libidav/webdav.c

Sun, 21 May 2023 11:52:06 +0200

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Sun, 21 May 2023 11:52:06 +0200
changeset 749
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parent 747
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child 786
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permissions
-rw-r--r--

fix dav-sync crash

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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 #include <libxml/tree.h>
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33
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34 #include "utils.h"
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35 #include "webdav.h"
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36 #include "session.h"
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37 #include "methods.h"
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38 #include <cx/buffer.h>
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39 #include <cx/utils.h>
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40 #include <cx/linked_list.h>
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41 #include <cx/hash_map.h>
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42 #include <cx/compare.h>
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43 #include "davqlparser.h"
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44 #include "davqlexec.h"
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45
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46
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47 DavContext* dav_context_new(void) {
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48 // initialize
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49 DavContext *context = calloc(1, sizeof(DavContext));
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50 if(!context) {
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51 return NULL;
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52 }
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53 context->sessions = cxLinkedListCreate(cxDefaultAllocator, cx_cmp_intptr, CX_STORE_POINTERS);
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54 context->http_proxy = calloc(1, sizeof(DavProxy));
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55 if(!context->http_proxy) {
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56 dav_context_destroy(context);
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57 return NULL;
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58 }
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59 context->https_proxy = calloc(1, sizeof(DavProxy));
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60 if(!context->https_proxy) {
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61 dav_context_destroy(context);
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62 return NULL;
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63 }
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64 context->namespaces = cxHashMapCreate(cxDefaultAllocator, CX_STORE_POINTERS, 16);
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65 if(!context->namespaces) {
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66 dav_context_destroy(context);
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67 return NULL;
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68 }
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69 context->namespaceinfo = cxHashMapCreate(cxDefaultAllocator, CX_STORE_POINTERS, 16);
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70 if(!context->namespaceinfo) {
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71 dav_context_destroy(context);
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72 }
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73 context->keys = cxHashMapCreate(cxDefaultAllocator, CX_STORE_POINTERS, 16);
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74 if(!context->keys) {
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75 dav_context_destroy(context);
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76 return NULL;
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77 }
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78
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79 // add DAV: namespace
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80 if(dav_add_namespace(context, "D", "DAV:")) {
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81 dav_context_destroy(context);
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82 return NULL;
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83 }
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84
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85
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86 // add idav namespace
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87 if(dav_add_namespace(context, "idav", DAV_NS)) {
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88 dav_context_destroy(context);
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89 return NULL;
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90 }
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91
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92 // add idavprops namespace
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93 if(dav_add_namespace(context, "idavprops", DAV_PROPS_NS)) {
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94 dav_context_destroy(context);
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95 return NULL;
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96 }
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97
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98 return context;
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99 }
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100
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101 void dav_context_destroy(DavContext *ctx) {
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102 // destroy all sessions assoziated with this context
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103 CxIterator i = cxListIterator(ctx->sessions);
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104 cx_foreach(DavSession*, sn, i) {
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105 dav_session_destroy(sn);
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106 }
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107 cxListDestroy(ctx->sessions);
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108 if(ctx->http_proxy) {
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109 free(ctx->http_proxy);
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110 }
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111 if(ctx->https_proxy) {
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112 free(ctx->https_proxy);
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113 }
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114
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115 if(ctx->namespaces) {
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116 i = cxMapIteratorValues(ctx->namespaces);
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117 cx_foreach(DavNamespace*, ns, i) {
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118 if(!ns) continue;
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119 if(ns->prefix) {
