src/server/webdav/xml.c

Sat, 03 Dec 2022 16:31:08 +0100

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Sat, 03 Dec 2022 16:31:08 +0100
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permissions
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use separate buffer for chunked transfer encoding, not inbuf

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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 2019 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 <cx/string.h>
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34 #include <cx/map.h>
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35 #include <cx/hash_map.h>
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36 #include <cx/buffer.h>
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37 #include <cx/linked_list.h>
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38
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39 #include "../util/util.h"
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40 #include "../util/pool.h"
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41
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42 #include "xml.h"
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43
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44 /*****************************************************************************
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45 * Utility functions
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46 *****************************************************************************/
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47
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48 /*
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49 * generates a string key for an xml namespace
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50 * format: prefix '\0' href
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51 */
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52 static CxHashKey xml_namespace_key(CxAllocator *a, WSNamespace *ns) {
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53 cxmutstr key_data = cx_strcat_a(a, 3,
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54 ns->prefix ? cx_str((char*)ns->prefix) : cx_strn("\0", 1),
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55 cx_strn("\0", 1),
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56 cx_str((char*)ns->href));
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57 return cx_hash_key_bytes((unsigned char*)key_data.ptr, key_data.length);
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58 }
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59
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60
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61 /*****************************************************************************
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62 * Public functions
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63 *****************************************************************************/
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64
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65 /* ------------------------ wsxml_iterator ------------------------ */
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66
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67 typedef struct StackElm {
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68 WSXmlNode *node; // list of nodes
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69 //WSXmlNode *parent; // if not NULL, call endcb after node->next is NULL
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70 int endonly;
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71 struct StackElm *next;
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72 } StackElm;
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73
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74 #define STACK_PUSH(stack, elm) if(stack) { elm->next = stack; } stack = elm;
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75
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76 int wsxml_iterator(
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77 pool_handle_t *pool,
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78 WSXmlNode *node,
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79 wsxml_func begincb,
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80 wsxml_func endcb,
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81 void *udata)
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82 {
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83 if(!node) {
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84 return 0;
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85 }
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86
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87 StackElm *stack = pool_malloc(pool, sizeof(StackElm));
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88 if(!stack) {
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89 return 1; // OOM
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90 }
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91 stack->next = NULL;
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92 stack->node = node;
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93 stack->endonly = 0;
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94 //stack->parent = NULL;
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95
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96 int ret = 0;
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97 int br = 0;
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98 while(stack) {
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99 StackElm *cur = stack;
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100 WSXmlNode *xmlnode = cur->node; // get top stack element
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101 stack = cur->next; // and remove it
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102 cur->next = NULL;
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103
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104 while(xmlnode && !cur->endonly) {
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105 // element begin callback
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106 if(begincb(xmlnode, udata)) {
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107 br = 1;
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108 break; // I don't like break with labels - is this wrong?
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109 }
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110
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111 if(xmlnode->children) {
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112 // put the children on the stack
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113 // the next stack iteration will process the children
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114 StackElm *newelm = pool_malloc(pool, sizeof(StackElm));
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115 if(!newelm) {
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116 ret = 1;
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117 br = 1;
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118 break;
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119 }
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120 newelm->next = NULL;
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121 newelm->node = xmlnode->children;
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122 // setting the parent will make sure endcb will be called
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123 // for the current xmlnode after all children are processed
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124 //newelm->parent = xmlnode;
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125 newelm->endonly = 0;
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126
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127 // if xmlnode->next is not NULL, there are still nodes at
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128 // this level, therefore we have to put these also on the
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129 // stack
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130 // this way, the remaining nodes are processed after all
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131 // children and the end tag are processed
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132 if(xmlnode->next) {
