libidav/session.c

Tue, 12 Dec 2017 23:58:54 +0100

author
Mike Becker <universe@uap-core.de>
date
Tue, 12 Dec 2017 23:58:54 +0100
branch
v1.1
changeset 343
b9c6e0be5774
parent 292
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child 354
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permissions
-rw-r--r--

fixes infinite loop when trying to overwrite a collection with a regular file

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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 2016 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 <ucx/buffer.h>
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34 #include <ucx/utils.h>
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35
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36 #include "utils.h"
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37 #include "session.h"
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38 #include "resource.h"
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39 #include "methods.h"
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40
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41 DavSession* dav_session_new(DavContext *context, char *base_url) {
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42 if(!base_url) {
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43 return NULL;
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44 }
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45 sstr_t url = sstr(base_url);
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46 if(url.length == 0) {
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47 return NULL;
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48 }
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49 DavSession *sn = malloc(sizeof(DavSession));
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50 sn->mp = ucx_mempool_new(DAV_SESSION_MEMPOOL_SIZE);
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51 sn->pathcache = ucx_map_new_a(sn->mp->allocator, DAV_PATH_CACHE_SIZE);
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52 sn->key = NULL;
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53 sn->errorstr = NULL;
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54 sn->error = DAV_OK;
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55 sn->flags = 0;
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56 if(url.ptr[url.length - 1] == '/') {
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57 sstr_t url = sstrdup_a(sn->mp->allocator, sstr(base_url));
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58 sn->base_url = url.ptr;
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59 } else {
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60 char *url_str = ucx_mempool_malloc(sn->mp, url.length + 2);
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61 memcpy(url_str, base_url, url.length);
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62 url_str[url.length] = '/';
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63 url_str[url.length + 1] = '\0';
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64 sn->base_url = url_str;
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65 }
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66 sn->handle = curl_easy_init();
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67 curl_easy_setopt(sn->handle, CURLOPT_FOLLOWLOCATION, 1L);
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68
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69 // create lock manager
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70 DavLockManager *locks = ucx_mempool_malloc(sn->mp, sizeof(DavLockManager));
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71 locks->resource_locks = ucx_map_new_a(sn->mp->allocator, 16);
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72 locks->collection_locks = NULL;
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73 sn->locks = locks;
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75 // set proxy
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76 DavProxy *proxy = sstrprefix(url, S("https")) ? context->https_proxy
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77 : context->http_proxy;
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78
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79 if (proxy->url) {
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80 curl_easy_setopt(sn->handle, CURLOPT_PROXY, proxy->url);
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81 if (proxy->username) {
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82 curl_easy_setopt(sn->handle, CURLOPT_PROXYUSERNAME,
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83 proxy->username);
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84 if (proxy->password) {
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85 curl_easy_setopt(sn->handle, CURLOPT_PROXYPASSWORD,
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86 proxy->password);
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87 } else {
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88 // TODO: prompt
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89 }
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90 }
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91 if(proxy->no_proxy) {
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92 curl_easy_setopt(sn->handle, CURLOPT_NOPROXY,
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93 proxy->no_proxy);
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94 }
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95 }
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96
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97 // set url
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98 curl_easy_setopt(sn->handle, CURLOPT_URL, base_url);
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99
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100 // add to context
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101 context->sessions = ucx_list_append(context->sessions, sn);
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102 sn->context = context;
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103
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104 return sn;
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105 }
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106
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107 DavSession* dav_session_new_auth(
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108 DavContext *context,
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109 char *base_url,
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110 char *user,
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111 char *password)
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112 {
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113 DavSession *sn = dav_session_new(context, base_url);
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114 if(!sn) {
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115 return NULL;
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116 }
