new file.

2000-10-06  Chris Toshok  <toshok@helixcode.com>

	* providers/nntp/camel-nntp-grouplist.c: new file.

	* providers/nntp/camel-nntp-grouplist.h: new file.

	* providers/nntp/camel-nntp-types.h: new file.

svn path=/trunk/; revision=5767

1 files changed, 218 insertions, 0 deletions

diff --git a/camel/providers/nntp/camel-nntp-grouplist.c b/camel/providers/nntp/camel-nntp-grouplist.c
new file mode 100644
index 0000000000..9a4443656a
--- /dev/null
+++ b/camel/providers/nntp/camel-nntp-grouplist.c
@@ -0,0 +1,218 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+/* camel-nntp-grouplist.c : getting/updating the list of newsgroups on the server. */
+
+/* 
+ * Author : Chris Toshok <toshok@helixcode.com> 
+ *
+ * Copyright (C) 2000 Helix Code .
+ *
+ * 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
+ */
+
+#include <config.h>
+#include <errno.h>
+#include <string.h>
+
+#include "camel-exception.h"
+#include "camel-nntp-grouplist.h"
+#include "camel-nntp-resp-codes.h"
+
+static CamelNNTPGroupList *
+camel_nntp_get_grouplist_from_server (CamelNNTPStore *store, CamelException *ex)
+{
+	int status;
+	gboolean done = FALSE;
+	CamelNNTPGroupList *list;
+
+	status = camel_nntp_command (store, ex, NULL,
+				     "LIST");
+
+	if (status != NNTP_LIST_FOLLOWS) {
+		camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
+				      "Could not get group list from server.");
+		return NULL;
+	}
+
+	list = g_new0 (CamelNNTPGroupList, 1);
+	list->time = time (NULL);
+
+	while (!done) {
+		char *line;
+
+		if (camel_remote_store_recv_line (CAMEL_REMOTE_STORE (store), &line, ex) < 0)
+			return list;
+
+		if (*line == '.') {
+			done = TRUE;
+		}
+		else {
+			CamelNNTPGroupListEntry *entry = g_new (CamelNNTPGroupListEntry, 1);
+			char **split_line = g_strsplit (line, " ", 4);
+
+			entry->group_name = g_strdup (split_line[0]);
+			entry->high = atoi (split_line[1]);
+			entry->low = atoi (split_line[2]);
+
+			g_strfreev (split_line);
+			
+			list->group_list = g_list_append (list->group_list, entry);
+		}
+	}
+
+	return list;
+}
+
+static CamelNNTPGroupList*
+camel_nntp_get_grouplist_from_file (CamelNNTPStore *store, CamelException *ex)
+{
+	gchar *root_dir = camel_nntp_store_get_toplevel_dir(CAMEL_NNTP_STORE(store));
+	gchar *grouplist_file = g_strdup_printf ("%s/grouplist", root_dir);
+	CamelNNTPGroupList *list;
+	FILE *fp;
+	char buf[300];
+
+	g_free (root_dir);
+	fp = fopen (grouplist_file, "r");
+	g_free (grouplist_file);
+
+	if (fp == NULL) {
+		camel_exception_setv (ex, CAMEL_EXCEPTION_SERVICE_UNAVAILABLE,
+				      "Unable to load grouplist file for %s: %s",
+				      CAMEL_SERVICE(store)->url->host,
+				      strerror(errno));
+		return NULL;
+	}
+
+	/* read the time */
+	if (!fgets (buf, 300, fp)) {
+		camel_exception_setv (ex, CAMEL_EXCEPTION_SERVICE_UNAVAILABLE,
+				      "Unable to load grouplist file for %s: %s",
+				      CAMEL_SERVICE(store)->url->host,
+				      strerror(errno));
+		fclose (fp);
+		return NULL;
+	}
+
+
+	list = g_new0 (CamelNNTPGroupList, 1);
+	list->store = store;
+	sscanf (buf, "%d", &list->time);
+
+	printf ("time is %d\n", list->time);
+
+	while (fgets (buf, 300, fp)) {
+		CamelNNTPGroupListEntry *entry = g_new (CamelNNTPGroupListEntry, 1);
+		char **split_line = g_strsplit (buf, " ", 4);
+
+		entry->group_name = g_strdup (split_line[0]);
+		entry->high = atoi (split_line[1]);
+		entry->low = atoi (split_line[2]);
+
+		g_strfreev (split_line);
+
+		printf ("adding %s\n", entry->group_name);
+
+		list->group_list = g_list_append (list->group_list, entry);
+	}
+
+	printf ("done\n");
+
+	fclose (fp);
+
+	return list;
+}
+
+static void
+save_entry (CamelNNTPGroupListEntry *entry, FILE *fp)
+{
+	fprintf (fp, "%s %d %d\n", entry->group_name, entry->low, entry->high);
+}
+
+void
+camel_nntp_grouplist_save (CamelNNTPGroupList *group_list, CamelException *ex)
+{
+	FILE *fp;
+	gchar *root_dir = camel_nntp_store_get_toplevel_dir(CAMEL_NNTP_STORE(group_list->store));
+	gchar *grouplist_file = g_strdup_printf ("%s/grouplist", root_dir);
+
+	g_free (root_dir);
+	fp = fopen (grouplist_file, "w");
+	g_free (grouplist_file);
+
+	if (fp == NULL) {
+		camel_exception_setv (ex, CAMEL_EXCEPTION_SERVICE_UNAVAILABLE,
+				      "Unable to save grouplist file for %s: %s",
+				      CAMEL_SERVICE(group_list->store)->url->host,
+				      strerror(errno));
+		return;
+	}
+
+	fprintf (fp, "%d\n", group_list->time); /* XXX */
+
+	g_list_foreach (group_list->group_list, (GFunc)save_entry, fp);
+
+	fclose (fp);
+}
+
+static void
+free_entry (CamelNNTPGroupListEntry *entry, void *data)
+{
+	g_free (entry->group_name);
+	g_free (entry);
+}
+
+void
+camel_nntp_grouplist_free (CamelNNTPGroupList *group_list)
+{
+	g_return_if_fail (group_list);
+
+	g_list_foreach (group_list->group_list, (GFunc)free_entry, NULL);
+
+	g_free (group_list);
+}
+
+CamelNNTPGroupList*
+camel_nntp_grouplist_fetch (CamelNNTPStore *store, CamelException *ex)
+{
+	CamelNNTPGroupList *list;
+
+	list = camel_nntp_get_grouplist_from_file (store, ex);
+
+	printf ("camel_nntp_get_grouplist_from_file returned %p\n", list);
+
+	if (!list) {
+		camel_exception_clear (ex);
+
+		list = camel_nntp_get_grouplist_from_server (store, ex);
+
+		if (!list) {
+			camel_nntp_grouplist_free (list);
+		}
+		else {
+			list->store = store;
+			camel_nntp_grouplist_save (list, ex);
+			return list;
+		}
+	}
+
+	return list;
+}
+
+gint
+camel_nntp_grouplist_update (CamelNNTPGroupList *group_list, CamelException *ex)
+{
+	return 0;
+}