uerr_t ftp_get_url_info_from_http_proxy(connection_t * connection)
{
uerr_t err;
int remote_port_len;
char *user, *passwd, *www_auth = NULL, *proxy_auth =
NULL, *pragma_no_cache = NULL;
char *request, *remote_port;
netrc_entry *netrc_ent;
memset(&connection->hs, 0, sizeof(connection->hs));
err = connect_to_server(&connection->data_sock,
connection->ftp_proxy->proxy_url.host,
connection->ftp_proxy->proxy_url.port,
&connection->xfer_timeout);
if (err != NOCONERROR)
{
connection_show_message(connection, _("Error connecting to %s"),
connection->ftp_proxy->proxy_url.host);
return err;
}
user = connection->u.user;
passwd = connection->u.passwd;
/* Use .netrc if asked to do so. */
if (connection->use_netrc == TRUE)
{
netrc_ent = search_netrc(libprozrtinfo.netrc_list, connection->u.host);
if (netrc_ent != NULL)
{
user = netrc_ent->account;
passwd = netrc_ent->password;
}
}
user = user ? user : "";
passwd = passwd ? passwd : "";
if (strlen(user) || strlen(passwd))
{
/* Construct the necessary header. */
www_auth = get_basic_auth_str(user, passwd, "Authorization");
proz_debug(_("Authenticating as user %s password %s"), user, passwd);
proz_debug(_("Authentification string=%s"), www_auth);
} else
www_auth = 0;
if (strlen(connection->ftp_proxy->username)
|| strlen(connection->ftp_proxy->passwd))
proxy_auth =
get_basic_auth_str(connection->ftp_proxy->username,
connection->ftp_proxy->passwd,
"Proxy-Authorization");
remote_port = (char *) alloca(64);
remote_port_len = sprintf(remote_port, ":%d", connection->u.port);
if (http_use_proxy(connection)
&& (connection->http_no_cache || connection->attempts > 0))
{
pragma_no_cache = (char *) alloca(21);
sprintf(pragma_no_cache, "Pragma: no-cache\r\n");
}
/*Referrer TAG should not be needed in FTP through HTTP proxy..right */
request = (char *) alloca(strlen(connection->u.url)
+ strlen(connection->user_agent)
+ strlen(connection->u.host) + remote_port_len
+ (www_auth ? strlen(www_auth) : 0)
+ (proxy_auth ? strlen(proxy_auth) : 0)
+ 64
+
(pragma_no_cache ? strlen(pragma_no_cache) :
0));
sprintf(request,
"GET %s HTTP/1.0\r\nUser-Agent: %s\r\nHost: %s%s\r\nAccept: */*\r\n%s%s%s\r\n",
connection->u.url, connection->user_agent, connection->u.host,
remote_port,
www_auth ? www_auth : "", proxy_auth ? proxy_auth : "",
pragma_no_cache ? pragma_no_cache : "");
proz_debug("HTTP request = %s", request);
err = http_fetch_headers(connection, &connection->hs, request);
close_sock(&connection->data_sock);
/*Convert the error code to the equivalent FTP one if possible */
if (err == HOK)
{
connection->main_file_size = connection->hs.contlen;
if (connection->hs.accept_ranges == 1)
connection->resume_support = TRUE;
else if (connection->hs.accept_ranges == -1)
connection->resume_support = FALSE;
return FTPOK;
}
if (err == HAUTHREQ)
return FTPLOGREFUSED;
else if (err == HTTPNSFOD)
return FTPNSFOD;
/* connection->file_type = REGULAR_FILE; */
return FTPERR;
}
/* FIXME: Leaky as a bucket */
void open_connection(const char *url)
{
char *proxy_host = get_option(opt_proxy), *pnt;
ne_server_capabilities caps;
