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1 | /* |
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2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. |
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3 | * |
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4 | * Copyright 2016 Olaf Wintermann. All rights reserved. |
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5 | * |
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6 | * Redistribution and use in source and binary forms, with or without |
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7 | * modification, are permitted provided that the following conditions are met: |
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8 | * |
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9 | * 1. Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * |
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12 | * 2. Redistributions in binary form must reproduce the above copyright |
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13 | * notice, this list of conditions and the following disclaimer in the |
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14 | * documentation and/or other materials provided with the distribution. |
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15 | * |
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16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
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20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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26 | * POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |
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29 | #include <stdio.h> |
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30 | #include <stdlib.h> |
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31 | #include <string.h> |
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32 | #include <errno.h> |
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33 | #include <libidav/utils.h> |
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34 | #include <ucx/map.h> |
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35 | |
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36 | #include "scfg.h" |
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37 | |
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38 | #define xstreq(a,b) xmlStrEqual(BAD_CAST a, BAD_CAST b) |
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39 | |
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40 | #ifdef _WIN32 |
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41 | #define ENV_HOME getenv("USERPROFILE") |
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42 | #else |
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43 | #define ENV_HOME getenv("HOME") |
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44 | #endif /* _WIN32 */ |
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45 | |
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46 | static UcxMap *directories; |
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47 | |
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48 | int load_sync_config() { |
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49 | char *file = util_concat_path(ENV_HOME, ".dav/sync.xml"); |
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50 | xmlDoc *doc = xmlReadFile(file, NULL, 0); |
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51 | if(!doc) { |
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52 | fprintf(stderr, "Missing or broken configuration file\n"); |
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53 | scfg_print_example(); |
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54 | return -1; |
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55 | } |
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56 | |
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57 | directories = ucx_map_new(8); |
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58 | |
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59 | int ret = 0; |
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60 | xmlNode *node = xmlDocGetRootElement(doc)->children; |
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61 | while(node) { |
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62 | if(node->type == XML_ELEMENT_NODE) { |
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63 | if(xstreq(node->name, "directory")) { |
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64 | if(scfg_load_directory(node)) { |
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65 | ret = 1; |
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66 | ucx_map_free(directories); |
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67 | break; |
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68 | } |
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69 | } |
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70 | } |
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71 | node = node->next; |
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72 | } |
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73 | |
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74 | xmlFreeDoc(doc); |
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75 | |
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76 | return ret; |
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77 | } |
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78 | |
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79 | static UcxList* add_regex_pattern(UcxList *list, char *value) { |
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80 | regex_t *regex = malloc(sizeof(regex_t)); |
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81 | if (regcomp(regex, value, REG_EXTENDED|REG_NOSUB)) { |
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82 | fprintf(stderr, "Invalid regular expression (%s) ... skipped\n", value); |
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83 | return list; |
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84 | } else { |
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85 | return ucx_list_append(list, regex); |
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86 | } |
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87 | } |
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88 | |
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89 | int scfg_load_directory(xmlNode *node) { |
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90 | char *name = NULL; |
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91 | char *path = NULL; |
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92 | char *trash = NULL; |
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93 | char *collection = NULL; |
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94 | char *repository = NULL; |
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95 | char *database = NULL; |
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96 | UcxList *include = NULL; |
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97 | UcxList *exclude = NULL; |
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98 | int max_retry = DAV_MAX_RETRY; |
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99 | bool backuppull = false; |
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100 | |
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101 | node = node->children; |
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102 | while(node) { |
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103 | if(node->type == XML_ELEMENT_NODE) { |
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104 | char *value = util_xml_get_text(node); |
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105 | if(!value) { |
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106 | // next |
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107 | } else if(xstreq(node->name, "name")) { |
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108 | name = value; |
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109 | } else if(xstreq(node->name, "path")) { |
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110 | path = value; |
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111 | } else if(xstreq(node->name, "trash")) { |
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112 | trash = value; |
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113 | } else if(xstreq(node->name, "collection")) { |
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114 | collection = value; |
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115 | } else if(xstreq(node->name, "repository")) { |
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116 | repository = value; |
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117 | } else if(xstreq(node->name, "database")) { |
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118 | database = value; |
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119 | } else if(xstreq(node->name, "include")) { |
