src/server/webdav/saxhandler.cpp

Sat, 12 Jan 2013 14:00:47 +0100

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Sat, 12 Jan 2013 14:00:47 +0100
changeset 46
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parent 44
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child 48
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permissions
-rw-r--r--

cleaning up resources after requests

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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 2013 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/string.h"
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34 #include "../ucx/dlist.h"
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35 #include "../util/pool.h"
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36
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37 #include "saxhandler.h"
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38
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39 using namespace std;
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40
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41 void xstack_push(UcxDlist **stack, XmlElement *elm) {
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42 *stack = ucx_dlist_prepend(*stack, elm);
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43 }
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44
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45 XmlElement* xstack_pop(UcxDlist **stack) {
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46 if(*stack == NULL) {
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47 return NULL;
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48 }
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49 XmlElement* ret = (XmlElement*)(*stack)->data;
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50 UcxDlist *newstack = ucx_dlist_remove(*stack, *stack);
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51 *stack = newstack;
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52 return ret;
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53 }
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55
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56
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57 PropfindHandler::PropfindHandler(PropfindRequest *rq, pool_handle_t *p) {
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58 davrq = rq;
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59 pool = p;
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60
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61 davPropTag = false;
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62 property = NULL;
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63 }
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64
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65 PropfindHandler::~PropfindHandler() {
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66
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67 }
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68
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69 void PropfindHandler::startElement(
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70 const XMLCh *const uri,
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71 const XMLCh* const localname,
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72 const XMLCh* const qname,
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73 const Attributes& attrs)
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74 {
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75 char *ns = XMLString::transcode(uri);
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76 char *name = XMLString::transcode(localname);
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77
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78 if(!strcmp(ns, "DAV:") && !strcmp(name, "prop")) {
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79 davPropTag = true;
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80 } else if(davPropTag && property == NULL) {
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81 //property = (DavProperty*)pool_malloc(pool, sizeof(DavProperty));
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82 property = (DavProperty*)malloc(sizeof(DavProperty));
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83 /* Ultra TODO: pool_malloc makes big mistakes!! */
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84
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85 size_t nslen = strlen(ns);
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86 size_t namelen = strlen(name);
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87 if(nslen > 0) {
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88 property->xmlns = (char*)pool_malloc(pool, nslen + 1);
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89 property->xmlns[nslen] = 0;
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90 memcpy(property->xmlns, ns, nslen);
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91 } else {
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92 property->xmlns = NULL;
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93 }
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94
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95 if(namelen > 0) {
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96 property->name = (char*)pool_malloc(pool, namelen + 1);
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97 property->name[namelen] = 0;
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98 memcpy(property->name, name, namelen);
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99 } else {
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100 property->name = NULL;
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101 }
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102 }
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103
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104 XMLString::release(&ns);
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105 XMLString::release(&name);
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106 }
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107
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108
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109 void PropfindHandler::endElement(
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110 const XMLCh* const uri,
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111 const XMLCh* const localname,
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112 const XMLCh* const qname)
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113 {
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114 char *ns = XMLString::transcode(uri);
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115 char *name = XMLString::transcode(localname);
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116
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117 if(property != NULL) {
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118 const char *xmlns = (property->xmlns) ? property->xmlns : "";
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119
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120 if(!strcmp(ns, xmlns) && !strcmp(name, property->name)) {
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121 // add property to DavRequest
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122 UcxDlist *elm = (UcxDlist*)pool_malloc(pool, sizeof(UcxDlist));
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123 elm->prev = NULL;
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124 elm->next = NULL;
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125 elm->data = property;
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126 //printf("saxhandler: add property: {%s}\n", property->name);
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127 davrq->properties = ucx_dlist_concat(davrq->properties, elm);
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128
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129 property = NULL;
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130 }
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131 }
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132
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133 XMLString::release(&ns);
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134 XMLString::release(&name);
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135 }
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136
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137 void PropfindHandler::startDocument() {
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138
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139 }
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140
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141 void PropfindHandler::endDocument() {
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142
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143 }
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144
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145
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146 /************* PropPatch Handler **************/
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147
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148 ProppatchHandler::ProppatchHandler(ProppatchRequest *rq, pool_handle_t *p) {
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149 davrq = rq;
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150 pool = p;
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151
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152 davPropTag = false;
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153 rootElement = NULL;
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154 xmlStack = NULL;
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155 newElement = NULL;
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156
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157 updateMode = -1;
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158 }
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159
