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Bungloo/hmac-helper.js
Jeena Paradies 45be91f33f fixed #1 #2
2012-11-02 02:15:17 +01:00

122 lines
No EOL
4.2 KiB
JavaScript

// its different for app authentication and user authentication:
// for apps its id: mac_key_id and secret: mac_key,
// for users its id: access_token and secret:mac_key
function getURL(url, http_method, callback, data, auth_header) {
$.ajax({
beforeSend: function(xhr) {
if (data) xhr.setRequestHeader("Content-Length", data.length);
if (auth_header) { // if is_set? auth_header
xhr.setRequestHeader("Authorization", auth_header);
} else {
var user_access_token = controller.stringForKey_("user_access_token");
if (auth_header !== false && user_access_token) {
auth_header = makeAuthHeader(
url,
http_method,
controller.stringForKey_("user_mac_key"),
user_access_token
)
xhr.setRequestHeader("Authorization", auth_header);
}
}
},
url: url,
accepts: "application/vnd.tent.v0+json",
contentType: "application/vnd.tent.v0+json",
type: http_method,
complete: callback,
data: data,
processData: false,
error: function(xhr, ajaxOptions, thrownError) {
alert("getURL " + xhr.statusText + " " + http_method + " (" + url + "): '" + xhr.responseText + "'");
}
});
}
function makeAuthHeader(url, http_method, mac_key, mac_key_id) {
url = URI(url);
var nonce = makeid(8);
var time_stamp = parseInt((new Date).getTime() / 1000, 10);
var port = url.port();
if (!port) {
port = url.protocol() == "https" ? "443" : "80";
}
var normalizedRequestString = ""
+ time_stamp + '\n'
+ nonce + '\n'
+ http_method + '\n'
+ url.path() + url.search() + url.hash() + '\n'
+ url.hostname() + '\n'
+ port + '\n'
+ '\n' ;
var hmac = CryptoJS.algo.HMAC.create(CryptoJS.algo.SHA256, mac_key);
hmac.update(normalizedRequestString);
var hash = hmac.finalize();
var mac = hash.toString(CryptoJS.enc.Base64);
return 'MAC id="' + mac_key_id +
'", ts="' + time_stamp +
'", nonce="' + nonce +
'", mac="' + mac + '"';
}
function makeid(len) {
var text = "";
var possible = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
for( var i=0; i < len; i++ )
text += possible.charAt(Math.floor(Math.random() * possible.length));
return text;
}
function findProfileURL(entity, callback) {
$.ajax({
url: entity,
type: "HEAD",
complete: function(resp) {
if(resp) {
var headers = resp.getAllResponseHeaders();
var regex = /Link: <([^>]*)>; rel="https:\/\/tent.io\/rels\/profile"/; // FIXME: parse it!
var ret = headers.match(regex);
var profile_url = null;
if(ret && ret.length > 1) {
var profile_url = ret[1];
if (profile_url == "/profile") {
profile_url = entity + "/profile";
}
}
if (profile_url) {
callback(profile_url);
}
}
},
error: function(xhr, ajaxOptions, thrownError) {
alert("findProfileURL " + xhr.statusText + " (" + entity + "): " + xhr.responseText);
}
});
}
function mkApiRootPath(path) {
var api_root = controller.stringForKey_("api_root");
if((api_root.substring(api_root.length - 1, api_root.length) != "/") && (path.substring(0, 1) != "/")) {
api_root += "/";
} else if((api_root.substring(api_root.length - 1, api_root.length) == "/") && (path.substring(0, 1) == "/")) {
api_root = api_root.substring(0, api_root.length -1);
}
return api_root + path;
}
function debug(string) {
if (typeof string == "Object") {
string = JSON.stirngify(string);
}
alert("DEBUG: " + string);
}