourcedata(sn, rq, repo, resdata);
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173 }
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174
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175 VFS* pg_vfs_create_from_resourcedata(Session *sn, Request *rq, PgRepository *repo, ResourceData *resdata) {
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176 // Create a new VFS object and a separate instance object
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177 // VFS contains fptrs that can be copied from pg_vfs_class
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178 // instance contains request specific data (PGconn)
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179 VFS *vfs = pool_malloc(sn->pool, sizeof(VFS));
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180 if(!vfs) {
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181 return NULL;
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182 }
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183
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184 PgVFS *vfs_priv = pool_malloc(sn->pool, sizeof(PgVFS));
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185 if(!vfs_priv) {
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186 pool_free(sn->pool, vfs);
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187 return NULL;
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188 }
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189 vfs_priv->connection = resdata->data;
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190 vfs_priv->pg_resource = resdata;
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191 vfs_priv->root_resource_id = repo->root_resource_id;
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192 snprintf(vfs_priv->root_resource_id_str, 32, "%" PRId64, repo->root_resource_id);
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193
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194 memcpy(vfs, &pg_vfs_class, sizeof(VFS));
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195 vfs->flags = 0;
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196 vfs->instance = vfs_priv;
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197
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198 return vfs;
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199 }
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200
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201
281
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202 int pg_resolve_path(
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203 PGconn *connection,
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204 const char *path,
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205 const char *root_id,
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206 int64_t *parent_id,
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207 int64_t *resource_id,
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208 Oid *oid,
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209 const char **resource_name,
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210 WSBool *iscollection,
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211 struct stat *s,
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212 char *etag,
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213 int *res_errno)
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214 {
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215 // basic path validation
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216 if(!path) return 1;
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217 size_t pathlen = strlen(path);
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218 if(pathlen == 0) return 1;
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219 if(path[0] != '/') {
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220 return 1;
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221 }
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222
281
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223 char *pathf = NULL;
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224 if(pathlen > 1 && path[pathlen-1] == '/') {
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225 pathf = malloc(pathlen);
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226 memcpy(pathf, path, pathlen);
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227 pathf[pathlen-1] = 0; // remove trailing '/'
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228 path = pathf;
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229 }
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230
278
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231 // get last node of path
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232 *resource_name = util_resource_name(path);
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233
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234 const char *sql = pathlen == 1 ? sql_get_root : sql_resolve_path;
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235 const char* params[2] = { path, root_id };
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236 PGresult *result = PQexecParams(
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237 connection,
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238 sql,
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239 2, // number of parameters
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240 NULL,
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241 params, // parameter value
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242 NULL,
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243 NULL,
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244 0); // 0: result in text format
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245
281
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246 if(pathf) {
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247 free(pathf);
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248 }
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249
278
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250 if(!result) return 1;
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251
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252 int ret = 1;
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253 //int nfields = PQnfields(result);
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254 int nrows = PQntuples(result);
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255 if(nrows == 1) {
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256 char *resource_id_str = PQgetvalue(result, 0, 0);
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257 char *parent_id_str = PQgetvalue(result, 0, 1);
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258 char *iscol = PQgetvalue(result, 0, 4);
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259 char *lastmodified = PQgetvalue(result, 0, 5);
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260 char *creationdate = PQgetvalue(result, 0, 6);
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261 char *contentlength = PQgetvalue(result, 0, 7);
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262 char *res_etag = PQgetvalue(result, 0, 8);
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263 if(resource_id_str && parent_id_str) {
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264 if(util_strtoint(resource_id_str, resource_id)) {
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265 ret = 0; // success
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266 }
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267 // optionally get parent_id
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268 util_strtoint(parent_id_str, parent_id);
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269 }
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270
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271 if(oid) {
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272 char *resoid = PQgetvalue(result, 0, 3);
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273 int64_t roid;
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274 if(resoid && util_strtoint(resoid, &roid)) {
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275 *oid = roid;
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276 }
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277 }
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278
281
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279 if(iscollection && iscol) {
278
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280 *iscollection = iscol[0] == 't' ? TRUE : FALSE;
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281 }
281
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282
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283 if(s) {
282
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284 pg_set_stat(s, iscol, lastmodified, creationdate, contentlength);
281
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285 }
346
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286
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287 if(etag) {
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288 size_t etag_len = strlen(res_etag);
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289 if(etag_len < PG_ETAG_MAXLEN)
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290 memcpy(etag, res_etag, etag_len+1);
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291 }
305
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292 } else if(res_errno) {
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293 *res_errno = ENOENT;
278
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294 }
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295
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296 PQclear(result);
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297
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298 return ret;
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299 }
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300
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301
282
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302 void pg_set_stat(
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303 struct stat *s,
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304 const char *iscollection,
