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-rw-r--r--src/xplist.c312
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diff --git a/src/xplist.c b/src/xplist.c
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1/*
2 * plist.c
3 * XML plist implementation
4 *
5 * Copyright (c) 2008 Jonathan Beck All Rights Reserved.
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22
23#include <string.h>
24#include <assert.h>
25#include "utils.h"
26#include "plist.h"
27#include <wchar.h>
28#include <stdlib.h>
29#include <stdio.h>
30
31
32#include <libxml/parser.h>
33#include <libxml/tree.h>
34
35
36const char *plist_base = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n\
37<!DOCTYPE plist PUBLIC \"-//Apple Computer//DTD PLIST 1.0//EN\" \"http://www.apple.com/DTDs/PropertyList-1.0.dtd\">\n\
38<plist version=\"1.0\">\n\
39</plist>\0";
40
41
42/** Formats a block of text to be a given indentation and width.
43 *
44 * The total width of the return string will be depth + cols.
45 *
46 * @param buf The string to format.
47 * @param cols The number of text columns for returned block of text.
48 * @param depth The number of tabs to indent the returned block of text.
49 *
50 * @return The formatted string.
51 */
52char *format_string(const char *buf, int cols, int depth)
53{
54 int colw = depth + cols + 1;
55 int len = strlen(buf);
56 int nlines = len / cols + 1;
57 char *new_buf = (char *) malloc(nlines * colw + depth + 1);
58 int i = 0;
59 int j = 0;
60
61 assert(cols >= 0);
62 assert(depth >= 0);
63
64 // Inserts new lines and tabs at appropriate locations
65 for (i = 0; i < nlines; i++) {
66 new_buf[i * colw] = '\n';
67 for (j = 0; j < depth; j++)
68 new_buf[i * colw + 1 + j] = '\t';
69 memcpy(new_buf + i * colw + 1 + depth, buf + i * cols, cols);
70 }
71 new_buf[len + (1 + depth) * nlines] = '\n';
72
73 // Inserts final row of indentation and termination character
74 for (j = 0; j < depth; j++)
75 new_buf[len + (1 + depth) * nlines + 1 + j] = '\t';
76 new_buf[len + (1 + depth) * nlines + depth + 1] = '\0';
77
78 return new_buf;
79}
80
81
82
83struct xml_node {
84 xmlNodePtr xml;
85 uint32_t depth;
86};
87
88/** Creates a new plist XML document.
89 *
90 * @return The plist XML document.
91 */
92xmlDocPtr new_xml_plist()
93{
94 char *plist = strdup(plist_base);
95 xmlDocPtr plist_xml = xmlReadMemory(plist, strlen(plist), NULL, NULL, 0);
96
97 if (!plist_xml)
98 return NULL;
99
100 free(plist);
101
102 return plist_xml;
103}
104
105/** Destroys a previously created XML document.
106 *
107 * @param plist The XML document to destroy.
108 */
109void free_plist(xmlDocPtr plist)
110{
111 if (!plist)
112 return;
113
114 xmlFreeDoc(plist);
115}
116
117void node_to_xml(GNode * node, gpointer xml_struct)
118{
119 if (!node)
120 return;
121
122 struct xml_node *xstruct = (struct xml_node *) xml_struct;
123 struct plist_data *node_data = (struct plist_data *) node->data;
124
125 xmlNodePtr child_node = NULL;
126 char isStruct = FALSE;
127
128 gchar *tag = NULL;
129 gchar *val = NULL;
130
131 switch (node_data->type) {
132 case PLIST_BOOLEAN:
133 {
134 if (node_data->boolval)
135 tag = "true";
136 else
137 tag = "false";
138 }
139 break;
140
141 case PLIST_UINT:
142 tag = "integer";
143 val = g_strdup_printf("%lu", (long unsigned int) node_data->intval);
144 break;
145
146 case PLIST_REAL:
147 tag = "real";
148 val = g_strdup_printf("%Lf", (long double) node_data->realval);
149 break;
150
151 case PLIST_STRING:
152 tag = "string";
153 val = g_strdup(node_data->strval);
154 break;
155
156 case PLIST_UNICODE:
157 tag = "string";
158 val = g_strdup((gchar *) node_data->unicodeval);
159 break;
160
161 case PLIST_KEY:
162 tag = "key";
163 val = g_strdup((gchar *) node_data->strval);
164 break;
165
166 case PLIST_DATA:
167 tag = "data";
168 gchar *valtmp = g_base64_encode(node_data->buff, node_data->length);