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133 StackElm *nextelm = pool_malloc(pool, sizeof(StackElm));
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134 if(!nextelm) {
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135 ret = 1;
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136 br = 1;
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137 break;
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138 }
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139 nextelm->node = xmlnode->next;
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140 nextelm->next = NULL;
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141 nextelm->endonly = 0;
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142 STACK_PUSH(stack, nextelm);
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143 }
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144
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145 // we have to put the end tag of the current element
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146 // on the stack to ensure endcb is called for the current
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147 // element, after all children are processed
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148 // reuse cur
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149 cur->node = xmlnode;
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150 cur->endonly = 1;
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151 STACK_PUSH(stack, cur);
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152
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153 cur = NULL;
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154
223
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155 // now we can put the children on the stack
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156 STACK_PUSH(stack, newelm);
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157 // break, because we don't want to process xmlnode->next now
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158 break;
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159 } else {
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160 // no children means, the end callback can be called directly
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161 // after the begin callback (no intermediate nodes)
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162 cur->node = NULL;
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163 if(endcb(xmlnode, udata)) {
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164 br = 1;
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165 break;
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166 }
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167 }
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168
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169 // continue with next node at this level
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170 xmlnode = xmlnode->next;
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171 }
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172 if(br) {
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173 break; // break because of an error
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174 }
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175
224
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176 if(cur && cur->node) {
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177 //xmlNode *endNode = cur->parent ? cur->parent : cur->node;
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178 xmlNode *endNode = cur->node;
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179 if(endcb(endNode, udata)) {
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180 break;
223
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181 }
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182 pool_free(pool, cur);
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183 }
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184 }
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185
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186 // free all remaining elements
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187 StackElm *elm = stack;
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188 while(elm) {
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189 StackElm *next = elm->next;
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190 pool_free(pool, elm);
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191 elm = next;
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192 }
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193
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194 return ret;
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195 }
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196
232
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197 /* ------------------- wsxml_get_required_namespaces ------------------- */
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198
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199 typedef struct WSNsCollector {
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200 CxAllocator *a;
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201 CxMap *nsmap;
225
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202 WebdavNSList *def;
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203 int error;
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204 } WSNsCollector;
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205
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206 static int nslist_node_begin(xmlNode *node, void *userdata) {
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207 WSNsCollector *col = userdata;
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208 // namespace required for all elements
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209 if(node->type == XML_ELEMENT_NODE && node->ns) {
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210 // we create a list of unique prefix-href namespaces by putting
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211 // all namespaces in a map
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212 CxHashKey nskey = xml_namespace_key(col->a, node->ns);
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213 if(!nskey.data.bytes) {
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214 col->error = 1;
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215 return 1;
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216 }
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217 if(cxMapPut(col->nsmap, nskey, node->ns)) {
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218 col->error = 1;
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219 return 1;
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220 }
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221
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222 // collect all namespace definitions for removing these namespaces
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223 // from col->nsmap later
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224 WSNamespace *def = node->nsDef;
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225 while(def) {
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226 WebdavNSList *newdef = cxMalloc(col->a, sizeof(WebdavNSList));
225
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227 if(!newdef) {
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228 col->error = 1;
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229 return 1;
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230 }
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231 newdef->namespace = def;
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232 newdef->prev = NULL;
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233 newdef->next = NULL;
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234 // prepend newdef to the list
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235 if(col->def) {
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236 newdef->next = col->def;
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237 col->def->prev = newdef;
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238 }
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239 col->def = newdef;
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240
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241 // continue with next namespace definition
