int
network_pass_proxy (const char *proxy, int sock, const char *address, int port)
{
int rc;
struct t_proxy *ptr_proxy;
rc = 0;
ptr_proxy = proxy_search (proxy);
if (ptr_proxy)
{
switch (CONFIG_INTEGER(ptr_proxy->options[PROXY_OPTION_TYPE]))
{
case PROXY_TYPE_HTTP:
rc = network_pass_httpproxy (ptr_proxy, sock, address, port);
break;
case PROXY_TYPE_SOCKS4:
rc = network_pass_socks4proxy (ptr_proxy, sock, address, port);
break;
case PROXY_TYPE_SOCKS5:
rc = network_pass_socks5proxy (ptr_proxy, sock, address, port);
break;
}
}
return rc;
}
struct t_proxy *
proxy_new (const char *name, const char *type, const char *ipv6,
const char *address, const char *port, const char *username,
const char *password)
{
struct t_config_option *option_type, *option_ipv6, *option_address;
struct t_config_option *option_port, *option_username, *option_password;
struct t_proxy *new_proxy;
if (!name || !name[0])
return NULL;
/* it's not possible to create 2 proxies with same name */
if (proxy_search (name))
return NULL;
/* look for type */
if (proxy_search_type (type) < 0)
return NULL;
option_type = proxy_create_option (name, PROXY_OPTION_TYPE,
type);
option_ipv6 = proxy_create_option (name, PROXY_OPTION_IPV6,
ipv6);
option_address = proxy_create_option (name, PROXY_OPTION_ADDRESS,
(address) ? address : "");
option_port = proxy_create_option (name, PROXY_OPTION_PORT,
port);
option_username = proxy_create_option (name, PROXY_OPTION_USERNAME,
(username) ? username : "");
option_password = proxy_create_option (name, PROXY_OPTION_PASSWORD,
(password) ? password : "");
new_proxy = proxy_new_with_options (name, option_type, option_ipv6,
option_address, option_port,
option_username, option_password);
if (!new_proxy)
{
if (option_type)
config_file_option_free (option_type);
if (option_ipv6)
config_file_option_free (option_ipv6);
if (option_address)
config_file_option_free (option_address);
if (option_port)
config_file_option_free (option_port);
if (option_username)
config_file_option_free (option_username);
if (option_password)
config_file_option_free (option_password);
}
return new_proxy;
}
static GList *
search_path (const char *path)
{
GList *results = NULL;
GList *iter = NULL;
/* Proxy first */
results = proxy_search (path);
if (!results)
{
/* Indexers second */
if (index_get (path, &results) == true)
{
DEBUG (" (index result:)\n");
}
else
{
/* Search database next */
results = db_search (path);
/* Append any provided paths */
GList *providers = NULL;
providers = cb_match (&provide_list, path, CB_MATCH_PART);
for (iter = providers; iter; iter = g_list_next (iter))
{
cb_info_t *provider = iter->data;
int len = strlen (path);
/* If there is a provider for a single node below here it may
* show as a "*" entry in this list, which is not desirable */
if (strlen (provider->path) > strlen (path) &&
provider->path[strlen (path)] == '*')
{
continue;
}
char *ptr, *provider_path = g_strdup (provider->path);
if ((ptr = strchr (&provider_path[len ? len : len+1], '/')) != 0)
*ptr = '\0';
if (!g_list_find_custom (results, provider_path, (GCompareFunc) strcmp))
results = g_list_prepend (results, provider_path);
else
g_free (provider_path);
}
g_list_free_full (providers, (GDestroyNotify) cb_release);
}
}
return results;
}
int
network_connect_to (const char *proxy, int sock,
unsigned long address, int port)
{
struct t_proxy *ptr_proxy;
struct sockaddr_in addr;
struct hostent *hostent;
char *ip4;
ptr_proxy = NULL;
if (proxy && proxy[0])
{
ptr_proxy = proxy_search (proxy);
if (!ptr_proxy)
return 0;
}
if (ptr_proxy)
{
memset (&addr, 0, sizeof (addr));
addr.sin_addr.s_addr = htonl (address);
ip4 = inet_ntoa(addr.sin_addr);
memset (&addr, 0, sizeof (addr));