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120 free(ns->prefix);
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121 }
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122 if(ns->name) {
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123 free(ns->name);
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124 }
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125 free(ns);
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126 }
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127 cxMapDestroy(ctx->namespaces);
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128 }
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129 if(ctx->namespaceinfo) {
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130 // TODO: implement
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131 }
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132 if(ctx->keys) {
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133 i = cxMapIteratorValues(ctx->keys);
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134 cx_foreach(DavKey*, key, i) {
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135 if(!key) continue;
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136 if(key->name) {
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137 free(key->name);
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138 }
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139 if(key->data) {
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140 free(key->data);
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141 }
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142 free(key);
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143 }
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144 cxMapDestroy(ctx->keys);
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145 }
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146
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147 free(ctx);
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148 }
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149
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diff changeset
150 void dav_context_add_key(DavContext *context, DavKey *key) {
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151 cxMapPut(context->keys, cx_hash_key_str(key->name), key);
40
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152 }
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153
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diff changeset
154 DavKey* dav_context_get_key(DavContext *context, const char *name) {
229
df158262f802 fixed dav_context_get_key
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parents: 228
diff changeset
155 if(name) {
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diff changeset
156 return cxMapGet(context->keys, cx_hash_key_str(name));
229
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157 }
242
a39be87d34d4 fixed install target and a missing return statement in libidav
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parents: 229
diff changeset
158 return NULL;
40
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159 }
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parents: 39
diff changeset
160
317
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diff changeset
161 int dav_add_namespace(DavContext *context, const char *prefix, const char *name) {
33
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162 DavNamespace *namespace = malloc(sizeof(DavNamespace));
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163 if(!namespace) {
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164 return 1;
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165 }
607
5dc7fe41e8f8 move some properties to new namespace
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166
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167 char *p = strdup(prefix);
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168 char *n = strdup(name);
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169
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diff changeset
170 int err = 0;
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parents: 587
diff changeset
171 if(p && n) {
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diff changeset
172 namespace->prefix = p;
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diff changeset
173 namespace->name = n;
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174 err = cxMapPut(context->namespaces, cx_hash_key_str(prefix), namespace);
607
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175 }
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176
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177 if(err) {
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178 free(namespace);
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179 if(p) free(p);
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180 if(n) free(n);
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181 }
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182
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183 return err;
33
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184 }
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185
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186 DavNamespace* dav_get_namespace(DavContext *context, const char *prefix) {
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187 return cxMapGet(context->namespaces, cx_hash_key_str(prefix));
33
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188 }
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189
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190 DavNamespace* dav_get_namespace_s(DavContext *context, cxstring prefix) {
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diff changeset
191 return cxMapGet(context->namespaces, cx_hash_key(prefix.ptr, prefix.length));
33
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192 }
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193
609
dc3d70848c7c implement encrypted properties
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diff changeset
194 int dav_enable_namespace_encryption(DavContext *context, const char *ns, DavBool encrypt) {
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195 CxHashKey hkey = cx_hash_key_str(ns);
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196 DavNSInfo *info = cxMapGet(context->namespaceinfo, hkey);
609
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197 if(!info) {
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198 info = calloc(1, sizeof(DavNSInfo));
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diff changeset
199 info->encrypt = encrypt;
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200 cxMapPut(context->namespaceinfo, hkey, info);
609
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201 } else {
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diff changeset
202 info->encrypt = encrypt;
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203 }
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204 return 0;
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parents: 607
diff changeset
205 }
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206
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diff changeset