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305 const char *lastmodified,
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306 const char *creationdate,
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307 const char *contentlength)
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308 {
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309 memset(s, 0, sizeof(struct stat));
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310 if(iscollection) {
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311 WSBool iscol = iscollection[0] == 't' ? TRUE : FALSE;
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312 if(iscol) {
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313 s->st_mode |= 0x4000;
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314 }
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315 }
304
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316 s->st_mtime = pg_convert_timestamp(lastmodified);
283
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317
282
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318 if(contentlength) {
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319 int64_t len;
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320 if(util_strtoint(contentlength, &len)) {
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321 s->st_size = len;
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322 }
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323 }
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324 }
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325
290
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326 static int pg_create_res(
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327 PgVFS *pg,
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328 const char *resparentid_str,
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329 const char *nodename,
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330 int64_t *new_resource_id,
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331 Oid *oid,
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332 const char **resource_name,
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333 struct stat *s)
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334 {
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335 const char* params[2] = { resparentid_str, nodename };
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336 PGresult *result = PQexecParams(
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337 pg->connection,
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338 sql_create_resource,
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339 2, // number of parameters
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340 NULL,
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341 params, // parameter value
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342 NULL,
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343 NULL,
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344 0); // 0: result in text format
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345
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346 if(!result) return 1;
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347
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348 int ret = 1;
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349 if(PQntuples(result) == 1) {
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350 // sql insert succesful
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351 ret = 0;
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352
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353 char *id_str = PQgetvalue(result, 0, 0);
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354 char *oid_str = PQgetvalue(result, 0, 1);
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355 char *lastmodified = PQgetvalue(result, 0, 2);
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356 char *creationdate = PQgetvalue(result, 0, 3);
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357
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358 if(new_resource_id) {
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359 if(!id_str || !util_strtoint(id_str, new_resource_id)) {
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360 ret = 1; // shouldn't happen
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361 log_ereport(LOG_FAILURE, "Postgresql VFS: sql_create_resource: Could not convert resource_id to int");
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362 }
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363 }
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364 if(oid) {
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365 int64_t i;
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366 if(!oid_str || !util_strtoint(oid_str, &i)) {
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367 ret = 1; // shouldn't happen
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368 log_ereport(LOG_FAILURE, "Postgresql VFS: sql_create_resource: Could not convert oid to int");
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369 } else {
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370 *oid = i;
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371 }
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372 }
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373 if(resource_name) {
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374 *resource_name = nodename;
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375 }
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376 if(s) {
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377 pg_set_stat(s, 0, lastmodified, creationdate, NULL);
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378 }
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379 }
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380
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381 PQclear(result);
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382
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383 return ret;
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384 }
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385
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386
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387 static int pg_create_col(
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388 PgVFS *pg,
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389 const char *resparentid_str,
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390 const char *nodename,
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391 int64_t *new_resource_id,
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392 const char **resource_name,
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393 struct stat *s)
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394 {
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395 const char* params[2] = { resparentid_str, nodename };
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396 PGresult *result = PQexecParams(
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397 pg->connection,
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398 sql_create_collection,
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399 2, // number of parameters
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400 NULL,
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diff changeset
401 params, // parameter value
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402 NULL,
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403 NULL,
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404 0); // 0: result in text format
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405
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406 if(!result) return 1;
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407
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408 int ret = 1;
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409 if(PQntuples(result) == 1) {
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410 // sql insert succesful
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411 ret = 0;
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412
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413 char *id_str = PQgetvalue(result, 0, 0);
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414 char *lastmodified = PQgetvalue(result, 0, 1);
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415 char *creationdate = PQgetvalue(result, 0, 2);
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416
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417 if(new_resource_id) {
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418 if(!id_str || !util_strtoint(id_str, new_resource_id)) {
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419 ret = 1; // shouldn't happen
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420 log_ereport(LOG_FAILURE, "Postgresql VFS: sql_create_collection: Could not convert resource_id to int");
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421 }
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422 }
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423 if(resource_name) {
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424 *resource_name = nodename;
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425 }
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426 if(s) {
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427 pg_set_stat(s, 0, lastmodified, creationdate, NULL);
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428 }
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429 }
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430
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431 PQclear(result);
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432
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433 return ret;
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434 }
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435
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436 int pg_create_file(
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437 VFSContext *ctx,
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438 PgVFS *pg,
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439 const char *path,
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440 int64_t *new_resource_id,
