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freeswitch/libs/libdingaling/src/libdingaling.c

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/*
* libDingaLing XMPP Jingle Library
* Copyright (C) 2005/2006, Anthony Minessale II <anthmct@yahoo.com>
*
* Version: MPL 1.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is libDingaLing XMPP Jingle Library
*
* The Initial Developer of the Original Code is
* Anthony Minessale II <anthmct@yahoo.com>
* Portions created by the Initial Developer are Copyright (C)
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Anthony Minessale II <anthmct@yahoo.com>
*
* libdingaling.c -- Main Library Code
*
*/
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <ctype.h>
#include <iksemel.h>
#include <apr.h>
#include <apr_network_io.h>
#include <apr_errno.h>
#include <apr_general.h>
#include <apr_thread_proc.h>
#include <apr_thread_mutex.h>
#include <apr_thread_cond.h>
#include <apr_thread_rwlock.h>
#include <apr_file_io.h>
#include <apr_poll.h>
#include <apr_dso.h>
#include <apr_hash.h>
#include <apr_strings.h>
#include <apr_network_io.h>
#include <apr_poll.h>
#include <apr_queue.h>
#include <apr_uuid.h>
#include <apr_strmatch.h>
#define APR_WANT_STDIO
#define APR_WANT_STRFUNC
#include <apr_want.h>
#include <apr_env.h>
#include "ldl_compat.h"
#include "libdingaling.h"
#define microsleep(x) apr_sleep(x * 1000)
static int opt_timeout = 30;
static struct {
unsigned int flags;
FILE *log_stream;
int debug;
apr_pool_t *memory_pool;
unsigned int id;
ldl_logger_t logger;
apr_thread_mutex_t *flag_mutex;
} globals;
struct packet_node {
char id[80];
iks *xml;
unsigned int retries;
apr_time_t next;
};
struct ldl_buffer {
char *buf;
unsigned int len;
int hit;
};
struct ldl_handle {
iksparser *parser;
iksid *acc;
iksfilter *filter;
char *login;
char *password;
char *server;
char *status_msg;
uint16_t port;
int features;
int counter;
int job_done;
unsigned int flags;
apr_queue_t *queue;
apr_queue_t *retry_queue;
apr_hash_t *sessions;
apr_hash_t *retry_hash;
apr_hash_t *probe_hash;
apr_thread_mutex_t *lock;
apr_thread_mutex_t *flag_mutex;
ldl_loop_callback_t loop_callback;
ldl_session_callback_t session_callback;
ldl_response_callback_t response_callback;
apr_pool_t *pool;
void *private_info;
FILE *log_stream;
};
struct ldl_session {
ldl_state_t state;
ldl_handle_t *handle;
char *id;
char *initiator;
char *them;
char *ip;
ldl_payload_t payloads[LDL_MAX_PAYLOADS];
unsigned int payload_len;
ldl_candidate_t candidates[LDL_MAX_CANDIDATES];
unsigned int candidate_len;
apr_pool_t *pool;
apr_hash_t *variables;
apr_time_t created;
void *private_data;
};
static char *cut_path(char *in)
{
char *p, *ret = in;
char delims[] = "/\\";
char *i;
for (i = delims; *i; i++) {
p = in;
while ((p = strchr(p, *i)) != 0) {
ret = ++p;
}
}
return ret;
}
static void default_logger(char *file, const char *func, int line, int level, char *fmt, ...)
{
char *fp;
char data[1024];
va_list ap;
fp = cut_path(file);
va_start(ap, fmt);
vsnprintf(data, sizeof(data), fmt, ap);
fprintf(globals.log_stream, "%s:%d %s() %s", file, line, func, data);
va_end(ap);
}
static unsigned int next_id(void)
{
return globals.id++;
}
char *ldl_session_get_value(ldl_session_t *session, char *key)
{
return apr_hash_get(session->variables, key, APR_HASH_KEY_STRING);
}
void ldl_session_set_value(ldl_session_t *session, char *key, char *val)
{
apr_hash_set(session->variables, apr_pstrdup(session->pool, key), APR_HASH_KEY_STRING, apr_pstrdup(session->pool, val));
}
char *ldl_session_get_id(ldl_session_t *session)
{
return session->id;
}
ldl_status ldl_session_destroy(ldl_session_t **session_p)
{
ldl_session_t *session = *session_p;
if (session) {
apr_pool_t *pool = session->pool;
if (globals.debug) {
globals.logger(DL_LOG_DEBUG, "Destroyed Session %s\n", session->id);
}
if (session->id) {
apr_hash_set(session->handle->sessions, session->id, APR_HASH_KEY_STRING, NULL);
}
if (session->them) {
apr_hash_set(session->handle->sessions, session->them, APR_HASH_KEY_STRING, NULL);
}
apr_pool_destroy(pool);
pool = NULL;
*session_p = NULL;
return LDL_STATUS_SUCCESS;
}
return LDL_STATUS_FALSE;
}
ldl_status ldl_session_create(ldl_session_t **session_p, ldl_handle_t *handle, char *id, char *them, char *me)
{
ldl_session_t *session = NULL;