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117 dav_session_set_auth(sn, user, password);
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118 return sn;
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119 }
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120
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121 void dav_session_set_auth(DavSession *sn, char *user, char *password) {
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122 if(user && password) {
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123 size_t ulen = strlen(user);
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124 size_t plen = strlen(password);
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125 size_t upwdlen = ulen + plen + 2;
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126 char *upwdbuf = malloc(upwdlen);
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127 snprintf(upwdbuf, upwdlen, "%s:%s", user, password);
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128 curl_easy_setopt(sn->handle, CURLOPT_USERPWD, upwdbuf);
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129 free(upwdbuf);
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130 }
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131 }
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132
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133 void dav_session_enable_encryption(DavSession *sn, DavKey *key, int flags) {
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134 sn->key = key;
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135 // TODO: review sanity
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136 if(flags != 0) {
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137 sn->flags |= flags;
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138 } else {
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139 sn->flags |= DAV_SESSION_ENCRYPT_CONTENT;
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140 }
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141 }
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142
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143 void dav_session_set_error(DavSession *sn, CURLcode c, int status) {
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144 if(status > 0) {
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145 switch(status) {
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146 default: {
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147 switch(c) {
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148 default: sn->error = DAV_ERROR;
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149 }
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150 break;
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151 }
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152 case 401: sn->error = DAV_UNAUTHORIZED; break;
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153 case 403: sn->error = DAV_FORBIDDEN; break;
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154 case 404: sn->error = DAV_NOT_FOUND; break;
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diff changeset
155 case 405: sn->error = DAV_METHOD_NOT_ALLOWED; break;
238
b167226fb804 added support for error codes 407,413,414 and 511
Mike Becker <universe@uap-core.de>
parents: 225
diff changeset
156 case 407: sn->error = DAV_PROXY_AUTH_REQUIRED; break;
43
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parents:
diff changeset
157 case 409: sn->error = DAV_CONFLICT; break;
238
b167226fb804 added support for error codes 407,413,414 and 511
Mike Becker <universe@uap-core.de>
parents: 225
diff changeset
158 case 413: sn->error = DAV_REQUEST_ENTITY_TOO_LARGE; break;
b167226fb804 added support for error codes 407,413,414 and 511
Mike Becker <universe@uap-core.de>
parents: 225
diff changeset
159 case 414: sn->error = DAV_REQUEST_URL_TOO_LONG; break;
207
de23f8881e9f fixed hash verification and head requests
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parents: 199
diff changeset
160 case 423: sn->error = DAV_LOCKED; break;
238
b167226fb804 added support for error codes 407,413,414 and 511
Mike Becker <universe@uap-core.de>
parents: 225
diff changeset
161 case 511: sn->error = DAV_NET_AUTH_REQUIRED; break;
43
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parents:
diff changeset
162 }
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parents:
diff changeset
163 } else {
100
f4127c4d1018 improved error messages
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diff changeset
164 switch(c) {
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parents: 75
diff changeset
165 case CURLE_UNSUPPORTED_PROTOCOL: sn->error = DAV_UNSUPPORTED_PROTOCOL; break;
f4127c4d1018 improved error messages
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parents: 75
diff changeset
166 case CURLE_COULDNT_RESOLVE_PROXY: sn->error = DAV_COULDNT_RESOLVE_PROXY; break;
f4127c4d1018 improved error messages
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 75
diff changeset
167 case CURLE_COULDNT_RESOLVE_HOST: sn->error = DAV_COULDNT_RESOLVE_HOST; break;
f4127c4d1018 improved error messages
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 75
diff changeset
168 case CURLE_COULDNT_CONNECT: sn->error = DAV_COULDNT_CONNECT; break;
f4127c4d1018 improved error messages
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parents: 75
diff changeset
169 case CURLE_OPERATION_TIMEDOUT: sn->error = DAV_TIMEOUT; break;
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parents: 75
diff changeset
170 case CURLE_SSL_CONNECT_ERROR:
f4127c4d1018 improved error messages
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 75
diff changeset
171 case CURLE_PEER_FAILED_VERIFICATION:
f4127c4d1018 improved error messages
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 75
diff changeset
172 case CURLE_SSL_ENGINE_NOTFOUND:
f4127c4d1018 improved error messages
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 75
diff changeset
173 case CURLE_SSL_ENGINE_SETFAILED:
f4127c4d1018 improved error messages
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 75
diff changeset
174 case CURLE_SSL_CERTPROBLEM:
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 75
diff changeset
175 case CURLE_SSL_CIPHER:
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 75
diff changeset
176 case CURLE_SSL_CACERT:
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 75
diff changeset
177 case CURLE_SSL_CACERT_BADFILE:
f4127c4d1018 improved error messages
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 75
diff changeset
178 case CURLE_SSL_SHUTDOWN_FAILED:
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 75
diff changeset
179 case CURLE_SSL_CRL_BADFILE:
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parents: 75
diff changeset
180 case CURLE_SSL_ISSUER_ERROR: sn->error = DAV_SSL_ERROR; break;
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parents: 75
diff changeset
181 default: sn->error = DAV_ERROR; break;
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parents: 75
diff changeset
182 }
43