169 val = format_string(valtmp, 60, xstruct->depth);
170 g_free(valtmp);
171 break;
172 case PLIST_ARRAY:
173 tag = "array";
174 isStruct = TRUE;
175 break;
176 case PLIST_DICT:
177 tag = "dict";
178 isStruct = TRUE;
179 break;
180 case PLIST_DATE: //TODO : handle date tag
181 default:
182 break;
183 }
184
185 int i = 0;
186 for (i = 0; i < xstruct->depth; i++) {
187 xmlNodeAddContent(xstruct->xml, "\t");
188 }
189 child_node = xmlNewChild(xstruct->xml, NULL, tag, val);
190 xmlNodeAddContent(xstruct->xml, "\n");
191 g_free(val);
192
193 //add return for structured types
194 if (node_data->type == PLIST_ARRAY || node_data->type == PLIST_DICT || node_data->type == PLIST_DATA)
195 xmlNodeAddContent(child_node, "\n");
196
197 if (isStruct) {
198 struct xml_node child = { child_node, xstruct->depth + 1 };
199 g_node_children_foreach(node, G_TRAVERSE_ALL, node_to_xml, &child);
200 }
201 //fix indent for structured types
202 if (node_data->type == PLIST_ARRAY || node_data->type == PLIST_DICT || node_data->type == PLIST_DATA) {
203
204 for (i = 0; i < xstruct->depth; i++) {
205 xmlNodeAddContent(child_node, "\t");
206 }
207 }
208
209 return;
210}
211
212void xml_to_node(xmlNodePtr xml_node, plist_t * plist_node)
213{
214 xmlNodePtr node = NULL;
215
216 for (node = xml_node->children; node; node = node->next) {
217
218 while (node && !xmlStrcmp(node->name, "text"))
219 node = node->next;
220 if (!node)
221 break;
222
223 struct plist_data *data = (struct plist_data *) calloc(sizeof(struct plist_data), 1);
224 GNode *subnode = g_node_new(data);
225 if (*plist_node)
226 g_node_append(*plist_node, subnode);
227 else
228 *plist_node = subnode;
229
230 if (!xmlStrcmp(node->name, "true")) {
231 data->boolval = 1;
232 data->type = PLIST_BOOLEAN;
233 continue;
234 }
235
236 if (!xmlStrcmp(node->name, "false")) {
237 data->boolval = 0;
238 data->type = PLIST_BOOLEAN;
239 continue;
240 }
241
242 if (!xmlStrcmp(node->name, "integer")) {
243 char *strval = xmlNodeGetContent(node);
244 data->intval = g_ascii_strtoull(strval, NULL, 0);
245 data->type = PLIST_UINT;
246 continue;
247 }
248
249 if (!xmlStrcmp(node->name, "real")) {
250 char *strval = xmlNodeGetContent(node);
251 data->realval = atof(strval);
252 data->type = PLIST_REAL;
253 continue;
254 }
255
256 if (!xmlStrcmp(node->name, "date"))
257 continue; //TODO : handle date tag
258
259 if (!xmlStrcmp(node->name, "string")) {
260 data->strval = strdup(xmlNodeGetContent(node));
261 data->type = PLIST_STRING;
262 continue;
263 }
264
265 if (!xmlStrcmp(node->name, "key")) {
266 data->strval = strdup(xmlNodeGetContent(node));
267 data->type = PLIST_KEY;
268 continue;
269 }
270
271 if (!xmlStrcmp(node->name, "data")) {
272 gsize size = 0;
273 data->buff = g_base64_decode(xmlNodeGetContent(node), &size);
274 data->length = size;
275 data->type = PLIST_DATA;
276 continue;
277 }
278
279 if (!xmlStrcmp(node->name, "array")) {
280 data->type = PLIST_ARRAY;
281 xml_to_node(node, &subnode);
282 continue;
283 }
284
285 if (!xmlStrcmp(node->name, "dict")) {
286 data->type = PLIST_DICT;
287 xml_to_node(node, &subnode);
288 continue;
289 }
290 }
291}
292
293void plist_to_xml(plist_t plist, char **plist_xml, uint32_t * length)
294{
295 if (!plist || !plist_xml || *plist_xml)
296 return;
297 xmlDocPtr plist_doc = new_xml_plist();
298 xmlNodePtr root_node = xmlDocGetRootElement(plist_doc);
299 struct xml_node root = { root_node, 0 };
300
301 node_to_xml(plist, &root);
302
303 xmlDocDumpMemory(plist_doc, (xmlChar **) plist_xml, length);
304}
305
306void xml_to_plist(const char *plist_xml, uint32_t length, plist_t * plist)
307{
308 xmlDocPtr plist_doc = xmlReadMemory(plist_xml, length, NULL, NULL, 0);
309 xmlNodePtr root_node = xmlDocGetRootElement(plist_doc);
310
311 xml_to_node(root_node, plist);
312}
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