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242 def = def->next;
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243 }
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244 }
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245 return 0;
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246 }
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247
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248 static int nslist_node_end(xmlNode *node, void *userdata) {
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249 return 0;
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250 }
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251
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252 WebdavNSList* wsxml_get_required_namespaces(
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253 pool_handle_t *pool,
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254 WSXmlNode *node,
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255 int *error)
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256 {
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257 if(error) *error = 0;
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258
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259 CxAllocator *a = pool_allocator(pool);
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260 CxMap *nsmap = cxHashMapCreate(a, 16);
225
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261 if(!nsmap) {
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262 if(error) *error = 1;
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263 return NULL;
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264 }
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265
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266 WSNsCollector col;
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267 col.a = a;
225
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268 col.nsmap = nsmap;
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269 col.def = NULL;
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270
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271 // iterate over all xml elements
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272 // this will fill the hashmap with all namespaces
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273 // all namespace definitions are added to col.def
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274 WebdavNSList *list = NULL;
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275 WebdavNSList *end = NULL;
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276 if(wsxml_iterator(pool, node, nslist_node_begin, nslist_node_end, &col)) {
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277 if(error) *error = 1;
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278 } else {
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279 // remove all namespace definitions from the map
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280 // what we get is a map that contains all missing namespace definitions
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281 WebdavNSList *def = col.def;
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282 while(def) {
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283 CxHashKey nskey = xml_namespace_key(a, def->namespace);
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284 if(!nskey.data.bytes) {
225
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285 if(error) *error = 1;
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286 break;
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287 }
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288 (void)cxMapRemove(nsmap, nskey);
225
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289 def = def->next;
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290 }
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291
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diff changeset
292 // convert nsmap to a list
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293 CxIterator i = cxMapIteratorValues(nsmap);
225
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294 WSNamespace *ns;
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295 cx_foreach(WSNamespace *, ns, i) {
225
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296 WebdavNSList *newelm = pool_malloc(pool, sizeof(WebdavNSList));
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297 if(!newelm) {
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298 if(error) *error = 1;
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299 list = NULL;
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300 break;
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301 }
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302 newelm->namespace = ns;
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diff changeset
303 newelm->next = NULL;
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304 newelm->prev = NULL;
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305 cx_linked_list_add((void**)&list, (void**)&end, offsetof(WebdavNSList, prev), offsetof(WebdavNSList, next), newelm);
225
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306 }
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307 }
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308
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309 cxMapDestroy(nsmap);
225
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310 return list;
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311 }
232
499711b2a970 add xml writer
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312
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313
319
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314 static ssize_t buf_writefunc(void *buf, const char *s, size_t len) {
415
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315 int w = cxBufferWrite(s, 1, len, buf);
318
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316 return w == 0 ? IO_ERROR : w;
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317 }
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318
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319 WSXmlData* wsxml_node2data(
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320 pool_handle_t *pool,
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321 WSXmlNode *node)
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322 {
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323 CxBuffer buf;
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324 if(cxBufferInit(&buf, NULL, 1024, pool_allocator(pool), CX_BUFFER_AUTO_EXTEND|CX_BUFFER_FREE_CONTENTS)) {
318
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325 return NULL;
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326 }
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327
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328 int error = 0;
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329 WebdavNSList *nslist = wsxml_get_required_namespaces(pool, node, &error);
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330 if(error) {
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331 return NULL;
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332 }
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333
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334 Writer writer;
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335 char buffer[512];
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336 writer_init_with_stream(&writer, &buf, buf_writefunc, buffer, 512);
318
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337
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diff changeset
338 WSXmlData *data = NULL;
324
44cf877b3d9f add support for xml properties in propfind/proppatch requests (pg)
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339 if(!wsxml_write_nodes(pool, &writer, NULL, node) && !writer_flush(&writer)) {
318
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340 data = pool_malloc(pool, sizeof(WSXmlData));
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341 if(data) {
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342 data->data = pool_malloc(pool, buf.size + 1);
318
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343 if(data->data) {
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344 memcpy(data->data, buf.space, buf.size);
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345 data->data[buf.size] = '\0';
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diff changeset