int ret, use_ssl = 0;
ne_session *sess;
if (session.connected) {
close_connection();
} else {
ne_uri_free(&session.uri);
if (session.lastwp) {
ne_free(session.lastwp);
session.lastwp = NULL;
}
}
/* Single argument: see whether we have a path or scheme */
if (strchr(url, '/') == NULL) {
/* No path, no scheme -> just a hostname */
pnt = strchr(url, ':');
if (pnt != NULL) {
*pnt++ = '\0';
session.uri.port = atoi(pnt);
} else {
session.uri.port = 80;
}
session.uri.host = ne_strdup(url);
session.uri.scheme = ne_strdup("http");
} else {
/* Parse the URL */
if (ne_uri_parse(url, &session.uri) || session.uri.host == NULL) {
printf(_("Could not parse URL `%s'\n"), url);
return;
}
if (session.uri.scheme == NULL)
session.uri.scheme = ne_strdup("http");
if (!session.uri.port)
session.uri.port = ne_uri_defaultport(session.uri.scheme);
if (strcasecmp(session.uri.scheme, "https") == 0) {
if (!ne_has_support(NE_FEATURE_SSL)) {
printf(_("SSL is not enabled.\n"));
return;
}
use_ssl = 1;
}
}
session.sess = ne_session_create(session.uri.scheme, session.uri.host,
session.uri.port);
sess = session.sess;
if (use_ssl && setup_ssl()) {
return;
}
ne_lockstore_register(session.locks, sess);
ne_redirect_register(sess);
ne_set_notifier(sess, notifier, NULL);
if (session.uri.path == NULL) {
session.uri.path = ne_strdup("/");
} else {
if (!ne_path_has_trailing_slash(session.uri.path)) {
pnt = ne_concat(session.uri.path, "/", NULL);
free(session.uri.path);
session.uri.path = pnt;
}
}
/* Get the proxy details */
if (proxy_host != NULL) {
if (get_option(opt_proxy_port) != NULL) {
proxy_port = atoi(get_option(opt_proxy_port));
} else {
proxy_port = 8080;
}
proxy_hostname = proxy_host;
}
#ifdef ENABLE_NETRC
{
netrc_entry *found;
found = search_netrc(netrc_list, session.uri.host);
if (found != NULL) {
if (found->account && found->password) {
server_username = found->account;
server_password = found->password;
}
}
}
#endif /* ENABLE_NETRC */
#ifdef NE_SESSFLAG_EXPECT100
ne_set_session_flag(session.sess, NE_SESSFLAG_EXPECT100, get_bool_option(opt_expect100));
#endif /* NE_SESSFLAG_EXPECT100 */
session.connected = 0;
ne_set_useragent(session.sess, "cadaver/" PACKAGE_VERSION);
ne_set_server_auth(session.sess, supply_creds_server, NULL);
ne_set_proxy_auth(session.sess, supply_creds_proxy, NULL);
if (proxy_host) {
ne_session_proxy(session.sess, proxy_hostname, proxy_port);
}
ret = ne_options(session.sess, session.uri.path, &caps);
switch (ret) {
case NE_OK:
session.connected = true;
if (set_path(session.uri.path)) {
close_connection();
}
break;
case NE_CONNECT:
if (proxy_host) {
printf(_("Could not connect to `%s' on port %d:\n%s\n"),
proxy_hostname, proxy_port, ne_get_error(session.sess));
} else {
printf(_("Could not connect to `%s' on port %d:\n%s\n"),
session.uri.host, session.uri.port, ne_get_error(session.sess));
}
break;
case NE_LOOKUP:
puts(ne_get_error(session.sess));
break;
default:
printf(_("Could not open collection:\n%s\n"),
ne_get_error(session.sess));
break;
}
}
/******************************************************************************
...