if (!(session = apr_palloc(handle->pool, sizeof(ldl_session_t)))) {
globals.logger(DL_LOG_DEBUG, "Memory ERROR!\n");
*session_p = NULL;
return LDL_STATUS_MEMERR;
}
memset(session, 0, sizeof(ldl_session_t));
apr_pool_create(&session->pool, globals.memory_pool);
session->id = apr_pstrdup(session->pool, id);
session->them = apr_pstrdup(session->pool, them);
if (me) {
session->initiator = apr_pstrdup(session->pool, me);
}
apr_hash_set(handle->sessions, session->id, APR_HASH_KEY_STRING, session);
apr_hash_set(handle->sessions, session->them, APR_HASH_KEY_STRING, session);
session->handle = handle;
session->created = apr_time_now();
session->state = LDL_STATE_NEW;
session->variables = apr_hash_make(session->pool);
*session_p = session;
if (globals.debug) {
globals.logger(DL_LOG_DEBUG, "Created Session %s\n", id);
}
return LDL_STATUS_SUCCESS;
}
static ldl_status parse_session_code(ldl_handle_t *handle, char *id, char *from, iks *xml, char *xtype)
{
ldl_session_t *session = NULL;
ldl_signal_t signal = LDL_SIGNAL_NONE;
char *initiator = iks_find_attrib(xml, "initiator");
char *msg = NULL;
if (!(session = apr_hash_get(handle->sessions, id, APR_HASH_KEY_STRING))) {
ldl_session_create(&session, handle, id, from, initiator);
if (!session) {
return LDL_STATUS_MEMERR;
}
}
if (!session) {
if (globals.debug) {
globals.logger(DL_LOG_DEBUG, "Non-Existent Session %s!\n", id);
}
return LDL_STATUS_MEMERR;
}
if (globals.debug) {
globals.logger(DL_LOG_DEBUG, "Message for Session %s\n", id);
}
while(xml) {
char *type = xtype ? xtype : iks_find_attrib(xml, "type");
iks *tag;
if (type) {
if (!strcasecmp(type, "initiate") || !strcasecmp(type, "accept")) {
signal = LDL_SIGNAL_INITIATE;
if (!strcasecmp(type, "accept")) {
msg = "accept";
}
if (!session->initiator && initiator) {
session->initiator = apr_pstrdup(session->pool, initiator);
}
tag = iks_child (xml);
while(tag) {
if (!strcasecmp(iks_name(tag), "description")) {
iks * itag = iks_child (tag);
while(itag) {
if (!strcasecmp(iks_name(itag), "payload-type") && session->payload_len < LDL_MAX_PAYLOADS) {
char *name = iks_find_attrib(itag, "name");
char *id = iks_find_attrib(itag, "id");
char *rate = iks_find_attrib(itag, "rate");
if (name && id) {
session->payloads[session->payload_len].name = apr_pstrdup(session->pool, name);
session->payloads[session->payload_len].id = atoi(id);
if (rate) {
session->payloads[session->payload_len].rate = atoi(rate);
}
session->payload_len++;
if (globals.debug) {
globals.logger(DL_LOG_DEBUG, "Add Payload [%s] id='%s'\n", name, id);
}
}
}
itag = iks_next_tag(itag);
}
}
tag = iks_next_tag(tag);
}
} else if (!strcasecmp(type, "candidates")) {
signal = LDL_SIGNAL_CANDIDATES;
tag = iks_child (xml);
while(tag) {
if (!strcasecmp(iks_name(tag), "info_element")) {
char *name = iks_find_attrib(tag, "name");
char *value = iks_find_attrib(tag, "value");
if (globals.debug) {
globals.logger(DL_LOG_DEBUG, "Info Element [%s]=[%s]\n", name, value);
}
ldl_session_set_value(session, name, value);
} else if (!strcasecmp(iks_name(tag), "candidate") && session->candidate_len < LDL_MAX_CANDIDATES) {
char *key;
double pref = 0.0;
int index = -1;
if ((key = iks_find_attrib(tag, "preference"))) {
unsigned int x;
pref = strtod(key, NULL);
for (x = 0; x < session->candidate_len; x++) {
if (session->candidates[x].pref == pref) {
if (globals.debug) {
globals.logger(DL_LOG_DEBUG, "Duplicate Pref!\n");
}
index = x;
break;
}
}
}
if (index < 0) {
index = session->candidate_len++;
}
session->candidates[index].pref = pref;
if ((key = iks_find_attrib(tag, "name"))) {
session->candidates[index].name = apr_pstrdup(session->pool, key);
}
if ((key = iks_find_attrib(tag, "type"))) {
session->candidates[index].type = apr_pstrdup(session->pool, key);
}
if ((key = iks_find_attrib(tag, "protocol"))) {
session->candidates[index].protocol = apr_pstrdup(session->pool, key);
}
if ((key = iks_find_attrib(tag, "username"))) {
session->candidates[index].username = apr_pstrdup(session->pool, key);
}
if ((key = iks_find_attrib(tag, "password"))) {
session->candidates[index].password = apr_pstrdup(session->pool, key);
}
if ((key = iks_find_attrib(tag, "address"))) {
session->candidates[index].address = apr_pstrdup(session->pool, key);
}
if ((key = iks_find_attrib(tag, "port"))) {