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441 int64_t *res_parent_id,
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442 Oid *oid,
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443 const char **resource_name,
290
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444 struct stat *s,
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445 WSBool collection)
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446 {
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447 char *parent_path = util_parent_path(path);
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448 if(!parent_path) return 1;
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449
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450 size_t pathlen = strlen(path);
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451 char *pathf = NULL;
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452 if(pathlen > 1 && path[pathlen-1] == '/') {
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453 pathf = malloc(pathlen);
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454 memcpy(pathf, path, pathlen);
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455 pathf[pathlen-1] = 0; // remove trailing '/'
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456 path = pathf;
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457 }
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458
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459 const char *nodename = util_resource_name(path);
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460
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461 // resolve the parent path
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462 // if the parent path can't be resolved, we are done
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463 const char *resname;
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464 int64_t resource_id, parent_id;
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465 resource_id = -1;
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466 parent_id = -1;
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467 WSBool iscollection;
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468 Oid unused_oid = 0;
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469
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470 int err = pg_resolve_path(
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471 pg->connection,
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472 parent_path,
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473 pg->root_resource_id_str,
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474 &parent_id,
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475 &resource_id,
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476 &unused_oid,
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477 &resname,
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478 &iscollection,
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479 NULL,
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480 NULL,
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481 &ctx->vfs_errno);
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482 FREE(parent_path);
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483 if(err) {
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484 ctx->vfs_errno = ENOENT;
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485 if(pathf) free(pathf);
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486 return 1;
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487 }
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488
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489 // parent path exists, check if it is a collection
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490 if(!iscollection) {
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491 if(pathf) free(pathf);
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492 return 1;
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493 }
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494
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495 // create new Resource
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496 char resid_str[32];
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497 snprintf(resid_str, 32, "%" PRId64, resource_id); // convert parent resource_id to string
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498
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499 int ret;
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500 if(collection) {
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501 ret = pg_create_col(pg, resid_str, nodename, new_resource_id, resource_name, s);
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502 } else {
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503 ret = pg_create_res(pg, resid_str, nodename, new_resource_id, oid, resource_name, s);
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504 }
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505
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506 if(pathf) free(pathf);
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507
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508 if(res_parent_id) {
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509 // resource_id is still the id of the parent from previous pg_resolve_path call
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510 *res_parent_id = resource_id;
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511 }
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512
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513 return ret;
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514 }
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515
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516 int pg_remove_res(
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517 VFSContext *ctx,
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518 PgVFS *pg,
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519 int64_t resource_id,
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520 Oid oid)
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521 {
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522 // create transaction savepoint
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523 PGresult *result = PQexec(pg->connection, "savepoint del_res;");
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524 ExecStatusType execStatus = PQresultStatus(result);
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525 PQclear(result);
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526 if(execStatus != PGRES_COMMAND_OK) {
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527 return 1;
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528 }
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529
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530 if(oid > 0) {
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531 if(lo_unlink(pg->connection, oid) != 1) {
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532 // restore savepoint
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533 result = PQexec(pg->connection, "rollback to savepoint del_res;");
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534 PQclear(result);
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535 return 1; // error
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536 }
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537 }
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538
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539 char resid_str[32];
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540 snprintf(resid_str, 32, "%" PRId64, resource_id);
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541
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542 const char* params[1] = { resid_str };
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543 result = PQexecParams(
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544 pg->connection,
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545 sql_delete_res,
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546 1, // number of parameters
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547 NULL,
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548 params, // parameter value
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549 NULL,
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550 NULL,
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551 0); // 0: result in text format
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552
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553 execStatus = PQresultStatus(result);
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554 PQclear(result);
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555 int ret = 0;
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556
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557 if(execStatus != PGRES_COMMAND_OK) {
297
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558 ret = 1;
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559 // restore savepoint
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560 result = PQexec(pg->connection, "rollback to savepoint del_res;");
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561 PQclear(result);
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562 } else {
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563 // we don't need the savepoint anymore
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564 result = PQexec(pg->connection, "release savepoint del_res;");
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565 PQclear(result);
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566 }
298
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567
294
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568 return ret;
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569 }
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diff changeset
570
292
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diff changeset
571 int pg_update_resource(PgVFS *pg, int64_t resource_id, int64_t contentlength) {
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572 char resid_str[32];
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573 char ctlen_str[32];
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diff changeset
