obt/xml.c (raw)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 |
/* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*- obt/xml.c for the Openbox window manager Copyright (c) 2003-2007 Dana Jansens This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. See the COPYING file for a copy of the GNU General Public License. */ #include "obt/xml.h" #include "obt/paths.h" #include <libxml/xinclude.h> #include <glib.h> #ifdef HAVE_STDLIB_H # include <stdlib.h> #endif #ifdef HAVE_SYS_STAT_H # include <sys/stat.h> #endif #ifdef HAVE_SYS_TYPES_H # include <sys/types.h> #endif #ifdef HAVE_UNISTD_H # include <unistd.h> #endif struct Callback { gchar *tag; ObtXmlCallback func; gpointer data; }; struct _ObtXmlInst { gint ref; ObtPaths *xdg_paths; GHashTable *callbacks; xmlDocPtr doc; xmlNodePtr root; gchar *path; }; static void destfunc(struct Callback *c) { g_free(c->tag); g_slice_free(struct Callback, c); } ObtXmlInst* obt_xml_instance_new(void) { ObtXmlInst *i = g_slice_new(ObtXmlInst); i->ref = 1; i->xdg_paths = obt_paths_new(); i->callbacks = g_hash_table_new_full(g_str_hash, g_str_equal, NULL, (GDestroyNotify)destfunc); i->doc = NULL; i->root = NULL; i->path = NULL; return i; } void obt_xml_instance_ref(ObtXmlInst *i) { ++i->ref; } void obt_xml_instance_unref(ObtXmlInst *i) { if (i && --i->ref == 0) { obt_paths_unref(i->xdg_paths); g_hash_table_destroy(i->callbacks); g_slice_free(ObtXmlInst, i); } } xmlDocPtr obt_xml_doc(ObtXmlInst *i) { g_assert(i->doc); /* a doc is open? */ return i->doc; } xmlNodePtr obt_xml_root(ObtXmlInst *i) { g_assert(i->doc); /* a doc is open? */ return i->root; } void obt_xml_register(ObtXmlInst *i, const gchar *tag, ObtXmlCallback func, gpointer data) { struct Callback *c; if (g_hash_table_lookup(i->callbacks, tag)) { g_error("Tag '%s' already registered", tag); return; } c = g_slice_new(struct Callback); c->tag = g_strdup(tag); c->func = func; c->data = data; g_hash_table_insert(i->callbacks, c->tag, c); } static gboolean load_file(ObtXmlInst *i, const gchar *domain, const gchar *filename, const gchar *root_node, GSList *paths) { GSList *it; gboolean r = FALSE; g_assert(i->doc == NULL); /* another doc isn't open already? */ for (it = paths; !r && it; it = g_slist_next(it)) { gchar *path; struct stat s; if (!domain && !filename) /* given a full path to the file */ path = g_strdup(it->data); else path = g_build_filename(it->data, domain, filename, NULL); if (stat(path, &s) >= 0) { /* XML_PARSE_BLANKS is needed apparently, or the tree can end up with extra nodes in it. */ i->doc = xmlReadFile(path, NULL, (XML_PARSE_NOBLANKS | XML_PARSE_RECOVER)); xmlXIncludeProcessFlags(i->doc, (XML_PARSE_NOBLANKS | XML_PARSE_RECOVER)); if (i->doc) { i->root = xmlDocGetRootElement(i->doc); if (!i->root) { xmlFreeDoc(i->doc); i->doc = NULL; g_message("%s is an empty XML document", path); } else if (xmlStrcmp(i->root->name, (const xmlChar*)root_node)) { xmlFreeDoc(i->doc); i->doc = NULL; i->root = NULL; g_message("XML document %s is of wrong type. Root " "node is not '%s'", path, root_node); } else { i->path = g_strdup(path); r = TRUE; /* ok! */ } } } g_free(path); } return r; } gboolean obt_xml_load_file(ObtXmlInst *i, const gchar *path, const gchar *root_node) { GSList *paths; gboolean r; paths = g_slist_append(NULL, g_strdup(path)); r = load_file(i, NULL, NULL, root_node, paths); while (paths) { g_free(paths->data); paths = g_slist_delete_link(paths, paths); } return r; } gboolean obt_xml_load_config_file(ObtXmlInst *i, const gchar *domain, const gchar *filename, const gchar *root_node) { GSList *it, *paths = NULL; gboolean r; for (it = obt_paths_config_dirs(i->xdg_paths); it; it = g_slist_next(it)) paths = g_slist_append(paths, g_strdup(it->data)); r = load_file(i, domain, filename, root_node, paths); while (paths) { g_free(paths->data); paths = g_slist_delete_link(paths, paths); } return r; } gboolean obt_xml_load_data_file(ObtXmlInst *i, const gchar *domain, const gchar *filename, const gchar *root_node) { GSList *it, *paths = NULL; gboolean r; for (it = obt_paths_data_dirs(i->xdg_paths); it; it = g_slist_next(it)) paths = g_slist_append(paths, g_strdup(it->data)); r = load_file(i, domain, filename, root_node, paths); while (paths) { g_free(paths->data); paths = g_slist_delete_link(paths, paths); } return r; } gboolean obt_xml_load_theme_file(ObtXmlInst *i, const gchar *theme, const gchar *domain, const gchar *filename, const gchar *root_node) { GSList *it, *paths = NULL; gboolean r; /* use ~/.themes for