******************************************************************************/
uerr_t proz_http_get_url_info(connection_t * connection)
{
uerr_t err;
int remote_port_len;
char *user, *passwd, *www_auth = NULL, *proxy_auth = NULL,
*referer = NULL, *location = NULL, *pragma_no_cache = NULL;
char *request, *remote_port;
netrc_entry *netrc_ent;
memset(&connection->hs, 0, sizeof(connection->hs));
if (http_use_proxy(connection))
{
connection_show_message(connection, _("Connecting to %s"),
connection->http_proxy->proxy_url.host);
err = connect_to_server(&connection->data_sock,
connection->http_proxy->proxy_url.host,
connection->http_proxy->proxy_url.port,
&connection->xfer_timeout);
if (err != NOCONERROR)
{
connection_show_message(connection, _("Error connecting to %s"),
connection->http_proxy->proxy_url.host);
return err;
}
} else
{
connection_show_message(connection, _("Connecting to %s"),
connection->u.host);
err = connect_to_server(&connection->data_sock, connection->u.host,
connection->u.port, &connection->xfer_timeout);
if (err != NOCONERROR)
{
connection_show_message(connection, _("Error connecting to %s"),
connection->u.host);
return err;
}
}
user = connection->u.user;
passwd = connection->u.passwd;
/* Use .netrc if asked to do so. */
if (connection->use_netrc == TRUE)
{
netrc_ent = search_netrc(libprozrtinfo.netrc_list, connection->u.host);
if (netrc_ent != NULL)
{
user = netrc_ent->account;
passwd = netrc_ent->password;
}
}
user = user ? user : "";
passwd = passwd ? passwd : "";
if (strlen(user) || strlen(passwd))
{
/* Construct the necessary header. */
www_auth = get_basic_auth_str(user, passwd, "Authorization");
proz_debug(_("Authenticating as user %s password %s"), user, passwd);
proz_debug(_("Authentification string=%s"), www_auth);
} else
www_auth = 0;
if (http_use_proxy(connection))
{
if (strlen(connection->http_proxy->username)
|| strlen(connection->http_proxy->passwd))
proxy_auth =
get_basic_auth_str(connection->http_proxy->username,
connection->http_proxy->passwd,
"Proxy-Authorization");
}
if (connection->u.port == 80)
{
remote_port = NULL;
remote_port_len = 0;
} else
{
remote_port = (char *) alloca(64);
remote_port_len = sprintf(remote_port, ":%d", connection->u.port);
}
if (connection->u.referer)
{
referer = (char *) alloca(13 + strlen(connection->u.referer));
sprintf(referer, "Referer: %s\r\n", connection->u.referer);
}
/* If we go through a proxy the request for the URL is different */
if (http_use_proxy(connection))
{
location = (char *) alloca(strlen(connection->u.url) + 1);
strcpy(location, connection->u.url);
} else
{
location = (char *) alloca(strlen(connection->u.path) + 1);
strcpy(location, connection->u.path);
}
/*Use no-cache directive for proxy servers? */
if (http_use_proxy(connection)
&& (connection->http_no_cache || connection->attempts > 0))
{
pragma_no_cache = (char *) alloca(21);
sprintf(pragma_no_cache, "Pragma: no-cache\r\n");
}
request = (char *) alloca(strlen(location)
+ strlen(connection->user_agent)
+ strlen(connection->u.host) + remote_port_len
+ (referer ? strlen(referer) : 0)
+ (www_auth ? strlen(www_auth) : 0)
+ (proxy_auth ? strlen(proxy_auth) : 0) + 64
+
(pragma_no_cache ? strlen(pragma_no_cache) :
0));
sprintf(request,
"GET %s HTTP/1.0\r\nUser-Agent: %s\r\nHost: %s%s\r\nAccept: */*\r\n%s%s%s%s\r\n",
location, connection->user_agent, connection->u.host,
remote_port ? remote_port : "",
referer ? referer : "",
www_auth ? www_auth : "", proxy_auth ? proxy_auth : "",
pragma_no_cache ? pragma_no_cache : "");
proz_debug("HTTP request = %s", request);
connection_show_message(connection, _("Sending HTTP request"));
err = http_fetch_headers(connection, &connection->hs, request);
close_sock(&connection->data_sock);
if (err == HOK)
{
connection->main_file_size = connection->hs.contlen;
if (connection->hs.accept_ranges == 1)
connection->resume_support = TRUE;
else if (connection->hs.accept_ranges == -1)
connection->resume_support = FALSE;
}
connection->file_type = REGULAR_FILE;
return err;
}
