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node-red/red/api/nodes.js

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/**
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* Copyright 2014, 2015 IBM Corp.
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*
* 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 redNodes = require("../nodes");
var comms = require("../comms");
var server = require("../server");
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var log = require("../log");
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var settings = require("../settings");
module.exports = {
getAll: function(req,res) {
if (req.get("accept") == "application/json") {
log.audit({event: "nodes.list.get"},req);
res.json(redNodes.getNodeList());
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} else {
log.audit({event: "nodes.configs.get"},req);
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res.send(redNodes.getNodeConfigs());
}
},
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post: function(req,res) {
if (!settings.available()) {
log.audit({event: "nodes.install",error:"settings_unavailable"},req);
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res.json(400,{error:"settings_unavailable", message:"Settings unavailable"});
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return;
}
var node = req.body;
var promise;
if (node.module) {
var module = redNodes.getModuleInfo(node.module);
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if (module) {
log.audit({event: "nodes.install",module:node.module,error:"module_already_loaded"},req);
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res.json(400,{error:"module_already_loaded", message:"Module already loaded"});
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return;
}
promise = server.installModule(node.module);
} else if (node.file) {
promise = server.installNode(node.file);
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} else {
log.audit({event: "nodes.install",module:node.module,error:"invalid_request"},req);
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res.json(400,{error:"invalid_request", message:"Invalid request"});
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return;
}
promise.then(function(info) {
if (node.module) {
log.audit({event: "nodes.install",module:node.module},req);
res.json(redNodes.getModuleInfo(node.module));
} else if (node.file) {
log.audit({event: "nodes.install",file:node.file},req);
res.json(info.nodes[0]);
}
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}).otherwise(function(err) {
if (err.code === 404) {
log.audit({event: "nodes.install",module:node.module,file:node.file,error:"not_found"},req);
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res.send(404);
} else if (err.code) {
log.audit({event: "nodes.install",module:node.module,error:err.code},req);
res.json(400,{error:err.code, message:err.message});
} else {
log.audit({event: "nodes.install",module:node.module,file:node.file,error:err.code||"unexpected_error",message:err.toString()},req);
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res.json(400,{error:err.code||"unexpected_error", message:err.toString()});
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}
});
},
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delete: function(req,res) {
if (!settings.available()) {
log.audit({event: "nodes.remove",error:"settings_unavailable"},req);
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res.json(400,{error:"settings_unavailable", message:"Settings unavailable"});
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return;
}
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var mod = req.params.mod;
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try {
var promise = null;
var module = redNodes.getModuleInfo(mod);
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if (!module) {
log.audit({event: "nodes.remove",module:mod,error:"not_found"},req);
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res.send(404);
return;
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} else {
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promise = server.uninstallModule(mod);
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}
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promise.then(function() {
log.audit({event: "nodes.remove",module:mod},req);
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res.send(204);
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}).otherwise(function(err) {
log.audit({event: "nodes.remove",module:mod,error:err.code||"unexpected_error",message:err.toString()},req);
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res.json(400,{error:err.code||"unexpected_error", message:err.toString()});
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});
} catch(err) {
log.audit({event: "nodes.remove",module:mod,error:err.code||"unexpected_error",message:err.toString()},req);
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res.json(400,{error:err.code||"unexpected_error", message:err.toString()});
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}
},
getSet: function(req,res) {
var id = req.params.mod + "/" + req.params.set;
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var result = null;
if (req.get("accept") === "application/json") {
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result = redNodes.getNodeInfo(id);
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if (result) {
log.audit({event: "nodes.info.get",id:id},req);
delete result.loaded;
res.send(result);
} else {
log.audit({event: "nodes.info.get",id:id,error:"not_found"},req);
res.send(404);
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}
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} else {
result = redNodes.getNodeConfig(id);
if (result) {
log.audit({event: "nodes.config.get",id:id},req);
res.send(result);
} else {
log.audit({event: "nodes.config.get",id:id,error:"not_found"},req);
res.send(404);
}
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}
},
getModule: function(req,res) {
var module = req.params.mod;
var result = redNodes.getModuleInfo(module);
if (result) {
log.audit({event: "nodes.module.get",module:module},req);
res.json(result);
} else {
log.audit({event: "nodes.module.get",module:module,error:"not_found"},req);
res.send(404);
}
},
putSet: function(req,res) {
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if (!settings.available()) {
log.audit({event: "nodes.info.set",error:"settings_unavailable"},req);
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res.json(400,{error:"settings_unavailable", message:"Settings unavailable"});
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return;
}
var body = req.body;
if (!body.hasOwnProperty("enabled")) {
log.audit({event: "nodes.info.set",error:"invalid_request"},req);
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res.json(400,{error:"invalid_request", message:"Invalid request"});
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return;
}
try {
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var id = req.params.mod + "/" + req.params.set;
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var node = redNodes.getNodeInfo(id);
var info;
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if (!node) {
log.audit({event: "nodes.info.set",id:id,error:"not_found"},req);
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res.send(404);
} else {
delete node.loaded;
putNode(node, body.enabled).then(function(result) {
log.audit({event: "nodes.info.set",id:id,enabled:body.enabled},req);
res.json(result);
});
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}
} catch(err) {
log.audit({event: "nodes.info.set",id:id,enabled:body.enabled,error:err.code||"unexpected_error",message:err.toString()},req);
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res.json(400,{error:err.code||"unexpected_error", message:err.toString()});
}
},
putModule: function(req,res) {
if (!settings.available()) {
log.audit({event: "nodes.module.set",error:"settings_unavailable"},req);
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res.json(400,{error:"settings_unavailable", message:"Settings unavailable"});
return;
}
var body = req.body;
if (!body.hasOwnProperty("enabled")) {
log.audit({event: "nodes.module.set",error:"invalid_request"},req);
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res.json(400,{error:"invalid_request", message:"Invalid request"});
return;
}
try {
var mod = req.params.mod;
var module = redNodes.getModuleInfo(mod);
if (!module) {
log.audit({event: "nodes.module.set",module:mod,error:"not_found"},req);
return res.send(404);
}
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var nodes = module.nodes;
var promises = [];
for (var i = 0; i < nodes.length; ++i) {
promises.push(putNode(nodes[i],body.enabled));
}
when.settle(promises).then(function() {
res.json(redNodes.getModuleInfo(mod));
});
} catch(err) {
log.audit({event: "nodes.module.set",module:mod,enabled:body.enabled,error:err.code||"unexpected_error",message:err.toString()},req);
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res.json(400,{error:err.code||"unexpected_error", message:err.toString()});
}
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}
};
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function putNode(node, enabled) {
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var info;
var promise;
if (!node.err && node.enabled === enabled) {
promise = when.resolve(node);
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} else {
if (enabled) {
promise = redNodes.enableNode(node.id);
} else {
promise = redNodes.disableNode(node.id);
}
return promise.then(function(info) {
if (info.enabled === enabled && !info.err) {
comms.publish("node/"+(enabled?"enabled":"disabled"),info,false);
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log.info(" "+log._("api.nodes."+(enabled?"enabled":"disabled")));
for (var i=0;i<info.types.length;i++) {
log.info(" - "+info.types[i]);
}
} else if (enabled && info.err) {
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log.warn(log._("api.nodes.error-enable"));
log.warn(" - "+info.name+" : "+info.err);
}
return info;
});
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}
return promise;
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}