574 snprintf(resid_str, 32, "%" PRId64, resource_id);
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575 snprintf(ctlen_str, 32, "%" PRId64, contentlength);
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576
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diff changeset
577 const char* params[2] = { resid_str, ctlen_str };
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578 PGresult *result = PQexecParams(
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diff changeset
579 pg->connection,
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580 sql_update_resource,
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581 2, // number of parameters
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582 NULL,
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583 params, // parameter value
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584 NULL,
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diff changeset
585 NULL,
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diff changeset
586 0); // 0: result in text format
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587
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588 int ret = PQresultStatus(result) == PGRES_COMMAND_OK ? 0 : 1;
297
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diff changeset
589 PQclear(result);
292
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590 return ret;
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591 }
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592
275
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593 /* -------------------------- VFS functions -------------------------- */
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parents:
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594
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595 SYS_FILE pg_vfs_open(VFSContext *ctx, const char *path, int oflags) {
283
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596 VFS *vfs = ctx->vfs;
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597 PgVFS *pg = vfs->instance;
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598
278
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599 const char *resname;
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600 int64_t resource_id, parent_id;
279
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601 resource_id = -1;
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602 parent_id = -1;
278
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603 WSBool iscollection;
281
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604 struct stat s;
346
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605 char etag[PG_ETAG_MAXLEN];
283
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606 Oid oid = 0;
374
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607 if(pg_resolve_path(pg->connection, path, pg->root_resource_id_str, &parent_id, &resource_id, &oid, &resname, &iscollection, &s, etag, &ctx->vfs_errno)) {
285
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608 if((oflags & O_CREAT) == O_CREAT) {
290
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609 if(pg_create_file(ctx, pg, path, &resource_id, &parent_id, &oid, &resname, &s, FALSE)) {
285
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610 return NULL;
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611 }
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612 iscollection = 0;
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613 } else {
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614 return NULL;
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615 }
278
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616 }
275
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617
278
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diff changeset
618 VFSFile *file = pool_malloc(ctx->pool, sizeof(VFSFile));
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619 if(!file) {
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620 return NULL;
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621 }
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622 PgFile *pgfile = pool_malloc(ctx->pool, sizeof(PgFile));
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623 if(!pgfile) {
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624 pool_free(ctx->pool, file);
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625 return NULL;
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626 }
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627
283
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628 int fd = -1;
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629 if(!iscollection) {
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630 if (PQstatus(pg->connection) != CONNECTION_OK) {
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631 fd = -2;
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632 }
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diff changeset
633
289
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634 int lo_mode = INV_READ;
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635 if((oflags & O_RDWR) == O_RDWR) {
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636 lo_mode = INV_READ|INV_WRITE;
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637 } else if((oflags & O_WRONLY) == O_WRONLY) {
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638 lo_mode = INV_WRITE;
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639 }
283
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640 fd = lo_open(pg->connection, oid, lo_mode);
341
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641 int err = 0;
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642 if(fd < 0) {
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643 err = 1;
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644 } else if((oflags & O_TRUNC) == O_TRUNC) {
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645 if(lo_truncate(pg->connection, fd, 0)) {
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diff changeset
646 lo_close(pg->connection, fd);
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diff changeset
647 err = 1;
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648 }
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649 }
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diff changeset
650
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diff changeset
651 if(err) {
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652 pool_free(ctx->pool, file);
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653 pool_free(ctx->pool, pgfile);
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654 return NULL;
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655 }
283
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656 }
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diff changeset
657
278
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658 pgfile->iscollection = iscollection;
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659 pgfile->resource_id = resource_id;
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660 pgfile->parent_id = parent_id;
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661 pgfile->oid = oid;
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662 pgfile->fd = fd;
292
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663 pgfile->oflags = oflags;
281
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664 pgfile->s = s;
346
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665 memcpy(pgfile->etag, etag, PG_ETAG_MAXLEN);
278
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666
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667 file->ctx = ctx;
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668 file->io = iscollection ? &pg_vfs_io_class : &pg_vfs_io_class;
278
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669 file->fd = -1;
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670 file->data = pgfile;
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671
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672 return file;
275
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673 }
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parents:
diff changeset
674
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parents:
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675 int pg_vfs_stat(VFSContext *ctx, const char *path, struct stat *buf) {
305
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676 VFS *vfs = ctx->vfs;
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diff changeset
677 PgVFS *pg = vfs->instance;
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678
281
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679 int64_t parent_id, resource_id;
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680 const char *resname;
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681 WSBool iscollection;
374
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diff changeset
682 return pg_resolve_path(pg->connection, path, pg->root_resource_id_str, &parent_id, &resource_id, NULL, &resname, &iscollection, buf, NULL, &ctx->vfs_errno);
275
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683 }
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parents:
diff changeset
684
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685 int pg_vfs_fstat(VFSContext *ctx, SYS_FILE fd, struct stat *buf) {
281
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686 PgFile *pgfile = fd->data;
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687 memcpy(buf, &pgfile->s, sizeof(struct stat));
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688 return 0;
275
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diff changeset
689 }
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parents:
diff changeset
690
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parents:
diff changeset
691 VFS_DIR pg_vfs_opendir(VFSContext *ctx, const char *path) {
279
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692 VFSFile *file = pg_vfs_open(ctx, path, O_RDONLY);
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diff changeset
693 if(!file) return NULL;
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694 return pg_vfs_fdopendir(ctx, file);
275
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695 }
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parents:
diff changeset
696
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697 VFS_DIR pg_vfs_fdopendir(VFSContext *ctx, SYS_FILE fd) {
279
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698 PgFile *pg = fd->data;
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diff changeset
699 if(!pg->iscollection) {
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700 ctx->vfs_errno = ENOTDIR;
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diff changeset
701 return NULL;
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diff changeset
702 }
275
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703
279
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diff changeset
704 VFSDir *dir = pool_malloc(ctx->pool, sizeof(VFSDir));
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parents: 278
diff changeset
705 if(!dir) {
79029fe26aae add basic postgresql vfs directory functions
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parents: 278
diff changeset
706 fd->io->close(fd);
79029fe26aae add basic postgresql vfs directory functions
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parents: 278
diff changeset
707 ctx->vfs_errno = ENOMEM;
79029fe26aae add basic postgresql vfs directory functions
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parents: 278
diff changeset
708 return NULL;
79029fe26aae add basic postgresql vfs directory functions
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parents: 278
diff changeset
709 }
79029fe26aae add basic postgresql vfs directory functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 278
diff changeset
710
79029fe26aae add basic postgresql vfs directory functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 278
diff changeset
711 PgDir *pgdir = pool_malloc(ctx->pool, sizeof(PgDir));
79029fe26aae add basic postgresql vfs directory functions
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parents: 278
diff changeset
712 if(!pgdir) {
79029fe26aae add basic postgresql vfs directory functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 278
diff changeset
713 fd->io->close(fd);
79029fe26aae add basic postgresql vfs directory functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 278
diff changeset
714 pool_free(ctx->pool, dir);
79029fe26aae add basic postgresql vfs directory functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 278
diff changeset
715 ctx->vfs_errno = ENOMEM;
79029fe26aae add basic postgresql vfs directory functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 278
diff changeset
716 return NULL;
79029fe26aae add basic postgresql vfs directory functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 278
diff changeset
717 }
79029fe26aae add basic postgresql vfs directory functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 278
diff changeset
718 memset(pgdir, 0, sizeof(PgDir));
79029fe26aae add basic postgresql vfs directory functions
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parents: 278
diff changeset
719 pgdir->file = fd;
79029fe26aae add basic postgresql vfs directory functions
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parents: 278
diff changeset
720
79029fe26aae add basic postgresql vfs directory functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 278
diff changeset
721 dir->ctx = ctx;
79029fe26aae add basic postgresql vfs directory functions
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parents: 278
diff changeset
722 dir->io = &pg_vfs_dirio_class;
79029fe26aae add basic postgresql vfs directory functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 278
diff changeset
723 dir->data = pgdir;
79029fe26aae add basic postgresql vfs directory functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 278
diff changeset
724 dir->fd = -1;
79029fe26aae add basic postgresql vfs directory functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 278
diff changeset
725
79029fe26aae add basic postgresql vfs directory functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 278
diff changeset
726 return dir;
275
535004faa1a5 add empty postgresql VFS functions
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parents:
diff changeset
727 }
535004faa1a5 add empty postgresql VFS functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
728
535004faa1a5 add empty postgresql VFS functions
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parents:
diff changeset
729 int pg_vfs_mkdir(VFSContext *ctx, const char *path) {
290
efc10acf539f implement pg vfs mkdir
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parents: 289
diff changeset
730 VFS *vfs = ctx->vfs;
efc10acf539f implement pg vfs mkdir
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parents: 289
diff changeset
731 PgVFS *pg = vfs->instance;
efc10acf539f implement pg vfs mkdir
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parents: 289
diff changeset
732
efc10acf539f implement pg vfs mkdir
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parents: 289
diff changeset
733 const char *resname;
efc10acf539f implement pg vfs mkdir
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parents: 289
diff changeset
734 int64_t resource_id, parent_id;
efc10acf539f implement pg vfs mkdir
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parents: 289
diff changeset
735 resource_id = -1;
efc10acf539f implement pg vfs mkdir
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parents: 289
diff changeset
736 parent_id = -1;
efc10acf539f implement pg vfs mkdir
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parents: 289
diff changeset
737 WSBool iscollection;
efc10acf539f implement pg vfs mkdir
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parents: 289
diff changeset
738 struct stat s;
efc10acf539f implement pg vfs mkdir
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parents: 289
diff changeset
739 Oid oid = 0;
374
77506ec632a4 use configured root node from PgRepository in pg vfs/webdav
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parents: 372
diff changeset
740 if(!pg_resolve_path(pg->connection, path, pg->root_resource_id_str, &parent_id, &resource_id, &oid, &resname, &iscollection, &s, NULL, &ctx->vfs_errno)) {
290
efc10acf539f implement pg vfs mkdir
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parents: 289
diff changeset
741 ctx->vfs_errno = EEXIST;
efc10acf539f implement pg vfs mkdir
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parents: 289
diff changeset
742 return 1;
efc10acf539f implement pg vfs mkdir
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parents: 289
diff changeset
743 }
efc10acf539f implement pg vfs mkdir
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parents: 289
diff changeset
744
efc10acf539f implement pg vfs mkdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 289
diff changeset
745 if(pg_create_file(ctx, pg, path, NULL, NULL, NULL, NULL, NULL, TRUE)) {
efc10acf539f implement pg vfs mkdir
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parents: 289
diff changeset
746 return 1;
efc10acf539f implement pg vfs mkdir
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parents: 289
diff changeset
747 }
efc10acf539f implement pg vfs mkdir
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parents: 289
diff changeset
748
efc10acf539f implement pg vfs mkdir
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parents: 289
diff changeset
749 return 0;
275
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parents:
diff changeset
750 }
535004faa1a5 add empty postgresql VFS functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
751
535004faa1a5 add empty postgresql VFS functions
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parents:
diff changeset
752 int pg_vfs_unlink(VFSContext *ctx, const char *path) {
294
277a5896a2ec implement pg unlink
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parents: 292
diff changeset
753 VFS *vfs = ctx->vfs;
277a5896a2ec implement pg unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 292
diff changeset
754 PgVFS *pg = vfs->instance;
277a5896a2ec implement pg unlink
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parents: 292
diff changeset
755
277a5896a2ec implement pg unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 292
diff changeset
756 const char *resname;
277a5896a2ec implement pg unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 292
diff changeset
757 int64_t resource_id, parent_id;
277a5896a2ec implement pg unlink
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parents: 292
diff changeset
758 resource_id = -1;
277a5896a2ec implement pg unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 292
diff changeset
759 parent_id = -1;
277a5896a2ec implement pg unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 292
diff changeset
760 WSBool iscollection;
277a5896a2ec implement pg unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 292
diff changeset
761 Oid oid = 0;
374
77506ec632a4 use configured root node from PgRepository in pg vfs/webdav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 372
diff changeset
762 if(pg_resolve_path(pg->connection, path, pg->root_resource_id_str, &parent_id, &resource_id, &oid, &resname, &iscollection, NULL, NULL, &ctx->vfs_errno)) {
294
277a5896a2ec implement pg unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 292
diff changeset
763 return 1;
277a5896a2ec implement pg unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 292
diff changeset
764 }
277a5896a2ec implement pg unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 292
diff changeset
765
277a5896a2ec implement pg unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 292
diff changeset
766 if(iscollection) {
277a5896a2ec implement pg unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 292
diff changeset
767 ctx->vfs_errno = EISDIR;
277a5896a2ec implement pg unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 292
diff changeset
768 return 1;
277a5896a2ec implement pg unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 292
diff changeset
769 }
277a5896a2ec implement pg unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 292
diff changeset
770
296
78e92337fa4e implement pg rmdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 295
diff changeset
771 return pg_remove_res(ctx, pg, resource_id, oid);
275
535004faa1a5 add empty postgresql VFS functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
772 }
