Implement setters and getters for the base URL prefix used and also implement a session ID getter while we're at it. Signed-off-by: Jo-Philipp Wich <jo@mein.io>
209 lines
4.8 KiB
JavaScript
209 lines
4.8 KiB
JavaScript
'use strict';
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var rpcRequestRegistry = {},
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rpcRequestBatch = null,
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rpcRequestID = 1,
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rpcSessionID = L.env.sessionid || '00000000000000000000000000000000',
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rpcBaseURL = L.url('admin/ubus');
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return L.Class.extend({
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call: function(req, cbFn) {
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var cb = cbFn.bind(this, req),
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q = '';
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if (Array.isArray(req)) {
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if (req.length == 0)
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return Promise.resolve([]);
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for (var i = 0; i < req.length; i++)
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q += '%s%s.%s'.format(
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q ? ';' : '/',
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req[i].params[1],
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req[i].params[2]
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);
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}
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else {
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q += '/%s.%s'.format(req.params[1], req.params[2]);
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}
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return L.Request.post(rpcBaseURL + q, req, {
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timeout: (L.env.rpctimeout || 5) * 1000,
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credentials: true
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}).then(cb);
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},
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handleListReply: function(req, msg) {
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var list = msg.result;
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/* verify message frame */
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if (typeof(msg) != 'object' || msg.jsonrpc != '2.0' || !msg.id || !Array.isArray(list))
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list = [ ];
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req.resolve(list);
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},
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handleCallReply: function(reqs, res) {
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var type = Object.prototype.toString,
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data = [],
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msg = null;
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if (!res.ok)
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L.error('RPCError', 'RPC call failed with HTTP error %d: %s',
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res.status, res.statusText || '?');
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msg = res.json();
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if (!Array.isArray(reqs)) {
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msg = [ msg ];
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reqs = [ reqs ];
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}
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for (var i = 0; i < msg.length; i++) {
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/* fetch related request info */
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var req = rpcRequestRegistry[reqs[i].id];
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if (typeof(req) != 'object')
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throw 'No related request for JSON response';
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/* fetch response attribute and verify returned type */
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var ret = undefined;
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/* verify message frame */
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if (typeof(msg[i]) == 'object' && msg[i].jsonrpc == '2.0') {
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if (typeof(msg[i].error) == 'object' && msg[i].error.code && msg[i].error.message)
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req.reject(new Error('RPC call failed with error %d: %s'
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.format(msg[i].error.code, msg[i].error.message || '?')));
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else if (Array.isArray(msg[i].result) && msg[i].result[0] == 0)
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ret = (msg[i].result.length > 1) ? msg[i].result[1] : msg[i].result[0];
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}
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else {
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req.reject(new Error('Invalid message frame received'));
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}
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if (req.expect) {
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for (var key in req.expect) {
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if (ret != null && key != '')
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ret = ret[key];
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if (ret == null || type.call(ret) != type.call(req.expect[key]))
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ret = req.expect[key];
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break;
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}
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}
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/* apply filter */
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if (typeof(req.filter) == 'function') {
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req.priv[0] = ret;
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req.priv[1] = req.params;
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ret = req.filter.apply(this, req.priv);
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}
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req.resolve(ret);
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/* store response data */
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if (typeof(req.index) == 'number')
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data[req.index] = ret;
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else
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data = ret;
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/* delete request object */
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delete rpcRequestRegistry[reqs[i].id];
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}
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return Promise.resolve(data);
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},
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list: function() {
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var msg = {
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jsonrpc: '2.0',
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id: rpcRequestID++,
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method: 'list',
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params: arguments.length ? this.varargs(arguments) : undefined
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};
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return this.call(msg, this.handleListReply);
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},
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batch: function() {
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if (!Array.isArray(rpcRequestBatch))
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rpcRequestBatch = [ ];
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},
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flush: function() {
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if (!Array.isArray(rpcRequestBatch))
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return Promise.resolve([]);
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var req = rpcRequestBatch;
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rpcRequestBatch = null;
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/* call rpc */
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return this.call(req, this.handleCallReply);
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},
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declare: function(options) {
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return Function.prototype.bind.call(function(rpc, options) {
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var args = this.varargs(arguments, 2);
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return new Promise(function(resolveFn, rejectFn) {
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/* build parameter object */
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var p_off = 0;
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var params = { };
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if (Array.isArray(options.params))
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for (p_off = 0; p_off < options.params.length; p_off++)
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params[options.params[p_off]] = args[p_off];
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/* all remaining arguments are private args */
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var priv = [ undefined, undefined ];
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for (; p_off < args.length; p_off++)
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priv.push(args[p_off]);
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/* store request info */
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var req = rpcRequestRegistry[rpcRequestID] = {
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expect: options.expect,
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filter: options.filter,
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resolve: resolveFn,
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reject: rejectFn,
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params: params,
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priv: priv
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};
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/* build message object */
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var msg = {
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jsonrpc: '2.0',
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id: rpcRequestID++,
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method: 'call',
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params: [
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rpcSessionID,
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options.object,
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options.method,
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params
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]
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};
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/* when a batch is in progress then store index in request data
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* and push message object onto the stack */
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if (Array.isArray(rpcRequestBatch))
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req.index = rpcRequestBatch.push(msg) - 1;
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/* call rpc */
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else
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rpc.call(msg, rpc.handleCallReply);
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});
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}, this, this, options);
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},
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getSessionID: function() {
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return rpcSessionID;
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},
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setSessionID: function(sid) {
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rpcSessionID = sid;
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},
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getBaseURL: function() {
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return rpcBaseURL;
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},
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setBaseURL: function(url) {
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rpcBaseURL = url;
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}
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});
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