// Copyright (c) 2010 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 "webkit/blob/view_blob_internals_job.h" #include "base/compiler_specific.h" #include "base/logging.h" #include "base/format_macros.h" #include "base/i18n/number_formatting.h" #include "base/i18n/time_formatting.h" #include "base/message_loop.h" #include "base/stringprintf.h" #include "base/string_util.h" #include "base/utf_string_conversions.h" #include "net/base/escape.h" #include "net/url_request/url_request.h" #include "webkit/blob/blob_data.h" #include "webkit/blob/blob_storage_controller.h" namespace { const char kEmptyBlobStorageMessage[] = "No available blob data."; const char kRemove[] = "Remove"; const char kContentType[] = "Content Type: "; const char kContentDisposition[] = "Content Disposition: "; const char kCount[] = "Count: "; const char kIndex[] = "Index: "; const char kType[] = "Type: "; const char kPath[] = "Path: "; const char kURL[] = "URL: "; const char kModificationTime[] = "Modification Time: "; const char kOffset[] = "Offset: "; const char kLength[] = "Length: "; void StartHTML(std::string* out) { out->append( "" "Blob Storage Internals" "" "\n" "" "
" "" "
"); } void EndHTML(std::string* out) { out->append(""); } void AddHTMLBoldText(const std::string& text, std::string* out) { out->append(""); out->append(EscapeForHTML(text)); out->append(""); } void StartHTMLList(std::string* out) { out->append(""); } void AddHTMLListItem(const std::string& element_title, const std::string& element_data, std::string* out) { out->append("
  • "); // No need to escape element_title since constant string is passed. out->append(element_title); out->append(EscapeForHTML(element_data)); out->append("
    • "); } void AddHTMLButton(const std::string& title, const std::string& command, std::string* out) { // No need to escape title since constant string is passed. std::string escaped_command = EscapeForHTML(command.c_str()); base::StringAppendF(out, "", title.c_str(), escaped_command.c_str()); } } // namespace namespace webkit_blob { ViewBlobInternalsJob::ViewBlobInternalsJob( net::URLRequest* request, BlobStorageController* blob_storage_controller) : net::URLRequestSimpleJob(request), blob_storage_controller_(blob_storage_controller), ALLOW_THIS_IN_INITIALIZER_LIST(method_factory_(this)) { } ViewBlobInternalsJob::~ViewBlobInternalsJob() { } void ViewBlobInternalsJob::Start() { MessageLoop::current()->PostTask( FROM_HERE, method_factory_.NewRunnableMethod(&ViewBlobInternalsJob::DoWorkAsync)); } bool ViewBlobInternalsJob::IsRedirectResponse(GURL* location, int* http_status_code) { if (request_->url().has_query()) { // Strip the query parameters. GURL::Replacements replacements; replacements.ClearQuery(); *location = request_->url().ReplaceComponents(replacements); *http_status_code = 307; return true; } return false; } void ViewBlobInternalsJob::Kill() { net::URLRequestSimpleJob::Kill(); method_factory_.RevokeAll(); } void ViewBlobInternalsJob::DoWorkAsync() { if (request_->url().has_query() && StartsWithASCII(request_->url().query(), "remove=", true)) { std::string blob_url = request_->url().query().substr(strlen("remove=")); blob_url = UnescapeURLComponent(blob_url, UnescapeRule::NORMAL | UnescapeRule::URL_SPECIAL_CHARS); blob_storage_controller_->UnregisterBlobUrl(GURL(blob_url)); } StartAsync(); } bool ViewBlobInternalsJob::GetData(std::string* mime_type, std::string* charset, std::string* data) const { mime_type->assign("text/html"); charset->assign("UTF-8"); data->clear(); StartHTML(data); if (blob_storage_controller_->blob_map_.empty()) data->append(kEmptyBlobStorageMessage); else GenerateHTML(data); EndHTML(data); return true; } void ViewBlobInternalsJob::GenerateHTML(std::string* out) const { for (BlobStorageController::BlobMap::const_iterator iter = blob_storage_controller_->blob_map_.begin(); iter != blob_storage_controller_->blob_map_.end(); ++iter) { AddHTMLBoldText(iter->first, out); AddHTMLButton(kRemove, iter->first, out); out->append("
    "); GenerateHTMLForBlobData(*iter->second, out); } } void ViewBlobInternalsJob::GenerateHTMLForBlobData(const BlobData& blob_data, std::string* out) { StartHTMLList(out); if (!blob_data.content_type().empty()) AddHTMLListItem(kContentType, blob_data.content_type(), out); if (!blob_data.content_disposition().empty()) AddHTMLListItem(kContentDisposition, blob_data.content_disposition(), out); bool has_multi_items = blob_data.items().size() > 1; if (has_multi_items) { AddHTMLListItem(kCount, UTF16ToUTF8(base::FormatNumber(blob_data.items().size())), out); } for (size_t i = 0; i < blob_data.items().size(); ++i) { if (has_multi_items) { AddHTMLListItem(kIndex, UTF16ToUTF8(base::FormatNumber(i)), out); StartHTMLList(out); } const BlobData::Item& item = blob_data.items().at(i); switch (item.type()) { case BlobData::TYPE_DATA: AddHTMLListItem(kType, "data", out); break; case BlobData::TYPE_FILE: AddHTMLListItem(kType, "file", out); AddHTMLListItem(kPath, #if defined(OS_WIN) EscapeForHTML(WideToUTF8(item.file_path().value())), #else EscapeForHTML(item.file_path().value()), #endif out); if (!item.expected_modification_time().is_null()) { AddHTMLListItem(kModificationTime, UTF16ToUTF8( TimeFormatFriendlyDateAndTime(item.expected_modification_time())), out); } break; case BlobData::TYPE_BLOB: AddHTMLListItem(kType, "blob", out); AddHTMLListItem(kURL, item.blob_url().spec(), out); break; } if (item.offset()) { AddHTMLListItem(kOffset, UTF16ToUTF8(base::FormatNumber( static_cast(item.offset()))), out); } if (static_cast(item.length()) != -1) { AddHTMLListItem(kLength, UTF16ToUTF8(base::FormatNumber( static_cast(item.length()))), out); } if (has_multi_items) EndHTMLList(out); } EndHTMLList(out); } } // namespace webkit_blob