535004faa1a5 add empty postgresql VFS functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
773
295
73a1243fce15 add pg mkdir tests
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 294
diff changeset
774 int pg_vfs_rmdir(VFSContext *ctx, const char *path) {
296
78e92337fa4e implement pg rmdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 295
diff changeset
775 VFS *vfs = ctx->vfs;
78e92337fa4e implement pg rmdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 295
diff changeset
776 PgVFS *pg = vfs->instance;
295
73a1243fce15 add pg mkdir tests
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 294
diff changeset
777
296
78e92337fa4e implement pg rmdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 295
diff changeset
778 const char *resname;
78e92337fa4e implement pg rmdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 295
diff changeset
779 int64_t resource_id, parent_id;
78e92337fa4e implement pg rmdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 295
diff changeset
780 resource_id = -1;
78e92337fa4e implement pg rmdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 295
diff changeset
781 parent_id = -1;
78e92337fa4e implement pg rmdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 295
diff changeset
782 WSBool iscollection;
374
77506ec632a4 use configured root node from PgRepository in pg vfs/webdav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 372
diff changeset
783 if(pg_resolve_path(pg->connection, path, pg->root_resource_id_str, &parent_id, &resource_id, NULL, &resname, &iscollection, NULL, NULL, &ctx->vfs_errno)) {
296
78e92337fa4e implement pg rmdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 295
diff changeset
784 return 1;
78e92337fa4e implement pg rmdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 295
diff changeset
785 }
78e92337fa4e implement pg rmdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 295
diff changeset
786
78e92337fa4e implement pg rmdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 295
diff changeset
787 if(!iscollection) {
78e92337fa4e implement pg rmdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 295
diff changeset
788 ctx->vfs_errno = ENOTDIR;
78e92337fa4e implement pg rmdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 295
diff changeset
789 return 1;
78e92337fa4e implement pg rmdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 295
diff changeset
790 }
78e92337fa4e implement pg rmdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 295
diff changeset
791
78e92337fa4e implement pg rmdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 295
diff changeset
792 return pg_remove_res(ctx, pg, resource_id, 0);
275
535004faa1a5 add empty postgresql VFS functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
793 }
535004faa1a5 add empty postgresql VFS functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
794
535004faa1a5 add empty postgresql VFS functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
795
535004faa1a5 add empty postgresql VFS functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
796 /* -------------------------- VFS_IO functions -------------------------- */
535004faa1a5 add empty postgresql VFS functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
797
535004faa1a5 add empty postgresql VFS functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
798 ssize_t pg_vfs_io_read(SYS_FILE fd, void *buf, size_t nbyte) {
283
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parents: 282
diff changeset
799 PgVFS *pgvfs = fd->ctx->vfs->instance;
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 282
diff changeset
800 PgFile *pg = fd->data;
25e5b771677d minimal working send_file with postgresql vfs
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 282
diff changeset
801 return lo_read(pgvfs->connection, pg->fd, buf, nbyte);
275
535004faa1a5 add empty postgresql VFS functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
802 }
535004faa1a5 add empty postgresql VFS functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
803
535004faa1a5 add empty postgresql VFS functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
804 ssize_t pg_vfs_io_write(SYS_FILE fd, const void *buf, size_t nbyte) {
283
25e5b771677d minimal working send_file with postgresql vfs
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 282
diff changeset
805 PgVFS *pgvfs = fd->ctx->vfs->instance;
284
eab579b8c80d add missing postgresql vfs io functions
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parents: 283
diff changeset
806 PgFile *pg = fd->data;
eab579b8c80d add missing postgresql vfs io functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 283
diff changeset
807 return lo_write(pgvfs->connection, pg->fd, buf, nbyte);
275
535004faa1a5 add empty postgresql VFS functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
808 }
535004faa1a5 add empty postgresql VFS functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
809
535004faa1a5 add empty postgresql VFS functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
810 ssize_t pg_vfs_io_pread(SYS_FILE fd, void *buf, size_t nbyte, off_t offset) {
283
25e5b771677d minimal working send_file with postgresql vfs
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 282
diff changeset
811 PgVFS *pgvfs = fd->ctx->vfs->instance;
284
eab579b8c80d add missing postgresql vfs io functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 283
diff changeset
812 PgFile *pg = fd->data;
eab579b8c80d add missing postgresql vfs io functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 283
diff changeset
813 if(lo_lseek64(pgvfs->connection, pg->fd, offset, SEEK_SET) == -1) {
eab579b8c80d add missing postgresql vfs io functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 283
diff changeset
814 return -1;
eab579b8c80d add missing postgresql vfs io functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 283
diff changeset
815 }
eab579b8c80d add missing postgresql vfs io functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 283
diff changeset
816 return lo_read(pgvfs->connection, pg->fd, buf, nbyte);
275
535004faa1a5 add empty postgresql VFS functions
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parents:
diff changeset
817 }
535004faa1a5 add empty postgresql VFS functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
818
535004faa1a5 add empty postgresql VFS functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
819 ssize_t pg_vfs_io_pwrite(SYS_FILE fd, const void *buf, size_t nbyte, off_t offset) {
283
25e5b771677d minimal working send_file with postgresql vfs
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parents: 282
diff changeset
820 PgVFS *pgvfs = fd->ctx->vfs->instance;
284
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parents: 283
diff changeset
821 PgFile *pg = fd->data;
eab579b8c80d add missing postgresql vfs io functions
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parents: 283
diff changeset
822 if(lo_lseek64(pgvfs->connection, pg->fd, offset, SEEK_SET) == -1) {
eab579b8c80d add missing postgresql vfs io functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 283
diff changeset
823 return -1;
eab579b8c80d add missing postgresql vfs io functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 283
diff changeset
824 }
eab579b8c80d add missing postgresql vfs io functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 283
diff changeset
825 return lo_write(pgvfs->connection, pg->fd, buf, nbyte);
275
535004faa1a5 add empty postgresql VFS functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
826 }
535004faa1a5 add empty postgresql VFS functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
827
535004faa1a5 add empty postgresql VFS functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
828 off_t pg_vfs_io_seek(SYS_FILE fd, off_t offset, int whence) {
283
25e5b771677d minimal working send_file with postgresql vfs
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parents: 282
diff changeset
829 PgVFS *pgvfs = fd->ctx->vfs->instance;
284
eab579b8c80d add missing postgresql vfs io functions
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parents: 283
diff changeset
830 PgFile *pg = fd->data;
eab579b8c80d add missing postgresql vfs io functions
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parents: 283
diff changeset
831 return lo_lseek64(pgvfs->connection, pg->fd, offset, whence);
275
535004faa1a5 add empty postgresql VFS functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
832 }
535004faa1a5 add empty postgresql VFS functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
833
291
0f46b645aea4 add pg_vfs_io_tell
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parents: 290
diff changeset
834 off_t pg_vfs_io_tell(SYS_FILE fd) {
0f46b645aea4 add pg_vfs_io_tell
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parents: 290
diff changeset
835 PgVFS *pgvfs = fd->ctx->vfs->instance;
0f46b645aea4 add pg_vfs_io_tell
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parents: 290
diff changeset
836 PgFile *pg = fd->data;
0f46b645aea4 add pg_vfs_io_tell
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parents: 290
diff changeset
837 return lo_tell64(pgvfs->connection, pg->fd);
0f46b645aea4 add pg_vfs_io_tell
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 290
diff changeset
838 }
0f46b645aea4 add pg_vfs_io_tell
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 290
diff changeset
839
275
535004faa1a5 add empty postgresql VFS functions
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parents:
diff changeset
840 void pg_vfs_io_close(SYS_FILE fd) {
282
cfb588e27198 add support for getstat parameter in pg readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 281
diff changeset
841 pool_handle_t *pool = fd->ctx->pool;
292
7c31bcd5b4be update pg resource metadata on close
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 291
diff changeset
842 PgVFS *pgvfs = fd->ctx->vfs->instance;
282
cfb588e27198 add support for getstat parameter in pg readdir
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parents: 281
diff changeset
843 PgFile *pg = fd->data;
275
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parents:
diff changeset
844
283
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diff changeset
845 if(pg->fd >= 0) {
292
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846 if((pg->oflags & (O_WRONLY|O_RDWR)) > 0) {
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diff changeset
