Sun, 02 Feb 2020 17:42:05 +0100
add mkcol and delete interface to webdav backend, move webdav vfs logic to operation
13 | 1 | /* |
2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. | |
3 | * | |
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4 | * Copyright 2019 Olaf Wintermann. All rights reserved. |
13 | 5 | * |
6 | * Redistribution and use in source and binary forms, with or without | |
7 | * modification, are permitted provided that the following conditions are met: | |
8 | * | |
9 | * 1. Redistributions of source code must retain the above copyright | |
10 | * notice, this list of conditions and the following disclaimer. | |
11 | * | |
12 | * 2. Redistributions in binary form must reproduce the above copyright | |
13 | * notice, this list of conditions and the following disclaimer in the | |
14 | * documentation and/or other materials provided with the distribution. | |
15 | * | |
16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE | |
20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
26 | * POSSIBILITY OF SUCH DAMAGE. | |
27 | */ | |
28 | ||
29 | #include <stdio.h> | |
30 | #include <stdlib.h> | |
31 | #include <string.h> | |
32 | ||
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33 | #include <ucx/buffer.h> |
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34 | #include <ucx/list.h> |
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35 | |
13 | 36 | #include "webdav.h" |
37 | ||
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38 | #include "search.h" |
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39 | #include "versioning.h" |
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40 | #include "multistatus.h" |
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41 | #include "requestparser.h" |
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42 | #include "operation.h" |
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43 | |
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44 | #include "../util/pblock.h" |
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45 | #include "../util/util.h" |
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46 | #include "../daemon/session.h" |
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47 | #include "../daemon/http.h" |
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48 | #include "../daemon/protocol.h" |
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49 | |
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50 | static UcxMap *method_handler_map; |
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51 | |
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52 | static WebdavBackend default_backend; |
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53 | |
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54 | static WSNamespace dav_namespace; |
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55 | |
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56 | static WebdavProperty dav_resourcetype_empty; |
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57 | static WebdavProperty dav_resourcetype_collection; |
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58 | static WSXmlData dav_resourcetype_collection_value; |
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59 | |
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60 | #define WEBDAV_RESOURCE_TYPE_COLLECTION "<D:collection/>" |
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61 | |
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62 | static void init_default_backend(void) { |
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63 | memset(&default_backend, 0, sizeof(WebdavBackend)); |
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64 | default_backend.propfind_init = default_propfind_init; |
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65 | default_backend.propfind_do = default_propfind_do; |
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66 | default_backend.propfind_finish = default_propfind_finish; |
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67 | default_backend.proppatch_do = default_proppatch_do; |
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68 | default_backend.proppatch_finish = default_proppatch_finish; |
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69 | default_backend.opt_mkcol = NULL; |
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70 | default_backend.opt_delete = NULL; |
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71 | default_backend.settings = WS_WEBDAV_PROPFIND_USE_VFS; |
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72 | } |
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73 | |
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74 | int webdav_init(pblock *pb, Session *sn, Request *rq) { |
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75 | init_default_backend(); |
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76 | |
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77 | method_handler_map = ucx_map_new(64); |
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78 | |
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79 | ucx_map_cstr_put(method_handler_map, "OPTIONS", webdav_options); |
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80 | ucx_map_cstr_put(method_handler_map, "PROPFIND", webdav_propfind); |
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81 | ucx_map_cstr_put(method_handler_map, "PROPPATCH", webdav_proppatch); |
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82 | ucx_map_cstr_put(method_handler_map, "MKCOL", webdav_mkcol); |
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83 | ucx_map_cstr_put(method_handler_map, "POST", webdav_post); |
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84 | ucx_map_cstr_put(method_handler_map, "DELETE", webdav_delete); |
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85 | ucx_map_cstr_put(method_handler_map, "PUT", webdav_put); |
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86 | ucx_map_cstr_put(method_handler_map, "COPY", webdav_copy); |
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87 | ucx_map_cstr_put(method_handler_map, "MOVE", webdav_move); |
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88 | ucx_map_cstr_put(method_handler_map, "LOCK", webdav_lock); |
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89 | ucx_map_cstr_put(method_handler_map, "UNLOCK", webdav_unlock); |
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90 | ucx_map_cstr_put(method_handler_map, "REPORT", webdav_report); |
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91 | ucx_map_cstr_put(method_handler_map, "ACL", webdav_acl); |
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92 | |
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93 | ucx_map_cstr_put(method_handler_map, "SEARCH", webdav_search); |
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94 | |
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95 | ucx_map_cstr_put(method_handler_map, "VERSION-CONTROL", webdav_version_control); |
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96 | ucx_map_cstr_put(method_handler_map, "CHECKOUT", webdav_checkout); |
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97 | ucx_map_cstr_put(method_handler_map, "CHECKIN", webdav_checkin); |
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98 | ucx_map_cstr_put(method_handler_map, "UNCHECKOUT", webdav_uncheckout); |
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99 | ucx_map_cstr_put(method_handler_map, "MKWORKSPACE", webdav_mkworkspace); |
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100 | ucx_map_cstr_put(method_handler_map, "UPDATE", webdav_update); |
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101 | ucx_map_cstr_put(method_handler_map, "LABEL", webdav_label); |
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102 | ucx_map_cstr_put(method_handler_map, "MERGE", webdav_merge); |
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103 | |
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104 | dav_namespace.href = (xmlChar*)"DAV:"; |
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105 | dav_namespace.prefix = (xmlChar*)"D"; |
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106 | |
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107 | dav_resourcetype_empty.namespace = &dav_namespace; |
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108 | dav_resourcetype_empty.name = "resourcetype"; |
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109 | |
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110 | dav_resourcetype_collection.namespace = &dav_namespace; |
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111 | dav_resourcetype_collection.name = "resourcetype"; |
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112 | dav_resourcetype_collection.value.data = &dav_resourcetype_collection_value; |
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113 | dav_resourcetype_collection.vtype = WS_VALUE_XML_DATA; |