session->candidates[index].port = atoi(key);
}
if (globals.debug) {
globals.logger(DL_LOG_DEBUG,
"New Candidate %d\n"
"name=%s\n"
"type=%s\n"
"protocol=%s\n"
"username=%s\n"
"password=%s\n"
"address=%s\n"
"port=%d\n"
"pref=%0.2f\n",
session->candidate_len,
session->candidates[index].name,
session->candidates[index].type,
session->candidates[index].protocol,
session->candidates[index].username,
session->candidates[index].password,
session->candidates[index].address,
session->candidates[index].port,
session->candidates[index].pref
);
}
}
tag = iks_next_tag(tag);
}
} else if (!strcasecmp(type, "terminate")) {
signal = LDL_SIGNAL_TERMINATE;
} else if (!strcasecmp(type, "error")) {
signal = LDL_SIGNAL_ERROR;
}
}
xml = iks_child(xml);
}
if (handle->session_callback && signal) {
handle->session_callback(handle, session, signal, from, id, msg);
}
return LDL_STATUS_SUCCESS;
}
static int on_presence(void *user_data, ikspak *pak)
{
ldl_handle_t *handle = user_data;
char *from = iks_find_attrib(pak->x, "from");
char id[1024];
char *resource;
struct ldl_buffer *buffer;
size_t x;
apr_cpystrn(id, from, sizeof(id));
if ((resource = strchr(id, '/'))) {
*resource++ = '\0';
}
if (resource) {
for (x = 0; x < strlen(resource); x++) {
resource[x] = tolower(resource[x]);
}
}
if (resource && strstr(resource, "talk") && (buffer = apr_hash_get(handle->probe_hash, id, APR_HASH_KEY_STRING))) {
apr_cpystrn(buffer->buf, from, buffer->len);
fflush(stderr);
buffer->hit = 1;
}
return IKS_FILTER_EAT;
}
static int on_subscribe(void *user_data, ikspak *pak)
{
ldl_handle_t *handle = user_data;
char *from = iks_find_attrib(pak->x, "from");
iks *msg = iks_make_s10n (IKS_TYPE_SUBSCRIBED, from, "Ding A Ling....");
apr_queue_push(handle->queue, msg);
msg = iks_make_s10n (IKS_TYPE_SUBSCRIBE, from, "Ding A Ling....");
apr_queue_push(handle->queue, msg);
return IKS_FILTER_EAT;
}
static void cancel_retry(ldl_handle_t *handle, char *id)
{
struct packet_node *packet_node;
apr_thread_mutex_lock(handle->lock);
if ((packet_node = apr_hash_get(handle->retry_hash, id, APR_HASH_KEY_STRING))) {
if (globals.debug) {
globals.logger(DL_LOG_DEBUG, "Cancel packet %s\n", packet_node->id);
}
packet_node->retries = 0;
}
apr_thread_mutex_unlock(handle->lock);
}
static int on_commands(void *user_data, ikspak *pak)
{
ldl_handle_t *handle = user_data;
char *from = iks_find_attrib(pak->x, "from");
//char *to = iks_find_attrib(pak->x, "to");
char *iqid = iks_find_attrib(pak->x, "id");
char *type = iks_find_attrib(pak->x, "type");
uint8_t is_result = strcasecmp(type, "result") ? 0 : 1;
iks *xml;
if (is_result) {
iks *tag = iks_child (pak->x);
while(tag) {
if (!strcasecmp(iks_name(tag), "bind")) {
char *jid = iks_find_cdata(tag, "jid");
char *resource = strchr(jid, '/');
handle->acc->resource = apr_pstrdup(handle->pool, resource);
handle->login = apr_pstrdup(handle->pool, jid);
break;
}
tag = iks_next_tag(tag);
}
}
if ((is_result || !strcasecmp(type, "error")) && iqid && from) {
cancel_retry(handle, iqid);
if (is_result) {
if (handle->response_callback) {
handle->response_callback(handle, iqid);
}
return IKS_FILTER_EAT;
}
}
xml = iks_child (pak->x);
while (xml) {
char *name = iks_name(xml);
if (!strcasecmp(name, "session")) {
char *id = iks_find_attrib(xml, "id");
//printf("SESSION type=%s name=%s id=%s\n", type, name, id);
if (parse_session_code(handle, id, from, xml, strcasecmp(type, "error") ? NULL : type) == LDL_STATUS_SUCCESS) {
iks *reply;
reply = iks_make_iq(IKS_TYPE_RESULT, NULL);
iks_insert_attrib(reply, "to", from);
iks_insert_attrib(reply, "id", iqid);
apr_queue_push(handle->queue, reply);
}
}
xml = iks_child (xml);
}
return IKS_FILTER_EAT;
}
static int on_result(void *user_data, ikspak *pak)
{
ldl_handle_t *handle = user_data;
iks *msg, *ctag;
msg = iks_make_pres (IKS_SHOW_AVAILABLE, handle->status_msg);
ctag = iks_insert(msg, "c");
iks_insert_attrib(ctag, "node", "http://www.freeswitch.org/xmpp/client/caps");
iks_insert_attrib(ctag, "ver", "1.0.0.1");
iks_insert_attrib(ctag, "ext", "sidebar voice-v1");
iks_insert_attrib(ctag, "client", "libdingaling");
iks_insert_attrib(ctag, "xmlns", "http://jabber.org/protocol/caps");
apr_queue_push(handle->queue, msg);
ldl_set_flag_locked(handle, LDL_FLAG_READY);
return IKS_FILTER_EAT;
}
