diff options
Diffstat (limited to 'my-evolution/e-summary-rdf.c')
| -rw-r--r-- | my-evolution/e-summary-rdf.c | 687 |
1 files changed, 0 insertions, 687 deletions
diff --git a/my-evolution/e-summary-rdf.c b/my-evolution/e-summary-rdf.c deleted file mode 100644 index fa12df5996..0000000000 --- a/my-evolution/e-summary-rdf.c +++ /dev/null @@ -1,687 +0,0 @@ -/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */ -/* e-summary-rdf.c - * - * Copyright (C) 2001 Ximian, Inc. - * - * 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. - * - * You should have received a copy of the GNU General Public - * License along with this program; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - * - * Author: Iain Holmes - */ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif - -#include <stdlib.h> -#include <glib.h> -#include <gtk/gtkmain.h> - -#include <gnome-xml/parser.h> -#include <gnome-xml/xmlmemory.h> - -#include <libgnome/gnome-defs.h> -#include <libgnome/gnome-i18n.h> -#include <gal/widgets/e-unicode.h> -#include <libgnomevfs/gnome-vfs.h> -#include "e-summary.h" - -struct _ESummaryRDF { - ESummaryConnection *connection; - GList *rdfs; - - char *html; - guint32 timeout; - gboolean online; -}; - -typedef struct _RDF { - char *uri; - char *html; - GnomeVFSAsyncHandle *handle; - GString *string; - char *buffer; - - xmlDocPtr cache; - ESummary *summary; - - gboolean shown; -} RDF; - -int xmlSubstituteEntitiesDefaultValue = 1; - -char * -e_summary_rdf_get_html (ESummary *summary) -{ - GList *rdfs; - char *html; - GString *string; - - if (summary->rdf == NULL) { - return NULL; - } - - string = g_string_new (""); - for (rdfs = summary->rdf->rdfs; rdfs; rdfs = rdfs->next) { - if (((RDF *)rdfs->data)->html == NULL) { - continue; - } - - g_string_append (string, ((RDF *)rdfs->data)->html); - } - - html = string->str; - g_string_free (string, FALSE); - return html; -} - -/************ RDF Parser *******************/ - -static char * -layer_find (xmlNodePtr node, - char *match, - char *fail) -{ - while (node!=NULL) { -#ifdef RDF_DEBUG - xmlDebugDumpNode (stdout, node, 32); - printf("%s.\n", node->name); -#endif - if (strcasecmp (node->name, match)==0) { - if (node->childs != NULL && node->childs->content != NULL) { - return node->childs->content; - } else { - return fail; - } - } - node = node->next; - } - return fail; -} - -static char * -layer_find_url (xmlNodePtr node, - char *match, - char *fail) -{ - char *p = layer_find (node, match, fail); - char *r = p; - static char *wb = NULL; - char *w; - - if (wb) { - g_free (wb); - } - - wb = w = g_malloc (3 * strlen (p)); - - if (*r == ' ') r++; /* Fix UF bug */ - - while (*r) { - if (strncmp (r, "&", 5) == 0) { - *w++ = '&'; - r += 5; - continue; - } - if (strncmp (r, "<", 4) == 0) { - *w++ = '<'; - r += 4; - continue; - } - if (strncmp (r, ">", 4) == 0) { - *w++ = '>'; - r += 4; - continue; - } - if (*r == '"' || *r == ' '){ - *w++ = '%'; - *w++ = "0123456789ABCDEF"[*r/16]; - *w++ = "0123456789ABCDEF"[*r&15]; - r++; - continue; - } - *w++ = *r++; - } - *w = 0; - return wb; -} - -static void -tree_walk (xmlNodePtr root, - RDF *r, - GString *html) -{ - xmlNodePtr walk; - xmlNodePtr rewalk = root; - xmlNodePtr channel = NULL; - xmlNodePtr image = NULL; - xmlNodePtr item[16]; - int items = 0; - int limit; - int i; - char *t, *u; - char *tmp; - - if (r->summary->preferences == NULL) { - limit = 10; - } else { - limit = r->summary->preferences->limit; - } - - /* FIXME: Need arrows */ - if (r->shown == FALSE) { - char *p; - - /* FIXME: Hash table & UID */ - p = g_strdup_printf ("<font size=\"-2\"><a href=\"rdf://%d\">(+)</a></font>", GPOINTER_TO_INT (r)); - g_string_append (html, p); - g_free (p); - } else { - char *p; - - /* FIXME: Hash table & UID */ - p = g_strdup_printf ("<font size=\"-2\"><a href=\"rdf://%d\">(-)</a></font>", GPOINTER_TO_INT (r)); - g_string_append (html, p); - g_free (p); - } - - do { - walk = rewalk; - rewalk = NULL; - - while (walk!