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114 | dav_resourcetype_collection_value.data = WEBDAV_RESOURCE_TYPE_COLLECTION; |
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115 | dav_resourcetype_collection_value.length = sizeof(WEBDAV_RESOURCE_TYPE_COLLECTION)-1; |
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116 | |
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117 | return REQ_PROCEED; |
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118 | } |
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119 | |
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120 | |
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121 | int webdav_service(pblock *pb, Session *sn, Request *rq) { |
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122 | if(!method_handler_map) { |
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123 | log_ereport(LOG_FAILURE, "WebDAV module not initialized"); |
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124 | protocol_status(sn, rq, 500, NULL); |
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125 | return REQ_ABORTED; |
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126 | } |
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127 | char *method = pblock_findkeyval(pb_key_method, rq->reqpb); |
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128 | |
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129 | FuncPtr saf = (FuncPtr)ucx_map_cstr_get(method_handler_map, method); |
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130 | if(!saf) { |
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131 | return REQ_NOACTION; |
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132 | } |
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133 | |
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134 | return saf(pb, sn, rq); |
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135 | } |
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136 | |
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137 | UcxBuffer* rqbody2buffer(Session *sn, Request *rq) { |
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138 | if(!sn->inbuf) { |
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139 | //request body required, set http response code |
211
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140 | protocol_status(sn, rq, 400, NULL); |
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141 | return NULL; |
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142 | } |
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143 | |
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144 | UcxBuffer *buf = ucx_buffer_new( |
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145 | NULL, |
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146 | sn->inbuf->maxsize, |
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147 | UCX_BUFFER_AUTOEXTEND); |
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148 | if(!buf) { |
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149 | protocol_status(sn, rq, 500, NULL); |
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150 | return NULL; |
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151 | } |
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152 | |
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153 | char in[2048]; |
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154 | int r; |
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155 | while((r = netbuf_getbytes(sn->inbuf, in, 2048)) > 0) { |
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156 | if(ucx_buffer_write(in, 1, r, buf) != r) { |
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157 | protocol_status(sn, rq, 500, NULL); |
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158 | ucx_buffer_free(buf); |
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159 | return NULL; |
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160 | } |
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161 | } |
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162 | |
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163 | return buf; |
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164 | } |
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165 | |
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166 | int webdav_options(pblock *pb, Session *sn, Request *rq) { |
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167 | return REQ_ABORTED; |
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168 | } |
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169 | |
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170 | int webdav_propfind(pblock *pb, Session *sn, Request *rq) { |
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171 | char *expect = pblock_findkeyval(pb_key_expect, rq->headers); |
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172 | if(expect) { |
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173 | if(!strcasecmp(expect, "100-continue")) { |
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174 | if(http_send_continue(sn)) { |
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175 | return REQ_ABORTED; |
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176 | } |
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177 | } |
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178 | } |
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179 | |
211
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180 | UcxBuffer *reqbody = rqbody2buffer(sn, rq); |
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181 | if(!reqbody) { |
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182 | return REQ_ABORTED; |
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183 | } |
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184 | |
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185 | UcxAllocator *a = session_get_allocator(sn); |
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186 | |
211
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187 | int error = 0; |
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188 | WebdavPropfindRequest *propfind = propfind_parse( |
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189 | sn, |
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190 | rq, |
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191 | reqbody->space, |
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192 | reqbody->size, |
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193 | &error); |
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194 | ucx_buffer_free(reqbody); |
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195 | if(!propfind) { |
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196 | switch(error) { |
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197 | // TODO: handle all errors |
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198 | default: return REQ_ABORTED; |
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199 | } |
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200 | } |
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201 | |
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202 | WebdavBackend *dav = rq->davCollection ? |
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203 | rq->davCollection : &default_backend; |
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204 | |
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205 | |
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206 | // requested uri and path |
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207 | char *path = pblock_findkeyval(pb_key_path, rq->vars); |
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208 | char *uri = pblock_findkeyval(pb_key_uri, rq->reqpb); |
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209 | |
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210 | // VFS settings are only taken from the first backend |
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211 | uint32_t settings = dav->settings; |
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212 | |
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213 | // list of individual WebdavPropfindRequest objects for each Backend |
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214 | UcxList *requestObjects = NULL; |
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215 | |
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216 | // Initialize all Webdav Backends |
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217 | if(webdav_propfind_init(dav, propfind, path, &requestObjects)) { |
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218 | return REQ_ABORTED; |
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219 | } |
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220 | |
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221 | // The multistatus response object contains responses for all |
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222 | // requested resources. At the end the Multistatus object will be |
