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| 'use strict';
var debug = require('debug')('swagger:swagger_params_parser');
var debugContent = require('debug')('swagger:content');
var path = require('path');
var helpers = require('../lib/helpers');
var bodyParser = require('body-parser');
var async = require('async');
var _ = require('lodash');
module.exports = function create(fittingDef, bagpipes) {
debug('config: %j', fittingDef);
_.defaults(fittingDef, {
jsonOptions: {
type: ['json', '*+json']
},
urlencodedOptions: {
extended: false
},
multerOptions: {
inMemory: true
},
textOptions: {
type: '*/*'
}
});
return function swagger_params_parser(context, next) {
debug('exec');
var req = context.request;
parseRequest(req, fittingDef, function(err) {
Iif (err) { /* istanbul ignore next */ return next(err); }
var params = req.swagger.params = {};
req.swagger.operation.parameterObjects.forEach(function(parameter) {
params[parameter.name] = parameter.getValue(req); // note: we do not check for errors here
});
next(null, params);
});
}
};
function parseRequest(req, fittingDef, cb) {
Iif (req.query && req.body && req.files) { return cb(); }
var shouldParseBody = false;
var shouldParseForm = false;
var shouldParseQuery = false;
var multFields = [];
req.swagger.operation.parameterObjects.forEach(function(parameter) {
switch (parameter.in) {
case 'body':
shouldParseBody = true;
break;
case 'formData':
shouldParseForm = true;
if (parameter.type === 'file') {
multFields.push({ name: parameter.name });
}
break;
case 'query':
shouldParseQuery = true;
break;
}
});
if (!req.query && shouldParseQuery) { helpers.queryString(req); }
if (req.body || (!shouldParseBody && !shouldParseForm)) { return cb(); }
var res = null;
debugContent('parsing req.body for content-type: %s', req.headers['content-type']);
async.series([
function parseMultipart(cb) {
if (multFields.length === 0) { return cb(); }
var mult = require('multer')(fittingDef.multerOptions);
mult.fields(multFields)(req, res, function(err) {
Iif (err) { /* istanbul ignore next */ return cb(err); }
Eif (req.files) {
_.forEach(req.files, function(file, name) {
req.files[name] = (Array.isArray(file) && file.length === 1) ? file[0] : file;
});
}
debugContent('multer parsed req.body:', req.body);
cb();
});
},
function parseUrlencoded(cb) {
if (req.body || !shouldParseForm) { return cb(); }
Iif (skipParse(fittingDef.urlencodedOptions, req)) { return cb(); } // hack: see skipParse function
var urlEncodedBodyParser = bodyParser.urlencoded(fittingDef.urlencodedOptions);
urlEncodedBodyParser(req, res, cb);
},
function parseJson(cb) {
if (req.body) {
debugContent('urlencoded parsed req.body:', req.body);
return cb();
}
if (skipParse(fittingDef.jsonOptions, req)) { return cb(); } // hack: see skipParse function
bodyParser.json(fittingDef.jsonOptions)(req, res, cb);
},
function parseText(cb) {
if (req.body) {
debugContent('json parsed req.body:', req.body);
return cb();
}
Iif (skipParse(fittingDef.textOptions, req)) { return cb(); } // hack: see skipParse function
bodyParser.text(fittingDef.textOptions)(req, res, function(err) {
Eif (req.body) { debugContent('text parsed req.body:', req.body); }
cb(err);
});
}
], function finishedParseBody(err) {
return cb(err);
});
}
// hack: avoids body-parser issue: https://github.com/expressjs/body-parser/issues/128
var typeis = require('type-is').is;
function skipParse(options, req) {
return typeof options.type !== 'function' && !Boolean(typeis(req, options.type));
}
|