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183 }
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parents:
diff changeset
184 if(c != CURLE_OK) {
225
a297c2e28fa1 improved error handling in libidav
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diff changeset
185 dav_session_set_errstr(sn, curl_easy_strerror(c));
43
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diff changeset
186 } else {
225
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diff changeset
187 dav_session_set_errstr(sn, NULL);
43
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188 }
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parents:
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189 }
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parents:
diff changeset
190
225
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diff changeset
191 void dav_session_set_errstr(DavSession *sn, const char *str) {
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diff changeset
192 if(sn->errorstr) {
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parents: 222
diff changeset
193 dav_session_free(sn, sn->errorstr);
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parents: 222
diff changeset
194 }
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parents: 222
diff changeset
195 char *errstr = NULL;
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parents: 222
diff changeset
196 if(str) {
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diff changeset
197 errstr = dav_session_strdup(sn, str);
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parents: 222
diff changeset
198 }
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parents: 222
diff changeset
199 sn->errorstr = errstr;
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diff changeset
200 }
a297c2e28fa1 improved error handling in libidav
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parents: 222
diff changeset
201
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diff changeset
202 void dav_session_destroy(DavSession *sn) {
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203 // remove session from context
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parents:
diff changeset
204 UcxList *sessions = sn->context->sessions;
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parents:
diff changeset
205 ssize_t i = ucx_list_find(sessions, sn, ucx_ptrcmp, NULL);
74
da079dc0724c fixed many memory leaks
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parents: 68
diff changeset
206 if(i >= 0) {
43
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parents:
diff changeset
207 UcxList *elm = ucx_list_get(sessions, i);
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parents:
diff changeset
208 if(elm) {
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parents:
diff changeset
209 sn->context->sessions = ucx_list_remove(sessions, elm);
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parents:
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210 }
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parents:
diff changeset
211 }
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parents:
diff changeset
212
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parents:
diff changeset
213 ucx_mempool_destroy(sn->mp);
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parents:
diff changeset
214 curl_easy_cleanup(sn->handle);
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parents:
diff changeset
215 free(sn);
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parents:
diff changeset
216 }
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parents:
diff changeset
217
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parents:
diff changeset
218
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parents:
diff changeset
219 void* dav_session_malloc(DavSession *sn, size_t size) {
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parents:
diff changeset
220 return ucx_mempool_malloc(sn->mp, size);
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parents:
diff changeset
221 }
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parents:
diff changeset
222
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parents:
diff changeset
223 void* dav_session_calloc(DavSession *sn, size_t nelm, size_t size) {
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parents:
diff changeset
224 return ucx_mempool_calloc(sn->mp, nelm, size);
03076907b58a added file name encryption
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parents:
diff changeset
225 }
03076907b58a added file name encryption
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parents:
diff changeset
226
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parents:
diff changeset
227 void* dav_session_realloc(DavSession *sn, void *ptr, size_t size) {
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parents:
diff changeset
228 return ucx_mempool_realloc(sn->mp, ptr, size);
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parents:
diff changeset
229 }
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parents:
diff changeset
230
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parents:
diff changeset
231 void dav_session_free(DavSession *sn, void *ptr) {
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parents:
diff changeset
232 ucx_mempool_free(sn->mp, ptr);
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parents:
diff changeset
233 }
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parents:
diff changeset
234
225
a297c2e28fa1 improved error handling in libidav
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parents: 222
diff changeset
235 char* dav_session_strdup(DavSession *sn, const char *str) {
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parents: 222
diff changeset
236 return sstrdup_a(sn->mp->allocator, sstr((char*)str)).ptr;
43
03076907b58a added file name encryption
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parents:
diff changeset
237 }
03076907b58a added file name encryption
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parents:
diff changeset
238
03076907b58a added file name encryption
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parents:
diff changeset
239
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parents:
diff changeset
240 char* dav_session_create_plain_href(DavSession *sn, char *path) {
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
241 if(!DAV_ENCRYPT_NAME(sn)) {
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parents:
diff changeset
242 // non encrypted file names
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parents:
diff changeset
243 char *url = util_path_to_url(sn, path);
03076907b58a added file name encryption
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parents:
diff changeset
244 char *href = dav_session_strdup(sn, util_url_path(url));
03076907b58a added file name encryption
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
245 free(url);
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parents:
diff changeset
246 return href;
03076907b58a added file name encryption
