Moving oauth code from host to base to allow code sharing between host and client.

remoting/host/setup/oauth_helper.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 "remoting/host/setup/oauth_helper.h"
-
-#include "base/strings/stringprintf.h"
-#include "google_apis/google_api_keys.h"
-#include "net/base/escape.h"
-#include "url/third_party/mozilla/url_parse.h"
-
-namespace {
-
-std::string GetComponent(const std::string& url,
-                         const url::Component component) {
-  if (component.len < 0) {
-    return std::string();
-  }
-  return url.substr(component.begin, component.len);
-}
-
-}  // namespace
-
-namespace remoting {
-
-std::string GetOauthScope() {
-  return
-      "https://www.googleapis.com/auth/chromoting "
-      "https://www.googleapis.com/auth/googletalk "
-      "https://www.googleapis.com/auth/userinfo.email ";
-}
-
-std::string GetDefaultOauthRedirectUrl() {
-  return
-      "https://chromoting-oauth.talkgadget.google.com/talkgadget/oauth/"
-      "chrome-remote-desktop/rel/kgngmbheleoaphbjbaiobfdepmghbfah";
-}
-
-std::string GetOauthStartUrl(const std::string& redirect_url) {
-  return base::StringPrintf(
-      "https://accounts.google.com/o/oauth2/auth"
-      "?scope=%s"
-      "&redirect_uri=%s"
-      "&response_type=code"
-      "&client_id=%s"
-      "&access_type=offline"
-      "&approval_prompt=force",
-      net::EscapeUrlEncodedData(GetOauthScope(), true).c_str(),
-      redirect_url.c_str(),
-      net::EscapeUrlEncodedData(google_apis::GetOAuth2ClientID(
-          google_apis::CLIENT_REMOTING), true).c_str());
-}
-
-std::string GetOauthCodeInUrl(const std::string& url,
-                              const std::string& redirect_url) {
-  url::Parsed url_parsed;
-  ParseStandardURL(url.c_str(), url.length(), &url_parsed);
-  url::Parsed redirect_url_parsed;
-  ParseStandardURL(redirect_url.c_str(), redirect_url.length(),
-                   &redirect_url_parsed);
-  if (GetComponent(url, url_parsed.scheme) !=
-      GetComponent(redirect_url, redirect_url_parsed.scheme)) {
-    return std::string();
-  }
-  if (GetComponent(url, url_parsed.host) !=
-      GetComponent(redirect_url, redirect_url_parsed.host)) {
-    return std::string();
-  }
-  url::Component query = url_parsed.query;
-  url::Component key;
-  url::Component value;
-  while (ExtractQueryKeyValue(url.c_str(), &query, &key, &value)) {
-    if (GetComponent(url, key) == "code") {
-      return GetComponent(url, value);
-    }
-  }
-  return std::string();
-}
-
-}  // namespace remoting