HTTP server for testing Google Drive.

chrome/browser/chromeos/drive/test_servers/http_test_server.cc

+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/chromeos/drive/test_servers/http_test_server.h"
+
+#include "base/bind.h"
+#include "base/stl_util.h"
+#include "base/file_util.h"
+#include "base/stringprintf.h"
+#include "chrome/browser/chromeos/drive/test_servers/http_request.h"
+#include "chrome/browser/chromeos/drive/test_servers/http_response.h"
+#include "chrome/browser/google_apis/gdata_test_util.h"
+#include "content/public/browser/browser_thread.h"
+#include "net/tools/fetch/http_listen_socket.h"
+
+#include <sstream>
+
+namespace drive {
+namespace test_servers {
+
+using content::BrowserThread;
+
+namespace {
+
+const int kPort = 8040;
+const char kIp[] = "127.0.0.1";
+const int kRetries = 10;
+
+// Callback about success or failure in creating a server. |result| is a pointer
+// to result passed back to HttpTestServer::CreateForTesting. |server| is a
+// pointer to the created server or NULL in case of failure.
+static void OnCreatedForTesting(HttpTestServer** result,
+                                HttpTestServer* server) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  *result = server;
+  MessageLoop::current()->Quit();
+}
+
+// Callback to handle requests with default predefined response for requests
+// matching the address |url|.
+scoped_ptr<HttpResponse> HandleDefaultRequest(const GURL& url,
+                                              const HttpResponse& response,
+                                              const HttpRequest* request) {
+  if (url.path() != request->uri.path())
+    return scoped_ptr<HttpResponse>(NULL);
+  return scoped_ptr<HttpResponse>(new HttpResponse(response));
+}
+
+}  // namespace
+
+// static
+scoped_ptr<HttpTestServer> HttpTestServer::CreateForTesting() {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+
+  HttpTestServer* result = NULL;
+  BrowserThread::PostTask(
+      BrowserThread::IO,
+      FROM_HERE,
+      base::Bind(
+          &HttpTestServer::CreateOnIOThread,
+          base::Bind(&OnCreatedForTesting, &result)));
+
+  // Wait for the task completion.
+  MessageLoop::current()->Run();

[satorux1, 2012/11/12 06:34:15]

Can you do this instead?

content::RunAllPendingInMessageLoop(BriwserThread::IO);
MessageLoop::current()->RunAllPending();

Then you don't need to call Quit() in the callback.

[mtomasz, 2012/11/14 03:23:35]

Done.

+  return scoped_ptr<HttpTestServer>(result);
+}
+
+// static
+void HttpTestServer::CreateOnIOThread(const CreateCallback& callback) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+
+  int retries_left = kRetries + 1;
+  int try_port = kPort;
+  HttpTestServer* server = NULL;
+
+  while (retries_left) {

[satorux1, 2012/11/12 06:34:15]

retries_left > 0

[mtomasz, 2012/11/12 12:17:44]

Done.

+    SocketDescriptor socket_descriptor = net::TCPListenSocket::CreateAndBind(
+        kIp,
+        try_port);
+    if (socket_descriptor != net::TCPListenSocket::kInvalidSocket) {
+      server = new HttpTestServer(try_port, socket_descriptor);
+      break;
+    }
+    retries_left--;
+    try_port++;
+  }
+
+  BrowserThread::PostTask(BrowserThread::UI,
+                          FROM_HERE,
+                          base::Bind(callback, server));
+}
+
+HttpTestServer::HttpTestServer(int port,
+                               const SocketDescriptor& socket_descriptor)
+    : listen_socket_(new HttpListenSocket(
+        socket_descriptor,
+        ALLOW_THIS_IN_INITIALIZER_LIST(this))),
+      port_(port),
+      last_unique_id_(0),
+      weak_factory_(ALLOW_THIS_IN_INITIALIZER_LIST(this)) {

[satorux1, 2012/11/12 06:34:15]

DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));

[mtomasz, 2012/11/13 12:23:07]

Done.

+  listen_socket_->Listen();
+  base_url_ = GURL(base::StringPrintf("http://%s:%d", kIp, port_));
+}
+
+HttpTestServer::~HttpTestServer() {

[satorux1, 2012/11/12 06:34:15]

on what thread this has to be deleted? I guess it's IO:

DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));

[mtomasz, 2012/11/14 03:23:35]

UI. Done.

+  STLDeleteContainerPairSecondPointers(connections_.begin(),
+                                       connections_.end());
+}
+
+void HttpTestServer::HandleRequest(HttpConnection* connection,
+                                   scoped_ptr<HttpRequest> request) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+
+  std::vector<HandleRequestCallback>::iterator current_handler =
+      request_handlers_.begin();
+  while (current_handler != request_handlers_.end()) {

[satorux1, 2012/11/12 06:34:15]

Why not a for loop?

for (size_t i = 0; i < request_handlers_.size(); ++i) {

[mtomasz, 2012/11/12 12:17:44]

Done. Do we in general prefer simple loops over iterators?