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
247 } else {
03076907b58a added file name encryption
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parents:
diff changeset
248 return NULL;
03076907b58a added file name encryption
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parents:
diff changeset
249 }
03076907b58a added file name encryption
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
250 }
03076907b58a added file name encryption
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
251
03076907b58a added file name encryption
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parents:
diff changeset
252 char* dav_session_get_href(DavSession *sn, char *path) {
03076907b58a added file name encryption
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
253 if(DAV_ENCRYPT_NAME(sn)) {
03076907b58a added file name encryption
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parents:
diff changeset
254 sstr_t p = sstr(path);
03076907b58a added file name encryption
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
255 UcxBuffer *href = ucx_buffer_new(NULL, 256, UCX_BUFFER_AUTOEXTEND);
03076907b58a added file name encryption
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
256 UcxBuffer *pbuf = ucx_buffer_new(NULL, 256, UCX_BUFFER_AUTOEXTEND);
03076907b58a added file name encryption
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parents:
diff changeset
257 int start = 0;
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parents:
diff changeset
258 int begin = 0;
03076907b58a added file name encryption
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parents:
diff changeset
259
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parents:
diff changeset
260 // check path cache
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
261 char *cp = strdup(path);
03076907b58a added file name encryption
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parents:
diff changeset
262 //printf("cp: %s\n", cp);
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
263 while(strlen(cp) > 1) {
03076907b58a added file name encryption
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
264 char *cached = ucx_map_cstr_get(sn->pathcache, cp);
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parents:
diff changeset
265 if(cached) {
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parents:
diff changeset
266 start = strlen(cp);
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parents:
diff changeset
267 begin = start;
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parents:
diff changeset
268 ucx_buffer_puts(href, cached);
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parents:
diff changeset
269 break;
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parents:
diff changeset
270 } else {
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parents:
diff changeset
271 // check, if the parent path is cached
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parents:
diff changeset
272 char *f = cp;
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parents:
diff changeset
273 cp = util_parent_path(cp);
03076907b58a added file name encryption
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parents:
diff changeset
274 free(f);
03076907b58a added file name encryption
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parents:
diff changeset
275 }
03076907b58a added file name encryption
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parents:
diff changeset
276 }
03076907b58a added file name encryption
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parents:
diff changeset
277 free(cp);
03076907b58a added file name encryption
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
278 if(href->pos == 0) {
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parents:
diff changeset
279 // if there are no cached elements we have to add the base url path
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parents:
diff changeset
280 // to the href buffer
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parents:
diff changeset
281 ucx_buffer_puts(href, util_url_path(sn->base_url));
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parents:
diff changeset
282 }
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parents:
diff changeset
283
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parents:
diff changeset
284 // create resource for name lookup
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parents:
diff changeset
285 sstr_t rp = sstrdup(sstrn(path, start));
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parents:
diff changeset
286 DavResource *root = dav_resource_new(sn, rp.ptr);
150
37fb12574acd added checksums for encrypted resources
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parents: 135
diff changeset
287 free(rp.ptr);
43
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parents:
diff changeset
288 resource_set_href(root, sstrn(href->space, href->pos));
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parents:
diff changeset
289
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parents:
diff changeset
290 // create request buffer for propfind requests
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parents:
diff changeset
291 UcxBuffer *rqbuf = create_basic_propfind_request();
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parents:
diff changeset
292
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parents:
diff changeset
293 sstr_t remaining = sstrsubs(p, start);
74
da079dc0724c fixed many memory leaks
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parents: 68
diff changeset
294 ssize_t nelm = 0;
43
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parents:
diff changeset
295 sstr_t *elms = sstrsplit(remaining, S("/"), &nelm);
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parents:
diff changeset
296 DavResource *res = root;
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parents:
diff changeset
297 ucx_buffer_puts(pbuf, res->path);
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parents:
diff changeset
298 // iterate over all remaining path elements
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parents:
diff changeset
299 for(int i=0;i<nelm;i++) {
03076907b58a added file name encryption
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parents:
diff changeset
300 sstr_t elm = elms[i];
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parents:
diff changeset
301 if(elm.length > 0) {
03076907b58a added file name encryption
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parents:
diff changeset
302 //printf("elm: %.*s\n", elm.length, elm.ptr);
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parents:
diff changeset
303 DavResource *child = dav_find_child(sn, res, rqbuf, elm.ptr);
03076907b58a added file name encryption
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parents:
diff changeset
304
03076907b58a added file name encryption
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parents:
diff changeset
305 // if necessary add a path separator
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parents:
diff changeset