static const char c64[65] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
#define B64BUFFLEN 1024
static int b64encode(unsigned char *in, uint32_t ilen, unsigned char *out, uint32_t olen) {
int x=0,y=0,bytes=0;
unsigned int b=0,l=0;
for(x=0;x<ilen;x++) {
b = (b<<8) + in[x];
l += 8;
while (l >= 6) {
out[bytes++] = c64[(b>>(l-=6))%64];
if(++y!=72) {
continue;
}
out[bytes++] = '\n';
y=0;
}
}
if (l > 0) {
out[bytes++] = c64[((b%16)<<(6-l))%64];
}
if (l != 0) while (l < 6) {
out[bytes++] = '=', l += 2;
}
return 0;
}
static int on_stream(ldl_handle_t *handle, int type, iks * node)
{
handle->counter = opt_timeout;
switch (type) {
case IKS_NODE_START:
if (ldl_test_flag(handle, LDL_FLAG_TLS) && !iks_is_secure(handle->parser)) {
if (iks_has_tls()) {
iks_start_tls(handle->parser);
} else {
globals.logger(DL_LOG_DEBUG, "TLS NOT SUPPORTED IN THIS BUILD!\n");
}
}
break;
case IKS_NODE_NORMAL:
if (strcmp("stream:features", iks_name(node)) == 0) {
handle->features = iks_stream_features(node);
if (ldl_test_flag(handle, LDL_FLAG_TLS) && !iks_is_secure(handle->parser))
break;
if (ldl_test_flag(handle, LDL_FLAG_CONNECTED)) {
iks *t;
if (handle->features & IKS_STREAM_BIND) {
t = iks_make_resource_bind(handle->acc);
iks_send(handle->parser, t);
iks_delete(t);
}
if (handle->features & IKS_STREAM_SESSION) {
t = iks_make_session();
iks_insert_attrib(t, "id", "auth");
iks_send(handle->parser, t);
iks_delete(t);
}
} else {
if (handle->features & IKS_STREAM_SASL_MD5) {
iks_start_sasl(handle->parser, IKS_SASL_DIGEST_MD5, handle->acc->user, handle->password);
} else if (handle->features & IKS_STREAM_SASL_PLAIN) {
iks *x = NULL;
if ((x = iks_new("auth"))) {
char s[512] = "";
char base64[1024] = "";
uint32_t slen;
iks_insert_attrib(x, "xmlns", IKS_NS_XMPP_SASL);
iks_insert_attrib(x, "mechanism", "PLAIN");
iks_insert_attrib(x, "encoding", "UTF-8");
snprintf(s, sizeof(s), "%c%s%c%s", 0, handle->acc->user, 0, handle->password);
slen = strlen(handle->acc->user) + strlen(handle->password) + 2;
b64encode((unsigned char *)s, slen, (unsigned char *) base64, sizeof(base64));
iks_insert_cdata(x, base64, 0);
iks_send(handle->parser, x);
iks_delete(x);
} else {
globals.logger(DL_LOG_DEBUG, "Memory ERROR!\n");
break;
}
}
}
} else if (strcmp("failure", iks_name(node)) == 0) {
globals.logger(DL_LOG_DEBUG, "sasl authentication failed\n");
if (handle->session_callback) {
handle->session_callback(handle, NULL, LDL_SIGNAL_LOGIN_FAILURE, "core", "Login Failure", handle->login);
}
} else if (strcmp("success", iks_name(node)) == 0) {
globals.logger(DL_LOG_DEBUG, "XMPP server connected\n");
iks_send_header(handle->parser, handle->acc->server);
ldl_set_flag_locked(handle, LDL_FLAG_CONNECTED);
if (handle->session_callback) {
handle->session_callback(handle, NULL, LDL_SIGNAL_CONNECTED, "core", "Server Connected", handle->login);
}
} else {
ikspak *pak;
if (!ldl_test_flag(handle, LDL_FLAG_AUTHORIZED)) {
if (handle->session_callback) {
handle->session_callback(handle, NULL, LDL_SIGNAL_LOGIN_SUCCESS, "core", "Login Success", handle->login);
}
globals.logger(DL_LOG_DEBUG, "XMPP authenticated\n");
ldl_set_flag_locked(handle, LDL_FLAG_AUTHORIZED);
}
pak = iks_packet(node);
iks_filter_packet(handle->filter, pak);
if (handle->job_done == 1) {
return IKS_HOOK;
}
}
break;
#if 0
case IKS_NODE_STOP:
globals.logger(DL_LOG_DEBUG, "server disconnected\n");
break;
case IKS_NODE_ERROR:
globals.logger(DL_LOG_DEBUG, "stream error\n");
break;
#endif
}
if (node)
iks_delete(node);
return IKS_OK;
}
static int on_msg(void *user_data, ikspak *pak)
{
char *cmd = iks_find_cdata(pak->x, "body");
char *from = iks_find_attrib(pak->x, "from");
char *subject = iks_find_attrib(pak->x, "subject");
ldl_handle_t *handle = user_data;
ldl_session_t *session = NULL;
if (from) {
session = apr_hash_get(handle->sessions, from, APR_HASH_KEY_STRING);
}
if (handle->session_callback) {
handle->session_callback(handle, session, LDL_SIGNAL_MSG, from, subject ? subject : "N/A", cmd);
}
return 0;
}
static int on_error(void *user_data, ikspak * pak)
{
globals.logger(DL_LOG_DEBUG, "authorization failed\n");
return IKS_FILTER_EAT;
}
static void on_log(ldl_handle_t *handle, const char *data, size_t size, int is_incoming)
{
if (iks_is_secure(handle->parser)) {
fprintf(stderr, "Sec");
}
if (is_incoming) {