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160 ProppatchHandler::~ProppatchHandler() {
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161
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162 }
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163
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164 void ProppatchHandler::startElement(
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165 const XMLCh *const uri,
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166 const XMLCh* const localname,
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167 const XMLCh* const qname,
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168 const Attributes& attrs)
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169 {
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170 char *ns = XMLString::transcode(uri);
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171 char *name = XMLString::transcode(localname);
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172
30
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173 if(!strcmp(ns, "DAV:") && !strcmp(name, "set")) {
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174 updateMode = 0;
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175 } else if(!strcmp(ns, "DAV:") && !strcmp(name, "remove")) {
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176 updateMode = 1;
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177 } else if(!strcmp(ns, "DAV:") && !strcmp(name, "prop")) {
29
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178 davPropTag = true;
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179 } else if(davPropTag) {
30
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180 newElement = (XmlElement*)pool_calloc(pool, 1, sizeof(XmlElement));
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181 newElement->name = sstr(pool_strdup(pool, name));
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182 newElement->xmlns = xmlnsmap_put(davrq->nsmap, ns);
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183
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184 /*
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185 * the xml stack manages the xml hierarchy
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186 * new elements will be added to the top element on the stack
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187 */
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188
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189 XmlElement *currentElm = XSTACK_CUR();
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190 if(currentElm) {
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191 xmlelm_add_child(currentElm, newElement);
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192 }
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193
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194 /* newElement is now the parent for future elements */
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195 XSTACK_PUSH(newElement);
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196
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197 /* if the root element isn't set, the first new element is the root */
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198 if(!rootElement) {
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199 rootElement = newElement;
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200 }
29
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201 }
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202
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203 XMLString::release(&ns);
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204 XMLString::release(&name);
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205 }
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206
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207
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208 void ProppatchHandler::endElement(
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209 const XMLCh* const uri,
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210 const XMLCh* const localname,
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211 const XMLCh* const qname)
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212 {
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213 char *ns = XMLString::transcode(uri);
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214 char *name = XMLString::transcode(localname);
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215
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216 if(!strcmp(ns, "DAV:") && !strcmp(name, "set")) {
30
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217 updateMode = -1;
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218 } else if(!strcmp(ns, "DAV:") && !strcmp(name, "remove")) {
30
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219 updateMode = -1;
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220 } else if(!strcmp(ns, "DAV:") && !strcmp(name, "prop")) {
30
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221 davPropTag = false;
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222 } else if(davPropTag) {
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223 XmlElement *elm = XSTACK_POP();
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224 if(xmlStack == NULL) {
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225 /* property complete */
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226
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227 /*
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228 XmlElement *r = rootElement;
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229 printf("<%s>\n", sstrdup(r->name).ptr);
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230 printf("%s\n", r->content);
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231 printf("</%s>\n", sstrdup(r->name).ptr);
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232 */
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233
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234 /* add the property to the proppatch request */
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235 switch(updateMode) {
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236 case 0: {
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237 davrq->setProps = ucx_dlist_append(
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238 davrq->setProps,
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239 rootElement);
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240 break;
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241 }
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diff changeset
242 case 1: {
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243 davrq->removeProps = ucx_dlist_append(
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244 davrq->removeProps,
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245 rootElement);
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246 break;
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247 }
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248 }
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249
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diff changeset
250 rootElement = NULL;
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251
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252 }
29
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253 }
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254
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255
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256 XMLString::release(&ns);
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257 XMLString::release(&name);
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258 }
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259
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260 void ProppatchHandler::characters(
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261 const XMLCh *const chars,
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262 const XMLSize_t length)
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263 {
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diff changeset
264
30
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diff changeset
265 XMLString::trim((XMLCh *const)chars);
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diff changeset
266 if(chars[0] == 0) {
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267 return;
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268 }
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269
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270 XmlElement *currentElm = XSTACK_CUR();
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diff changeset
271 if(currentElm) {
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diff changeset
272 xmlch_t *str = (xmlch_t*)pool_calloc(pool, sizeof(xmlch_t), length + 1);
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diff changeset
273 for(int i=0;i<length;i++) {
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274 str[i] = chars[i];
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275 }
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276
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277 currentElm->content = str;
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diff changeset
278 currentElm->ctlen = length;
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279 }
29
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280 }
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281
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282 void ProppatchHandler::startDocument() {
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283
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284 }
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285
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286 void ProppatchHandler::endDocument() {
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287
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288 }
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parents: 25
diff changeset
289

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