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/**
* Copyright 2009 Google Inc.
*
* 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.
*/
import("stringutils.trim");
import("jsutils.scalaF0")
function _cx() { return appjet.context };
function _addIfNotPresent(obj, key, value) {
if (!(key in obj)) obj[key] = value;
}
var request = {
get isDefined() {
return (
_cx() != null &&
_cx().request() != null &&
(! _cx().request().isFake()) &&
_cx().request().req() != null
);
},
get cache() {
var req = _cx().request().req();
if (req.getAttribute("jsCache") == null) {
req.setAttribute("jsCache", {});
}
return req.getAttribute("jsCache");
},
get continuation() {
if (this.isDefined) {
var c = Packages.net.appjet.ajstdlib.execution.getContinuation(_cx());
var u = this.underlying;
return {
suspend: function(timeout) {
return Packages.net.appjet.ajstdlib.execution.sync(
u, scalaF0(function() { return c.suspend(timeout); }));
},
resume: function() {
Packages.net.appjet.ajstdlib.execution.sync(
u, scalaF0(function() { c.resume(); }))
}
}
}
},
get underlying() {
if (this.isDefined) {
return _cx().request().req();
}
},
/**
* The request path following the hostname. For example, if the user
* is visiting yourapp.appjet.net/foo, then this will be set to
* "/foo".
*
* This does not include CGI parameters or the domain name, and always
* begins with a "/".
*
* @type string
*/
get path() {
if (this.isDefined) {
return String(_cx().request().path());
}
},
/**
* The value request query string.
*
* For example, if the user visits "yourapp.appjet.net/foo?id=20", then
* query will be "id=20".
*
* @type string
*/
get query() {
if (this.isDefined) {
if (_cx().request().query() != null) {
return _cx().request().query();
}
}
},
/**
* The content of a POST request. Retrieving this value may interfere
* with the ability to get post request parameters sent in the body of
* a request via the "params" property. Use with care.
*
* @type string
*/
get content() {
if (this.isDefined) {
if (_cx().request().content() != null) {
return _cx().request().content();
}
}
},
/**
* Either "GET" or "POST" (uppercase).
* @type string
*/
get method() {
if (this.isDefined) {
return String(_cx().request().method().toUpperCase());
}
},
/**
* Whether the curent HTTP request is a GET request.
* @type boolean
*/
get isGet() {
return (this.method == "GET");
},
/**
* Whether the current HTTP request is a POST request.
* @type boolean
*/
get isPost() {
return (this.method == "POST");
},
/**
* Either "http" or "https" (lowercase).
* @type string
*/
get scheme() {
if (this.isDefined) {
return String(_cx().request().scheme());
}
},
/**
* Whether the current request arrived using HTTPS.
* @type boolean
*/
get isSSL() {
return (this.scheme == "https");
},
/**
* Holds the IP address of the user making the request.
* @type string
*/
get clientAddr() {
if (this.isDefined) {
return String(_cx().request().clientAddr());
}
},
/**
* Parameters associated with the request, either from the query string
* or from the contents of a POST, e.g. from a form. Parameters are accessible
* by name as properties of this object. The property value is either a
* string (typically) or an array of strings (if the parameter occurs
* multiple times in the request).
*
* @type object
*/
get params() {
if (this.isDefined) {
var cx = _cx();
var req = cx.request();
return cx.attributes().getOrElseUpdate("requestParams",
scalaF0(function() { return req.params(cx.runner().globalScope()); }));
}
},
/**
* Uploaded files associated with the request, from the contents of a POST.
*
* @type object
*/
get files() {
if (this.isDefined) {
var cx = _cx();
var req = cx.request();
return cx.attributes().getOrElseUpdate("requestFiles",
scalaF0(function() { return req.files(cx.runner().globalScope()); }));
}
},
/**
* Used to access the HTTP headers of the current request. Properties are
* header names, and each value is either a string (typically) or an
* array of strings (if the header occurs multiple times in the request).
*
* @example
print(request.headers["User-Agent"]);
*
* @type object
*/
get headers() {
if (this.isDefined) {
var cx = _cx();
var req = cx.request();
return cx.attributes().getOrElseUpdate("requestHeaders",
scalaF0(function() { return req.headers(cx.runner().globalScope()); }));
}
},
// TODO: this is super inefficient to do each time someone accesses
// request.cookies.foo. We should probably store _cookies in the requestCache.
get cookies() {
var _cookies = {};
var cookieHeaderArray = this.headers['Cookie'];
if (!cookieHeaderArray) { return {}; }
if (!(cookieHeaderArray instanceof Array))
cookieHeaderArray = [cookieHeaderArray];
var name, val;
cookieHeaderArray.forEach(function (cookieHeader) {
cookieHeader.split(';').forEach(function(cs) {
var parts = cs.split('=');
if (parts.length == 2) {
name = trim(parts[0]);
val = trim(unescape(parts[1]));
_addIfNotPresent(_cookies, name, val);
}
});
});
return _cookies;
},
/**
* Holds the full URL of the request.
*/
get url() {
if (this.isDefined) {
return this.scheme+"://"+this.host+this.path+(this.query ? "?"+this.query : "");
}
},
get host() {
if (this.isDefined) {
// required by HTTP/1.1 to be present.
return String(this.headers['Host']).toLowerCase();
}
},
get domain() {
if (this.isDefined) {
// like host, but without the port if there is one.
return this.host.split(':')[0];
}
},
get uniqueId() {
return String(_cx().executionId());
},
get protocol() {
if (this.isDefined) {
return String(_cx().request().protocol());
}
},
get userAgent() {
if (this.isDefined) {
var agentString = (request.headers['User-Agent'] || "?");
return {
toString: function() { return agentString; },
isIPhone: function() { return (agentString.indexOf("(iPhone;") > 0); }
};
}
},
get acceptsGzip() {
if (this.isDefined) {
var headerArray = this.headers["Accept-Encoding"];
if (! (headerArray instanceof Array)) {
headerArray = [headerArray];
}
// Want to see if some accept-encoding header OK's gzip.
// Starting with: "Accept-Encoding: gzip; q=0.5, deflate; q=1.0"
// 1. Split into ["gzip; q=0.5", "delfate; q=1.0"]
// 2. See if some entry is gzip with q > 0. (q is optional.)
return headerArray.some(function(header) {
if (! header) return false;
return header.split(/,\s*/).some(function(validEncoding) {
if (!validEncoding.indexOf("gzip") == 0) {
return false;
}
if (/q=[0\.]*$/.test(validEncoding)) {
return false;
}
return true;
});
});
}
}
}; // end: var request = {...
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