306 if(pbuf->space[pbuf->pos-1] != '/') {
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parents:
diff changeset
307 if(href->space[href->pos-1] != '/') {
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parents:
diff changeset
308 ucx_buffer_putc(href, '/');
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parents:
diff changeset
309 }
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parents:
diff changeset
310 ucx_buffer_putc(pbuf, '/');
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parents:
diff changeset
311 }
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parents:
diff changeset
312 // add last path/href to the cache
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parents:
diff changeset
313 sstr_t pp = sstrn(pbuf->space, pbuf->size);
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parents:
diff changeset
314 sstr_t hh = sstrn(href->space, href->size);
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parents:
diff changeset
315 dav_session_cache_path(sn, pp, hh);
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parents:
diff changeset
316
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parents:
diff changeset
317 ucx_buffer_write(elm.ptr, 1, elm.length, pbuf);
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parents:
diff changeset
318 if(child) {
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parents:
diff changeset
319 ucx_buffer_puts(href, util_resource_name(child->href));
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diff changeset
320 res = child;
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parents:
diff changeset
321 } else {
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parents:
diff changeset
322 //printf("random\n");
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parents:
diff changeset
323 char *random_name = util_random_str();
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parents:
diff changeset
324 ucx_buffer_puts(href, random_name);
03076907b58a added file name encryption
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parents:
diff changeset
325 free(random_name);
03076907b58a added file name encryption
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parents:
diff changeset
326 }
03076907b58a added file name encryption
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parents:
diff changeset
327 }
151
a316613205dc fixed some memory leaks, content verification and dav info
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 150
diff changeset
328
a316613205dc fixed some memory leaks, content verification and dav info
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parents: 150
diff changeset
329 // cleanup
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diff changeset
330 free(elm.ptr);
43
03076907b58a added file name encryption
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331 }
151
a316613205dc fixed some memory leaks, content verification and dav info
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parents: 150
diff changeset
332 free(elms);
43
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parents:
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333
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parents:
diff changeset
334 // if necessary add a path separator
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parents:
diff changeset
335 if(p.ptr[p.length-1] == '/') {
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parents:
diff changeset
336 if(href->space[href->pos-1] != '/') {
03076907b58a added file name encryption
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parents:
diff changeset
337 ucx_buffer_putc(href, '/');
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parents:
diff changeset
338 }
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parents:
diff changeset
339 ucx_buffer_putc(pbuf, '/');
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parents:
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340 }
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341 // add the final path to the cache
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parents:
diff changeset
342 sstr_t pp = sstrn(pbuf->space, pbuf->size);
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parents:
diff changeset
343 sstr_t hh = sstrn(href->space, href->size);
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parents:
diff changeset
344 dav_session_cache_path(sn, pp, hh);
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parents:
diff changeset
345
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parents:
diff changeset
346 sstr_t href_str = sstrdup_a(
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diff changeset
347 sn->mp->allocator,
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diff changeset
348 sstrn(href->space,
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diff changeset
349 href->size));
03076907b58a added file name encryption
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parents:
diff changeset
350
03076907b58a added file name encryption
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parents:
diff changeset
351 // cleanup
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parents:
diff changeset
352 dav_resource_free_all(root);
150
37fb12574acd added checksums for encrypted resources
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parents: 135
diff changeset
353 ucx_buffer_free(rqbuf);
43
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parents:
diff changeset
354 ucx_buffer_free(pbuf);
03076907b58a added file name encryption
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parents:
diff changeset
355 ucx_buffer_free(href);
03076907b58a added file name encryption
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parents:
diff changeset
356
03076907b58a added file name encryption
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parents:
diff changeset
357 return href_str.ptr;
03076907b58a added file name encryption
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parents:
diff changeset
358 } else {
03076907b58a added file name encryption
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parents:
diff changeset
359 return dav_session_create_plain_href(sn, path);
03076907b58a added file name encryption
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parents:
diff changeset
360 }
03076907b58a added file name encryption
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parents:
diff changeset
361 }
03076907b58a added file name encryption
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
362
292
0a47ffc8b73b fixes wrong int type that results in a crash on some platforms
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 238
diff changeset
363 DavResource* dav_find_child(DavSession *sn, DavResource *res, UcxBuffer *rqbuf, char *name) {
135
664aeaec8d25 replaced old davql (still buggy)
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parents: 104
diff changeset
364 if(res && !dav_propfind(sn, res, rqbuf)) {
43
03076907b58a added file name encryption
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parents:
diff changeset