+    scoped_ptr<HttpResponse> response = current_handler->Run(request.get());
+    if (response.get()) {
+      connection->SendResponse(response.Pass());
+      return;
+    }
+    current_handler++;
+  }
+
+  LOG(WARNING) << "Request not handled. Returning 404.";
+  scoped_ptr<HttpResponse> not_found_response(new HttpResponse());
+  not_found_response->code = NOT_FOUND;
+  connection->SendResponse(not_found_response.Pass());
+}
+
+GURL HttpTestServer::GetBaseURL() {
+  return base_url_;
+}
+
+void HttpTestServer::RegisterRequestHandler(
+    const HandleRequestCallback& callback) {
+  request_handlers_.push_back(callback);
+}
+
+GURL HttpTestServer::RegisterDefaultResponse(
+    const std::string& relative_path,
+    const HttpResponse& default_response) {
+  GURL request_url = base_url_.Resolve(relative_path);
+  const HandleRequestCallback callback =
+      base::Bind(&HandleDefaultRequest,
+                 request_url,
+                 default_response);
+  request_handlers_.push_back(callback);
+
+  return request_url;
+}
+
+GURL HttpTestServer::RegisterTextResponse(
+     const std::string& relative_path,
+     const std::string& content,
+     const std::string& content_type,
+     const ResponseCode response_code) {
+  HttpResponse default_response;
+  default_response.content = content;
+  default_response.content_type = content_type;
+  default_response.code = response_code;
+
+  return RegisterDefaultResponse(relative_path, default_response);
+}
+
+GURL HttpTestServer::RegisterTextResponse(

[satorux1, 2012/11/12 06:34:15]

Function overloading like this is not allowed per the style guide. Please give
it a different name.

[mtomasz, 2012/11/12 12:17:44]

Done.

+    const std::string& content,
+    const std::string& content_type) {
+  return RegisterTextResponse(GenerateUniqueIdentifier(),
+                              content,
+                              content_type,
+                              SUCCESS);
+}
+
+GURL HttpTestServer::RegisterFileResponse(
+     const std::string& relative_path,
+     const FilePath& file_path,
+     const std::string& content_type,
+     const ResponseCode response_code) {
+  HttpResponse default_response;
+
+  DCHECK(file_util::ReadFileToString(file_path, &default_response.content)) <<
+      "Failed to open the file: " << file_path.value();
+
+  default_response.content_type = content_type;
+  default_response.code = response_code;
+
+  return RegisterDefaultResponse(relative_path, default_response);
+}
+
+GURL HttpTestServer::RegisterFileResponse(

[satorux1, 2012/11/12 06:34:15]

ditto.

[mtomasz, 2012/11/12 12:17:44]

Done.

+     const FilePath& file_path,
+     const std::string& content_type) {
+  return RegisterFileResponse(
+      GenerateUniqueIdentifier() + "/" + file_path.BaseName().value(),
+      file_path,
+      content_type,
+      SUCCESS);
+}
+
+std::string HttpTestServer::GenerateUniqueIdentifier() {
+  std::stringstream result_builder;
+  result_builder << ++last_unique_id_;
+  return result_builder.str();
+}
+
+void HttpTestServer::DidAccept(net::StreamListenSocket* server,
+                               net::StreamListenSocket* connection) {
+  HttpConnection* http_connection = new HttpConnection(
+      connection,
+      base::Bind(&HttpTestServer::HandleRequest, weak_factory_.GetWeakPtr()));
+  connections_[connection] = http_connection;
+}
+
+void HttpTestServer::DidRead(net::StreamListenSocket* connection,
+                             const char* data,
+                             int length) {
+  HttpConnection* http_connection = FindConnection(connection);
+  if (http_connection == NULL) {
+    LOG(WARNING) << "Unknown connection.";
+    return;
+  }
+  http_connection->ReceiveData(data, length);
+}
+
+void HttpTestServer::DidClose(net::StreamListenSocket* connection) {
+  HttpConnection* http_connection = FindConnection(connection);
+  if (http_connection == NULL) {
+    LOG(WARNING) << "Unknown connection.";
+    return;
+  }
+  delete http_connection;
+  connections_.erase(connection);
+}
+
+HttpConnection* HttpTestServer::FindConnection(
+    net::StreamListenSocket* socket) {
+  std::map<net::StreamListenSocket*, HttpConnection*>::iterator it =
+      connections_.find(socket);
+  if (it == connections_.end()) {
+    return NULL;
+  }
+  return it->second;
+}
+
+}  // namespace test_servers
+}  // namespace drive