addr.sin_port = htons (CONFIG_INTEGER(ptr_proxy->options[PROXY_OPTION_PORT]));
addr.sin_family = AF_INET;
hostent = gethostbyname (CONFIG_STRING(ptr_proxy->options[PROXY_OPTION_ADDRESS]));
if (!hostent)
return 0;
memcpy(&(addr.sin_addr), *(hostent->h_addr_list), sizeof(struct in_addr));
if (!network_connect (sock, (struct sockaddr *) &addr, sizeof (addr)))
return 0;
if (!network_pass_proxy (proxy, sock, ip4, port))
return 0;
}
else
{
memset (&addr, 0, sizeof (addr));
addr.sin_port = htons (port);
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = htonl (address);
if (!network_connect (sock, (struct sockaddr *) &addr, sizeof (addr)))
return 0;
}
return 1;
}
int
weeurl_download (const char *url, struct t_hashtable *options)
{
CURL *curl;
struct t_url_file url_file[2];
char *url_file_option[2] = { "file_in", "file_out" };
char *url_file_mode[2] = { "rb", "wb" };
CURLoption url_file_opt_func[2] = { CURLOPT_READFUNCTION, CURLOPT_WRITEFUNCTION };
CURLoption url_file_opt_data[2] = { CURLOPT_READDATA, CURLOPT_WRITEDATA };
void *url_file_opt_cb[2] = { &weeurl_read, &weeurl_write };
struct t_proxy *ptr_proxy;
int rc, curl_rc, i;
rc = 0;
for (i = 0; i < 2; i++)
{
url_file[i].filename = NULL;
url_file[i].stream = NULL;
}
if (!url || !url[0])
{
rc = 1;
goto end;
}
curl = curl_easy_init();
if (!curl)
{
rc = 3;
goto end;
}
/* set default options */
curl_easy_setopt (curl, CURLOPT_URL, url);
curl_easy_setopt (curl, CURLOPT_FOLLOWLOCATION, 1L);
/* set proxy (if option weechat.network.proxy_curl is set) */
if (CONFIG_STRING(config_network_proxy_curl)
&& CONFIG_STRING(config_network_proxy_curl)[0])
{
ptr_proxy = proxy_search (CONFIG_STRING(config_network_proxy_curl));
if (ptr_proxy)
weeurl_set_proxy (curl, ptr_proxy);
}
/* set file in/out from options in hashtable */
if (options)
{
for (i = 0; i < 2; i++)
{
url_file[i].filename = hashtable_get (options, url_file_option[i]);
if (url_file[i].filename)
{
url_file[i].stream = fopen (url_file[i].filename, url_file_mode[i]);
if (!url_file[i].stream)
{
rc = 4;
goto end;
}
curl_easy_setopt (curl, url_file_opt_func[i], url_file_opt_cb[i]);
curl_easy_setopt (curl, url_file_opt_data[i], url_file[i].stream);
}
}
}
/* set other options in hashtable */
hashtable_map (options, &weeurl_option_map_cb, curl);
/* set error buffer */
curl_easy_setopt (curl, CURLOPT_ERRORBUFFER, url_error);
/* perform action! */
curl_rc = curl_easy_perform (curl);
if (curl_rc != CURLE_OK)
{
fprintf (stderr,
_("curl error %d (%s) (URL: \"%s\")\n"),
curl_rc, url_error, url);
rc = 2;
}
/* cleanup */
curl_easy_cleanup (curl);
end:
for (i = 0; i < 2; i++)
{
if (url_file[i].stream)
fclose (url_file[i].stream);
}
return rc;
}
void
network_connect_child (struct t_hook *hook_connect)
{
struct t_proxy *ptr_proxy;
struct addrinfo hints, *res, *res_local, *ptr_res;
char status_str[2], *ptr_address, *status_with_string;
char ipv4_address[INET_ADDRSTRLEN + 1], ipv6_address[INET6_ADDRSTRLEN + 1];
char status_without_string[1 + 5 + 1];
const char *error;
int rc, length, num_written;
res = NULL;
res_local = NULL;
status_str[1] = '\0';
ptr_address = NULL;
ptr_proxy = NULL;
if (HOOK_CONNECT(hook_connect, proxy)
&& HOOK_CONNECT(hook_connect, proxy)[0])
{
ptr_proxy = proxy_search (HOOK_CONNECT(hook_connect, proxy));
if (!ptr_proxy)
{
/* proxy not found */
snprintf (status_without_string, sizeof (status_without_string),
"%c00000", '0' + WEECHAT_HOOK_CONNECT_PROXY_ERROR);
num_written = write (HOOK_CONNECT(hook_connect, child_write),
status_without_string, strlen (status_without_string));
(void) num_written;
return;
}
}
if (ptr_proxy)
{
/* get info about peer */
memset (&hints, 0, sizeof (hints));
hints.ai_family = (CONFIG_BOOLEAN(ptr_proxy->options[PROXY_OPTION_IPV6])) ?