847 // file modified, update length and lastmodified
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diff changeset
848 off_t len = pg_vfs_io_seek(fd, 0, SEEK_END);
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diff changeset
849 if(len < 0) len = 0;
7c31bcd5b4be update pg resource metadata on close
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diff changeset
850
7c31bcd5b4be update pg resource metadata on close
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diff changeset
851 pg_update_resource(pgvfs, pg->resource_id, len);
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diff changeset
852 }
7c31bcd5b4be update pg resource metadata on close
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diff changeset
853
283
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diff changeset
854 PgVFS *pgvfs = fd->ctx->vfs->instance;
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diff changeset
855 lo_close(pgvfs->connection, pg->fd);
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diff changeset
856 }
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diff changeset
857
282
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diff changeset
858 pool_free(pool, pg);
cfb588e27198 add support for getstat parameter in pg readdir
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diff changeset
859 pool_free(pool, fd);
275
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parents:
diff changeset
860 }
535004faa1a5 add empty postgresql VFS functions
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parents:
diff changeset
861
345
5832e10fc59a add optional getetag function to VFS API
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diff changeset
862 const char *pg_vfs_io_getetag(SYS_FILE fd) {
346
784b24381bed extend postgresql vfs to store an etag in the file
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diff changeset
863 PgFile *pg = fd->data;
784b24381bed extend postgresql vfs to store an etag in the file
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diff changeset
864 return pg->etag;
345
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diff changeset
865 }
275
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parents:
diff changeset
866
535004faa1a5 add empty postgresql VFS functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
867 /* -------------------------- VFS_DIRIO functions -------------------------- */
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parents:
diff changeset
868
279
79029fe26aae add basic postgresql vfs directory functions
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diff changeset
869 static int load_dir(VFSDir *dir, PgDir *pg) {
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diff changeset
870 VFS *vfs = dir->ctx->vfs;
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diff changeset
871 PgVFS *pgvfs = vfs->instance;
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diff changeset
872 PgFile *pgfd = pg->file->data;
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diff changeset
873 PgDir *pgdir = dir->data;
79029fe26aae add basic postgresql vfs directory functions
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diff changeset
874
79029fe26aae add basic postgresql vfs directory functions
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diff changeset
875 char resid_param[32];
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diff changeset
876 snprintf(resid_param, 32, "%" PRId64, pgfd->resource_id);
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diff changeset
877
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diff changeset
878 const char *param = resid_param;
79029fe26aae add basic postgresql vfs directory functions
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diff changeset
879
79029fe26aae add basic postgresql vfs directory functions
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diff changeset
880 PGresult *result = PQexecParams(
79029fe26aae add basic postgresql vfs directory functions
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diff changeset
881 pgvfs->connection,
79029fe26aae add basic postgresql vfs directory functions
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diff changeset
882 sql_get_children,
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diff changeset
883 1, // number of parameters
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diff changeset
884 NULL,
281
e9dc53661df4 add pg vfs stat/fstat implementation
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diff changeset
885 &param, // param: parent resource_id
279
79029fe26aae add basic postgresql vfs directory functions
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diff changeset
886 NULL,
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diff changeset
887 NULL,
79029fe26aae add basic postgresql vfs directory functions
Olaf Wintermann <olaf.wintermann@gmail.com>
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diff changeset
888 0); // 0: result in text format
79029fe26aae add basic postgresql vfs directory functions
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diff changeset
889 if(!result) return 1;
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diff changeset
890
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diff changeset
891 pgdir->result = result;
79029fe26aae add basic postgresql vfs directory functions
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diff changeset
892 pgdir->nrows = PQntuples(result);
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diff changeset
893 return 0;
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Olaf Wintermann <olaf.wintermann@gmail.com>
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diff changeset
894 }
79029fe26aae add basic postgresql vfs directory functions
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diff changeset
895
275
535004faa1a5 add empty postgresql VFS functions
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parents:
diff changeset
896 int pg_vfs_dirio_readdir(VFS_DIR dir, VFS_ENTRY *entry, int getstat) {
279
79029fe26aae add basic postgresql vfs directory functions
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diff changeset
897 PgDir *pg = dir->data;
79029fe26aae add basic postgresql vfs directory functions
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diff changeset
898 if(!pg->result) {
79029fe26aae add basic postgresql vfs directory functions
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parents: 278
diff changeset
899 if(load_dir(dir, pg)) {
79029fe26aae add basic postgresql vfs directory functions
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diff changeset
900 return 0;
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diff changeset
901 }
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diff changeset
902 }
275
535004faa1a5 add empty postgresql VFS functions
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parents:
diff changeset
903
279
79029fe26aae add basic postgresql vfs directory functions
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diff changeset
904 if(pg->row >= pg->nrows) {
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parents: 278
diff changeset
905 return 0; // EOF
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diff changeset
906 }
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Olaf Wintermann <olaf.wintermann@gmail.com>
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diff changeset
907
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Olaf Wintermann <olaf.wintermann@gmail.com>
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diff changeset
908 entry->name = PQgetvalue(pg->result, pg->row, 1);
353
382d6c221807 fix pg_vfs_dirio_readdir not initializing some VFS_ENTRY fields
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 350
diff changeset
909 entry->stat_errno = 0;
382d6c221807 fix pg_vfs_dirio_readdir not initializing some VFS_ENTRY fields
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parents: 350
diff changeset
910 entry->stat_extra = NULL;
279
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diff changeset
911
282
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diff changeset
912 if(getstat) {
cfb588e27198 add support for getstat parameter in pg readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 281
diff changeset
913 memset(&entry->stat, 0, sizeof(struct stat));
cfb588e27198 add support for getstat parameter in pg readdir
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parents: 281
diff changeset
914
cfb588e27198 add support for getstat parameter in pg readdir
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parents: 281
diff changeset
915 char *iscollection = PQgetvalue(pg->result, pg->row, 2);
cfb588e27198 add support for getstat parameter in pg readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 281
diff changeset
916 char *lastmodified = PQgetvalue(pg->result, pg->row, 3);
cfb588e27198 add support for getstat parameter in pg readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 281
diff changeset
917 char *creationdate = PQgetvalue(pg->result, pg->row, 4);
cfb588e27198 add support for getstat parameter in pg readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 281
diff changeset
918 char *contentlength = PQgetvalue(pg->result, pg->row, 5);
cfb588e27198 add support for getstat parameter in pg readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 281
diff changeset
919 pg_set_stat(&entry->stat, iscollection, lastmodified, creationdate, contentlength);
cfb588e27198 add support for getstat parameter in pg readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
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diff changeset
920 }
279
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diff changeset
921
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Olaf Wintermann <olaf.wintermann@gmail.com>
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diff changeset
922 pg->row++;
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diff changeset
923 return 1;
275
535004faa1a5 add empty postgresql VFS functions
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parents:
diff changeset
924 }
535004faa1a5 add empty postgresql VFS functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
925
535004faa1a5 add empty postgresql VFS functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
926 void pg_vfs_dirio_close(VFS_DIR dir) {