346 data->length = buf.size;
318
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347 data->namespaces = nslist;
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348 }
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349 }
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350 }
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351
415
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352 cxBufferDestroy(&buf);
318
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353
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354 return data;
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355 }
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diff changeset
356
319
a9b9344875aa add WebdavNSList <-> string converting functions
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diff changeset
357 char* wsxml_nslist2string(pool_handle_t *pool, WebdavNSList *nslist) {
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358 if(!nslist) return NULL;
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359
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360 // get required string length
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diff changeset
361 size_t len = 0;
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362 WebdavNSList *elm = nslist;
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363 while(elm) {
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diff changeset
364 WSNamespace *ns = elm->namespace;
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diff changeset
365 if(ns) {
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diff changeset
366 if(ns->prefix) len += strlen((const char*)ns->prefix);
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diff changeset
367 if(ns->href) len += strlen((const char*)ns->href);
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diff changeset
368 len += 2; // 1 char for ':', 1 char for \n or \0
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diff changeset
369 }
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diff changeset
370 elm = elm->next;
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diff changeset
371 }
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diff changeset
372
a9b9344875aa add WebdavNSList <-> string converting functions
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diff changeset
373 // alloc string
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diff changeset
374 char *str = pool_malloc(pool, len);
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diff changeset
375 if(!str) {
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376 return NULL;
a9b9344875aa add WebdavNSList <-> string converting functions
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diff changeset
377 }
a9b9344875aa add WebdavNSList <-> string converting functions
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diff changeset
378 char *pos = str;
a9b9344875aa add WebdavNSList <-> string converting functions
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diff changeset
379
a9b9344875aa add WebdavNSList <-> string converting functions
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diff changeset
380 // copy namespace definitions to the string
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diff changeset
381 elm = nslist;
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diff changeset
382 while(elm) {
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diff changeset
383 WSNamespace *ns = elm->namespace;
a9b9344875aa add WebdavNSList <-> string converting functions
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diff changeset
384 if(ns) {
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diff changeset
385 if(ns->prefix) {
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diff changeset
386 size_t prefixlen = strlen((const char*)ns->prefix);
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diff changeset
387 memcpy(pos, ns->prefix, prefixlen);
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diff changeset
388 pos[prefixlen] = ':';
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diff changeset
389 pos += prefixlen + 1;
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diff changeset
390 } else {
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diff changeset
391 pos[0] = ':';
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diff changeset
392 pos++;
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diff changeset
393 }
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diff changeset
394 if(ns->href) {
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diff changeset
395 size_t hreflen = strlen((const char*)ns->href);
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diff changeset
396 memcpy(pos, ns->href, hreflen);
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diff changeset
397 pos[hreflen] = elm->next ? '\n' : '\0';
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diff changeset
398 pos += hreflen + 1;
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diff changeset
399 } else {
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diff changeset
400 pos[0] = elm->next ? '\n' : '\0';
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diff changeset
401 pos++;
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diff changeset
402 }
a9b9344875aa add WebdavNSList <-> string converting functions
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parents: 318
diff changeset
403 }
a9b9344875aa add WebdavNSList <-> string converting functions
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parents: 318
diff changeset
404 elm = elm->next;
a9b9344875aa add WebdavNSList <-> string converting functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 318
diff changeset
405 }
a9b9344875aa add WebdavNSList <-> string converting functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 318
diff changeset
406
a9b9344875aa add WebdavNSList <-> string converting functions
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diff changeset
407 return str;
a9b9344875aa add WebdavNSList <-> string converting functions
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parents: 318
diff changeset
408 }
a9b9344875aa add WebdavNSList <-> string converting functions
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parents: 318
diff changeset
409
a9b9344875aa add WebdavNSList <-> string converting functions
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diff changeset
410 WebdavNSList* wsxml_string2nslist(pool_handle_t *pool, char *nsliststr) {
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diff changeset
411 if(!nsliststr) return NULL;
a9b9344875aa add WebdavNSList <-> string converting functions
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parents: 318
diff changeset
412 size_t len = strlen(nsliststr);
a9b9344875aa add WebdavNSList <-> string converting functions
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parents: 318
diff changeset
413 WebdavNSList *list_start = NULL;
a9b9344875aa add WebdavNSList <-> string converting functions
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parents: 318
diff changeset
414 WebdavNSList *list_current = NULL;
a9b9344875aa add WebdavNSList <-> string converting functions
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parents: 318
diff changeset
415
a9b9344875aa add WebdavNSList <-> string converting functions
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parents: 318
diff changeset
416 char *prefix = nsliststr;
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diff changeset
417 size_t prefix_start = 0;
a9b9344875aa add WebdavNSList <-> string converting functions
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diff changeset
418 size_t prefix_len = 0;
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diff changeset
419 char *href = NULL;
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parents: 318
diff changeset
420 size_t href_start = len;
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parents: 318
diff changeset
421 size_t i;
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diff changeset
422 for(i=0;i<=len;i++) {
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diff changeset
423 char c = nsliststr[i];
a9b9344875aa add WebdavNSList <-> string converting functions
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diff changeset
424 if(c == '\n' || c == '\0') {
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diff changeset
425 if(i > href_start) {
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diff changeset