AF_INET6 : AF_INET;
hints.ai_socktype = SOCK_STREAM;
rc = getaddrinfo (CONFIG_STRING(ptr_proxy->options[PROXY_OPTION_ADDRESS]), NULL, &hints, &res);
if (rc != 0)
{
/* address not found */
status_with_string = NULL;
error = gai_strerror (rc);
if (error)
{
length = 1 + 5 + strlen (error) + 1;
status_with_string = malloc (length);
if (status_with_string)
{
snprintf (status_with_string, length, "%c%05d%s",
'0' + WEECHAT_HOOK_CONNECT_ADDRESS_NOT_FOUND,
(int)strlen (error), error);
}
}
if (status_with_string)
{
num_written = write (HOOK_CONNECT(hook_connect, child_write),
status_with_string, strlen (status_with_string));
}
else
{
snprintf (status_without_string, sizeof (status_without_string),
"%c00000", '0' + WEECHAT_HOOK_CONNECT_ADDRESS_NOT_FOUND);
num_written = write (HOOK_CONNECT(hook_connect, child_write),
status_without_string, strlen (status_without_string));
}
if (status_with_string)
free (status_with_string);
(void) num_written;
return;
}
if (!res)
{
/* adddress not found */
snprintf (status_without_string, sizeof (status_without_string),
"%c00000", '0' + WEECHAT_HOOK_CONNECT_ADDRESS_NOT_FOUND);
num_written = write (HOOK_CONNECT(hook_connect, child_write),
status_without_string, strlen (status_without_string));
(void) num_written;
return;
}
if ((CONFIG_BOOLEAN(ptr_proxy->options[PROXY_OPTION_IPV6]) && (res->ai_family != AF_INET6))
|| ((!CONFIG_BOOLEAN(ptr_proxy->options[PROXY_OPTION_IPV6]) && (res->ai_family != AF_INET))))
{
/* IP address not found */
snprintf (status_without_string, sizeof (status_without_string),
"%c00000", '0' + WEECHAT_HOOK_CONNECT_IP_ADDRESS_NOT_FOUND);
num_written = write (HOOK_CONNECT(hook_connect, child_write),
status_without_string, strlen (status_without_string));
(void) num_written;
freeaddrinfo (res);
return;
}
if (CONFIG_BOOLEAN(ptr_proxy->options[PROXY_OPTION_IPV6]))
((struct sockaddr_in6 *)(res->ai_addr))->sin6_port = htons (CONFIG_INTEGER(ptr_proxy->options[PROXY_OPTION_PORT]));
else
((struct sockaddr_in *)(res->ai_addr))->sin_port = htons (CONFIG_INTEGER(ptr_proxy->options[PROXY_OPTION_PORT]));
/* connect to peer */
if (!network_connect (HOOK_CONNECT(hook_connect, sock),
res->ai_addr, res->ai_addrlen))
{
/* connection refused */
snprintf (status_without_string, sizeof (status_without_string),
"%c00000", '0' + WEECHAT_HOOK_CONNECT_CONNECTION_REFUSED);
num_written = write (HOOK_CONNECT(hook_connect, child_write),
status_without_string, strlen (status_without_string));
(void) num_written;
freeaddrinfo (res);
return;
}
if (!network_pass_proxy (HOOK_CONNECT(hook_connect, proxy),
HOOK_CONNECT(hook_connect, sock),
HOOK_CONNECT(hook_connect, address),
HOOK_CONNECT(hook_connect, port)))
{
/* proxy fails to connect to peer */
snprintf (status_without_string, sizeof (status_without_string),
"%c00000", '0' + WEECHAT_HOOK_CONNECT_PROXY_ERROR);
num_written = write (HOOK_CONNECT(hook_connect, child_write),
status_without_string, strlen (status_without_string));
(void) num_written;
freeaddrinfo (res);
return;
}