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223 | // serialized to xml |
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224 | Multistatus *ms = multistatus_response(sn, rq); |
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225 | if(!ms) { |
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226 | return REQ_ABORTED; |
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227 | } |
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228 | // WebdavResponse is the public interface used by Backends |
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229 | // for adding resources to the response |
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230 | WebdavResponse *response = (WebdavResponse*)ms; |
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231 | |
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232 | WebdavOperation *op = webdav_create_propfind_operation( |
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233 | sn, |
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234 | rq, |
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235 | dav, |
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236 | propfind->properties, |
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237 | requestObjects, |
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238 | response); |
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239 | |
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240 | // some Backends can list all children by themselves, but some |
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241 | // require the VFS for this |
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242 | WSBool usevfs = (settings & WS_WEBDAV_PROPFIND_USE_VFS) |
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243 | == WS_WEBDAV_PROPFIND_USE_VFS; |
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244 | struct stat s; |
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245 | struct stat *statptr = NULL; |
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246 | |
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247 | VFSContext *vfs = NULL; |
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248 | if(usevfs) { |
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249 | vfs = vfs_request_context(sn, rq); |
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250 | if(!vfs) { |
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251 | return REQ_ABORTED; |
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252 | } |
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253 | |
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254 | if(vfs_stat(vfs, path, &s)) { |
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255 | protocol_status(sn, rq, util_errno2status(vfs->vfs_errno), NULL); |
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256 | return REQ_ABORTED; |
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257 | } |
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258 | statptr = &s; |
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259 | if(!S_ISDIR(s.st_mode)) { |
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260 | // the file is not a directory, therefore we don't need the VFS |
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261 | usevfs = FALSE; |
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262 | } |
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263 | } |
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264 | if(propfind->depth == 0) { |
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265 | usevfs = FALSE; |
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266 | } |
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267 | |
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268 | int ret = REQ_PROCEED; |
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269 | |
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270 | // create WebdavResource object for requested resource |
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271 | if(!webdav_op_propfind_begin(op, uri, NULL, statptr)) { |
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272 | // propfind for the requested resource was successful |
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273 | |
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274 | // usevfsdir is TRUE if |
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275 | // the webdav backend has not disabled vfs usage |
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276 | // the file is a directory |
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277 | // depth is not 0 |
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278 | // in this case we need to execute propfind_do for all children |
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279 | if(usevfs) { |
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280 | if(webdav_op_propfind_children(op, vfs, uri, path)) { |
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281 | ret = REQ_ABORTED; |
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282 | } |
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283 | } |
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284 | } |
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285 | |
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286 | // if propfind was successful, send the result to the client |
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287 | if(ret == REQ_PROCEED && multistatus_send(ms, sn->csd)) { |
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288 | ret = REQ_ABORTED; |
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289 | // TODO: log error |
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290 | } else { |
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291 | // TODO: error response |
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292 | } |
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293 | |
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294 | // finish the propfind request |
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295 | // this function should cleanup all resources, therefore we execute it |
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296 | // even if a previous function failed |
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297 | if(webdav_op_propfind_finish(op)) { |
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298 | // TODO: log error |
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299 | ret = REQ_ABORTED; |
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300 | } |
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301 | |
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302 | // cleanup |
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303 | xmlFreeDoc(propfind->doc); |
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304 | |
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305 | return ret; |
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306 | } |
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307 | |
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308 | /* |
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309 | * Initializes Backend Chain |
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310 | * |
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311 | * Calls propfind_init of each Backend and generates a list of custom |
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312 | * WebdavPropfindRequest objects for each backend |
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313 | */ |
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314 | int webdav_propfind_init( |
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315 | WebdavBackend *dav, |
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316 | WebdavPropfindRequest *propfind, |
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317 | const char *path, |
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318 | UcxList **out_req) |
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319 | { |
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320 | pool_handle_t *pool = propfind->sn->pool; |
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321 | UcxAllocator *a = session_get_allocator(propfind->sn); |
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322 | |
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323 | // list of individual WebdavPropfindRequest objects for each Backend |
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324 | UcxList *requestObjects = NULL; |
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325 | |
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326 | // new properties after init, start with clone of original plist |
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327 | WebdavPList *newProp = webdav_plist_clone(pool, propfind->properties); |
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328 | size_t newPropCount = propfind->propcount; |
