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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 | } |