fprintf(stderr, "RECV");
} else {
fprintf(stderr, "SEND");
}
fprintf(stderr, "[%s]\n", data);
}
static void j_setup_filter(ldl_handle_t *handle, char *login)
{
if (handle->filter) {
iks_filter_delete(handle->filter);
}
handle->filter = iks_filter_new();
/*
iks_filter_add_rule(handle->filter, on_msg, 0,
IKS_RULE_TYPE, IKS_PAK_MESSAGE,
IKS_RULE_SUBTYPE, IKS_TYPE_CHAT, IKS_RULE_FROM, login, IKS_RULE_DONE);
*/
iks_filter_add_rule(handle->filter, on_msg, handle, IKS_RULE_TYPE, IKS_PAK_MESSAGE, IKS_RULE_SUBTYPE, IKS_TYPE_CHAT, IKS_RULE_DONE);
iks_filter_add_rule(handle->filter, on_result, handle,
IKS_RULE_TYPE, IKS_PAK_IQ,
IKS_RULE_SUBTYPE, IKS_TYPE_RESULT, IKS_RULE_ID, "auth", IKS_RULE_DONE);
iks_filter_add_rule(handle->filter, on_presence, handle,
IKS_RULE_TYPE, IKS_PAK_PRESENCE,
//IKS_RULE_SUBTYPE, IKS_TYPE_SET,
IKS_RULE_DONE);
iks_filter_add_rule(handle->filter, on_commands, handle,
IKS_RULE_TYPE, IKS_PAK_IQ,
IKS_RULE_SUBTYPE, IKS_TYPE_SET,
IKS_RULE_DONE);
iks_filter_add_rule(handle->filter, on_commands, handle,
IKS_RULE_TYPE, IKS_PAK_IQ,
IKS_RULE_SUBTYPE, IKS_TYPE_RESULT,
IKS_RULE_DONE);
iks_filter_add_rule(handle->filter, on_commands, handle,
IKS_RULE_TYPE, IKS_PAK_IQ,
IKS_RULE_SUBTYPE, IKS_TYPE_ERROR,
IKS_RULE_DONE);
iks_filter_add_rule(handle->filter, on_subscribe, handle,
IKS_RULE_TYPE, IKS_PAK_S10N,
IKS_RULE_SUBTYPE, IKS_TYPE_SUBSCRIBE,
IKS_RULE_DONE);
iks_filter_add_rule(handle->filter, on_error, handle,
IKS_RULE_TYPE, IKS_PAK_IQ,
IKS_RULE_SUBTYPE, IKS_TYPE_ERROR, IKS_RULE_ID, "auth", IKS_RULE_DONE);
}
static void ldl_flush_queue(ldl_handle_t *handle)
{
iks *msg;
void *pop;
unsigned int len = 0, x = 0;
while(apr_queue_trypop(handle->queue, &pop) == APR_SUCCESS) {
msg = (iks *) pop;
iks_send(handle->parser, msg);
iks_delete(msg);
}
len = apr_queue_size(handle->retry_queue);
if (globals.debug && len) {
globals.logger(DL_LOG_DEBUG, "Processing %u packets in retry queue\n", len);
}
apr_thread_mutex_lock(handle->lock);
while(x < len && apr_queue_trypop(handle->retry_queue, &pop) == APR_SUCCESS) {
struct packet_node *packet_node = (struct packet_node *) pop;
apr_time_t now = apr_time_now();
x++;
if (packet_node->next <= now) {
if (packet_node->retries > 0) {
packet_node->retries--;
if (globals.debug) {
globals.logger(DL_LOG_DEBUG, "Sending packet %s (%d left)\n", packet_node->id, packet_node->retries);
}
iks_send(handle->parser, packet_node->xml);
packet_node->next = now + 5000000;
}
}
if (packet_node->retries == 0) {
if (globals.debug) {
globals.logger(DL_LOG_DEBUG, "Discarding packet %s\n", packet_node->id);
}
apr_hash_set(handle->retry_hash, packet_node->id, APR_HASH_KEY_STRING, NULL);
iks_delete(packet_node->xml);
free(packet_node);
} else {
apr_queue_push(handle->retry_queue, packet_node);
}
}
apr_thread_mutex_unlock(handle->lock);
}
static void *APR_THREAD_FUNC queue_thread(apr_thread_t *thread, void *obj)
{
ldl_handle_t *handle = (ldl_handle_t *) obj;
ldl_set_flag_locked(handle, LDL_FLAG_QUEUE_RUNNING);
while (ldl_test_flag(handle, LDL_FLAG_RUNNING)) {
ldl_flush_queue(handle);
if (handle->loop_callback(handle) != LDL_STATUS_SUCCESS) {
int fd;
if ((fd = iks_fd(handle->parser)) > -1) {
shutdown(fd, 0x02);
}
ldl_clear_flag_locked(handle, LDL_FLAG_RUNNING);
break;
}
microsleep(100);
}
ldl_clear_flag_locked(handle, LDL_FLAG_QUEUE_RUNNING);
return NULL;
}
static void launch_queue_thread(ldl_handle_t *handle)
{
apr_thread_t *thread;
apr_threadattr_t *thd_attr;;
apr_threadattr_create(&thd_attr, handle->pool);
apr_threadattr_detach_set(thd_attr, 1);
apr_threadattr_stacksize_set(thd_attr, 512 * 1024);
apr_thread_create(&thread, thd_attr, queue_thread, handle, handle->pool);
}
static void xmpp_connect(ldl_handle_t *handle, char *jabber_id, char *pass)
{
while (ldl_test_flag(handle, LDL_FLAG_RUNNING)) {
int e;
handle->parser = iks_stream_new(IKS_NS_CLIENT, handle, (iksStreamHook *) on_stream);
if (globals.debug) {
iks_set_log_hook(handle->parser, (iksLogHook *) on_log);
}
handle->acc = iks_id_new(iks_parser_stack(handle->parser), jabber_id);
if (NULL == handle->acc->resource) {
/* user gave no resource name, use the default */
char tmp[512];
sprintf(tmp, "%s@%s/%s", handle->acc->user, handle->acc->server, "dingaling");
handle->acc = iks_id_new(iks_parser_stack(handle->parser), tmp);
}
