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Add Binary paylaod option to Http request node

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Also add JSON parse option to output
Allow user to select override using msg.method to stop getting warning.
Fix to close #399
This commit is contained in:
Dave C-J 2014-12-09 14:40:03 +00:00
parent 6fc3aab907
commit 27ef7d972f
2 changed files with 40 additions and 10 deletions
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21
nodes/core/io/21-httpin.html
View File

@ -91,6 +91,7 @@
<option value="POST">POST</option>
<option value="PUT">PUT</option>
<option value="DELETE">DELETE</option>
<option value="use">- set by msg.method -</option>
</select>
</div>
<div class="form-row">
@ -110,10 +111,19 @@
<label for="node-input-password"><i class="fa fa-lock"></i> Password</label>
<input type="password" id="node-input-password">
</div>
<div class="form-row">
<label for="node-input-ret"><i class="fa fa-arrow-left"></i> Return</label>
<select type="text" id="node-input-ret" style="width:72%;">
<option value="txt">a UTF-8 string</option>
<option value="bin">a binary buffer</option>
<option value="obj">a parsed JSON object</option>
</select>
</div>
<div class="form-row">
<label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
<input type="text" id="node-input-name" placeholder="Name">
</div>
<div class="form-tips" id="tip-json" hidden>Tip: If the JSON parse fails the fetched string is returned as-is.</div>
</script>
<script type="text/x-red" data-help-name="http request">
@ -212,6 +222,7 @@
defaults: {
name: {value:""},
method:{value:"GET"},
ret: {value:"txt"},
url:{value:""},
//user -> credentials
//pass -> credentials
@ -248,6 +259,14 @@
$('#node-input-password').val('');
}
});
},
$("#node-input-ret").change(function() {
if ($("#node-input-ret").val() === "obj") {
$("#tip-json").show();
} else {
$("#tip-json").hide();
}
});
}
});
</script>

27
nodes/core/io/21-httpin.js
View File

@ -23,7 +23,6 @@ module.exports = function(RED) {
var getBody = require('raw-body');
var mustache = require("mustache");
var querystring = require("querystring");
var cors = require('cors');
var jsonParser = express.json();
var urlencParser = express.urlencoded();
@ -150,6 +149,7 @@ module.exports = function(RED) {
var nodeUrl = n.url;
var isTemplatedUrl = (nodeUrl||"").indexOf("{{") != -1;
var nodeMethod = n.method || "GET";
this.ret = n.ret || "txt";
var node = this;
this.on("input",function(msg) {
node.status({fill:"blue",shape:"dot",text:"requesting"});
@ -170,15 +170,19 @@ module.exports = function(RED) {
}
var method;
if (msg.method) {
if (n.method && (n.method !== msg.method)) {
node.warn("Deprecated: msg properties should not override set node properties. See bit.ly/nr-override-msg-props");
if (msg.method) { // if method set in msg
if (n.method && (n.method !== "use")) { // warn if override option not set
node.warn("Deprecated: msg properties should not override fixed node properties. Use explicit override option. See bit.ly/nr-override-msg-props");
}
method = msg.method.toUpperCase();
method = msg.method.toUpperCase(); // but use it anyway
} else {
method = nodeMethod.toUpperCase();
if (n.method !== "use") {
method = nodeMethod.toUpperCase(); // otherwise use the selected method
} else { // unless they selected override
method = "GET"; // - in which case default to GET
}
//node.log(method+" : "+url);
}
node.log(method+" : "+url);
var opts = urllib.parse(url);
opts.method = method;
opts.headers = {};
@ -221,7 +225,7 @@ module.exports = function(RED) {
}
var req = ((/^https/.test(url))?https:http).request(opts,function(res) {
res.setEncoding('utf8');
(node.ret === "bin") ? res.setEncoding('binary') : res.setEncoding('utf8');
msg.statusCode = res.statusCode;
msg.headers = res.headers;
msg.payload = "";
@ -229,6 +233,13 @@ module.exports = function(RED) {
msg.payload += chunk;
});
res.on('end',function() {
if (node.ret === "bin") {
msg.payload = new Buffer(msg.payload,"binary");
}
else if (node.ret === "obj") {
try { msg.payload = JSON.parse(msg.payload); }
catch(e) { node.warn("JSON parse error"); }
}
node.send(msg);
node.status({});
});