status_str[0] = '0' + WEECHAT_HOOK_CONNECT_OK;
}
else
{
/* set local hostname/IP if asked by user */
if (HOOK_CONNECT(hook_connect, local_hostname)
&& HOOK_CONNECT(hook_connect, local_hostname[0]))
{
memset (&hints, 0, sizeof(hints));
hints.ai_family = (HOOK_CONNECT(hook_connect, ipv6)) ? AF_INET6 : AF_INET;
hints.ai_socktype = SOCK_STREAM;
rc = getaddrinfo (HOOK_CONNECT(hook_connect, local_hostname),
NULL, &hints, &res_local);
if (rc != 0)
{
/* fails to set local hostname/IP */
status_with_string = NULL;
error = gai_strerror (rc);
if (error)
{
length = 1 + 5 + strlen (error) + 1;
status_with_string = malloc (length);
if (status_with_string)
{
snprintf (status_with_string, length, "%c%05d%s",
'0' + WEECHAT_HOOK_CONNECT_LOCAL_HOSTNAME_ERROR,
(int)strlen (error), error);
}
}
if (status_with_string)
{
num_written = write (HOOK_CONNECT(hook_connect, child_write),
status_with_string, strlen (status_with_string));
}
else
{
snprintf (status_without_string, sizeof (status_without_string),
"%c00000", '0' + WEECHAT_HOOK_CONNECT_LOCAL_HOSTNAME_ERROR);
num_written = write (HOOK_CONNECT(hook_connect, child_write),
status_without_string, strlen (status_without_string));
}
if (status_with_string)
free (status_with_string);
(void) num_written;
if (res_local)
freeaddrinfo (res_local);
return;
}
else if (!res_local
|| (HOOK_CONNECT(hook_connect, ipv6)
&& (res_local->ai_family != AF_INET6))
|| ((!HOOK_CONNECT(hook_connect, ipv6)
&& (res_local->ai_family != AF_INET))))
{
/* fails to set local hostname/IP */
snprintf (status_without_string, sizeof (status_without_string),
"%c00000", '0' + WEECHAT_HOOK_CONNECT_LOCAL_HOSTNAME_ERROR);
num_written = write (HOOK_CONNECT(hook_connect, child_write),
status_without_string, strlen (status_without_string));
(void) num_written;
if (res_local)
freeaddrinfo (res_local);
return;
}
if (bind (HOOK_CONNECT(hook_connect, sock),
res_local->ai_addr, res_local->ai_addrlen) < 0)
{
/* fails to set local hostname/IP */
snprintf (status_without_string, sizeof (status_without_string),
"%c00000", '0' + WEECHAT_HOOK_CONNECT_LOCAL_HOSTNAME_ERROR);
num_written = write (HOOK_CONNECT(hook_connect, child_write),
status_without_string, strlen (status_without_string));
(void) num_written;
if (res_local)
freeaddrinfo (res_local);
return;
}
}
/* get info about peer */
memset (&hints, 0, sizeof(hints));
hints.ai_family = (HOOK_CONNECT(hook_connect, ipv6)) ? AF_INET6 : AF_INET;
hints.ai_socktype = SOCK_STREAM;
rc = getaddrinfo (HOOK_CONNECT(hook_connect, address),
NULL, &hints, &res);
if (rc != 0)
{
status_with_string = NULL;
error = gai_strerror (rc);
if (error)
{
length = 1 + 5 + strlen (error) + 1;
status_with_string = malloc (length);
if (status_with_string)
{
snprintf (status_with_string, length, "%c%05d%s",
'0' + WEECHAT_HOOK_CONNECT_ADDRESS_NOT_FOUND,
(int)strlen (error), error);
}
}
if (status_with_string)
{
num_written = write (HOOK_CONNECT(hook_connect, child_write),
status_with_string, strlen (status_with_string));
}
else
{
snprintf (status_without_string, sizeof (status_without_string),