207 int dav_namespace_is_encrypted(DavContext *context, const char *ns) {
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diff changeset
208 DavNSInfo *info = cxMapGet(context->namespaceinfo, cx_hash_key_str(ns));
609
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diff changeset
209 if(info) {
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diff changeset
210 return info->encrypt;
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211 }
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diff changeset
212 return 0;
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diff changeset
213 }
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diff changeset
214
134
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parents: 128
diff changeset
215 void dav_get_property_namespace_str(
33
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216 DavContext *ctx,
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217 char *prefixed_name,
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218 char **ns,
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219 char **name)
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220 {
134
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diff changeset
221 // TODO: rewrite using dav_get_property_ns
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diff changeset
222
33
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223 char *pname = strchr(prefixed_name, ':');
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224 char *pns = "DAV:";
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225 if(pname) {
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226 DavNamespace *ns = dav_get_namespace_s(
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227 ctx,
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diff changeset
228 cx_strn(prefixed_name, pname-prefixed_name));
128
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parents: 75
diff changeset
229 if(ns) {
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diff changeset
230 pns = ns->name;
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diff changeset
231 pname++;
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diff changeset
232 } else {
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diff changeset
233 pns = NULL;
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diff changeset
234 pname = NULL;
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diff changeset
235 }
33
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236 } else {
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237 pname = prefixed_name;
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238 }
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239 *ns = pns;
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240 *name = pname;
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241 }
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242
134
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parents: 128
diff changeset
243 DavNamespace* dav_get_property_namespace(
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parents: 128
diff changeset
244 DavContext *ctx,
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parents: 128
diff changeset
245 char *prefixed_name,
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diff changeset
246 char **name)
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parents: 128
diff changeset
247 {
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diff changeset
248 char *pname = strchr(prefixed_name, ':');
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parents: 128
diff changeset
249 if(pname) {
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parents: 128
diff changeset
250 DavNamespace *ns = dav_get_namespace_s(
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parents: 128
diff changeset
251 ctx,
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diff changeset
252 cx_strn(prefixed_name, pname-prefixed_name));
134
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parents: 128
diff changeset
253 if(ns) {
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parents: 128
diff changeset
254 *name = pname +1;
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parents: 128
diff changeset
255 return ns;
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parents: 128
diff changeset
256 } else {
4bccc18820e8 implemented execution of field list expressions
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diff changeset
257 *name = NULL;
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diff changeset
258 return NULL;
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parents: 128
diff changeset
259 }
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parents: 128
diff changeset
260 } else {
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parents: 128
diff changeset
261 *name = prefixed_name;
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diff changeset
262 return dav_get_namespace_s(ctx, cx_str("D"));
134
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parents: 128
diff changeset
263 }
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parents: 128
diff changeset
264 }
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parents: 128
diff changeset
265
4bccc18820e8 implemented execution of field list expressions
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parents: 128
diff changeset
266 // TODO: add sstr_t version of dav_get_property_ns
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parents: 128
diff changeset
267
478
baa63fef5c5c fixes redirects
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parents: 475
diff changeset
268 void dav_set_effective_href(DavSession *sn, DavResource *resource) {
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parents: 475
diff changeset
269 char *eff_url;
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parents: 475
diff changeset
270 curl_easy_getinfo(sn->handle, CURLINFO_EFFECTIVE_URL, &eff_url);
baa63fef5c5c fixes redirects
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parents: 475
diff changeset
271 if(eff_url) {
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diff changeset
272 const char *href = util_url_path(eff_url);
478
baa63fef5c5c fixes redirects
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parents: 475
diff changeset
273 if(strcmp(href, resource->href)) {
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parents: 475
diff changeset
274 dav_session_free(sn, resource->href);
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parents: 475
diff changeset
275 resource->href = dav_session_strdup(sn, href);
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parents: 475
diff changeset
276 }
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diff changeset
277 }
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parents: 475
diff changeset
278 }
39
3e55bed345f9 added some aes functions + ucx update
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parents: 38
diff changeset
279
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diff changeset
280 DavResource* dav_get(DavSession *sn, char *path, const char *properties) {
33
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parents:
diff changeset
281 CURL *handle = sn->handle;
48
08d5544c92fb fixed etag handling
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parents: 47