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329 | |
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330 | // Call propfind_init for each Backend |
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331 | // propfind_init can return a new property list, which |
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332 | // will be passed to the next backend |
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333 | |
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334 | WebdavBackend *davList = dav; |
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335 | while(davList) { |
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336 | // create WebdavPropfindRequest copy |
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337 | WebdavPropfindRequest *pReq = pool_malloc( |
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338 | pool, |
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339 | sizeof(WebdavPropfindRequest)); |
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340 | memcpy(pReq, propfind, sizeof(WebdavPropfindRequest)); |
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341 | // use new plist after previous init (or orig. plist in the first run) |
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342 | pReq->properties = newProp; |
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343 | pReq->propcount = newPropCount; |
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344 | |
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345 | // add new WebdavPropfindRequest object to list for later use |
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346 | requestObjects = ucx_list_append_a(a, requestObjects, pReq); |
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347 | if(!requestObjects) { |
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348 | return REQ_ABORTED; // OOM |
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349 | } |
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350 | |
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351 | // create plist copy as out-plist for init |
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352 | newProp = webdav_plist_clone(pool, newProp); |
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353 | |
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354 | // run init: this can generate a new properties list (newProp) |
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355 | // which will be passed to the next backend |
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356 | if(davList->propfind_init(pReq, path, &newProp)) { |
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357 | return REQ_ABORTED; |
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358 | } |
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359 | |
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360 | newPropCount = webdav_plist_size(newProp); |
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361 | |
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362 | davList = davList->next; |
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363 | } |
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364 | |
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365 | *out_req = requestObjects; |
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366 | return REQ_PROCEED; |
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367 | } |
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368 | |
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369 | |
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370 | int webdav_proppatch(pblock *pb, Session *sn, Request *rq) { |
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371 | char *expect = pblock_findkeyval(pb_key_expect, rq->headers); |
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372 | if(expect) { |
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373 | if(!strcasecmp(expect, "100-continue")) { |
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374 | if(http_send_continue(sn)) { |
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375 | return REQ_ABORTED; |
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376 | } |
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377 | } |
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378 | } |
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379 | |
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380 | UcxBuffer *reqbody = rqbody2buffer(sn, rq); |
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381 | if(!reqbody) { |
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382 | return REQ_ABORTED; |
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383 | } |
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384 | |
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385 | int error = 0; |
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386 | WebdavProppatchRequest *proppatch = proppatch_parse( |
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387 | sn, |
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388 | rq, |
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389 | reqbody->space, |
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390 | reqbody->size, |
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391 | &error); |
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392 | ucx_buffer_free(reqbody); |
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393 | if(!proppatch) { |
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394 | switch(error) { |
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395 | // TODO: handle all errors |
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396 | default: return REQ_ABORTED; |
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397 | } |
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398 | } |
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399 | |
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400 | WebdavBackend *dav = rq->davCollection ? |
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401 | rq->davCollection : &default_backend; |
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402 | |
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403 | // requested uri and path |
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404 | char *path = pblock_findkeyval(pb_key_path, rq->vars); |
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405 | char *uri = pblock_findkeyval(pb_key_uri, rq->reqpb); |
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406 | |
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407 | // The multistatus response object contains responses for all |
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408 | // requested resources. At the end the Multistatus object will be |
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409 | // serialized to xml |
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410 | Multistatus *ms = multistatus_response(sn, rq); |
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411 | if(!ms) { |
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412 | return REQ_ABORTED; |
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413 | } |
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414 | ms->proppatch = TRUE; |
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415 | |
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416 | // WebdavResponse is the public interface used by Backends |
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417 | // for adding resources to the response |
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418 | WebdavResponse *response = (WebdavResponse*)ms; |
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419 | |
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420 | WebdavOperation *op = webdav_create_proppatch_operation( |
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421 | sn, |
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422 | rq, |
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423 | dav, |
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424 | proppatch, |
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425 | response); |
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426 | |
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427 | int ret = REQ_PROCEED; |
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428 | |
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429 | // Execute proppatch |
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430 | if(webdav_op_proppatch(op, uri, path)) { |
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431 | ret = REQ_ABORTED; |
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432 | } |
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433 | |
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434 | // send response |
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435 | if(ret == REQ_PROCEED && multistatus_send(ms, sn->csd)) { |