426 WebdavNSList *elm = pool_malloc(pool, sizeof(WebdavNSList));
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parents: 318
diff changeset
427 if(!elm) {
a9b9344875aa add WebdavNSList <-> string converting functions
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parents: 318
diff changeset
428 break;
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diff changeset
429 }
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diff changeset
430 elm->prev = list_current;
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diff changeset
431 elm->next = NULL;
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diff changeset
432 WSNamespace *ns = pool_malloc(pool, sizeof(WSNamespace));
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diff changeset
433 elm->namespace = ns;
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diff changeset
434 if(!ns) {
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diff changeset
435 break;
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diff changeset
436 }
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diff changeset
437 memset(ns, 0, sizeof(WSNamespace));
415
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diff changeset
438 ns->prefix = prefix_len > 0 ? (xmlChar*)cx_strdup_pool(pool, cx_mutstrn(prefix, prefix_len)).ptr : NULL;
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diff changeset
439 ns->href = (xmlChar*)cx_strdup_pool(pool, cx_mutstrn(href, i-href_start)).ptr;
319
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diff changeset
440 if(list_current) {
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diff changeset
441 list_current->next = elm;
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diff changeset
442 } else {
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diff changeset
443 list_start = elm;
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diff changeset
444 }
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diff changeset
445 list_current = elm;
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diff changeset
446 }
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diff changeset
447 prefix_start = i + 1;
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diff changeset
448 prefix = nsliststr + prefix_start;
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diff changeset
449 prefix_len = 0;
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diff changeset
450 href_start = len;
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diff changeset
451 href = NULL;
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diff changeset
452 } else if(!href && c == ':') {
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diff changeset
453 prefix_len = i - prefix_start;
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diff changeset
454 href_start = i + 1;
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diff changeset
455 href = nsliststr + href_start;
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diff changeset
456 }
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diff changeset
457 }
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diff changeset
458
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diff changeset
459 if(i < len) {
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diff changeset
460 // error, cleanup
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diff changeset
461 while(list_start) {
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462 if(list_start->namespace) {
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463 WSNamespace *ns = list_start->namespace;
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464 if(ns->prefix) {
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465 pool_free(pool, (char*)ns->prefix);
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466 }
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467 if(ns->href) {
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468 pool_free(pool, (char*)ns->href);
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diff changeset
469 }
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diff changeset
470 pool_free(pool, ns);
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diff changeset
471 }
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diff changeset
472 WebdavNSList *next = list_start->next;
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diff changeset
473 pool_free(pool, list_start);
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diff changeset
474 list_start = next;
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diff changeset
475 }
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diff changeset
476 list_start = NULL;
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diff changeset
477 }
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diff changeset
478
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diff changeset
479 return list_start;
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diff changeset
480 }
a9b9344875aa add WebdavNSList <-> string converting functions
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diff changeset
481
232
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diff changeset
482 /*****************************************************************************
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diff changeset
483 * Non public functions
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diff changeset
484 *****************************************************************************/
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diff changeset
485
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diff changeset
486 typedef struct XmlWriter {
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diff changeset
487 /*
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diff changeset
488 * Memory pool for temp memory allocations
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diff changeset
489 */
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diff changeset
490 pool_handle_t *pool;
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diff changeset
491
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diff changeset
492 /*
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diff changeset
493 * Buffered output stream
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diff changeset
494 */
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diff changeset
495 Writer *out;
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diff changeset
496
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diff changeset
497 /*
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diff changeset
498 * Map for all previously defined namespaces
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diff changeset
499 * key: (char*) namespace prefix
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diff changeset
500 * value: WSNamespace*
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diff changeset
501 */
415
d938228c382e switch from ucx 2 to 3
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diff changeset
502 CxMap *namespaces;
232
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diff changeset
503
499711b2a970 add xml writer
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diff changeset
504 /*
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diff changeset
505 * Should namespace definitions be created
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diff changeset
506 */
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diff changeset
507 WSBool define_namespaces;
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diff changeset
508 } XmlWriter;
499711b2a970 add xml writer
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diff changeset
509
499711b2a970 add xml writer
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diff changeset
510 /*
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parents: 225
diff changeset
511 * Serialize an XML text node
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parents: 225
diff changeset
512 * This replaces some special characters with entity refs
233
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parents: 232
diff changeset
513 * type: 0 = element text, 1 = attribute text
232
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diff changeset
514 */
233
c5985d2fc19a add test for webdav_propfind() that checks if the response is valid xml
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 232
diff changeset