=NULL){ -#ifdef RDF_DEBUG - printf ("%p, %s\n", walk, walk->name); -#endif - if (strcasecmp (walk->name, "rdf") == 0) { - rewalk = walk->childs; - walk = walk->next; - continue; - } - if (strcasecmp (walk->name, "rss") == 0){ - rewalk = walk->childs; - walk = walk->next; - continue; - } - /* This is the channel top level */ -#ifdef RDF_DEBUG - printf ("Top level '%s'.\n", walk->name); -#endif - if (strcasecmp (walk->name, "channel") == 0) { - channel = walk; - rewalk = channel->childs; - } - if (strcasecmp (walk->name, "image") == 0) { - image = walk; - g_print ("Image\n"); - } - if (strcasecmp (walk->name, "item") == 0 && items < 16) { - item[items++] = walk; - } - walk = walk->next; - } - } - while (rewalk); - - if (channel == NULL) { - fprintf(stderr, "No channel definition.\n"); - return; - } - - t = layer_find(channel->childs, "title", ""); - u = layer_find(channel->childs, "link", ""); - - if (*u != '\0') - g_string_sprintfa (html, "<a href=\"%s\">", u); - if (r->cache->encoding) - t = e_utf8_from_charset_string (r->cache->encoding, t); - else - t = e_utf8_from_locale_string (t); - g_string_append (html, t); - g_free (t); - if (*u != '\0') { - g_string_append (html, "</a>"); - } - g_string_append (html, "</b></dt>"); - - if (r->shown == FALSE) { - g_string_append (html, "</dl>"); - return; - } - - g_string_append (html, "<ul>"); - - items = MIN (limit, items); - for (i = 0; i < items; i++) { - char *p = layer_find (item[i]->childs, "title", "No information"); - - tmp = g_strdup_printf ("<LI><font size=\"-1\"><A href=\"%s\">\n", layer_find_url(item[i]->childs, "link", "")); - g_string_append (html, tmp); - g_free (tmp); - - if (r->cache->encoding) - p = e_utf8_from_charset_string (r->cache->encoding, p); - else - p = e_utf8_from_locale_string (p); - tmp = g_strdup_printf ("%s\n</A></font></li>", p); - g_free (p); - g_string_append (html, tmp); - g_free (tmp); - } - g_string_append (html, "</UL>"); -} - -static void -display_doc (RDF *r) -{ - GString *html; - - html = g_string_new ("<dl><dt><img src=\"ico-rdf.png\" align=\"middle\" " - "width=\"48\" height=\"48\">"); - - if (r->cache == NULL) { - char *tmp_utf, *str; - - str = g_strdup_printf ("<b>%s:</b><br>%s", _("Error downloading RDF"), - r->uri); - tmp_utf = e_utf8_from_locale_string (str); - g_free (str); - - g_string_append (html, tmp_utf); - g_string_append (html, "</dt>"); - g_free (tmp_utf); - } else { - tree_walk (r->cache->root, r, html); - } - - g_free (r->html); - g_string_append (html, "</dl>"); - r->html = html->str; - g_string_free (html, FALSE); - - e_summary_draw (r->summary); -} - -static void -close_callback (GnomeVFSAsyncHandle *handle, - GnomeVFSResult result, - RDF *r) -{ - ESummary *summary; - char *xml; - xmlDocPtr doc; - - summary = r->summary; - if (summary->rdf->connection->callback) { - ESummaryConnection *connection = summary->rdf->connection; - connection->callback (summary, connection->callback_closure); - } - - if (r->handle == NULL) { - g_free (r->buffer); - r->buffer = NULL; - g_string_free (r->string, TRUE); - r->string = NULL; - return; - } - - r->handle = NULL; - g_free (r->buffer); - r->buffer = NULL; - xml = r->string->str; - g_string_free (r->string, FALSE); - r->string = NULL; - - if (r->cache != NULL) { - xmlFreeDoc (r->cache); - r->cache = NULL; - } - - doc = xmlParseMemory (xml, strlen (xml)); -#if 0 - if (doc == NULL) { - g_free (r->html); - r->html = g_strdup ("<b>Error parsing XML</b>"); - - e_summary_draw (r->summary); - g_free (xml); - return; - } -#endif - g_free (xml); - r->cache = doc; - - /* Draw it */ - display_doc (r); -} - -static void -read_callback (GnomeVFSAsyncHandle *handle, - GnomeVFSResult result, - gpointer buffer, - GnomeVFSFileSize bytes_requested, - GnomeVFSFileSize bytes_read, - RDF *r) -{ - if (result != GNOME_VFS_OK && result != GNOME_VFS_ERROR_EOF) { - char *str; - - g_free (r->html); - str = g_strdup_printf ("<b>%s:</b><br>%s", _("Error downloading RDF"), - r->uri); - r->html = e_utf8_from_locale_string (str); - - g_free (str); - - e_summary_draw (r->summary); - r->handle = NULL; - gnome_vfs_async_close (handle, - (GnomeVFSAsyncCloseCallback) close_callback, r); - return; - } - - if (bytes_read == 0) { - gnome_vfs_async_close (handle, - (GnomeVFSAsyncCloseCallback) close_callback, r); - } else { - *((char *) buffer + bytes_read) = 0; - g_string_append (r->string, (const char *) buffer); - gnome_vfs_async_read (handle, buffer, 4095, - (GnomeVFSAsyncReadCallback) read_callback, r); - } -} - -static void -open_callback (GnomeVFSAsyncHandle *handle, - GnomeVFSResult result, - RDF *r) -{ - if (result != GNOME_VFS_OK) { - char *str; - - g_free (r->html); - str = g_strdup_printf ("<b>%s:</b><br>%s", _("Error downloading RDF"), - r->uri); - r->html = e_utf8_from_locale_string (str); - g_free (str); - - display_doc (r); - return; - } - - r->string = g_string_new (""); - r->buffer = g_new (char, 4096); - - gnome_vfs_async_read (handle, r->buffer, 4095, - (GnomeVFSAsyncReadCallback) read_callback, r); -} - -static gboolean -e_summary_rdf_update (ESummary *summary) -{ - GList *r; - - for (r = summary->rdf->rdfs; r; r = r->next) { - RDF *rdf = r->data; - - gnome_vfs_async_open (&rdf->handle, rdf->uri, - GNOME_VFS_OPEN_READ, - (GnomeVFSAsyncOpenCallback) open_callback, rdf); - } - - return TRUE; -} - -static void -e_summary_rdf_add_uri (ESummary *summary, - const char *uri) -{ - RDF *r; - - r = g_new0 (RDF, 1); - r->summary = summary; - r->uri = g_strdup (uri); - r->shown = TRUE; - summary->rdf->rdfs = g_list_append (summary->rdf->rdfs, r); -} - -static void -e_summary_rdf_protocol (ESummary *summary, - const char *uri, - void *closure) -{ - RDF *r; - int a; - - a = atoi (uri + 6); - if (a == 0) { - g_warning ("A == 0"); - return; - } - - r = (RDF *) GINT_TO_POINTER (a); - r->shown = !r->shown; - - display_doc (r); -} - -static int -e_summary_rdf_count (ESummary *summary, - void *data) -{ - ESummaryRDF *rdf; - GList *p; - int count = 0; - - rdf = summary->rdf; - for (p = rdf->rdfs; p; p = p->next) { - RDF *r = p->data; - - if (r->handle != NULL) { - count++; - } - } - - return count; -} - -static ESummaryConnectionData * -make_connection (RDF *r) -{ - ESummaryConnectionData *d; - - d = g_new (ESummaryConnectionData, 1); - d->hostname = g_strdup (r->uri); - d->type = g_strdup (_("News Feed")); - - return d; -} - -static GList * -e_summary_rdf_add (ESummary *summary, - void *data) -{ - ESummaryRDF *rdf; - GList *p, *connections = NULL; - - rdf = summary->rdf; - for (p = rdf->rdfs; p; p = p->next) { - RDF *r = p->data; - - if (r->handle != NULL) { - ESummaryConnectionData *d; - - d = make_connection (r); - connections = g_list_prepend (connections, d); - } - } - - return connections; -} - -static void -rdf_free (RDF *r) -{ - /* Stop the download */ - if (r->handle) { - gnome_vfs_async_cancel (r->handle); - } - - g_free (r->uri); - g_free (r->html); - g_free (r->buffer); - - if (r->string) { - g_string_free (r->string, TRUE); - } - - if (r->cache) { - xmlFreeDoc (r->cache); - } - - g_free (r); -} - -static void -e_summary_rdf_set_online (ESummary *summary, - GNOME_Evolution_OfflineProgressListener progress, - gboolean online, - void *data) -{ - ESummaryRDF *rdf; - - rdf = summary->rdf; - if (rdf->online == online) { - return; - } - - if (online == TRUE) { - e_summary_rdf_update (summary); - rdf->timeout = gtk_timeout_add (summary->preferences->rdf_refresh_time * 1000, - (GtkFunction) e_summary_rdf_update, - summary); - } else { - gtk_timeout_remove (rdf->timeout); - rdf->timeout = 0; - } - - rdf->online = online; -} - -void -e_summary_rdf_init (ESummary *summary) -{ - ESummaryPrefs *prefs; - ESummaryRDF *rdf; - ESummaryConnection *connection; - int timeout; - - g_return_if_fail (summary != NULL); - g_return_if_fail (IS_E_SUMMARY (summary)); - - prefs = summary->preferences; - rdf = g_new0 (ESummaryRDF, 1); - summary->rdf = rdf; - - connection = g_new (ESummaryConnection, 1); - connection->count = e_summary_rdf_count; - connection->add = e_summary_rdf_add; - connection->set_online = e_summary_rdf_set_online; - connection->closure = NULL; - connection->callback = NULL; - connection->callback_closure = NULL; - - rdf->connection = connection; - e_summary_add_online_connection (summary, connection); - - e_summary_add_protocol_listener (summary, "rdf", e_summary_rdf_protocol, rdf); - if (prefs == NULL) { - e_summary_rdf_add_uri (summary, "http://www.cnn.com/cnn.rss"); - timeout = 600; - } else { - GList *p; - - for (p = prefs->rdf_urls; p; p = p->next) { - e_summary_rdf_add_uri (summary, p->data); - } - timeout = prefs->rdf_refresh_time; - } - - e_summary_rdf_update (summary); - rdf->timeout = gtk_timeout_add (timeout * 1000, - (GtkFunction) e_summary_rdf_update, summary); - - return; -} - -void -e_summary_rdf_reconfigure (ESummary *summary) -{ - ESummaryRDF *rdf; - GList *old, *p; - - g_return_if_fail (summary != NULL); - g_return_if_fail (IS_E_SUMMARY (summary)); - - rdf = summary->rdf; - - /* Stop timeout */ - gtk_timeout_remove (rdf->timeout); - - for (old = rdf->rdfs; old; old = old->next) { - RDF *r; - - r = old->data; - rdf_free (r); - } - g_list_free (rdf->rdfs); - rdf->rdfs = NULL; - - for (p = summary->preferences->rdf_urls; p; p = p->next) { - e_summary_rdf_add_uri (summary, p->data); - } - - rdf->timeout = gtk_timeout_add (summary->preferences->rdf_refresh_time * 1000, (GtkFunction) e_summary_rdf_update, summary); - e_summary_rdf_update (summary); -} - -void -e_summary_rdf_free (ESummary *summary) -{ - ESummaryRDF *rdf; - GList *p; - - g_return_if_fail (summary != NULL); - g_return_if_fail (IS_E_SUMMARY (summary)); - - rdf = summary->rdf; - - if (rdf->timeout != 0) { - gtk_timeout_remove (rdf->timeout); - } - for (p = rdf->rdfs; p; p = p->next) { - RDF *r = p->data; - - rdf_free (r); - } - g_list_free (rdf->rdfs); - g_free (rdf->html); - - e_summary_remove_online_connection (summary, rdf->connection); - g_free (rdf->connection); - - g_free (rdf); - summary->rdf = NULL; -} |