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120 | include = add_regex_pattern(include, value); |
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121 | } else if(xstreq(node->name, "exclude")) { |
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122 | exclude = add_regex_pattern(exclude, value); |
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123 | } else if(xstreq(node->name, "max-retry")) { |
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124 | int64_t i; |
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125 | if(util_strtoint(value, &i)) { |
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126 | max_retry = (int)i; |
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127 | } else { |
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128 | fprintf(stderr, "Warnung: sync.xml: integer value " |
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129 | "expected in <max-retry> element\n"); |
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130 | } |
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131 | } else if(xstreq(node->name, "backup-on-pull")) { |
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132 | backuppull = util_getboolean(value); |
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133 | } |
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134 | } |
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135 | node = node->next; |
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136 | } |
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137 | |
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138 | if(!name) { |
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139 | fprintf(stderr, "Missing name element for directory\n"); |
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140 | return -1; |
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141 | } |
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142 | if(!path) { |
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143 | fprintf(stderr, "Missing path element for directory\n"); |
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144 | return -1; |
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145 | } |
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146 | if(!repository) { |
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147 | fprintf(stderr, "Missing repository element for directory\n"); |
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148 | return -1; |
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149 | } |
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150 | if(!database) { |
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151 | fprintf(stderr, "Missing database element for directory\n"); |
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152 | return -1; |
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153 | } |
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154 | |
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155 | SyncDirectory *dir = malloc(sizeof(SyncDirectory)); |
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156 | dir->name = strdup(name); |
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157 | dir->path = strdup(path); |
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158 | dir->collection = collection ? strdup(collection) : NULL; |
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159 | dir->repository = strdup(repository); |
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160 | dir->database = strdup(database); |
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161 | dir->max_retry = max_retry; |
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162 | dir->backuppull = backuppull; |
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163 | if (include) { |
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164 | dir->include = include; |
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165 | } else { |
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166 | regex_t *matchall = malloc(sizeof(regex_t)); |
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167 | regcomp(matchall, ".*", REG_NOSUB); |
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168 | dir->include = ucx_list_append(NULL, matchall); |
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169 | } |
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170 | if (exclude) { |
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171 | dir->exclude = exclude; |
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172 | } else { |
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173 | regex_t *matchnothing = malloc(sizeof(regex_t)); |
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174 | regcomp(matchnothing, "///", REG_NOSUB); |
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175 | dir->exclude = ucx_list_append(NULL, matchnothing); |
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176 | } |
66 | 177 | |
178 | if (trash && sstrtrim(sstr(trash)).length > 0) { | |
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179 | if (trash[0] == '/') { |
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180 | dir->trash = strdup(trash); |
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181 | } else { |
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182 | char *t = util_concat_path(path, trash); |
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183 | dir->trash = util_concat_path(t, "/"); |
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184 | free(t); |
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185 | } |
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186 | |
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187 | // create trash directory |
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188 | mode_t mode = S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH; |
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189 | if (util_mkdir(dir->trash, mode)) { |
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190 | if (errno != EEXIST) { |
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191 | fprintf(stderr, "Cannot create trash directory: %s\n", dir->trash); |
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192 | } |
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193 | } |
66 | 194 | } else { |
195 | dir->trash = NULL; | |
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196 | } |
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197 | |
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198 | ucx_map_cstr_put(directories, name, dir); |
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199 | |
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200 | return 0; |
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201 | } |
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202 | |
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203 | void scfg_print_example() { |
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204 | fprintf(stderr, |
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205 | "example sync.xml\n\n" |
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206 | "<?xml version=\"1.0\" encoding=\"UTF-8\" ?>\n" |
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207 | "<configuration>\n" |
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208 | " <directory>\n" |
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209 | " <!-- identifier -->\n" |
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210 | " <name>documents</name>\n\n" |
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211 | " <!-- local path to the directory -->\n" |
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212 | " <path>/home/user/Documents</path>\n\n" |
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213 | " <!-- optional trash path -->\n" |
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214 | " <trash>.trash</trash>" |
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215 | " <!-- repository name specified in config.xml -->\n" |
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216 | " <repository>server</repository>\n\n" |
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217 | " <!-- collection to synchronize (optional) -->\n" |
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218 | " <collection>somecol</collection>\n\n" |
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219 | " <!-- database file name -->\n" |
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220 | " <database>documents-db.xml</database>\n" |
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221 | " </directory>\n" |
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222 | "</configuration>\n"); |
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223 | } |
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224 | |
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225 | SyncDirectory* scfg_get_dir(char *name) { |
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226 | return ucx_map_cstr_get(directories, name); |
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227 | } |