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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 UcxList *proplist = NULL; |
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78 if(properties) { |
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79 proplist = parse_properties_string(sn->context, sstr(properties)); |
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80 } |
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81 |
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82 // check if the list already contains a D:version-name property |
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83 int add_vname = 1; |
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84 UCX_FOREACH(elm, proplist) { |
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85 DavProperty *p = elm->data; |
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86 if(!strcmp(p->ns->name, "DAV:") && !strcmp(p->name, "version-name")) { |
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87 add_vname = 0; |
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88 break; |
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89 } |
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90 } |
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91 if(add_vname) { |
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92 // we need at least the D:version-name prop |
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93 DavProperty *p = malloc(sizeof(DavProperty)); |
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94 p->ns = dav_get_namespace(sn->context, "D"); |
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95 p->name = strdup("version-name"); |
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96 p->value = NULL; |
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97 proplist = ucx_list_prepend(proplist, p); |
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98 } |
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99 |
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100 // create a version-tree request, which is almost the same as propfind |
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101 UcxBuffer *rqbuf = create_propfind_request(sn, proplist, "version-tree", 1); |
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102 UcxBuffer *rpbuf = ucx_buffer_new(NULL, 4096, UCX_BUFFER_AUTOEXTEND); |
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103 |
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104 // do the request |
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105 CURLcode ret = do_report_request(sn, rqbuf, rpbuf); |
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106 long status = 0; |
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107 curl_easy_getinfo (sn->handle, CURLINFO_RESPONSE_CODE, &status); |
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108 int error = 0; |
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109 DavResource *versions = NULL; |
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110 if(ret == CURLE_OK && status == 207) { |
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111 sn->error = DAV_OK; |
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112 |
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113 // parse multistatus response |
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114 PropfindParser *parser = create_propfind_parser(rpbuf, NULL); |
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115 if(parser) { |
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116 DavResource *list_end = NULL; |
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117 |
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118 ResponseTag response; |
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119 int r; |
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120 |
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121 // we don't want name decryption for version resources |
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122 int snflags = sn->flags; |
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123 sn->flags = 0; |
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124 while((r = get_propfind_response(parser, &response)) != 0) { |
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125 if(r == -1) { |
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126 res->session->error = DAV_ERROR; |
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127 error = 1; |
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128 break; |
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129 } |
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130 DavResource *v = response2resource(sn, &response, NULL); |
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131 // add version to list |
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132 if(!versions) { |
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133 versions = v; |
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134 } else { |
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135 list_end->next = v; |
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136 } |
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137 list_end = v; |
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138 |
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139 cleanup_response(&response); |
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140 } |
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141 sn->flags = snflags; |
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142 |
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143 destroy_propfind_parser(parser); |
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144 } else { |
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145 sn->error = DAV_ERROR; |
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146 error = 1; |
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147 } |
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148 } else { |
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149 dav_session_set_error(sn, ret, status); |
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150 error = 1; |
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151 } |
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152 |
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153 // cleanup |
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154 while(proplist) { |
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155 DavProperty *p = proplist->data; |
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156 free(p->name); |
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157 free(p); |
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158 UcxList *next = proplist->next; |
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159 free(proplist); |
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160 proplist = next; |
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161 } |
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162 if(error && versions) { |
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163 DavResource *cur = versions; |
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164 while(cur) { |
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165 DavResource *next = cur->next; |
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166 dav_resource_free(cur); |
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167 cur = next; |
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168 } |
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169 versions = NULL; |
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170 } |
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171 |
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172 return versions; |
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173 } |