handle->password = pass;
j_setup_filter(handle, "fixme");
e = iks_connect_via(handle->parser,
handle->server ? handle->server : handle->acc->server,
handle->port ? handle->port : IKS_JABBER_PORT,
//handle->server ? handle->server : handle->acc->server);
handle->acc->server);
switch (e) {
case IKS_OK:
break;
case IKS_NET_NODNS:
globals.logger(DL_LOG_DEBUG, "hostname lookup failed\n");
case IKS_NET_NOCONN:
globals.logger(DL_LOG_DEBUG, "connection failed\n");
default:
globals.logger(DL_LOG_DEBUG, "io error %d\n", e);
microsleep(500);
continue;
}
handle->counter = opt_timeout;
if (ldl_test_flag(handle, LDL_FLAG_TLS)) {
launch_queue_thread(handle);
}
while (ldl_test_flag(handle, LDL_FLAG_RUNNING)) {
e = iks_recv(handle->parser, 1);
if (!ldl_test_flag(handle, LDL_FLAG_TLS) && handle->loop_callback) {
if (handle->loop_callback(handle) != LDL_STATUS_SUCCESS) {
ldl_clear_flag_locked(handle, LDL_FLAG_RUNNING);
break;
}
}
if (handle->job_done) {
break;
}
if (IKS_HOOK == e) {
break;
}
if (IKS_OK != e) {
globals.logger(DL_LOG_DEBUG, "io error %d\n", e);
microsleep(500);
break;
}
if (!ldl_test_flag(handle, LDL_FLAG_TLS) && ldl_test_flag(handle, LDL_FLAG_READY)) {
ldl_flush_queue(handle);
}
if (!ldl_test_flag(handle, LDL_FLAG_CONNECTED)) {
if (IKS_NET_TLSFAIL == e) {
globals.logger(DL_LOG_DEBUG, "tls handshake failed\n");
microsleep(500);
break;
}
if (handle->counter == 0) {
globals.logger(DL_LOG_DEBUG, "network timeout\n");
microsleep(500);
break;
}
}
}
iks_disconnect(handle->parser);
iks_parser_delete(handle->parser);
ldl_clear_flag_locked(handle, LDL_FLAG_CONNECTED);
ldl_clear_flag_locked(handle, LDL_FLAG_AUTHORIZED);
}
ldl_clear_flag_locked(handle, LDL_FLAG_RUNNING);
while(ldl_test_flag(handle, LDL_FLAG_QUEUE_RUNNING)) {
microsleep(100);
}
}
static ldl_status new_session_iq(ldl_session_t *session, iks **iqp, iks **sessp, unsigned int *id, char *type)
{
iks *iq, *sess;
unsigned int myid;
char idbuf[80];
apr_hash_index_t *hi;
myid = next_id();
snprintf(idbuf, sizeof(idbuf), "%u", myid);
iq = iks_new("iq");
iks_insert_attrib(iq, "xmlns", "jabber:client");
iks_insert_attrib(iq, "from", session->handle->login);
iks_insert_attrib(iq, "to", session->them);
iks_insert_attrib(iq, "type", "set");
iks_insert_attrib(iq, "id", idbuf);
sess = iks_insert (iq, "session");
iks_insert_attrib(sess, "xmlns", "http://www.google.com/session");
iks_insert_attrib(sess, "type", type);
iks_insert_attrib(sess, "id", session->id);
iks_insert_attrib(sess, "initiator", session->initiator ? session->initiator : session->them);
for (hi = apr_hash_first(session->pool, session->variables); hi; hi = apr_hash_next(hi)) {
void *val = NULL;
const void *key = NULL;
apr_hash_this(hi, &key, NULL, &val);
if (val) {
iks *var = iks_insert(sess, "info_element");
iks_insert_attrib(var, "xmlns", "http://www.freeswitch.org/jie");
iks_insert_attrib(var, "name", (char *) key);
iks_insert_attrib(var, "value", (char *) val);
}
}
*sessp = sess;
*iqp = iq;
*id = myid;
return LDL_STATUS_SUCCESS;
}
static void schedule_packet(ldl_handle_t *handle, unsigned int id, iks *xml, unsigned int retries)
{
struct packet_node *packet_node;
apr_thread_mutex_lock(handle->lock);
if ((packet_node = malloc(sizeof(*packet_node)))) {
memset(packet_node, 0, sizeof(*packet_node));
snprintf(packet_node->id, sizeof(packet_node->id), "%u", id);
packet_node->xml = xml;
packet_node->retries = retries;
packet_node->next = apr_time_now();
apr_queue_push(handle->retry_queue, packet_node);
apr_hash_set(handle->retry_hash, packet_node->id, APR_HASH_KEY_STRING, packet_node);
}
apr_thread_mutex_unlock(handle->lock);
}
char *ldl_session_get_caller(ldl_session_t *session)
{
return session->them;
}
void ldl_session_set_ip(ldl_session_t *session, char *ip)
{
session->ip = apr_pstrdup(session->pool, ip);
}
char *ldl_session_get_ip(ldl_session_t *session)
{
return session->ip;
}
void ldl_session_set_private(ldl_session_t *session, void *private_data)
{
session->private_data = private_data;
}
void *ldl_session_get_private(ldl_session_t *session)
{
return session->private_data;
}
void *ldl_handle_get_private(ldl_handle_t *handle)
{
return handle->private_info;
}
void ldl_handle_send_msg(ldl_handle_t *handle, char *to, char *subject, char *body)
{
iks *msg;
assert(handle != NULL);