515 static void xml_ser_text(Writer *out, int type, const char *text) {
232
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diff changeset
516 size_t start = 0;
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diff changeset
517 size_t i;
415
d938228c382e switch from ucx 2 to 3
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parents: 324
diff changeset
518 cxstring entityref = { NULL, 0 };
232
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parents: 225
diff changeset
519 for(i=0;text[i]!='\0';i++) {
233
c5985d2fc19a add test for webdav_propfind() that checks if the response is valid xml
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 232
diff changeset
520 char c = text[i];
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 232
diff changeset
521 if(c == '&') {
415
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 324
diff changeset
522 entityref = (cxstring)CX_STR("&amp;");
233
c5985d2fc19a add test for webdav_propfind() that checks if the response is valid xml
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parents: 232
diff changeset
523 } else if(type == 0) {
c5985d2fc19a add test for webdav_propfind() that checks if the response is valid xml
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 232
diff changeset
524 if(c == '<') {
415
d938228c382e switch from ucx 2 to 3
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parents: 324
diff changeset
525 entityref = (cxstring)CX_STR("&lt;");
233
c5985d2fc19a add test for webdav_propfind() that checks if the response is valid xml
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 232
diff changeset
526 } else if(c == '>') {
415
d938228c382e switch from ucx 2 to 3
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parents: 324
diff changeset
527 entityref = (cxstring)CX_STR("&gt;");
233
c5985d2fc19a add test for webdav_propfind() that checks if the response is valid xml
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 232
diff changeset
528 }
c5985d2fc19a add test for webdav_propfind() that checks if the response is valid xml
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 232
diff changeset
529 } else {
c5985d2fc19a add test for webdav_propfind() that checks if the response is valid xml
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 232
diff changeset
530 if(c == '\"') {
415
d938228c382e switch from ucx 2 to 3
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parents: 324
diff changeset
531 entityref = (cxstring)CX_STR("&quot;");
233
c5985d2fc19a add test for webdav_propfind() that checks if the response is valid xml
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parents: 232
diff changeset
532 } else if(c == '\'') {
415
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 324
diff changeset
533 entityref = (cxstring)CX_STR("&apos;");
233
c5985d2fc19a add test for webdav_propfind() that checks if the response is valid xml
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parents: 232
diff changeset
534 }
232
499711b2a970 add xml writer
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diff changeset
535 }
233
c5985d2fc19a add test for webdav_propfind() that checks if the response is valid xml
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diff changeset
536
232
499711b2a970 add xml writer
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diff changeset
537 if(entityref.ptr) {
499711b2a970 add xml writer
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diff changeset
538 size_t len = i-start;
499711b2a970 add xml writer
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parents: 225
diff changeset
539 if(len > 0) {
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parents: 225
diff changeset
540 writer_put(out, text+start, len);
499711b2a970 add xml writer
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parents: 225
diff changeset
541 }
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parents: 225
diff changeset
542 writer_puts(out, entityref);
499711b2a970 add xml writer
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diff changeset
543 entityref.ptr = NULL;
499711b2a970 add xml writer
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parents: 225
diff changeset
544 entityref.length = 0;
499711b2a970 add xml writer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 225
diff changeset
545 start = i+1;
499711b2a970 add xml writer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 225
diff changeset
546 }
499711b2a970 add xml writer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 225
diff changeset
547 }
499711b2a970 add xml writer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 225
diff changeset
548 size_t len = i-start;
499711b2a970 add xml writer
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parents: 225
diff changeset
549 if(len > 0) {
499711b2a970 add xml writer
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diff changeset
550 writer_put(out, text+start, len);
499711b2a970 add xml writer
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parents: 225
diff changeset
551 }
499711b2a970 add xml writer
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parents: 225
diff changeset
552 }
499711b2a970 add xml writer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 225
diff changeset
553
499711b2a970 add xml writer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 225
diff changeset
554 /*
499711b2a970 add xml writer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 225
diff changeset
555 * Serialize an XML element node
499711b2a970 add xml writer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 225
diff changeset
556 */
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parents: 225
diff changeset
557 static void xml_ser_element(XmlWriter *xw, xmlNode *node) {
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parents: 225
diff changeset
558 Writer *out = xw->out;
499711b2a970 add xml writer
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diff changeset
559 writer_putc(out, '<');
499711b2a970 add xml writer
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diff changeset
560
499711b2a970 add xml writer
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diff changeset
561 // write prefix and ':'
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parents: 225
diff changeset
562 if(node->ns && node->ns->prefix) {
415
d938228c382e switch from ucx 2 to 3
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diff changeset
563 writer_puts(out, cx_str((char*)node->ns->prefix));
232
499711b2a970 add xml writer
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diff changeset
564 writer_putc(out, ':');
499711b2a970 add xml writer
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parents: 225
diff changeset
565 }
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parents: 225
diff changeset
566
499711b2a970 add xml writer
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diff changeset
567 // node name
415
d938228c382e switch from ucx 2 to 3
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parents: 324
diff changeset
568 writer_puts(out, cx_str((char*)node->name));
232
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diff changeset
569
499711b2a970 add xml writer
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diff changeset
570 // namespace definitions
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diff changeset
571 if(xw->define_namespaces) {
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diff changeset
572 xmlNs *nsdef = node->nsDef;
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diff changeset
573 while(nsdef) {
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parents: 225
diff changeset
574 // we define only namespaces without prefix or namespaces
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diff changeset
575 // with prefix, that are not already defined
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diff changeset
576 // xw->namespaces contains all namespace, that were defined
499711b2a970 add xml writer
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diff changeset
577 // before xml serialization
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parents: 225
diff changeset
578 if(!nsdef->prefix) {
415
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parents: 324
diff changeset
579 writer_put_lit(out, " xmlns=\"");
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parents: 324
diff changeset
580 writer_put_str(out, (char*)nsdef->href);
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parents: 324
diff changeset
581 writer_putc (out, '"');
