Fri, 01 Jun 2018 09:23:51 +0200
dav-sync pull applies config tag filter now
also changes, that include/exclude filters never lead to file deletion
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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 2017 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/utils.h> |
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34 | |
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35 | #include "xml.h" |
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36 | |
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37 | static DavXmlNodeType convert_type(xmlElementType type) { |
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38 | DavXmlNodeType ct; |
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39 | switch(type) { |
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40 | default: ct = DAV_XML_NONE; break; |
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41 | case XML_ELEMENT_NODE: ct = DAV_XML_ELEMENT; break; |
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42 | case XML_TEXT_NODE: ct = DAV_XML_TEXT; |
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43 | } |
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44 | return ct; |
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45 | } |
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46 | |
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47 | typedef struct { |
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48 | xmlNode *node; |
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49 | DavXmlNode *parent; |
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50 | } ConvXmlElm; |
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51 | |
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52 | DavXmlNode* dav_convert_xml(DavSession *sn, xmlNode *node) { |
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53 | if(!node) { |
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54 | return NULL; |
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55 | } |
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56 | DavXmlNodeType newnt = convert_type(node->type); |
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57 | if(newnt == DAV_XML_NONE) { |
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58 | return NULL; |
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59 | } |
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60 | |
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61 | UcxMempool *mp = sn->mp; |
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62 | |
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63 | ConvXmlElm *ce = malloc(sizeof(ConvXmlElm)); |
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64 | ce->node = node; |
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65 | ce->parent = NULL; |
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66 | UcxList *stack = ucx_list_prepend(NULL, ce); |
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67 | |
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68 | DavXmlNode *ret = NULL; |
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69 | |
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70 | while(stack) { |
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71 | ConvXmlElm *c = stack->data; |
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72 | stack = ucx_list_remove(stack, stack); |
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73 | |
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74 | xmlNode *n = c->node; |
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75 | DavXmlNode *prev = NULL; |
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76 | while(n) { |
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77 | DavXmlNode *newxn = ucx_mempool_calloc(mp, 1, sizeof(DavXmlNode)); |
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78 | if(!ret) { |
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79 | ret = newxn; |
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80 | } |
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81 | newxn->type = convert_type(n->type); |
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82 | newxn->parent = c->parent; |
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83 | if(c->parent && !c->parent->children) { |
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84 | c->parent->children = newxn; |
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85 | } |
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86 | newxn->prev = prev; |
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87 | if(prev) { |
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88 | prev->next = newxn; |
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89 | } |
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90 | |
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91 | if(newxn->type == DAV_XML_ELEMENT) { |
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92 | newxn->name = dav_session_strdup(sn, (char*)n->name); |
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93 | if(n->ns && n->ns->href) { |
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94 | newxn->namespace = dav_session_strdup(sn, (char*)n->ns->href); |
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95 | } |
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96 | |
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97 | // TODO: copy attributes |
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98 | |
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99 | if(n->children) { |
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100 | ConvXmlElm *convc = malloc(sizeof(ConvXmlElm)); |
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101 | convc->node = n->children; |
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102 | convc->parent = newxn; |
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103 | stack = ucx_list_prepend(stack, convc); |
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104 | } |
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105 | } else if(newxn->type == DAV_XML_TEXT) { |
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106 | sstr_t content = sstrdup_a(mp->allocator, sstr((char*)n->content)); |
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107 | newxn->content = content.ptr; |
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108 | newxn->contentlength = content.length; |
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109 | } |
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110 | |
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111 | prev = newxn; |
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112 | n = n->next; |
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113 | } |
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114 | |
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115 | free(c); |
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116 | } |
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117 | |
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118 | return ret; |
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119 | } |
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120 | |
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121 | void dav_print_xml(DavXmlNode *node) { |
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122 | if(node->type == DAV_XML_ELEMENT) { |
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123 | printf("<%s>", node->name); |
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124 | |
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125 | DavXmlNode *child = node->children; |
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126 | if(child) { |
