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node-red/red/api/flows.js
2016-10-09 22:02:40 +01:00

84 lines
3.3 KiB
JavaScript

/**
* Copyright 2014, 2016 IBM Corp.
*
* Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
**/
var log;
var redNodes;
var settings;
module.exports = {
init: function(runtime) {
settings = runtime.settings;
redNodes = runtime.nodes;
log = runtime.log;
},
get: function(req,res) {
var version = req.get("Node-RED-API-Version")||"v1";
if (version === "v1") {
log.audit({event: "flows.get",version:"v1"},req);
res.json(redNodes.getFlows().flows);
} else if (version === "v2") {
log.audit({event: "flows.get",version:"v2"},req);
res.json(redNodes.getFlows());
} else {
log.audit({event: "flows.get",version:version,error:"bad_api_version"},req);
res.status(400).json({error:"bad_api_version"});
}
},
post: function(req,res) {
var version = req.get("Node-RED-API-Version")||"v1";
var flows = req.body;
var deploymentType = req.get("Node-RED-Deployment-Type")||"full";
log.audit({event: "flows.set",type:deploymentType,version:version},req);
if (deploymentType === 'reload') {
redNodes.loadFlows().then(function() {
res.status(204).end();
}).otherwise(function(err) {
log.warn(log._("api.flows.error-reload",{message:err.message}));
log.warn(err.stack);
res.status(500).json({error:"unexpected_error", message:err.message});
});
} else {
var flowConfig = flows;
if (version === "v2") {
flowConfig = flows.flows;
if (flows.hasOwnProperty('rev')) {
var currentVersion = redNodes.getFlows().rev;
if (currentVersion !== flows.rev) {
//TODO: log warning
return res.status(409).json({error:"version_mismatch"});
}
}
} else if (version !== 'v1') {
log.audit({event: "flows.set",version:version,error:"bad_api_version"},req);
return res.status(400).json({error:"bad_api_version"});
}
redNodes.setFlows(flowConfig,deploymentType).then(function(flowId) {
if (version === "v1") {
res.status(204).end();
} else if (version === "v2") {
res.json({rev:flowId});
} else {
// TODO: invalid version
}
}).otherwise(function(err) {
log.warn(log._("api.flows.error-save",{message:err.message}));
log.warn(err.stack);
res.status(500).json({error:"unexpected_error", message:err.message});
});
}
}
}