1 /*
2 * Copyright (C) 2006 Andrej Kacian <andrej@kacian.sk>
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation; either version 2 of the
7 * License, or (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public
15 * License along with this program; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
18 */
19 #define __USE_GNU
20
21 #include <glib.h>
22 #include <expat.h>
23 #include <string.h>
24
25 #include <procheader.h>
26
27 #include "feed.h"
28 #include "date.h"
29 #include "parser_rdf.h"
30
31 enum {
32 FEED_LOC_RDF_NONE,
33 FEED_LOC_RDF_CHANNEL,
34 FEED_LOC_RDF_ITEM
35 } FeedRdfLocations;
36
feed_parser_rdf_start(void * data,const gchar * el,const gchar ** attr)37 void feed_parser_rdf_start(void *data, const gchar *el, const gchar **attr)
38 {
39 FeedParserCtx *ctx = (FeedParserCtx *)data;
40
41 if( ctx->depth == 1 ) {
42 if( !strcmp(el, "channel") ) {
43 ctx->location = FEED_LOC_RDF_CHANNEL;
44 } else if( !strcmp(el, "item") ) {
45
46 if( ctx->curitem != NULL )
47 feed_item_free(ctx->curitem);
48
49 ctx->curitem = feed_item_new(ctx->feed);
50 ctx->location = FEED_LOC_RDF_ITEM;
51
52 } else ctx->location = 0;
53 }
54
55 ctx->depth++;
56
57 }
58
feed_parser_rdf_end(void * data,const gchar * el)59 void feed_parser_rdf_end(void *data, const gchar *el)
60 {
61 FeedParserCtx *ctx = (FeedParserCtx *)data;
62 Feed *feed = ctx->feed;
63 gchar *text = NULL;
64
65 if( ctx->str != NULL )
66 text = g_strstrip(g_strdup(ctx->str->str));
67 else
68 text = "";
69
70 ctx->depth--;
71
72 switch( ctx->depth ) {
73
74 case 0:
75
76 if( !strcmp(el, "rdf") ) {
77 /* we finished parsing the feed */
78 ctx->feed->items = g_slist_reverse(ctx->feed->items);
79 }
80
81 break;
82
83 case 1:
84
85 /* <item></item> block just ended, so ... */
86 if( !strcmp(el, "item") ) {
87
88 /* add the complete feed item to our feed struct */
89 ctx->feed->items =
90 g_slist_prepend(ctx->feed->items, (gpointer)ctx->curitem);
91
92 /* since it's in the linked list, lose this pointer */
93 ctx->curitem = NULL;
94 }
95
96 break;
97
98 case 2:
99
100 switch(ctx->location) {
101
102 /* We're inside introductory <channel></channel> */
103 case FEED_LOC_RDF_CHANNEL:
104 if( !strcmp(el, "title") ) {
105 FILL(feed->title)
106 } else if( !strcmp(el, "description" ) ) {
107 FILL(feed->description)
108 } else if( !strcmp(el, "dc:language") ) {
109 FILL(feed->language)
110 } else if( !strcmp(el, "dc:creator") ) {
111 FILL(feed->author)
112 } else if( !strcmp(el, "dc:date") ) {
113 feed->date = procheader_date_parse(NULL, text, 0);
114 } else if( !strcmp(el, "pubDate") ) {
115 feed->date = procheader_date_parse(NULL, text, 0);
116 }
117
118 break;
119
120 /* We're inside an <item></item> */
121 case FEED_LOC_RDF_ITEM:
122 if( ctx->curitem == NULL ) {
123 break;
124 }
125
126 /* decide which field did we just get */
127 if( !strcmp(el, "title") ) {
128 FILL(ctx->curitem->title)
129 } else if( !strcmp(el, "dc:creator") ) {
130 FILL(ctx->curitem->author)
131 } else if( !strcmp(el, "description") ) {
132 FILL(ctx->curitem->summary)
133 } else if( !strcmp(el, "content:encoded") ) {
134 FILL(ctx->curitem->text)
135 } else if( !strcmp(el, "link") ) {
136 FILL(ctx->curitem->url)
137 } else if( !strcmp(el, "dc:date") ) {
138 ctx->curitem->date_modified = procheader_date_parse(NULL, text, 0);
139 } else if( !strcmp(el, "pubDate") ) {
140 ctx->curitem->date_modified = procheader_date_parse(NULL, text, 0);
141 }
142
143 break;
144 }
145
146 break;
147
148 }
149
150 if( ctx->str != NULL ) {
151 g_free(text);
152 g_string_free(ctx->str, TRUE);
153 ctx->str = NULL;
154 }
155 }
156