232
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parents: 225
diff changeset
582 } else {
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parents: 225
diff changeset
583 WSNamespace *n = xw->namespaces ?
415
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parents: 324
diff changeset
584 cxMapGet(xw->namespaces, cx_hash_key_str((const char*)nsdef->prefix)) :
232
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parents: 225
diff changeset
585 NULL;
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parents: 225
diff changeset
586 if(!n) {
415
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parents: 324
diff changeset
587 writer_put_lit(out, " xmlns:");
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parents: 324
diff changeset
588 writer_put_str(out, (const char*)nsdef->prefix);
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parents: 324
diff changeset
589 writer_put_lit(out, "=\"");
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parents: 324
diff changeset
590 writer_put_str(out, (const char*)nsdef->href);
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parents: 324
diff changeset
591 writer_putc (out, '"');
232
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parents: 225
diff changeset
592 }
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parents: 225
diff changeset
593 }
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parents: 225
diff changeset
594
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parents: 225
diff changeset
595 nsdef = nsdef->next;
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parents: 225
diff changeset
596 }
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parents: 225
diff changeset
597 }
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parents: 225
diff changeset
598
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parents: 225
diff changeset
599 // attributes
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parents: 225
diff changeset
600 xmlAttr *attr = node->properties;
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parents: 225
diff changeset
601 while(attr) {
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parents: 225
diff changeset
602 // format: ' [<prefix>:]<name>="<value>"'
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diff changeset
603 writer_putc(out, ' ');
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parents: 225
diff changeset
604 // optional namespace
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parents: 225
diff changeset
605 if(attr->ns && attr->ns->prefix) {
415
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diff changeset
606 writer_puts(out, cx_str((char*)attr->ns->prefix));
232
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parents: 225
diff changeset
607 writer_putc(out, ':');
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parents: 225
diff changeset
608 }
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parents: 225
diff changeset
609 // <name>="
415
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diff changeset
610 writer_put_str(out, (char*)attr->name);
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parents: 324
diff changeset
611 writer_put_lit(out, "=\"");
232
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diff changeset
612 // value
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parents: 225
diff changeset
613 xmlNode *value = attr->children;
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parents: 225
diff changeset
614 while(value) {
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diff changeset
615 if(value->content) {
233
c5985d2fc19a add test for webdav_propfind() that checks if the response is valid xml
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parents: 232
diff changeset
616 xml_ser_text(out, 1, (const char*)value->content);
232
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parents: 225
diff changeset
617 }
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diff changeset
618 value = value->next;
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parents: 225
diff changeset
619 }
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parents: 225
diff changeset
620 // trailing quote
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parents: 225
diff changeset
621 writer_putc(out, '"');
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diff changeset
622
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diff changeset
623 attr = attr->next;
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parents: 225
diff changeset
624 }
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parents: 225
diff changeset
625
499711b2a970 add xml writer
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parents: 225
diff changeset
626 if(node->children) {
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parents: 225
diff changeset
627 writer_putc(out, '>');
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parents: 225
diff changeset
628 } else {
415
d938228c382e switch from ucx 2 to 3
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parents: 324
diff changeset
629 writer_put_lit(out, "/>");
232
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parents: 225
diff changeset
630 }
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parents: 225
diff changeset
631 }
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parents: 225
diff changeset
632
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parents: 225
diff changeset
633 static int xml_ser_node_begin(xmlNode *node, void *userdata) {
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diff changeset
634 XmlWriter *xw = userdata;
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diff changeset
635 switch(node->type) {
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parents: 225
diff changeset
636 case XML_ELEMENT_NODE: xml_ser_element(xw, node); break;
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parents: 225
diff changeset
637 case XML_ATTRIBUTE_NODE: break;
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parents: 225
diff changeset
638 case XML_TEXT_NODE: {
233
c5985d2fc19a add test for webdav_propfind() that checks if the response is valid xml
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parents: 232
diff changeset
639 xml_ser_text(xw->out, 0, (const char*)node->content);
232
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parents: 225
diff changeset
640 break;
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diff changeset
641 }
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diff changeset
642 case XML_CDATA_SECTION_NODE: {
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parents: 225
diff changeset
643 break;
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parents: 225
diff changeset
644 }
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parents: 225
diff changeset
645 case XML_ENTITY_REF_NODE: break;
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parents: 225
diff changeset
646 case XML_ENTITY_NODE: break;
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parents: 225
diff changeset
647 case XML_PI_NODE: break;
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parents: 225
diff changeset
648 case XML_COMMENT_NODE: break;
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parents: 225
diff changeset
649 case XML_DOCUMENT_NODE: break;
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parents: 225
diff changeset
650 case XML_DOCUMENT_TYPE_NODE: break;
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parents: 225
diff changeset
651 case XML_DOCUMENT_FRAG_NODE: break;
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parents: 225
diff changeset
652 case XML_NOTATION_NODE: break;
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parents: 225
diff changeset
653 case XML_HTML_DOCUMENT_NODE: break;
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parents: 225
diff changeset
654 case XML_DTD_NODE: break;
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parents: 225
diff changeset
655 case XML_ELEMENT_DECL: break;