diff changeset
282 DavResource *resource = dav_resource_new(sn, path);
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parents: 47
diff changeset
283 util_set_url(sn, dav_resource_get_href(resource));
33
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parents:
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284
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diff changeset
285 CxList *proplist = NULL;
33
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parents:
diff changeset
286 if(properties) {
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diff changeset
287 proplist = parse_properties_string(sn->context, cx_str(properties));
33
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parents:
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288 }
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diff changeset
289 CxBuffer *rqbuf = create_propfind_request(sn, proplist, "propfind", 0);
efbd59642577 ucx 3 update, basic dav commands work, most stuff is still broken
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parents: 645
diff changeset
290 CxBuffer *rpbuf = cxBufferCreate(NULL, 4096, cxDefaultAllocator, CX_BUFFER_FREE_CONTENTS|CX_BUFFER_AUTO_EXTEND);
33
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291
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parents:
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292 //fwrite(rqbuf->space, 1, rqbuf->size, stdout);
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parents:
diff changeset
293 //printf("\n");
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parents:
diff changeset
294
354
067ea2315a8a moves auth prompt functionality to libidav
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parents: 317
diff changeset
295 CURLcode ret = do_propfind_request(sn, rqbuf, rpbuf);
205
bf756f6c3581 fixed some warnings and wrong usage of curl_easy_getinfo
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296 long status = 0;
33
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297 curl_easy_getinfo (handle, CURLINFO_RESPONSE_CODE, &status);
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298 if(ret == CURLE_OK && status == 207) {
478
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299 dav_set_effective_href(sn, resource);
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diff changeset
300
48
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301 //printf("response\n%s\n", rpbuf->space);
135
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302 // TODO: use PropfindParser
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303 resource = parse_propfind_response(sn, resource, rpbuf);
525
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304 resource->exists = 1;
33
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305 sn->error = DAV_OK;
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306 } else {
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diff changeset
307 dav_session_set_error(sn, ret, status);
48
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diff changeset
308 dav_resource_free(resource);
66
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diff changeset
309 resource = NULL;
33
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310 }
43
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311
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diff changeset
312 cxBufferFree(rqbuf);
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diff changeset
313 cxBufferFree(rpbuf);
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314
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315 if(proplist) {
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diff changeset
316 CxIterator i = cxListIterator(proplist);
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diff changeset
317 cx_foreach(DavProperty*, p, i) {
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diff changeset
318 free(p->name);
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319 }
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diff changeset
320 cxListDestroy(proplist);
223
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diff changeset
321 }
43
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diff changeset
322
33
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323 return resource;
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324 }
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parents:
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325
135
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parents: 134
diff changeset
326
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diff changeset
327 int dav_propfind(DavSession *sn, DavResource *root, CxBuffer *rqbuf) {
43
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328 // clean resource properties
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329 DavResourceData *data = root->data;
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330 cxMapClear(data->properties); // TODO: free existing content
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diff changeset
331
33
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332 CURL *handle = sn->handle;
43
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parents: 41
diff changeset
333 util_set_url(sn, dav_resource_get_href(root));
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parents: 41
diff changeset
334
747
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diff changeset
335 CxBuffer *rpbuf = cxBufferCreate(NULL, 4096, cxDefaultAllocator, CX_BUFFER_FREE_CONTENTS|CX_BUFFER_AUTO_EXTEND);
33
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diff changeset
336 DavResource *resource = root;
354
067ea2315a8a moves auth prompt functionality to libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 317
diff changeset
337 CURLcode ret = do_propfind_request(sn, rqbuf, rpbuf);
292
0a47ffc8b73b fixes wrong int type that results in a crash on some platforms
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 242
diff changeset
338 long status = 0;
205
bf756f6c3581 fixed some warnings and wrong usage of curl_easy_getinfo
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parents: 185
diff changeset
339 long error = 0;
33
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diff changeset
340 curl_easy_getinfo (handle, CURLINFO_RESPONSE_CODE, &status);
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diff changeset
341 if(ret == CURLE_OK && status == 207) {
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diff changeset
342 //printf("response\n%s\n", rpbuf->space);
478
baa63fef5c5c fixes redirects
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 475
diff changeset
343 dav_set_effective_href(sn, resource);
609
dc3d70848c7c implement encrypted properties
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 607
diff changeset
344 // TODO: use PropfindParser
135
664aeaec8d25 replaced old davql (still buggy)
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parents: 134
diff changeset
345 resource = parse_propfind_response(sn, resource, rpbuf);
33
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parents:
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346 sn->error = DAV_OK;
525
26a1d5b9d9d2 improves metadata support in dav-sync push
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diff changeset