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127 | dav_print_xml(child); |
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128 | } |
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129 | |
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130 | printf("</%s>", node->name); |
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131 | } else { |
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132 | fwrite(node->content, 1, node->contentlength, stdout); |
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133 | fflush(stdout); |
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134 | } |
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135 | if(node->next) { |
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136 | dav_print_xml(node->next); |
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137 | } |
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138 | } |
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139 | |
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140 | void dav_print_node(void *stream, write_func writef, UcxMap *nsmap, DavXmlNode *node) { |
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141 | while(node) { |
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142 | if(node->type == DAV_XML_ELEMENT) { |
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143 | char *tagend = node->children ? ">" : " />"; |
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144 | char *prefix = NULL; |
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145 | if(node->namespace) { |
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146 | prefix = ucx_map_cstr_get(nsmap, node->namespace); |
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147 | if(!prefix) { |
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148 | sstr_t newpre = ucx_sprintf("x%d", (int)nsmap->count); |
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149 | ucx_map_cstr_put(nsmap, node->namespace, newpre.ptr); |
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150 | prefix = newpre.ptr; |
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151 | ucx_fprintf( |
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152 | stream, |
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153 | writef, |
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154 | "<%s:%s xmlns:%s=\"%s\"%s", |
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155 | prefix, |
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156 | node->name, |
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157 | prefix, |
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158 | node->namespace, |
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159 | tagend); |
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160 | } else { |
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161 | ucx_fprintf(stream, writef, "<%s:%s%s", prefix, node->name, tagend); |
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162 | } |
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163 | } else { |
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164 | ucx_fprintf(stream, writef, "<%s%s", node->name, tagend); |
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165 | } |
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166 | |
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167 | if(node->children) { |
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168 | dav_print_node(stream, writef, nsmap, node->children); |
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169 | if(prefix) { |
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170 | ucx_fprintf(stream, writef, "</%s:%s>", prefix, node->name); |
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171 | } else { |
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172 | ucx_fprintf(stream, writef, "</%s>", node->name); |
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173 | } |
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174 | } |
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175 | } else if(node->type == DAV_XML_TEXT) { |
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176 | writef(node->content, 1, node->contentlength, stream); |
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177 | } |
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178 | |
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179 | node = node->next; |
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180 | } |
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181 | } |
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182 | |
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183 | /* ------------------------- public API ------------------------- */ |
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184 | |
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185 | char* dav_xml_getstring(DavXmlNode *node) { |
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186 | if(node && node->type == DAV_XML_TEXT) { |
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187 | return node->content; |
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188 | } else { |
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189 | return NULL; |
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190 | } |
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191 | } |
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192 | |
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193 | DavBool dav_xml_isstring(DavXmlNode *node) { |
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194 | if(node && node->type == DAV_XML_TEXT && !node->next) { |
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195 | return TRUE; |
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196 | } else { |
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197 | return FALSE; |
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198 | } |
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199 | } |
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200 | |
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201 | DavXmlNode* dav_xml_nextelm(DavXmlNode *node) { |
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202 | node = node->next; |
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203 | while(node) { |
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204 | if(node->type == DAV_XML_ELEMENT) { |
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205 | return node; |
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206 | } |
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207 | node = node->next; |
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208 | } |
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209 | return NULL; |
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210 | } |
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211 | |
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212 | DavXmlNode* dav_text_node(DavSession *sn, char *text) { |
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213 | UcxMempool *mp = sn->mp; |
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214 | DavXmlNode *newxn = ucx_mempool_calloc(mp, 1, sizeof(DavXmlNode)); |
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215 | newxn->type = DAV_XML_TEXT; |
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216 | sstr_t content = sstrdup_a(mp->allocator, sstr(text)); |
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217 | newxn->content = content.ptr; |
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218 | newxn->contentlength = content.length; |
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219 | return newxn; |
