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/*
* This file is part of telepathy-idle
*
* Copyright (C) 2006-2007 Collabora Limited
* Copyright (C) 2006-2007 Nokia Corporation
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* version 2.1 as published by the Free Software Foundation.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "config.h"
#include "idle-text.h"
#include <time.h>
#include <string.h>
#define IDLE_DEBUG_FLAG IDLE_DEBUG_TEXT
#include "idle-ctcp.h"
#include "idle-debug.h"
gboolean idle_text_decode(const gchar *text, TpChannelTextMessageType *type, gchar **body) {
gchar *tmp = NULL;
if (text[0] != '\001') {
*type = TP_CHANNEL_TEXT_MESSAGE_TYPE_NORMAL;
tmp = g_strdup(text);
} else {
size_t actionlen = strlen("\001ACTION ");
if (!g_ascii_strncasecmp(text, "\001ACTION ", actionlen)) {
*type = TP_CHANNEL_TEXT_MESSAGE_TYPE_ACTION;
tmp = g_strndup(text + actionlen, strlen(text + actionlen) - 1);
} else {
*body = NULL;
return FALSE;
}
}
*body = idle_ctcp_kill_blingbling(tmp);
g_free(tmp);
return TRUE;
}
/**
* idle_text_encode_and_split:
* @type: The type of message as per Telepathy
* @recipient: The target user or channel
* @text: The message body
* @max_msg_len: The maximum length of the message on this server (see also
* idle_connection_get_max_message_length())
* @bodies_out: Location at which to return the human-readable bodies of each
* part
* @error: Location at which to store an error
*
* Splits @text as necessary to be able to send it over IRC. IRC messages
* cannot contain newlines, and have a (server-determined) maximum length.
*
* Returns: A list of IRC protocol commands representing @text as best possible.
*/
GStrv
idle_text_encode_and_split(TpChannelTextMessageType type,
const gchar *recipient,
const gchar *text,
gsize max_msg_len,
GStrv *bodies_out,
GError **error) {
GPtrArray *messages;
GPtrArray *bodies;
const gchar *remaining_text = text;
const gchar * const text_end = text + strlen(text);
gchar *header;
const gchar *footer = "";
gsize max_bytes;
switch (type) {
case TP_CHANNEL_TEXT_MESSAGE_TYPE_NORMAL:
header = g_strdup_printf("PRIVMSG %s :", recipient);
break;
case TP_CHANNEL_TEXT_MESSAGE_TYPE_ACTION:
header = g_strdup_printf("PRIVMSG %s :\001ACTION ", recipient);
footer = "\001";
break;
case TP_CHANNEL_TEXT_MESSAGE_TYPE_NOTICE:
header = g_strdup_printf("NOTICE %s :", recipient);
break;
default:
IDLE_DEBUG("unsupported message type %u", type);
g_set_error(error, TP_ERROR, TP_ERROR_NOT_IMPLEMENTED, "unsupported message type %u", type);
return NULL;
}
messages = g_ptr_array_new();
bodies = g_ptr_array_new();
max_bytes = max_msg_len - (strlen(header) + strlen(footer));
while (remaining_text < text_end) {
char *newline = strchr(remaining_text, '\n');
const char *end_iter;
char *message;
int len;
if (newline != NULL && ((unsigned) (newline - remaining_text)) < max_bytes) {
/* String up to the next newline is short enough. */
end_iter = newline;
} else if ((text_end - remaining_text) > (gint) max_bytes) {
/* Remaining string is too long; take as many bytes as possible */
end_iter = remaining_text + max_bytes;
/* make sure we don't break a UTF-8 code point in half */
end_iter = g_utf8_find_prev_char (remaining_text, end_iter);
} else {
/* Just take it all. */
end_iter = text_end;
}
len = (int)(end_iter - remaining_text);
message = g_strdup_printf("%s%.*s%s", header, len, remaining_text, footer);
g_ptr_array_add(messages, message);
g_ptr_array_add(bodies, g_strndup(remaining_text, len));
remaining_text = end_iter;
if (*end_iter == '\n') {
/* advance over a newline */
remaining_text++;
}
}
g_assert (remaining_text == text_end);
g_ptr_array_add(messages, NULL);
g_ptr_array_add(bodies, NULL);
if (bodies_out != NULL) {
*bodies_out = (GStrv) g_ptr_array_free(bodies, FALSE);
} else {
g_ptr_array_free(bodies, TRUE);
}
g_free(header);
return (GStrv) g_ptr_array_free(messages, FALSE);
}
void idle_text_send(GObject *obj, TpMessage *message, TpMessageSendingFlags flags, const gchar *recipient, IdleConnection *conn) {
GError *error = NULL;
const GHashTable *part;
TpChannelTextMessageType type = TP_CHANNEL_TEXT_MESSAGE_TYPE_NORMAL;
gboolean result = TRUE;
const gchar *content_type, *text;
guint n_parts;
GStrv messages;
GStrv bodies;
gsize msg_len;
guint i;
#define INVALID_ARGUMENT(msg, ...) \
G_STMT_START { \
IDLE_DEBUG (msg , ## __VA_ARGS__); \
g_set_error (&error, TP_ERROR, TP_ERROR_INVALID_ARGUMENT, \
msg , ## __VA_ARGS__); \
goto failed; \
} G_STMT_END
g_return_if_fail (recipient != NULL);
part = tp_message_peek (message, 0);
if (tp_asv_lookup (part, "message-type") != NULL)
type = tp_asv_get_uint32 (part, "message-type", &result);
if (!result)
INVALID_ARGUMENT ("message-type must be a 32-bit unsigned integer");
if (type >= TP_NUM_CHANNEL_TEXT_MESSAGE_TYPES)
INVALID_ARGUMENT ("invalid message type: %u", type);
n_parts = tp_message_count_parts (message);
if (n_parts != 2)
INVALID_ARGUMENT ("message must contain exactly 1 part, not %u", (n_parts - 1));
part = tp_message_peek (message, 1);
content_type = tp_asv_get_string (part, "content-type");
text = tp_asv_get_string (part, "content");
if (tp_strdiff (content_type, "text/plain"))
INVALID_ARGUMENT ("message must be text/plain");
if (tp_str_empty (text))
INVALID_ARGUMENT ("content must be a UTF-8 string");
/* Okay, it's valid. Let's send it. */
msg_len = idle_connection_get_max_message_length(conn);
messages = idle_text_encode_and_split(type, recipient, text, msg_len, &bodies, &error);
if (messages == NULL)
goto failed;
for(i = 0; messages[i] != NULL; i++) {
g_assert(bodies[i] != NULL);
idle_connection_send(conn, messages[i]);
}
g_strfreev(messages);
g_strfreev(bodies);
tp_message_mixin_sent (obj, message, flags, "", NULL);
return;
failed:
g_assert (error != NULL);
tp_message_mixin_sent (obj, message, 0, NULL, error);
g_error_free (error);
}
gboolean
idle_text_received (GObject *chan,
TpBaseConnection *base_conn,
TpChannelTextMessageType type,
const gchar *text,
TpHandle sender)
{
TpMessage *msg;
msg = tp_cm_message_new_text (base_conn, sender, type, text);
tp_message_set_int64 (msg, 0, "message-received", time (NULL));
tp_message_mixin_take_received (chan, msg);
return TRUE;
}
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