365 DavResource *child = res->children;
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parents:
diff changeset
366 while(child) {
03076907b58a added file name encryption
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parents:
diff changeset
367 if(!strcmp(child->name, name)) {
03076907b58a added file name encryption
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parents:
diff changeset
368 return child;
03076907b58a added file name encryption
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parents:
diff changeset
369 }
03076907b58a added file name encryption
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parents:
diff changeset
370 child = child->next;
03076907b58a added file name encryption
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parents:
diff changeset
371 }
03076907b58a added file name encryption
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parents:
diff changeset
372 }
03076907b58a added file name encryption
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parents:
diff changeset
373 return NULL;
03076907b58a added file name encryption
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parents:
diff changeset
374 }
03076907b58a added file name encryption
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parents:
diff changeset
375
03076907b58a added file name encryption
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parents:
diff changeset
376 void dav_session_cache_path(DavSession *sn, sstr_t path, sstr_t href) {
03076907b58a added file name encryption
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parents:
diff changeset
377 char *elm = ucx_map_sstr_get(sn->pathcache, path);
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parents:
diff changeset
378 if(!elm) {
03076907b58a added file name encryption
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parents:
diff changeset
379 href = sstrdup_a(sn->mp->allocator, href);
03076907b58a added file name encryption
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parents:
diff changeset
380 ucx_map_sstr_put(sn->pathcache, path, href.ptr);
03076907b58a added file name encryption
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parents:
diff changeset
381 }
03076907b58a added file name encryption
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parents:
diff changeset
382 }
208
1fb26aca5093 added API for webdav locking
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parents: 207
diff changeset
383
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parents: 207
diff changeset
384
1fb26aca5093 added API for webdav locking
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parents: 207
diff changeset
385 DavLock* dav_create_lock(DavSession *sn, char *token, char *timeout) {
1fb26aca5093 added API for webdav locking
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parents: 207
diff changeset
386 DavLock *lock = dav_session_malloc(sn, sizeof(DavLock));
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parents: 207
diff changeset
387 lock->path = NULL;
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diff changeset
388 lock->token = dav_session_strdup(sn, token);
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parents: 207
diff changeset
389
1fb26aca5093 added API for webdav locking
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parents: 207
diff changeset
390 // TODO: timeout
1fb26aca5093 added API for webdav locking
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parents: 207
diff changeset
391
1fb26aca5093 added API for webdav locking
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parents: 207
diff changeset
392 return lock;
1fb26aca5093 added API for webdav locking
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parents: 207
diff changeset
393 }
1fb26aca5093 added API for webdav locking
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parents: 207
diff changeset
394
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
395 void dav_destroy_lock(DavSession *sn, DavLock *lock) {
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
396 dav_session_free(sn, lock->token);
1fb26aca5093 added API for webdav locking
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parents: 207
diff changeset
397 if(lock->path) {
1fb26aca5093 added API for webdav locking
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parents: 207
diff changeset
398 dav_session_free(sn, lock->path);
1fb26aca5093 added API for webdav locking
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parents: 207
diff changeset
399 }
1fb26aca5093 added API for webdav locking
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parents: 207
diff changeset
400 dav_session_free(sn, lock);
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
401 }
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
402
1fb26aca5093 added API for webdav locking
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parents: 207
diff changeset
403 int dav_add_resource_lock(DavSession *sn, char *path, DavLock *lock) {
1fb26aca5093 added API for webdav locking
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parents: 207
diff changeset
404 DavLockManager *locks = sn->locks;
1fb26aca5093 added API for webdav locking
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parents: 207
diff changeset
405 if(ucx_map_cstr_get(locks->resource_locks, path)) {
1fb26aca5093 added API for webdav locking
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parents: 207
diff changeset
406 return -1;
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
407 }
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
408
1fb26aca5093 added API for webdav locking
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parents: 207
diff changeset
409 ucx_map_cstr_put(locks->resource_locks, path, lock);
1fb26aca5093 added API for webdav locking
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parents: 207
diff changeset
410 return 0;
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
411 }
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
412
1fb26aca5093 added API for webdav locking
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parents: 207
diff changeset
413 static void insert_lock(DavSession *sn, UcxList *elm, UcxList *newelm) {
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
414 UcxList *next = elm->next;
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
415 if(next) {
1fb26aca5093 added API for webdav locking
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parents: 207
diff changeset
416 next->prev = newelm;
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
417 newelm->next = next;
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
418 }
1fb26aca5093 added API for webdav locking
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parents: 207
diff changeset
419 newelm->prev = elm;
1fb26aca5093 added API for webdav locking
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parents: 207
diff changeset
420 elm->next = newelm;
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
421 }
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
422
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