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436 | ret = REQ_ABORTED; |
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437 | // TODO: log error |
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438 | } else { |
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439 | // TODO: error response |
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440 | } |
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441 | |
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442 | // cleanup |
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443 | xmlFreeDoc(proppatch->doc); |
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444 | |
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445 | return ret; |
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446 | } |
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447 | |
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448 | int webdav_mkcol(pblock *pb, Session *sn, Request *rq) { |
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449 | WebdavVFSOperation *op = webdav_vfs_op(sn, rq, rq->davCollection, TRUE); |
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450 | if(!op) { |
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451 | return REQ_ABORTED; |
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452 | } |
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453 | |
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454 | int ret = webdav_vfs_op_do(op, WEBDAV_VFS_MKDIR); |
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455 | |
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456 | return ret; |
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457 | } |
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458 | |
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459 | int webdav_post(pblock *pb, Session *sn, Request *rq) { |
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460 | return REQ_ABORTED; |
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461 | } |
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462 | |
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463 | static int webdav_delete_collection( |
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464 | Session *sn, |
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465 | Request *rq, |
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466 | VFSContext *vfs, |
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467 | const char *path) |
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468 | { |
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469 | |
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470 | } |
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471 | |
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472 | int webdav_delete(pblock *pb, Session *sn, Request *rq) { |
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473 | WebdavVFSOperation *op = webdav_vfs_op(sn, rq, rq->davCollection, TRUE); |
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474 | if(!op) { |
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475 | return REQ_ABORTED; |
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476 | } |
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477 | |
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478 | int ret = webdav_vfs_op_do(op, WEBDAV_VFS_MKDIR); |
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479 | |
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480 | return ret; |
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481 | } |
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482 | |
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483 | int webdav_put(pblock *pb, Session *sn, Request *rq) { |
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484 | return REQ_ABORTED; |
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485 | } |
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486 | |
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487 | int webdav_copy(pblock *pb, Session *sn, Request *rq) { |
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488 | return REQ_ABORTED; |
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489 | } |
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490 | |
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491 | int webdav_move(pblock *pb, Session *sn, Request *rq) { |
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492 | return REQ_ABORTED; |
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493 | } |
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494 | |
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495 | int webdav_lock(pblock *pb, Session *sn, Request *rq) { |
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496 | return REQ_ABORTED; |
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497 | } |
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498 | |
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499 | int webdav_unlock(pblock *pb, Session *sn, Request *rq) { |
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500 | return REQ_ABORTED; |
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501 | } |
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502 | |
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503 | int webdav_report(pblock *pb, Session *sn, Request *rq) { |
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504 | return REQ_ABORTED; |
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505 | } |
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506 | |
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507 | int webdav_acl(pblock *pb, Session *sn, Request *rq) { |
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508 | return REQ_ABORTED; |
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509 | } |
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510 | |
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511 | |
244
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512 | |
211
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513 | /* ------------------------ default webdav backend ------------------------ */ |
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514 | |
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515 | int default_propfind_init( |
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516 | WebdavPropfindRequest *rq, |
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517 | const char* path, |
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518 | WebdavPList **outplist) |
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519 | { |
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520 | DefaultWebdavData *data = pool_malloc( |
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521 | rq->sn->pool, |
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522 | sizeof(DefaultWebdavData)); |
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523 | if(!data) { |
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524 | return 1; |
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525 | } |
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526 | rq->userdata = data; |
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527 | |
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528 | data->vfsproperties = webdav_vfs_properties(outplist, TRUE, 0); |
211
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529 | |
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530 | return 0; |
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531 | } |
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532 | |
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533 | int default_propfind_do( |
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534 | WebdavPropfindRequest *request, |
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535 | WebdavResponse *response, |
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536 | VFS_DIR parent, |
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537 | WebdavResource *resource, |
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538 | struct stat *s) |
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539 | { |
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540 | DefaultWebdavData *data = request->userdata; |
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541 | |
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542 | // add all requested vfs properties like getcontentlength ... |
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543 | if(webdav_add_vfs_properties( |
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544 | resource, |
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545 | request->sn->pool, |
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546 | data->vfsproperties, |
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547 | s)) |
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548 | { |
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549 | return 1; |
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550 | } |