assert(body != NULL);
msg = iks_make_msg(IKS_TYPE_NONE, to, body);
iks_insert_attrib(msg, "type", "chat");
if (subject) {
iks_insert_attrib(msg, "subject", subject);
}
apr_queue_push(handle->queue, msg);
}
void ldl_global_set_logger(ldl_logger_t logger)
{
globals.logger = logger;
}
unsigned int ldl_session_terminate(ldl_session_t *session)
{
iks *iq, *sess;
unsigned int id;
new_session_iq(session, &iq, &sess, &id, "terminate");
schedule_packet(session->handle, id, iq, LDL_RETRY);
return id;
}
unsigned int ldl_session_candidates(ldl_session_t *session,
ldl_candidate_t *candidates,
unsigned int clen)
{
iks *iq, *sess, *tag;
unsigned int x, id;
new_session_iq(session, &iq, &sess, &id, "candidates");
for (x = 0; x < clen; x++) {
char buf[512];
tag = iks_insert(sess, "candidate");
if (candidates[x].name) {
iks_insert_attrib(tag, "name", candidates[x].name);
}
if (candidates[x].address) {
iks_insert_attrib(tag, "address", candidates[x].address);
}
if (candidates[x].port) {
snprintf(buf, sizeof(buf), "%u", candidates[x].port);
iks_insert_attrib(tag, "port", buf);
}
if (candidates[x].username) {
iks_insert_attrib(tag, "username", candidates[x].username);
}
if (candidates[x].password) {
iks_insert_attrib(tag, "password", candidates[x].password);
}
if (candidates[x].pref) {
snprintf(buf, sizeof(buf), "%0.1f", candidates[x].pref);
iks_insert_attrib(tag, "preference", buf);
}
if (candidates[x].protocol) {
iks_insert_attrib(tag, "protocol", candidates[x].protocol);
}
if (candidates[x].type) {
iks_insert_attrib(tag, "type", candidates[x].type);
}
iks_insert_attrib(tag, "network", "0");
iks_insert_attrib(tag, "generation", "0");
}
schedule_packet(session->handle, id, iq, LDL_RETRY);
return id;
}
char *ldl_handle_probe(ldl_handle_t *handle, char *id, char *buf, unsigned int len)
{
iks *pres, *msg;
char *lid = NULL;
struct ldl_buffer buffer;
apr_time_t started;
unsigned int elapsed;
char *notice = "Call Me!";
int again = 0;
buffer.buf = buf;
buffer.len = len;
buffer.hit = 0;
pres = iks_new("presence");
iks_insert_attrib(pres, "type", "probe");
iks_insert_attrib(pres, "to", id);
apr_hash_set(handle->probe_hash, id, APR_HASH_KEY_STRING, &buffer);
msg = iks_make_s10n (IKS_TYPE_SUBSCRIBE, id, notice);
apr_queue_push(handle->queue, msg);
msg = iks_make_s10n (IKS_TYPE_SUBSCRIBED, id, notice);
apr_queue_push(handle->queue, msg);
apr_queue_push(handle->queue, pres);
//schedule_packet(handle, next_id(), pres, LDL_RETRY);
started = apr_time_now();
for(;;) {
elapsed = (unsigned int)((apr_time_now() - started) / 1000);
if (elapsed > 5000 && ! again) {
msg = iks_make_s10n (IKS_TYPE_SUBSCRIBE, id, notice);
apr_queue_push(handle->queue, msg);
again++;
}
if (elapsed > 10000) {
break;
}
if (buffer.hit) {
lid = buffer.buf;
break;
}
ldl_yield(1000);
}
apr_hash_set(handle->probe_hash, id, APR_HASH_KEY_STRING, NULL);
return lid;
}
unsigned int ldl_session_describe(ldl_session_t *session,
ldl_payload_t *payloads,
unsigned int plen,
ldl_description_t description)
{
iks *iq, *sess, *tag, *payload;
unsigned int x, id;
new_session_iq(session, &iq, &sess, &id, description == LDL_DESCRIPTION_ACCEPT ? "accept" : "initiate");
tag = iks_insert(sess, "description");
iks_insert_attrib(tag, "xmlns", "http://www.google.com/session/phone");
for (x = 0; x < plen; x++) {
char idbuf[80];
payload = iks_insert(tag, "payload-type");
iks_insert_attrib(payload, "xmlns", "http://www.google.com/session/phone");
sprintf(idbuf, "%d", payloads[x].id);
iks_insert_attrib(payload, "id", idbuf);
iks_insert_attrib(payload, "name", payloads[x].name);
if (payloads[x].rate) {
sprintf(idbuf, "%d", payloads[x].rate);
iks_insert_attrib(payload, "rate", idbuf);
}
}
schedule_packet(session->handle, id, iq, LDL_RETRY);
return id;
}
ldl_state_t ldl_session_get_state(ldl_session_t *session)
{
return session->state;
}
ldl_status ldl_session_get_candidates(ldl_session_t *session, ldl_candidate_t **candidates, unsigned int *len)
{
if (session->candidate_len) {
*candidates = session->candidates;
*len = session->candidate_len;
return LDL_STATUS_SUCCESS;
} else {
*candidates = NULL;
*len = 0;
return LDL_STATUS_FALSE;
}
}
ldl_status ldl_session_get_payloads(ldl_session_t *session, ldl_payload_t **payloads, unsigned int *len)
{
if (session->payload_len) {
*payloads = session->payloads;