423 int dav_add_collection_lock(DavSession *sn, char *path, DavLock *lock) {
1fb26aca5093 added API for webdav locking
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parents: 207
diff changeset
424 DavLockManager *locks = sn->locks;
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
425 if(!locks->collection_locks) {
1fb26aca5093 added API for webdav locking
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parents: 207
diff changeset
426 locks->collection_locks = ucx_list_append_a(
1fb26aca5093 added API for webdav locking
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parents: 207
diff changeset
427 sn->mp->allocator,
1fb26aca5093 added API for webdav locking
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parents: 207
diff changeset
428 NULL,
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
429 lock);
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
430 lock->path = dav_session_strdup(sn, path);
1fb26aca5093 added API for webdav locking
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parents: 207
diff changeset
431 return 0;
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
432 }
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
433
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
434 UcxList *elm = locks->collection_locks;
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
435 for(;;) {
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
436 DavLock *l = elm->data;
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
437 int cmp = strcmp(path, l->path);
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
438 if(cmp > 0) {
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
439 UcxList *newelm = ucx_list_append_a(sn->mp->allocator, NULL, lock);
1fb26aca5093 added API for webdav locking
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parents: 207
diff changeset
440 lock->path = dav_session_strdup(sn, path);
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
441 insert_lock(sn, elm, newelm);
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
442 } else if(cmp == 0) {
1fb26aca5093 added API for webdav locking
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parents: 207
diff changeset
443 return -1;
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
444 }
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
445
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
446 if(elm->next) {
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
447 elm = elm->next;
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
448 } else {
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
449 UcxList *newelm = ucx_list_append_a(sn->mp->allocator, NULL, lock);
1fb26aca5093 added API for webdav locking
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parents: 207
diff changeset
450 lock->path = dav_session_strdup(sn, path);
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
451 ucx_list_concat(elm, newelm);
1fb26aca5093 added API for webdav locking
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parents: 207
diff changeset
452 break;
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
453 }
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
454 }
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
455
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
456 return 0;
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
457 }
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
458
1fb26aca5093 added API for webdav locking
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 207
diff changeset
459 DavLock* dav_get_lock(DavSession *sn, char *path) {
1fb26aca5093 added API for webdav locking
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diff changeset
460 DavLockManager *locks = sn->locks;
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461
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462 DavLock *lock = ucx_map_cstr_get(locks->resource_locks, path);
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463 if(lock) {
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464 return lock;
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465 }
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466
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467 sstr_t p = sstr(path);
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468 UCX_FOREACH(elm, locks->collection_locks) {
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469 DavLock *cl = elm->data;
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470 int cmd = strcmp(path, cl->path);
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471 if(cmd == 0) {
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472 return cl;
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473 } else if(sstrprefix(p, sstr(cl->path))) {
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474 return cl;
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475 } else if(cmd > 0) {
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476 break;
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477 }
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478 }
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479
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480 return NULL;
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481 }
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482
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483 void dav_remove_lock(DavSession *sn, char *path, DavLock *lock) {
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484 DavLockManager *locks = sn->locks;
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485
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486 if(ucx_map_cstr_remove(locks->resource_locks, path)) {
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487 return;
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488 }
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489
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490 UcxList *rm = NULL;
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491 UCX_FOREACH(elm, locks->collection_locks) {
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492 DavLock *cl = elm->data;
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493 if(cl == lock) {
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494 rm = elm;
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495 break;
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496 }
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497 }
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498
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499 if(rm) {
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500 locks->collection_locks = ucx_list_remove_a(
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501 sn->mp->allocator,
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502 locks->collection_locks,
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503 rm);
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504 }
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505 }

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