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parents: 225
diff changeset
656 case XML_ATTRIBUTE_DECL: break;
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parents: 225
diff changeset
657 case XML_ENTITY_DECL: break;
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parents: 225
diff changeset
658 case XML_NAMESPACE_DECL: break;
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parents: 225
diff changeset
659 case XML_XINCLUDE_START: break;
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parents: 225
diff changeset
660 case XML_XINCLUDE_END: break;
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parents: 225
diff changeset
661 default: break;
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parents: 225
diff changeset
662 }
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diff changeset
663 return 0;
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parents: 225
diff changeset
664 }
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parents: 225
diff changeset
665
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parents: 225
diff changeset
666 static int xml_ser_node_end(xmlNode *node, void *userdata) {
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diff changeset
667 XmlWriter *xw = userdata;
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diff changeset
668 Writer *out = xw->out;
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diff changeset
669 if(node->type == XML_ELEMENT_NODE) {
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parents: 225
diff changeset
670 if(node->children) {
415
d938228c382e switch from ucx 2 to 3
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diff changeset
671 writer_put_lit(xw->out, "</");
232
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diff changeset
672 // write prefix and ':'
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diff changeset
673 if(node->ns && node->ns->prefix) {
415
d938228c382e switch from ucx 2 to 3
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parents: 324
diff changeset
674 writer_puts(out, cx_str((char*)node->ns->prefix));
232
499711b2a970 add xml writer
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diff changeset
675 writer_putc(out, ':');
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parents: 225
diff changeset
676 }
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parents: 225
diff changeset
677 // name and close tag
415
d938228c382e switch from ucx 2 to 3
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parents: 324
diff changeset
678 writer_puts(out, cx_str((char*)node->name));
232
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parents: 225
diff changeset
679 writer_putc(out, '>');
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parents: 225
diff changeset
680
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parents: 225
diff changeset
681 } // element was already closed in xml_ser_node_begin
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parents: 225
diff changeset
682 }
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diff changeset
683 return 0;
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parents: 225
diff changeset
684 }
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parents: 225
diff changeset
685
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parents: 225
diff changeset
686
499711b2a970 add xml writer
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parents: 225
diff changeset
687 static int xml_write_nodes(
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parents: 225
diff changeset
688 pool_handle_t *pool,
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parents: 225
diff changeset
689 Writer *out,
415
d938228c382e switch from ucx 2 to 3
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parents: 324
diff changeset
690 CxMap *nsdefs,
232
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parents: 225
diff changeset
691 WSBool createdefs,
499711b2a970 add xml writer
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parents: 225
diff changeset
692 xmlNode *node)
499711b2a970 add xml writer
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parents: 225
diff changeset
693 {
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parents: 225
diff changeset
694 XmlWriter xmlwriter;
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 225
diff changeset
695 xmlwriter.pool = pool;
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parents: 225
diff changeset
696 xmlwriter.out = out;
499711b2a970 add xml writer
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 225
diff changeset
697 xmlwriter.namespaces = nsdefs;
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parents: 225
diff changeset
698 xmlwriter.define_namespaces = createdefs;
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parents: 225
diff changeset
699
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 225
diff changeset
700 // iterate over xml nodes
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parents: 225
diff changeset
701 // this includes node->children and node->next
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parents: 225
diff changeset
702 int err = wsxml_iterator(
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parents: 225
diff changeset
703 pool,
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 225
diff changeset
704 node,
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parents: 225
diff changeset
705 xml_ser_node_begin,
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parents: 225
diff changeset
706 xml_ser_node_end,
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parents: 225
diff changeset
707 &xmlwriter);
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parents: 225
diff changeset
708 if(err) {
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parents: 225
diff changeset
709 return -1;
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parents: 225
diff changeset
710 }
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 225
diff changeset
711
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parents: 225
diff changeset
712 return out->error;
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parents: 225
diff changeset
713 }
499711b2a970 add xml writer
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parents: 225
diff changeset
714
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parents: 225
diff changeset
715 int wsxml_write_nodes(
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parents: 225
diff changeset
716 pool_handle_t *pool,
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parents: 225
diff changeset
717 Writer *out,
415
d938228c382e switch from ucx 2 to 3
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parents: 324
diff changeset
718 CxMap *nsdefs,
232
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diff changeset
719 xmlNode *node)
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parents: 225
diff changeset
720 {
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parents: 225
diff changeset
721 return xml_write_nodes(pool, out, nsdefs, TRUE, node);
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parents: 225
diff changeset
722 }
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parents: 225
diff changeset
723
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parents: 225
diff changeset
724 int wsxml_write_nodes_without_nsdef(
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parents: 225
diff changeset
725 pool_handle_t *pool,
499711b2a970 add xml writer
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parents: 225
diff changeset
726 Writer *out,
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 225
diff changeset
727 xmlNode *node)
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parents: 225
diff changeset
728 {
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parents: 225
diff changeset
729 return xml_write_nodes(pool, out, NULL, FALSE, node);
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parents: 225
diff changeset
730 }

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