backwards compatibility */ paths = g_slist_append (paths, g_build_filename(g_get_home_dir(), ".themes", theme, NULL)); for (it = obt_paths_data_dirs(i->xdg_paths); it; it = g_slist_next(it)) paths = g_slist_append (paths, g_build_filename(it->data, "themes", theme, NULL)); r = load_file(i, domain, filename, root_node, paths); while (paths) { g_free(paths->data); paths = g_slist_delete_link(paths, paths); } return r; } gboolean obt_xml_load_mem(ObtXmlInst *i, gpointer data, guint len, const gchar *root_node) { gboolean r = FALSE; g_assert(i->doc == NULL); /* another doc isn't open already? */ i->doc = xmlParseMemory(data, len); if (i) { i->root = xmlDocGetRootElement(i->doc); if (!i->root) { xmlFreeDoc(i->doc); i->doc = NULL; g_message("Given memory is an empty document"); } else if (xmlStrcmp(i->root->name, (const xmlChar*)root_node)) { xmlFreeDoc(i->doc); i->doc = NULL; i->root = NULL; g_message("XML Document in given memory is of wrong " "type. Root node is not '%s'\n", root_node); } else r = TRUE; /* ok ! */ } return r; } gboolean obt_xml_save_file(ObtXmlInst *inst, const gchar *path, gboolean pretty) { return xmlSaveFormatFile(path, inst->doc, pretty) != -1; } void obt_xml_close(ObtXmlInst *i) { if (i && i->doc) { xmlFreeDoc(i->doc); g_free(i->path); i->doc = NULL; i->root = NULL; i->path = NULL; } } void obt_xml_tree(ObtXmlInst *i, xmlNodePtr node) { g_assert(i->doc); /* a doc is open? */ while (node) { if (node->name) { struct Callback *c = g_hash_table_lookup(i->callbacks, node->name); if (c) c->func(node, c->data); } node = node->next; } } void obt_xml_tree_from_root(ObtXmlInst *i) { obt_xml_tree(i, i->root->children); } gchar *obt_xml_node_string(xmlNodePtr node) { xmlChar *c = xmlNodeGetContent(node); gchar *s; if (c) g_strstrip((char*)c); /* strip leading/trailing whitespace */ s = g_strdup(c ? (gchar*)c : ""); xmlFree(c); return s; } gint obt_xml_node_int(xmlNodePtr node) { xmlChar *c = xmlNodeGetContent(node); gint i; if (c) g_strstrip((char*)c); /* strip leading/trailing whitespace */ i = c ? atoi((gchar*)c) : 0; xmlFree(c); return i; } gboolean obt_xml_node_bool(xmlNodePtr node) { xmlChar *c = xmlNodeGetContent(node); gboolean b = FALSE; if (c) g_strstrip((char*)c); /* strip leading/trailing whitespace */ if (c && !xmlStrcasecmp(c, (const xmlChar*) "true")) b = TRUE; else if (c && !xmlStrcasecmp(c, (const xmlChar*) "yes")) b = TRUE; else if (c && !xmlStrcasecmp(c, (const xmlChar*) "on")) b = TRUE; xmlFree(c); return b; } gboolean obt_xml_node_contains(xmlNodePtr node, const gchar *val) { xmlChar *c = xmlNodeGetContent(node); gboolean r; if (c) g_strstrip((char*)c); /* strip leading/trailing whitespace */ r = !xmlStrcasecmp(c, (const xmlChar*) val); xmlFree(c); return r; } xmlNodePtr obt_xml_find_node(xmlNodePtr node, const gchar *tag) { while (node) { if (!xmlStrcmp(node->name, (const xmlChar*) tag)) return node; node = node->next; } return NULL; } gboolean obt_xml_attr_bool(xmlNodePtr node, const gchar *name, gboolean *value) { xmlChar *c = xmlGetProp(node, (const xmlChar*) name); gboolean r = FALSE; if (c) { g_strstrip((char*)c); /* strip leading/trailing whitespace */ if (!xmlStrcasecmp(c, (const xmlChar*) "true")) *value = TRUE, r = TRUE; else if (!xmlStrcasecmp(c, (const xmlChar*) "yes")) *value = TRUE, r = TRUE; else if (!xmlStrcasecmp(c, (const xmlChar*) "on")) *value = TRUE, r = TRUE; else if (!xmlStrcasecmp(c, (const xmlChar*) "false")) *value = FALSE, r = TRUE; else if (!xmlStrcasecmp(c, (const xmlChar*) "no")) *value = FALSE, r = TRUE; else if (!xmlStrcasecmp(c, (const xmlChar*) "off")) *value = FALSE, r = TRUE; } xmlFree(c); return r; } gboolean obt_xml_attr_int(xmlNodePtr node, const gchar *name, gint *value) { xmlChar *c = xmlGetProp(node, (const xmlChar*) name); gboolean r = FALSE; if (c) { g_strstrip((char*)c); /* strip leading/trailing whitespace */ *value = atoi((gchar*)c); r = TRUE; } xmlFree(c); return r; } gboolean obt_xml_attr_string(xmlNodePtr node, const gchar *name, gchar **value) { xmlChar *c = xmlGetProp(node, (const xmlChar*) name); gboolean r = FALSE; if (c) { g_strstrip((char*)c); /* strip leading/trailing whitespace */ *value = g_strdup((gchar*)c); r = TRUE; } xmlFree(c); return r; } gboolean obt_xml_attr_contains(xmlNodePtr node, const gchar *name, const gchar *val) { xmlChar *c = xmlGetProp(node, (const xmlChar*) name); gboolean r = FALSE; if (c) { g_strstrip((char*)c); /* strip leading/trailing whitespace */ r = !xmlStrcasecmp(c, (const xmlChar*) val); } xmlFree(c); return r; } |