utility/registry_xml.c

   1 /**********************************************************************
   2  Freeciv - Copyright (C) 1996 - A Kjeldberg, L Gregersen, P Unold
   3    This program is free software; you can redistribute it and/or modify
   4    it under the terms of the GNU General Public License as published by
   5    the Free Software Foundation; either version 2, or (at your option)
   6    any later version.
   7
   8    This program is distributed in the hope that it will be useful,
   9    but WITHOUT ANY WARRANTY; without even the implied warranty of
  10    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11    GNU General Public License for more details.
  12 ***********************************************************************/
  13
  14 #ifdef HAVE_CONFIG_H
  15 #include <fc_config.h>
  16 #endif
  17
  18 #ifdef FREECIV_HAVE_XML_REGISTRY
  19
  20 #include <libxml/parser.h>
  21
  22 /* utility */
  23 #include "capability.h"
  24 #include "fcintl.h"
  25 #include "mem.h"
  26 #include "registry.h"
  27 #include "section_file.h"
  28
  29 #include "registry_xml.h"
  30
  31 /**************************************************************************
  32   Load section file from xml-file
  33 **************************************************************************/
  34 struct section_file *xmlfile_load(xmlDoc *sec_doc, const char *filename)
  35 {
  36   struct section_file *secfile;
  37   xmlNodePtr xmlroot;
  38   xmlNodePtr current;
  39   char *cap;
  40
  41   secfile = secfile_new(TRUE);
  42
  43   xmlroot = xmlDocGetRootElement(sec_doc);
  44   if (xmlroot == NULL || strcmp((const char *)xmlroot->name, "Freeciv")) {
  45     /* TRANS: do not translate <Freeciv> */
  46     log_error(_("XML-file has no root node <Freeciv>"));
  47     secfile_destroy(secfile);
  48     return NULL;
  49   }
  50
  51   cap = (char *)xmlGetNsProp(xmlroot, (xmlChar *)"options", NULL);
  52
  53   if (cap == NULL) {
  54     log_error(_("XML-file has no capabilities defined!"));
  55     secfile_destroy(secfile);
  56
  57     return NULL;
  58   }
  59   if (!has_capabilities(FCXML_CAPSTR, cap)) {
  60     log_error(_("XML-file has incompatible capabilities."));
  61     log_normal(_("Freeciv capabilities: %s"), FCXML_CAPSTR);
  62     log_normal(_("File capabilities: %s"), cap);
  63     secfile_destroy(secfile);
  64
  65     return NULL;
  66   }
  67
  68   if (filename) {
  69     secfile->name = fc_strdup(filename);
  70   } else {
  71     secfile->name = NULL;
  72   }
  73
  74   current = xmlroot->children;
  75
  76   while (current != NULL) {
  77     if (current->type == XML_ELEMENT_NODE) {
  78       struct section *psection;
  79       xmlNodePtr sec_node;
  80
  81       psection = secfile_section_new(secfile, (const char *)current->name);
  82       sec_node = current->children;
  83
  84       while (sec_node != NULL) {
  85         if (sec_node->type == XML_ELEMENT_NODE) {
  86           xmlNodePtr value_node = sec_node->children;
  87
  88           while (value_node != NULL) {
  89             if (value_node->type == XML_TEXT_NODE) {
  90               const char *content = (const char *) xmlNodeGetContent(value_node);
  91               int len = strlen(content);
  92               char buf[len + 1];
  93
  94               strncpy(buf, content, sizeof(buf));
  95               if (buf[0] == '"' && buf[len - 1] == '"') {
  96                 buf[len - 1] = '\0';
  97               }
  98
  99               if (!entry_from_token(psection, (const char *) sec_node->name,
 100                                     buf)) {
 101                 log_error("Cannot parse token \"%s\"", content);
 102                 secfile_destroy(secfile);
 103                 return NULL;
 104               }
 105             }
 106
 107             value_node = value_node->next;
 108           }
 109         }
 110
 111         sec_node = sec_node->next;
 112       }
 113     }
 114
 115     current = current->next;
 116   }
 117
 118   return secfile;
 119 }
 120
 121 #endif /* FREECIV_HAVE_XML_REGISTRY */