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551 | |
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552 | return 0; |
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553 | } |
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554 | |
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555 | int default_propfind_finish(WebdavPropfindRequest *rq) { |
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556 | return 0; |
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557 | } |
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558 | |
243
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559 | int default_proppatch_do( |
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560 | WebdavProppatchRequest *request, |
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561 | WebdavResource *response, |
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562 | VFSFile *file, |
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563 | WebdavPList **setInOut, |
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564 | WebdavPList **removeInOut) |
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565 | { |
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566 | return 0; |
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567 | } |
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568 | |
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569 | int default_proppatch_finish( |
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570 | WebdavProppatchRequest *request, |
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571 | WebdavResource *response, |
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572 | VFSFile *file, |
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573 | WSBool commit) |
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574 | { |
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575 | return 0; |
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576 | } |
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577 | |
211
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578 | |
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579 | /* ------------------------------ public API ------------------------------ */ |
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580 | |
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581 | int webdav_getdepth(Request *rq) { |
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582 | char *depth_str = pblock_findkeyval(pb_key_depth, rq->headers); |
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583 | int depth = 0; |
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584 | if(depth_str) { |
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585 | size_t dlen = strlen(depth_str); |
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586 | if(!memcmp(depth_str, "infinity", dlen)) { |
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587 | depth = -1; |
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588 | } else if(dlen == 1 && depth_str[0] == '1') { |
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589 | depth = 1; |
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590 | } |
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591 | } |
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592 | return depth; |
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593 | } |
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594 | |
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595 | int webdav_plist_add( |
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596 | pool_handle_t *pool, |
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597 | WebdavPList **begin, |
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598 | WebdavPList **end, |
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599 | WebdavProperty *prop) |
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600 | { |
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601 | WebdavPList *elm = pool_malloc(pool, sizeof(WebdavPList)); |
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602 | if(!elm) { |
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603 | return 1; |
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604 | } |
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605 | elm->prev = *end; |
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606 | elm->next = NULL; |
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607 | elm->property = prop; |
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608 | |
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609 | if(!*begin) { |
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610 | *begin = elm; |
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611 | *end = elm; |
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612 | return 0; |
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613 | } |
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614 | |
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615 | (*end)->next = elm; |
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616 | *end = elm; |
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617 | |
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618 | return 0; |
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619 | } |
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620 | |
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621 | WebdavPList* webdav_plist_clone(pool_handle_t *pool, WebdavPList *list) { |
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622 | return webdav_plist_clone_s(pool, list, NULL); |
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623 | } |
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624 | |
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625 | WebdavPList* webdav_plist_clone_s( |
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626 | pool_handle_t *pool, |
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627 | WebdavPList *list, |
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628 | size_t *newlen) |
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629 | { |
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630 | WebdavPList *new_list = NULL; // start of the new list |
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631 | WebdavPList *new_list_end = NULL; // end of the new list |
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632 | |
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633 | size_t len = 0; |
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634 | |
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635 | WebdavPList *elm = list; |
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636 | while(elm) { |
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637 | // copy list item |
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638 | WebdavPList *new_elm = pool_malloc(pool, sizeof(WebdavPList)); |
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639 | if(!new_elm) { |
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640 | if(newlen) *newlen = 0; |
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641 | return NULL; |
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642 | } |
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643 | new_elm->property = elm->property; // new list contains original ptr |
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644 | new_elm->prev = new_list_end; |
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645 | new_elm->next = NULL; |
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646 | |
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647 | if(new_list_end) { |
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648 | new_list_end->next = new_elm; |
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649 | } else { |
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650 | new_list = new_elm; |
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651 | } |
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652 | new_list_end = new_elm; |
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653 | |
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654 | len++; |
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655 | elm = elm->next; |
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656 | } |
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657 | |
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658 | if(newlen) *newlen = len; |
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659 | return new_list; |
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660 | } |
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661 | |
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662 | size_t webdav_plist_size(WebdavPList *list) { |
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663 | size_t count = 0; |
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664 | WebdavPList *elm = list; |
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665 | while(elm) { |