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220 | } |
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221 | |
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222 | |
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223 | |
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224 | |
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225 | DavXmlNode* dav_copy_node(DavXmlNode *node) { |
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226 | DavXmlNode *ret = NULL; |
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227 | DavXmlNode *prev = NULL; |
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228 | while(node) { |
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229 | DavXmlNode *copy = calloc(1, sizeof(DavXmlNode)); |
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230 | copy->type = node->type; |
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231 | if(node->type == DAV_XML_ELEMENT) { |
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232 | copy->namespace = strdup(node->namespace); |
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233 | copy->name = strdup(node->name); |
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234 | copy->children = dav_copy_node(node->children); |
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235 | } else { |
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236 | copy->contentlength = node->contentlength; |
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237 | copy->content = malloc(node->contentlength+1); |
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238 | memcpy(copy->content, node->content, node->contentlength); |
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239 | copy->content[copy->contentlength] = 0; |
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240 | } |
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241 | if(!ret) { |
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242 | ret = copy; |
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243 | } |
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244 | if(prev) { |
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245 | prev->next = copy; |
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246 | copy->prev = prev; |
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247 | } |
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248 | prev = copy; |
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249 | node = node->next; |
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250 | } |
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251 | return ret; |
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252 | } |
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253 | |
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254 | |
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255 | DavXmlNode* dav_xml_createnode(const char *ns, const char *name) { |
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256 | DavXmlNode *node = calloc(1, sizeof(DavXmlNode)); |
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257 | node->type = DAV_XML_ELEMENT; |
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258 | node->namespace = strdup(ns); |
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259 | node->name = strdup(name); |
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260 | return node; |
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261 | } |
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262 | |
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263 | DavXmlNode* dav_xml_createnode_with_text(const char *ns, const char *name, const char *text) { |
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264 | DavXmlNode *node = calloc(1, sizeof(DavXmlNode)); |
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265 | node->type = DAV_XML_ELEMENT; |
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266 | node->namespace = strdup(ns); |
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267 | node->name = strdup(name); |
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268 | |
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269 | DavXmlNode *textnode = dav_xml_createtextnode(text); |
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270 | node->children = textnode; |
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271 | |
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272 | return node; |
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273 | } |
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274 | |
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275 | DavXmlNode* dav_xml_createtextnode(const char *text) { |
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276 | DavXmlNode *node = calloc(1, sizeof(DavXmlNode)); |
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277 | node->type = DAV_XML_TEXT; |
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278 | sstr_t content = sstrdup(sstr((char*)text)); |
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279 | node->content = content.ptr; |
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280 | node->contentlength = content.length; |
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281 | return node; |
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282 | } |
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283 | |
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284 | void dav_xml_add_child(DavXmlNode *node, DavXmlNode *child) { |
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285 | DavXmlNode *last_child = NULL; |
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286 | DavXmlNode *c = node->children; |
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287 | while(c) { |
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288 | last_child = c; |
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289 | c = c->next; |
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290 | } |
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291 | if(last_child) { |
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292 | last_child->next = child; |
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293 | child->prev = last_child; |
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294 | } else { |
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295 | node->children = child; |
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296 | } |
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297 | } |
371
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298 | |
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299 | DavXmlNode* dav_parse_xml(DavSession *sn, const char *str, size_t len) { |
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300 | xmlDoc *doc = xmlReadMemory(str, len, NULL, NULL, 0); |
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301 | if(!doc) { |
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302 | return NULL; |
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303 | } |
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304 | xmlNode *xml_root = xmlDocGetRootElement(doc); |
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305 | if(!xml_root) { |
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306 | xmlFreeDoc(doc); |
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307 | return NULL; |
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308 | } |
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309 | DavXmlNode *x = dav_convert_xml(sn, xml_root); |
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310 | xmlFreeDoc(doc); |
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311 | return x; |
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312 | } |