*len = session->payload_len;
return LDL_STATUS_SUCCESS;
} else {
*payloads = NULL;
*len = 0;
return LDL_STATUS_FALSE;
}
}
ldl_status ldl_global_init(int debug)
{
if (ldl_test_flag((&globals), LDL_FLAG_INIT)) {
return LDL_STATUS_FALSE;
}
if (apr_initialize() != LDL_STATUS_SUCCESS) {
apr_terminate();
return LDL_STATUS_MEMERR;
}
memset(&globals, 0, sizeof(globals));
if (apr_pool_create(&globals.memory_pool, NULL) != LDL_STATUS_SUCCESS) {
globals.logger(DL_LOG_DEBUG, "Could not allocate memory pool\n");
return LDL_STATUS_MEMERR;
}
apr_thread_mutex_create(&globals.flag_mutex, APR_THREAD_MUTEX_NESTED, globals.memory_pool);
globals.log_stream = stdout;
globals.debug = debug;
globals.id = 300;
globals.logger = default_logger;
ldl_set_flag_locked((&globals), LDL_FLAG_INIT);
return LDL_STATUS_SUCCESS;
}
ldl_status ldl_global_destroy(void)
{
if (ldl_test_flag(&globals, LDL_FLAG_INIT)) {
return LDL_STATUS_FALSE;
}
apr_pool_destroy(globals.memory_pool);
ldl_clear_flag(&globals, LDL_FLAG_INIT);
apr_terminate();
return LDL_STATUS_SUCCESS;
}
void ldl_global_set_log_stream(FILE *log_stream)
{
assert(ldl_test_flag(&globals, LDL_FLAG_INIT));
globals.log_stream = log_stream;
}
int8_t ldl_handle_ready(ldl_handle_t *handle)
{
return ldl_test_flag(handle, LDL_FLAG_READY);
}
ldl_status ldl_handle_init(ldl_handle_t **handle,
char *login,
char *password,
char *server,
ldl_user_flag_t flags,
char *status_msg,
ldl_loop_callback_t loop_callback,
ldl_session_callback_t session_callback,
ldl_response_callback_t response_callback,
void *private_info)
{
apr_pool_t *pool;
assert(ldl_test_flag(&globals, LDL_FLAG_INIT));
*handle = NULL;
if ((apr_pool_create(&pool, globals.memory_pool)) != LDL_STATUS_SUCCESS) {
return LDL_STATUS_MEMERR;
}
if (!login) {
globals.logger(DL_LOG_ERR, "No login supplied!\n");
return LDL_STATUS_FALSE;
}
if (!password) {
globals.logger(DL_LOG_ERR, "No password supplied!\n");
return LDL_STATUS_FALSE;
}
if ((*handle = apr_palloc(pool, sizeof(ldl_handle_t)))) {
ldl_handle_t *new_handle = *handle;
memset(new_handle, 0, sizeof(ldl_handle_t));
new_handle->log_stream = globals.log_stream;
new_handle->login = apr_pstrdup(pool, login);
new_handle->password = apr_pstrdup(pool, password);
if (server) {
char *p;
new_handle->server = apr_pstrdup(pool, server);
if ((p = strchr(new_handle->server, ':'))) {
*p++ = '\0';
new_handle->port = atoi(p);
}
}
if (status_msg) {
new_handle->status_msg = apr_pstrdup(pool, status_msg);
}
if (loop_callback) {
new_handle->loop_callback = loop_callback;
}
if (session_callback) {
new_handle->session_callback = session_callback;
}
if (response_callback) {
new_handle->response_callback = response_callback;
}
new_handle->private_info = private_info;
new_handle->pool = pool;
new_handle->flags |= flags;
apr_queue_create(&new_handle->queue, LDL_HANDLE_QLEN, new_handle->pool);
apr_queue_create(&new_handle->retry_queue, LDL_HANDLE_QLEN, new_handle->pool);
new_handle->features |= IKS_STREAM_BIND|IKS_STREAM_SESSION;
if (new_handle->flags & LDL_FLAG_SASL_PLAIN) {
new_handle->features |= IKS_STREAM_SASL_PLAIN;
} else if (new_handle->flags & LDL_FLAG_SASL_MD5) {
new_handle->features |= IKS_STREAM_SASL_MD5;
}
new_handle->sessions = apr_hash_make(new_handle->pool);
new_handle->retry_hash = apr_hash_make(new_handle->pool);
new_handle->probe_hash = apr_hash_make(new_handle->pool);
apr_thread_mutex_create(&new_handle->lock, APR_THREAD_MUTEX_NESTED, new_handle->pool);
apr_thread_mutex_create(&new_handle->flag_mutex, APR_THREAD_MUTEX_NESTED, new_handle->pool);
return LDL_STATUS_SUCCESS;
}
return LDL_STATUS_FALSE;
}
void ldl_handle_run(ldl_handle_t *handle)
{
ldl_set_flag_locked(handle, LDL_FLAG_RUNNING);
xmpp_connect(handle, handle->login, handle->password);
ldl_clear_flag_locked(handle, LDL_FLAG_RUNNING);
}
void ldl_handle_stop(ldl_handle_t *handle)
{
ldl_clear_flag_locked(handle, LDL_FLAG_RUNNING);
}
ldl_status ldl_handle_destroy(ldl_handle_t **handle)
{
apr_pool_t *pool = (*handle)->pool;
ldl_flush_queue(*handle);
apr_pool_destroy(pool);
*handle = NULL;
return LDL_STATUS_SUCCESS;
}
void ldl_handle_set_log_stream(ldl_handle_t *handle, FILE *log_stream)
{
assert(ldl_test_flag(&globals, LDL_FLAG_INIT));
handle->log_stream = log_stream;
}
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