347 root->exists = 1;
33
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parents:
diff changeset
348 } else {
43
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parents: 41
diff changeset
349 dav_session_set_error(sn, ret, status);
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parents: 41
diff changeset
350 error = 1;
33
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351 }
747
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diff changeset
352 cxBufferFree(rpbuf);
43
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diff changeset
353 return error;
33
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354 }
0bbbb0341606 some code cleanup and bug fixes
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parents:
diff changeset
355
747
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diff changeset
356 CxList* parse_properties_string(DavContext *context, cxstring str) {
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diff changeset
357 CxList *proplist = cxLinkedListCreateSimple(sizeof(DavProperty));
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diff changeset
358
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diff changeset
359 CxStrtokCtx tok = cx_strtok(str, cx_str(","), INT_MAX);
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diff changeset
360 cxstring s;
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parents: 645
diff changeset
361 while(cx_strtok_next(&tok, &s)) {
efbd59642577 ucx 3 update, basic dav commands work, most stuff is still broken
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parents: 645
diff changeset
362 cxstring nsname = cx_strchr(s, ':');
33
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parents:
diff changeset
363 if(nsname.length > 0) {
747
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parents: 645
diff changeset
364 cxstring nspre = cx_strsubsl(s, 0, nsname.ptr - s.ptr);
33
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parents:
diff changeset
365 nsname.ptr++;
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parents:
diff changeset
366 nsname.length--;
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parents:
diff changeset
367
747
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diff changeset
368 DavProperty dp;
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diff changeset
369 cxstring pre = cx_strtrim(nspre);
efbd59642577 ucx 3 update, basic dav commands work, most stuff is still broken
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parents: 645
diff changeset
370 dp.ns = dav_get_namespace_s(context, pre);
efbd59642577 ucx 3 update, basic dav commands work, most stuff is still broken
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parents: 645
diff changeset
371 dp.name = cx_strdup(nsname).ptr;
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parents: 645
diff changeset
372 dp.value = NULL;
efbd59642577 ucx 3 update, basic dav commands work, most stuff is still broken
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parents: 645
diff changeset
373 if(dp.ns && dp.name) {
efbd59642577 ucx 3 update, basic dav commands work, most stuff is still broken
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parents: 645
diff changeset
374 cxListAdd(proplist, &dp);
33
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parents:
diff changeset
375 } else {
747
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diff changeset
376 free(dp.name);
33
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parents:
diff changeset
377 }
0bbbb0341606 some code cleanup and bug fixes
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parents:
diff changeset
378 }
0bbbb0341606 some code cleanup and bug fixes
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parents:
diff changeset
379 }
747
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diff changeset
380
33
0bbbb0341606 some code cleanup and bug fixes
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parents:
diff changeset
381 return proplist;
0bbbb0341606 some code cleanup and bug fixes
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parents:
diff changeset
382 }
0bbbb0341606 some code cleanup and bug fixes
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parents:
diff changeset
383
0bbbb0341606 some code cleanup and bug fixes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
384 DavResource* dav_query(DavSession *sn, char *query, ...) {
747
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parents: 645
diff changeset
385 DavQLStatement *stmt = dav_parse_statement(cx_str(query));
135
664aeaec8d25 replaced old davql (still buggy)
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parents: 134
diff changeset
386 if(!stmt) {
664aeaec8d25 replaced old davql (still buggy)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 134
diff changeset
387 sn->error = DAV_ERROR;
664aeaec8d25 replaced old davql (still buggy)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 134
diff changeset
388 return NULL;
664aeaec8d25 replaced old davql (still buggy)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 134
diff changeset
389 }
664aeaec8d25 replaced old davql (still buggy)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 134
diff changeset
390 if(stmt->errorcode != 0) {
664aeaec8d25 replaced old davql (still buggy)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 134
diff changeset
391 sn->error = DAV_QL_ERROR;
664aeaec8d25 replaced old davql (still buggy)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 134
diff changeset
392 dav_free_statement(stmt);
664aeaec8d25 replaced old davql (still buggy)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 134
diff changeset
393 return NULL;
664aeaec8d25 replaced old davql (still buggy)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 134
diff changeset
394 }
664aeaec8d25 replaced old davql (still buggy)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 134
diff changeset
395
33
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
396 va_list ap;
0bbbb0341606 some code cleanup and bug fixes
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parents:
diff changeset
397 va_start(ap, query);
135
664aeaec8d25 replaced old davql (still buggy)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 134
diff changeset
398 DavResult result = dav_statement_execv(sn, stmt, ap);
33
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parents:
diff changeset
399 va_end(ap);
135
664aeaec8d25 replaced old davql (still buggy)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 134
diff changeset
400
664aeaec8d25 replaced old davql (still buggy)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 134
diff changeset
401 dav_free_statement(stmt);
664aeaec8d25 replaced old davql (still buggy)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 134
diff changeset
402 return result.result;
33
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parents:
diff changeset
403 }
0bbbb0341606 some code cleanup and bug fixes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
404
0bbbb0341606 some code cleanup and bug fixes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
405
0bbbb0341606 some code cleanup and bug fixes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
406
0bbbb0341606 some code cleanup and bug fixes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
407

mercurial