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Unbreak CORS preflighting

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This commit is contained in:
Simon Kornblith 2011-09-01 07:46:42 +00:00
parent 24a736b316
commit d53cb8a77d
1 changed files with 40 additions and 40 deletions
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80
chrome/content/zotero/xpcom/server.js
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@ -25,7 +25,7 @@
Zotero.Server = new function() {
var _onlineObserverRegistered;
var responseCodes = {
this.responseCodes = {
200:"OK",
201:"Created",
300:"Multiple Choices",
@ -62,29 +62,6 @@ Zotero.Server = new function() {
_registerOnlineObserver()
}
/**
* generates the response to an HTTP request
*/
this.generateResponse = function (status, contentType, body, headers) {
var response = "HTTP/1.0 "+status+" "+responseCodes[status]+"\r\n";
if(!Zotero.isServer) {
response += "X-Zotero-Version: "+Zotero.version+"\r\n";
response += "X-Zotero-Connector-API-Version: "+CONNECTOR_API_VERSION+"\r\n";
if(headers) response += headers;
}
if(body) {
if(contentType) {
response += "Content-Type: "+contentType+"\r\n";
}
response += "\r\n"+body;
} else {
response += "Content-Length: 0\r\n\r\n";
}
return response;
}
/**
* Parses a query string into a key => value object
* @param {String} queryString Query string
@ -250,11 +227,11 @@ Zotero.Server.DataListener.prototype._headerFinished = function() {
}
if(!method) {
this._requestFinished(Zotero.Server.generateResponse(400, "text/plain", "Invalid method specified\n"));
this._requestFinished(this._generateResponse(400, "text/plain", "Invalid method specified\n"));
return;
}
if(!Zotero.Server.Endpoints[method[2]]) {
this._requestFinished(Zotero.Server.generateResponse(404, "text/plain", "No endpoint found\n"));
this._requestFinished(this._generateResponse(404, "text/plain", "No endpoint found\n"));
return;
}
this.pathname = method[2];
@ -262,7 +239,7 @@ Zotero.Server.DataListener.prototype._headerFinished = function() {
this.query = method[3];
if(method[1] == "HEAD" || method[1] == "OPTIONS") {
this._requestFinished(Zotero.Server.generateResponse(200));
this._requestFinished(this._generateResponse(200));
} else if(method[1] == "GET") {
this._processEndpoint("GET", null);
} else if(method[1] == "POST") {
@ -271,14 +248,14 @@ Zotero.Server.DataListener.prototype._headerFinished = function() {
// parse content length
var m = contentLengthRe.exec(this.header);
if(!m) {
this._requestFinished(Zotero.Server.generateResponse(400, "text/plain", "Content-length not provided\n"));
this._requestFinished(this._generateResponse(400, "text/plain", "Content-length not provided\n"));
return;
}
this.bodyLength = parseInt(m[1]);
this._bodyData();
} else {
this._requestFinished(Zotero.Server.generateResponse(501, "text/plain", "Method not implemented\n"));
this._requestFinished(this._generateResponse(501, "text/plain", "Method not implemented\n"));
return;
}
}
@ -307,26 +284,49 @@ Zotero.Server.DataListener.prototype._bodyData = function() {
this._processEndpoint("POST", this.body);
}
}
/**
* Generates a response based on calling the function associated with the endpoint
* Generates the response to an HTTP request
*/
Zotero.Server.DataListener.prototype._processEndpoint = function(method, postData) {
try {
var headers = "";
Zotero.Server.DataListener.prototype._generateResponse = function(status, contentType, body) {
var response = "HTTP/1.0 "+status+" "+Zotero.Server.responseCodes[status]+"\r\n";
if(!Zotero.isServer) {
response += "X-Zotero-Version: "+Zotero.version+"\r\n";
response += "X-Zotero-Connector-API-Version: "+CONNECTOR_API_VERSION+"\r\n";
const originRe = /[\r\n]Origin: +([^ \r\n]+)/i;
Zotero.debug(this.header);
var m = originRe.exec(this.header);
if(m && (m[1] === "https://www.zotero.org" || m[1] === "http://www.zotero.org")) {
headers += "Access-Control-Allow-Origin: "+m[1]+"\r\n";
headers += "Access-Control-Allow-Methods: POST, GET, OPTIONS\r\n";
headers += "Access-Control-Allow-Headers: Content-Type,X-Zotero-Connector-API-Version,X-Zotero-Version\r\n";
}
}
if(body) {
if(contentType) {
response += "Content-Type: "+contentType+"\r\n";
}
response += "\r\n"+body;
} else {
response += "Content-Length: 0\r\n\r\n";
}
Zotero.debug(response);
return response;
}
/**
* Generates a response based on calling the function associated with the endpoint
*/
Zotero.Server.DataListener.prototype._processEndpoint = function(method, postData) {
try {
var endpoint = new this.endpoint;
// check that endpoint supports method
if(endpoint.supportedMethods && endpoint.supportedMethods.indexOf(method) === -1) {
this._requestFinished(Zotero.Server.generateResponse(400, "text/plain", "Endpoint does not support method\n", headers));
this._requestFinished(this._generateResponse(400, "text/plain", "Endpoint does not support method\n"));
return;
}
@ -335,7 +335,7 @@ Zotero.Server.DataListener.prototype._processEndpoint = function(method, postDat
// check that endpoint supports contentType
var supportedDataTypes = endpoint.supportedDataTypes;
if(supportedDataTypes && supportedDataTypes.indexOf(this.contentType) === -1) {
this._requestFinished(Zotero.Server.generateResponse(400, "text/plain", "Endpoint does not support content-type\n", headers));
this._requestFinished(this._generateResponse(400, "text/plain", "Endpoint does not support content-type\n"));
return;
}
@ -344,7 +344,7 @@ Zotero.Server.DataListener.prototype._processEndpoint = function(method, postDat
try {
decodedData = JSON.parse(postData);
} catch(e) {
this._requestFinished(Zotero.Server.generateResponse(400, "text/plain", "Invalid JSON provided\n", headers));
this._requestFinished(this._generateResponse(400, "text/plain", "Invalid JSON provided\n"));
return;
}
} else if(supportedDataTypes && this.contentType === "application/x-www-urlencoded") {
@ -357,7 +357,7 @@ Zotero.Server.DataListener.prototype._processEndpoint = function(method, postDat
// set up response callback
var me = this;
var sendResponseCallback = function(code, contentType, arg) {
me._requestFinished(Zotero.Server.generateResponse(code, contentType, arg, headers));
me._requestFinished(me._generateResponse(code, contentType, arg));
}
// pass to endpoint
@ -373,7 +373,7 @@ Zotero.Server.DataListener.prototype._processEndpoint = function(method, postDat
}
} catch(e) {
Zotero.debug(e);
this._requestFinished(Zotero.Server.generateResponse(500), "text/plain", "An error occurred\n", headers);
this._requestFinished(this._generateResponse(500), "text/plain", "An error occurred\n");
throw e;
}
}