Add Chrome To Mobile Service and Views Page Action.

Implements the Chrome To Mobile extension in Chrome.

List the user's mobile devices via the Cloud Print server.
Add a page action icon when the service reports 1+ devices.
Add a bubble to send the current page URL / MHTML snapshot.

The bubble shows a radio group for multiple devices.
 (or it shows a single device as part of the title label)
The bubble also shows a checkbox to send an offline copy.
Send URLFetcher requests to GET/POST the URL/Snapshot.
The bubble shows "Sending..."/"Sent"/ error request status.

BUG=102709
TEST=New Chrome To Mobile bubble works as expected :)

Review URL: http://codereview.chromium.org/9443007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@126343 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 150 insertions, 0 deletions

diff --git a/chrome/common/cloud_print/cloud_print_helpers.cc b/chrome/common/cloud_print/cloud_print_helpers.cc
new file mode 100755
index 0000000..cebe4a3
--- /dev/null
+++ b/chrome/common/cloud_print/cloud_print_helpers.cc
@@ -0,0 +1,94 @@
+// 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/common/cloud_print/cloud_print_helpers.h"
+
+#include "base/json/json_reader.h"
+#include "base/logging.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/rand_util.h"
+#include "base/stringprintf.h"
+#include "base/values.h"
+#include "chrome/common/guid.h"
+#include "googleurl/src/gurl.h"
+
+namespace cloud_print {
+
+const char kPrinterListValue[] = "printers";
+const char kSuccessValue[] = "success";
+
+// Certain cloud print requests require Chrome's X-CloudPrint-Proxy header.
+const char kChromeCloudPrintProxyHeader[] = "X-CloudPrint-Proxy: Chrome";
+
+std::string AppendPathToUrl(const GURL& url, const std::string& path) {
+  DCHECK_NE(path[0], '/');
+  std::string ret = url.path();
+  if (url.has_path() && (ret[ret.length() - 1] != '/'))
+    ret += '/';
+  ret += path;
+  return ret;
+}
+
+GURL GetUrlForSearch(const GURL& cloud_print_server_url) {
+  std::string path(AppendPathToUrl(cloud_print_server_url, "search"));
+  GURL::Replacements replacements;
+  replacements.SetPathStr(path);
+  return cloud_print_server_url.ReplaceComponents(replacements);
+}
+
+GURL GetUrlForSubmit(const GURL& cloud_print_server_url) {
+  std::string path(AppendPathToUrl(cloud_print_server_url, "submit"));
+  GURL::Replacements replacements;
+  replacements.SetPathStr(path);
+  return cloud_print_server_url.ReplaceComponents(replacements);
+}
+
+bool ParseResponseJSON(const std::string& response_data,
+                       bool* succeeded,
+                       DictionaryValue** response_dict) {
+  scoped_ptr<Value> message_value(base::JSONReader::Read(response_data, false));
+  if (!message_value.get())
+    return false;
+
+  if (!message_value->IsType(Value::TYPE_DICTIONARY))
+    return false;
+
+  scoped_ptr<DictionaryValue> response_dict_local(
+      static_cast<DictionaryValue*>(message_value.release()));
+  if (succeeded &&
+      !response_dict_local->GetBoolean(cloud_print::kSuccessValue, succeeded))
+    *succeeded = false;
+  if (response_dict)
+    *response_dict = response_dict_local.release();
+  return true;
+}
+
+void AddMultipartValueForUpload(const std::string& value_name,
+                                const std::string& value,
+                                const std::string& mime_boundary,
+                                const std::string& content_type,
+                                std::string* post_data) {
+  DCHECK(post_data);
+  // First line is the boundary
+  post_data->append("--" + mime_boundary + "\r\n");
+  // Next line is the Content-disposition
+  post_data->append(StringPrintf("Content-Disposition: form-data; "
+                   "name=\"%s\"\r\n", value_name.c_str()));
+  if (!content_type.empty()) {
+    // If Content-type is specified, the next line is that
+    post_data->append(StringPrintf("Content-Type: %s\r\n",
+                      content_type.c_str()));
+  }
+  // Leave an empty line and append the value.
+  post_data->append(StringPrintf("\r\n%s\r\n", value.c_str()));
+}
+
+// Create a MIME boundary marker (27 '-' characters followed by 16 hex digits).
+void CreateMimeBoundaryForUpload(std::string* out) {
+  int r1 = base::RandInt(0, kint32max);
+  int r2 = base::RandInt(0, kint32max);
+  base::SStringPrintf(out, "---------------------------%08X%08X", r1, r2);
+}
+
+}  // namespace cloud_print
diff --git a/chrome/common/cloud_print/cloud_print_helpers.h b/chrome/common/cloud_print/cloud_print_helpers.h
new file mode 100755
index 0000000..1b4a15e
--- /dev/null
+++ b/chrome/common/cloud_print/cloud_print_helpers.h
@@ -0,0 +1,56 @@
+// 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.
+
+#ifndef CHROME_COMMON_CLOUD_PRINT_CLOUD_PRINT_HELPERS_H_
+#define CHROME_COMMON_CLOUD_PRINT_CLOUD_PRINT_HELPERS_H_
+
+#include <string>
+
+class GURL;
+
+namespace base {
+class DictionaryValue;
+}
+
+// Helper consts and methods for both cloud print and chrome browser.
+namespace cloud_print {
+
+// Values in the respone JSON from the cloud print server
+extern const char kPrinterListValue[];
+extern const char kSuccessValue[];
+
+extern const char kChromeCloudPrintProxyHeader[];
+
+// Appends a relative path to the url making sure to append a '/' if the
+// URL's path does not end with a slash. It is assumed that |path| does not
+// begin with a '/'.
+// NOTE: Since we ALWAYS want to append here, we simply append the path string
+// instead of calling url_utils::ResolveRelative. The input |url| may or may not
+// contain a '/' at the end.
+std::string AppendPathToUrl(const GURL& url, const std::string& path);
+
+GURL GetUrlForSearch(const GURL& cloud_print_server_url);
+GURL GetUrlForSubmit(const GURL& cloud_print_server_url);
+
+// Parses the response data for any cloud print server request. The method
+// returns false if there was an error in parsing the JSON. The succeeded
+// value returns the value of the "success" value in the response JSON.
+// Returns the response as a dictionary value.
+bool ParseResponseJSON(const std::string& response_data,
+                       bool* succeeded,
+                       base::DictionaryValue** response_dict);
+
+// Prepares one value as part of a multi-part upload request.
+void AddMultipartValueForUpload(const std::string& value_name,
+                                const std::string& value,
+                                const std::string& mime_boundary,
+                                const std::string& content_type,
+                                std::string* post_data);
+
+// Create a MIME boundary marker (27 '-' characters followed by 16 hex digits).
+void CreateMimeBoundaryForUpload(std::string *out);
+
+}  // namespace cloud_print
+
+#endif  // CHROME_COMMON_CLOUD_PRINT_CLOUD_PRINT_HELPERS_H_