Пример #1
0
/* 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;
    }

}
Пример #2
0
/*
 * Connect to a DAV server
 * This function sets the flag _connected if the connection is established
 * and returns if the flag is set, so calling it frequently is save.
 */
static int dav_connect(const char *base_url) {
    int useSSL = 0;
    int rc;
    char protocol[6] = {'\0'};
    char uaBuf[256];
    char *path = NULL;
    char *scheme = NULL;
    char *host = NULL;
    unsigned int port = 0;
    int proxystate = -1;

    if (_connected) {
        return 0;
    }

    rc = c_parse_uri( base_url, &scheme, &dav_session.user, &dav_session.pwd, &host, &port, &path );
    if( rc < 0 ) {
        DEBUG_WEBDAV("Failed to parse uri %s", base_url );
        goto out;
    }

    DEBUG_WEBDAV("* scheme %s", scheme );
    DEBUG_WEBDAV("* host %s", host );
    DEBUG_WEBDAV("* port %u", port );
    DEBUG_WEBDAV("* path %s", path );

    if( strcmp( scheme, "owncloud" ) == 0 ) {
        strcpy( protocol, "http");
    } else if( strcmp( scheme, "ownclouds" ) == 0 ) {
        strcpy( protocol, "https");
        useSSL = 1;
    } else {
        DEBUG_WEBDAV("Invalid scheme %s, go outa here!", scheme );
        rc = -1;
        goto out;
    }

    DEBUG_WEBDAV("* user %s", dav_session.user ? dav_session.user : "");

    if (port == 0) {
        port = ne_uri_defaultport(protocol);
    }

#if 0
    rc = ne_sock_init();
    DEBUG_WEBDAV("ne_sock_init: %d", rc );
    if (rc < 0) {
        rc = -1;
        goto out;
    }
#endif

    dav_session.ctx = ne_session_create( protocol, host, port);

    if (dav_session.ctx == NULL) {
        DEBUG_WEBDAV("Session create with protocol %s failed", protocol );
        rc = -1;
        goto out;
    }

    if (dav_session.read_timeout == 0)
        dav_session.read_timeout = 300;  // set 300 seconds as default.

    ne_set_read_timeout(dav_session.ctx, dav_session.read_timeout);

    snprintf( uaBuf, sizeof(uaBuf), "Mozilla/5.0 (%s) csyncoC/%s",
              get_platform(), CSYNC_STRINGIFY( LIBCSYNC_VERSION ));
    ne_set_useragent( dav_session.ctx, uaBuf);
    ne_set_server_auth(dav_session.ctx, ne_auth, 0 );

    if( useSSL ) {
        if (!ne_has_support(NE_FEATURE_SSL)) {
            DEBUG_WEBDAV("Error: SSL is not enabled.");
            rc = -1;
            goto out;
        }

        ne_ssl_trust_default_ca( dav_session.ctx );
        ne_ssl_set_verify( dav_session.ctx, verify_sslcert, 0 );
    }

    /* Hook called when a request is created. It sets the proxy connection header. */
    ne_hook_create_request( dav_session.ctx, request_created_hook, NULL );
    /* Hook called after response headers are read. It gets the Session ID. */
    ne_hook_post_headers( dav_session.ctx, post_request_hook, NULL );
    /* Hook called before a request is sent. It sets the cookies. */
    ne_hook_pre_send( dav_session.ctx, pre_send_hook, NULL );
    /* Hook called after request is dispatched. Used for handling possible redirections. */
    ne_hook_post_send( dav_session.ctx, post_send_hook, NULL );

    /* Proxy support */
    proxystate = configureProxy( dav_session.ctx );
    if( proxystate < 0 ) {
        DEBUG_WEBDAV("Error: Proxy-Configuration failed.");
    } else if( proxystate > 0 ) {
        ne_set_proxy_auth( dav_session.ctx, ne_proxy_auth, 0 );
    }

    _connected = 1;
    rc = 0;
out:
    SAFE_FREE(path);
    SAFE_FREE(host);
    SAFE_FREE(scheme);
    return rc;
}