"%c00000", '0' + WEECHAT_HOOK_CONNECT_ADDRESS_NOT_FOUND);
num_written = write (HOOK_CONNECT(hook_connect, child_write),
status_without_string, strlen (status_without_string));
}
if (status_with_string)
free (status_with_string);
(void) num_written;
if (res)
freeaddrinfo (res);
if (res_local)
freeaddrinfo (res_local);
return;
}
else if (!res)
{
/* address not found */
snprintf (status_without_string, sizeof (status_without_string),
"%c00000", '0' + WEECHAT_HOOK_CONNECT_ADDRESS_NOT_FOUND);
num_written = write (HOOK_CONNECT(hook_connect, child_write),
status_without_string, strlen (status_without_string));
(void) num_written;
if (res)
freeaddrinfo (res);
if (res_local)
freeaddrinfo (res_local);
return;
}
status_str[0] = '0' + WEECHAT_HOOK_CONNECT_IP_ADDRESS_NOT_FOUND;
/* try all IP addresses found, stop when connection is ok */
for (ptr_res = res; ptr_res; ptr_res = ptr_res->ai_next)
{
/* skip IP address if it's not good family */
if ((HOOK_CONNECT(hook_connect, ipv6) && (ptr_res->ai_family != AF_INET6))
|| ((!HOOK_CONNECT(hook_connect, ipv6) && (ptr_res->ai_family != AF_INET))))
continue;
/* connect to peer */
if (HOOK_CONNECT(hook_connect, ipv6))
((struct sockaddr_in6 *)(ptr_res->ai_addr))->sin6_port =
htons (HOOK_CONNECT(hook_connect, port));
else
((struct sockaddr_in *)(ptr_res->ai_addr))->sin_port =
htons (HOOK_CONNECT(hook_connect, port));
if (network_connect (HOOK_CONNECT(hook_connect, sock),
ptr_res->ai_addr, ptr_res->ai_addrlen))
{
status_str[0] = '0' + WEECHAT_HOOK_CONNECT_OK;
if (HOOK_CONNECT(hook_connect, ipv6))
{
if (inet_ntop (AF_INET6,
&((struct sockaddr_in6 *)(ptr_res->ai_addr))->sin6_addr,
ipv6_address,
INET6_ADDRSTRLEN))
{
ptr_address = ipv6_address;
}
}
else
{
if (inet_ntop (AF_INET,
&((struct sockaddr_in *)(ptr_res->ai_addr))->sin_addr,
ipv4_address,
INET_ADDRSTRLEN))
{
ptr_address = ipv4_address;
}
}
break;
}
else
status_str[0] = '0' + WEECHAT_HOOK_CONNECT_CONNECTION_REFUSED;
}
}
if (status_str[0] == '0' + WEECHAT_HOOK_CONNECT_OK)
{
status_with_string = NULL;
if (ptr_address)
{
length = strlen (status_str) + 5 + strlen (ptr_address) + 1;
status_with_string = malloc (length);
if (status_with_string)
{
snprintf (status_with_string, length, "%s%05d%s",
status_str, (int)strlen (ptr_address), ptr_address);
}
}
if (status_with_string)
{
num_written = write (HOOK_CONNECT(hook_connect, child_write),
status_with_string, strlen (status_with_string));
(void) num_written;
free (status_with_string);
}
else
{
snprintf (status_without_string, sizeof (status_without_string),
"%s00000", status_str);
num_written = write (HOOK_CONNECT(hook_connect, child_write),
status_without_string, strlen (status_without_string));
(void) num_written;
}
}
else
{
snprintf (status_without_string, sizeof (status_without_string),
"%s00000", status_str);
num_written = write (HOOK_CONNECT(hook_connect, child_write),
status_without_string, strlen (status_without_string));
(void) num_written;
}
if (res)
freeaddrinfo (res);
if (res_local)
freeaddrinfo (res_local);
}