280
d0d5a970292f implement pg_vfs_dirio_close
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 279
diff changeset
927 pool_handle_t *pool = dir->ctx->pool;
d0d5a970292f implement pg_vfs_dirio_close
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 279
diff changeset
928 PgDir *pg = dir->data;
d0d5a970292f implement pg_vfs_dirio_close
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 279
diff changeset
929 if(pg->result) {
d0d5a970292f implement pg_vfs_dirio_close
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 279
diff changeset
930 PQclear(pg->result);
d0d5a970292f implement pg_vfs_dirio_close
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 279
diff changeset
931 }
d0d5a970292f implement pg_vfs_dirio_close
Olaf Wintermann <olaf.wintermann@gmail.com>
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diff changeset
932 PgFile *pgfile = pg->file->data;
275
535004faa1a5 add empty postgresql VFS functions
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parents:
diff changeset
933
280
d0d5a970292f implement pg_vfs_dirio_close
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 279
diff changeset
934 pool_free(pool, pgfile);
d0d5a970292f implement pg_vfs_dirio_close
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 279
diff changeset
935 pool_free(pool, pg->file);
d0d5a970292f implement pg_vfs_dirio_close
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 279
diff changeset
936 pool_free(pool, pg);
d0d5a970292f implement pg_vfs_dirio_close
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 279
diff changeset
937 pool_free(pool, dir);
275
535004faa1a5 add empty postgresql VFS functions
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parents:
diff changeset
938 }
304
33911d44111d add basic parser for pg timestamps
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 298
diff changeset
939
33911d44111d add basic parser for pg timestamps
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parents: 298
diff changeset
940 time_t pg_convert_timestamp(const char *timestamp) {
311
e676ed461b5b implement pg getlastmodified propfind (and prepare creationdate)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 305
diff changeset
941 struct tm tm;
e676ed461b5b implement pg getlastmodified propfind (and prepare creationdate)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 305
diff changeset
942 if(pg_convert_timestamp_tm(timestamp, &tm)) {
e676ed461b5b implement pg getlastmodified propfind (and prepare creationdate)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 305
diff changeset
943 return 0;
e676ed461b5b implement pg getlastmodified propfind (and prepare creationdate)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 305
diff changeset
944 }
e676ed461b5b implement pg getlastmodified propfind (and prepare creationdate)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 305
diff changeset
945 #ifdef __FreeBSD__
e676ed461b5b implement pg getlastmodified propfind (and prepare creationdate)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 305
diff changeset
946 return timelocal(&tm);
e676ed461b5b implement pg getlastmodified propfind (and prepare creationdate)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 305
diff changeset
947 #else
e676ed461b5b implement pg getlastmodified propfind (and prepare creationdate)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 305
diff changeset
948 return mktime(&tparts) - timezone;
e676ed461b5b implement pg getlastmodified propfind (and prepare creationdate)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 305
diff changeset
949 #endif
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 305
diff changeset
950 }
e676ed461b5b implement pg getlastmodified propfind (and prepare creationdate)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 305
diff changeset
951
e676ed461b5b implement pg getlastmodified propfind (and prepare creationdate)
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parents: 305
diff changeset
952 int pg_convert_timestamp_tm(const char *timestamp, struct tm *tm) {
304
33911d44111d add basic parser for pg timestamps
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parents: 298
diff changeset
953 // TODO: this is a very basic implementation that needs some work
33911d44111d add basic parser for pg timestamps
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diff changeset
954 // format yyyy-mm-dd HH:MM:SS
33911d44111d add basic parser for pg timestamps
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parents: 298
diff changeset
955
311
e676ed461b5b implement pg getlastmodified propfind (and prepare creationdate)
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parents: 305
diff changeset
956 memset(tm, 0, sizeof(struct tm));
304
33911d44111d add basic parser for pg timestamps
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parents: 298
diff changeset
957 size_t len = timestamp ? strlen(timestamp) : 0;
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diff changeset
958 if(len < 19) {
311
e676ed461b5b implement pg getlastmodified propfind (and prepare creationdate)
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parents: 305
diff changeset
959 return 1;
304
33911d44111d add basic parser for pg timestamps
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parents: 298
diff changeset
960 } else if(len > 63) {
311
e676ed461b5b implement pg getlastmodified propfind (and prepare creationdate)
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parents: 305
diff changeset
961 return 1;
304
33911d44111d add basic parser for pg timestamps
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parents: 298
diff changeset
962 }
33911d44111d add basic parser for pg timestamps
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parents: 298
diff changeset
963
33911d44111d add basic parser for pg timestamps
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parents: 298
diff changeset
964 char buf[64];
33911d44111d add basic parser for pg timestamps
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parents: 298
diff changeset
965 memcpy(buf, timestamp, len);
33911d44111d add basic parser for pg timestamps
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diff changeset
966
33911d44111d add basic parser for pg timestamps
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parents: 298
diff changeset
967 char *year_str = buf;
33911d44111d add basic parser for pg timestamps
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parents: 298
diff changeset
968 year_str[4] = '\0';
33911d44111d add basic parser for pg timestamps
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diff changeset
969
33911d44111d add basic parser for pg timestamps
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parents: 298
diff changeset
970 char *month_str = buf + 5;
33911d44111d add basic parser for pg timestamps
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parents: 298
diff changeset
971 month_str[2] = '\0';
33911d44111d add basic parser for pg timestamps
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parents: 298
diff changeset
972
33911d44111d add basic parser for pg timestamps
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parents: 298
diff changeset
973 char *day_str = buf + 8;
33911d44111d add basic parser for pg timestamps
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parents: 298
diff changeset
974 day_str[2] = '\0';
33911d44111d add basic parser for pg timestamps
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parents: 298
diff changeset
975
33911d44111d add basic parser for pg timestamps
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parents: 298
diff changeset
976 char *hour_str = buf + 11;
33911d44111d add basic parser for pg timestamps
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parents: 298
diff changeset
977 hour_str[2] = '\0';
33911d44111d add basic parser for pg timestamps
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parents: 298
diff changeset
978
33911d44111d add basic parser for pg timestamps
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parents: 298
diff changeset
979 char *minute_str = buf + 14;
33911d44111d add basic parser for pg timestamps
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parents: 298
diff changeset
980 minute_str[2] = '\0';
33911d44111d add basic parser for pg timestamps
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parents: 298
diff changeset
981
33911d44111d add basic parser for pg timestamps
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parents: 298
diff changeset
982 char *second_str = buf + 17;
33911d44111d add basic parser for pg timestamps
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parents: 298
diff changeset
983 second_str[2] = '\0';
33911d44111d add basic parser for pg timestamps
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diff changeset
984
311
e676ed461b5b implement pg getlastmodified propfind (and prepare creationdate)
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diff changeset
985 tm->tm_year = atoi(year_str) - 1900;
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parents: 305
diff changeset
986 tm->tm_mon = atoi(month_str) - 1;
e676ed461b5b implement pg getlastmodified propfind (and prepare creationdate)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 305
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987 tm->tm_mday = atoi(day_str);
e676ed461b5b implement pg getlastmodified propfind (and prepare creationdate)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 305
diff changeset
988 tm->tm_hour = atoi(hour_str);
e676ed461b5b implement pg getlastmodified propfind (and prepare creationdate)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 305
diff changeset
989 tm->tm_min = atoi(minute_str);
e676ed461b5b implement pg getlastmodified propfind (and prepare creationdate)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 305
diff changeset
990 tm->tm_sec = atoi(second_str);
304
33911d44111d add basic parser for pg timestamps
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 298
diff changeset
991
311
e676ed461b5b implement pg getlastmodified propfind (and prepare creationdate)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 305
diff changeset
992 return 0;
304
33911d44111d add basic parser for pg timestamps
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 298
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993 }

mercurial