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666 | count++; |
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667 | elm = elm->next; |
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668 | } |
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669 | return count; |
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670 | } |
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671 | |
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672 | WebdavPListIterator webdav_plist_iterator(WebdavPList **list) { |
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673 | WebdavPListIterator i; |
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674 | i.list = list; |
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675 | i.cur = NULL; |
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676 | i.next = *list; |
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677 | i.index = 0; |
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678 | return i; |
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679 | } |
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680 | |
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681 | int webdav_plist_iterator_next(WebdavPListIterator *i, WebdavPList **cur) { |
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682 | if(i->cur) { |
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683 | i->index++; |
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684 | } |
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685 | |
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686 | i->cur = i->next; |
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687 | i->next = i->cur ? i->cur->next : NULL; |
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688 | *cur = i->cur; |
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689 | |
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690 | return i->cur != NULL; |
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691 | } |
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692 | |
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693 | void webdav_plist_iterator_remove_current(WebdavPListIterator *i) { |
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694 | WebdavPList *cur = i->cur; |
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695 | if(cur->prev) { |
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696 | cur->prev->next = cur->next; |
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697 | if(cur->next) { |
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698 | cur->next->prev = cur->prev; |
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699 | } |
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700 | } else { |
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701 | *i->list = cur->next; |
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702 | if(cur->next) { |
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703 | cur->next->prev = NULL; |
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704 | } |
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705 | } |
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706 | } |
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707 | |
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708 | int webdav_nslist_add( |
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709 | pool_handle_t *pool, |
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710 | WebdavNSList **begin, |
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711 | WebdavNSList **end, |
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712 | WSNamespace *ns) |
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713 | { |
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714 | // same as webdav_plist_add but with different type |
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715 | WebdavNSList *elm = pool_malloc(pool, sizeof(WebdavNSList)); |
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716 | if(!elm) { |
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717 | return 1; |
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718 | } |
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719 | elm->prev = *end; |
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720 | elm->next = NULL; |
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721 | elm->namespace = ns; |
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722 | |
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723 | if(!*begin) { |
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724 | *begin = elm; |
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725 | *end = elm; |
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726 | return 0; |
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727 | } |
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728 | |
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729 | (*end)->next = elm; |
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730 | *end = elm; |
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731 | |
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732 | return 0; |
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733 | } |
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734 | |
215
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735 | |
211
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736 | WSNamespace* webdav_dav_namespace(void) { |
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737 | return &dav_namespace; |
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738 | } |
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739 | |
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740 | WebdavProperty* webdav_dav_property( |
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741 | pool_handle_t *pool, |
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742 | const char *name) |
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743 | { |
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744 | WebdavProperty *property = pool_malloc(pool, sizeof(WebdavProperty)); |
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745 | if(!property) { |
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746 | return NULL; |
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747 | } |
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748 | memset(property, 0, sizeof(WebdavProperty)); |
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749 | |
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750 | property->namespace = &dav_namespace; |
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751 | property->name = name; |
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752 | return property; |
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753 | } |
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754 | |
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755 | int webdav_property_set_value( |
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756 | WebdavProperty *p, |
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757 | pool_handle_t *pool, |
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758 | char *value) |
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759 | { |
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760 | WSXmlNode *node = pool_malloc(pool, sizeof(WSXmlNode)); |
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761 | if(!node) { |
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762 | return 1; |
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763 | } |
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764 | ZERO(node, sizeof(WSXmlNode)); |
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765 | |
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766 | node->content = (xmlChar*)value; |
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767 | node->type = XML_TEXT_NODE; |
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768 | |
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769 | p->value.node = node; |
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770 | p->vtype = WS_VALUE_XML_NODE; |
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771 | return 0; |
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772 | } |
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773 | |
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774 | WebdavVFSProperties webdav_vfs_properties( |
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775 | WebdavPList **plistInOut, |
211
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776 | WSBool removefromlist, |
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777 | uint32_t flags) |
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778 | { |
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779 | WebdavVFSProperties ret; |
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780 | ZERO(&ret, sizeof(WebdavVFSProperties)); |
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781 | |
