libidav/versioning.c

Thu, 23 May 2024 23:23:36 +0200

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Thu, 23 May 2024 23:23:36 +0200
changeset 818
bc782cca0759
parent 747
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permissions
-rw-r--r--

merge branch ucx-3.1

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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 2018 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 <stdio.h>
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30 #include <stdlib.h>
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31 #include <string.h>
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32
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33 #include "versioning.h"
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34
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35 #include "methods.h"
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36 #include "utils.h"
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37 #include "session.h"
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38
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39 static int basic_deltav_op(DavResource *res, char *method) {
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40 DavSession *sn = res->session;
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41 CURL *handle = sn->handle;
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42 util_set_url(sn, dav_resource_get_href(res));
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43
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44 DavLock *lock = dav_get_lock(res->session, res->path);
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45 char *locktoken = lock ? lock->token : NULL;
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46
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47 CURLcode ret = do_simple_request(sn, method, locktoken);
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48 long status = 0;
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49 curl_easy_getinfo (handle, CURLINFO_RESPONSE_CODE, &status);
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50 if(!(ret == CURLE_OK && (status >= 200 && status < 300))) {
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51 dav_session_set_error(sn, ret, status);
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52 return 1;
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53 }
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54 return 0;
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55 }
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56
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57 int dav_versioncontrol(DavResource *res) {
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58 return basic_deltav_op(res, "VERSION-CONTROL");
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59 }
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60
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61 int dav_checkout(DavResource *res) {
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62 return basic_deltav_op(res, "CHECKOUT");
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63 }
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64
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65 int dav_checkin(DavResource *res) {
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66 return basic_deltav_op(res, "CHECKIN");
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67 }
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68
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69 int dav_uncheckout(DavResource *res) {
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70 return basic_deltav_op(res, "UNCHECKOUT");
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71 }
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72
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73 DavResource* dav_versiontree(DavResource *res, char *properties) {
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74 DavSession *sn = res->session;
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75 util_set_url(sn, dav_resource_get_href(res));
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76
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77 CxList *proplist = NULL;
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78 if(properties) {
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79 proplist = parse_properties_string(sn->context, cx_str(properties));
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80
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81 // check if the list already contains a D:version-name property
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82 int add_vname = 1;
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83 CxIterator i = cxListIterator(proplist);
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84 cx_foreach(DavProperty *, p, i) {
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85 if(!strcmp(p->ns->name, "DAV:") && !strcmp(p->name, "version-name")) {
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86 add_vname = 0;
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87 break;
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88 }
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89 }
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90 if(add_vname) {
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91 // we need at least the D:version-name prop
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92 DavProperty p;
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93 p.ns = dav_get_namespace(sn->context, "D");
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94 p.name = strdup("version-name");
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95 p.value = NULL;
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96 cxListInsert(proplist, 0, &p);
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97 }
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98 }
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99
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100
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101
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102 // create a version-tree request, which is almost the same as propfind
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103 CxBuffer *rqbuf = create_propfind_request(sn, proplist, "version-tree", 1);
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104 CxBuffer *rpbuf = cxBufferCreate(NULL, 4096, cxDefaultAllocator, CX_BUFFER_FREE_CONTENTS|CX_BUFFER_AUTO_EXTEND);
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105
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106 // do the request
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107 CURLcode ret = do_report_request(sn, rqbuf, rpbuf);
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108 long status = 0;
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109 curl_easy_getinfo (sn->handle, CURLINFO_RESPONSE_CODE, &status);
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110 int error = 0;
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111 DavResource *versions = NULL;
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112 if(ret == CURLE_OK && status == 207) {
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113 sn->error = DAV_OK;
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114
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115 // parse multistatus response
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116 PropfindParser *parser = create_propfind_parser(rpbuf, NULL);
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117 if(parser) {
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118 DavResource *list_end = NULL;
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119
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120 ResponseTag response;
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121 int r;
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122
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123 // we don't want name decryption for version resources
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124 int snflags = sn->flags;
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125 sn->flags = 0;
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126 while((r = get_propfind_response(parser, &response)) != 0) {
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127 if(r == -1) {
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128 res->session->error = DAV_ERROR;
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129 error = 1;
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130 break;
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131 }
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132 DavResource *v = response2resource(sn, &response, NULL);
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133 // add version to list
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134 if(!versions) {
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135 versions = v;
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136 } else {
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137 list_end->next = v;
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138 }
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139 list_end = v;
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140
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141 cleanup_response(&response);
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142 }
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143 sn->flags = snflags;
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144
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145 destroy_propfind_parser(parser);
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146 } else {
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147 sn->error = DAV_ERROR;
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148 error = 1;
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149 }
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150 } else {
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151 dav_session_set_error(sn, ret, status);
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152 error = 1;
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153 }
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154
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155 // cleanup
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156 if(proplist) {
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157 CxIterator i = cxListIterator(proplist);
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158 cx_foreach(DavProperty*, p, i) {
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159 free(p->name);
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160 }
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161 cxListDestroy(proplist);
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162 }
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163
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164 if(error && versions) {
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165 DavResource *cur = versions;
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166 while(cur) {
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167 DavResource *next = cur->next;
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168 dav_resource_free(cur);
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169 cur = next;
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170 }
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171 versions = NULL;
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172 }
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173
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174 return versions;
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175 }

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