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782 | WSBool etag = 1; |
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783 | WSBool creationdate = 1; |
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784 | |
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785 | WebdavPListIterator i = webdav_plist_iterator(plistInOut); |
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786 | WebdavPList *cur; |
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787 | while(webdav_plist_iterator_next(&i, &cur)) { |
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788 | WSNamespace *ns = cur->property->namespace; |
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789 | if(ns && !strcmp((const char*)ns->href, "DAV:")) { |
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790 | const char *name = cur->property->name; |
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791 | WSBool remove_prop = TRUE; |
211
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792 | if(!strcmp(name, "getlastmodified")) { |
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793 | ret.getlastmodified = 1; |
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794 | } else if(!strcmp(name, "getcontentlength")) { |
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795 | ret.getcontentlength = 1; |
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796 | } else if(!strcmp(name, "resourcetype")) { |
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797 | ret.getresourcetype = 1; |
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798 | } else if(etag && !strcmp(name, "getetag")) { |
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799 | ret.getetag = 1; |
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800 | } else if(creationdate && !strcmp(name, "creationdate")) { |
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801 | ret.creationdate = 1; |
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802 | } else { |
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803 | remove_prop = FALSE; |
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804 | } |
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805 | |
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806 | if(remove_prop) { |
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807 | webdav_plist_iterator_remove_current(&i); |
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808 | } |
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809 | } |
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810 | } |
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811 | |
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812 | return ret; |
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813 | } |
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814 | |
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815 | static inline int w_addprop( |
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816 | WebdavResource *res, |
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817 | pool_handle_t *pool, |
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818 | const char *name, |
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819 | char *value) |
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820 | { |
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821 | WebdavProperty *p = webdav_dav_property(pool, name); |
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822 | if(!p) { |
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823 | return 1; |
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824 | } |
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825 | if(webdav_property_set_value(p, pool, value)) { |
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826 | return 1; |
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827 | } |
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828 | return res->addproperty(res, p, 200); |
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829 | } |
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830 | |
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831 | int webdav_add_vfs_properties( |
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832 | WebdavResource *res, |
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833 | pool_handle_t *pool, |
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834 | WebdavVFSProperties properties, |
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835 | struct stat *s) |
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836 | { |
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837 | if(properties.getresourcetype) { |
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838 | if(S_ISDIR(s->st_mode)) { |
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839 | res->addproperty(res, &dav_resourcetype_collection, 200); |
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840 | } else { |
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841 | res->addproperty(res, &dav_resourcetype_empty, 200); |
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842 | } |
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843 | } |
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844 | if(properties.getcontentlength) { |
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845 | char *buf = pool_malloc(pool, 64); |
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846 | if(!buf) { |
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847 | return 1; |
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848 | } |
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849 | uint64_t contentlength = s->st_size; |
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850 | snprintf(buf, 64, "%" PRIu64 "\0", contentlength); |
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851 | if(w_addprop(res, pool, "getcontentlength", buf)) { |
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852 | return 1; |
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853 | } |
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854 | } |
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855 | if(properties.getlastmodified) { |
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856 | char *buf = pool_malloc(pool, HTTP_DATE_LEN+1); |
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857 | if(!buf) { |
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858 | return 1; |
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859 | } |
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860 | buf[HTTP_DATE_LEN] = 0; |
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861 | |
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862 | struct tm mtms; |
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863 | struct tm *mtm = system_gmtime(&s->st_mtim.tv_sec, &mtms); |
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864 | |
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865 | if(mtm) { |
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866 | strftime(buf, HTTP_DATE_LEN, HTTP_DATE_FMT, mtm); |
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867 | if(w_addprop(res, pool, "getlastmodified", buf)) { |
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868 | return 1; |
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869 | } |
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870 | } else { |
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871 | return 1; |
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872 | } |
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873 | } |
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874 | if(properties.creationdate) { |
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875 | // TODO |
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876 | } |
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877 | if(properties.getetag) { |
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878 | char *buf = pool_malloc(pool, 96); |
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879 | if(!buf) { |
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880 | return 1; |
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881 | } |
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882 | snprintf(buf, |
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883 | 96, |
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884 | "\"%x-%x\"\0", |
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885 | (int)s->st_size, |
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886 | (int)s->st_mtim.tv_sec); |
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887 | if(w_addprop(res, pool, "getetag", buf)) { |
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888 | return 1; |
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889 | } |
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890 | } |
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891 | |
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892 | return 0; |
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893 | } |