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// 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/appcache/view_appcache_internals_job.h"
#include "base/logging.h"
#include "base/format_macros.h"
#include "base/utf_string_conversions.h"
#include "base/i18n/time_formatting.h"
#include "base/string_util.h"
#include "webkit/appcache/appcache_service.h"
namespace {
const char kErrorMessage[] = "Error in retrieving Application caches.";
const char kEmptyAppCachesMessage[] = "No available Application caches.";
void StartHTML(std::string* out) {
DCHECK(out);
out->append(
"<!DOCTYPE HTML>"
"<html><head><title>AppCache Internals</title>"
"<style>"
"body { font-family: sans-serif; font-size: 0.8em; }\n"
"tt, code, pre { font-family: WebKitHack, monospace; }\n"
".subsection_body { margin: 10px 0 10px 2em; }\n"
".subsection_title { font-weight: bold; }\n"
"</style>");
}
void EndHTML(std::string* out) {
DCHECK(out);
out->append("</body></html>");
}
void AddLiTag(const std::string& element_title,
const std::string& element_data, std::string* out) {
DCHECK(out);
out->append("<li>");
out->append(element_title);
out->append(element_data);
out->append("</li>");
}
void WrapInHREF(const std::string& in, std::string* out) {
out->append("<a href='");
out->append(in);
out->append("'>");
out->append(in);
out->append("</a><br/>");
}
void AddHTMLFromAppCacheToOutput(
const appcache::AppCacheInfoVector& appcaches, std::string* out) {
for (std::vector<appcache::AppCacheInfo>::const_iterator info =
appcaches.begin();
info != appcaches.end(); ++info) {
out->append("<p>");
std::string anchored_manifest;
WrapInHREF(info->manifest_url.spec(), &anchored_manifest);
out->append("Manifest: ");
out->append(anchored_manifest);
out->append("<ul>");
AddLiTag("Size: ",
WideToUTF8(FormatBytes(
info->size, GetByteDisplayUnits(info->size), true)),
out);
AddLiTag("Creation Time: ",
WideToUTF8(TimeFormatFriendlyDateAndTime(
info->creation_time)),
out);
AddLiTag("Last Access Time: ",
WideToUTF8(
TimeFormatFriendlyDateAndTime(info->last_access_time)),
out);
AddLiTag("Last Update Time: ",
WideToUTF8(TimeFormatFriendlyDateAndTime(info->last_update_time)),
out);
out->append("</ul></p></br>");
}
}
struct ManifestURLComparator {
public:
bool operator() (
const appcache::AppCacheInfo& lhs,
const appcache::AppCacheInfo& rhs) const {
return (lhs.manifest_url.spec() < rhs.manifest_url.spec());
}
} manifest_url_comparator;
} // namespace
namespace appcache {
ViewAppCacheInternalsJob::ViewAppCacheInternalsJob(
URLRequest* request,
AppCacheService* service) : URLRequestSimpleJob(request),
appcache_service_(service) {
}
ViewAppCacheInternalsJob::~ViewAppCacheInternalsJob() {
// Cancel callback if job is destroyed before callback is called.
if (appcache_info_callback_)
appcache_info_callback_.release()->Cancel();
}
void ViewAppCacheInternalsJob::Start() {
if (!request_)
return;
info_collection_ = new AppCacheInfoCollection;
appcache_info_callback_ =
new net::CancelableCompletionCallback<ViewAppCacheInternalsJob>(
this, &ViewAppCacheInternalsJob::OnGotAppCacheInfo);
appcache_service_->GetAllAppCacheInfo(
info_collection_, appcache_info_callback_);
}
void ViewAppCacheInternalsJob::GenerateHTMLAppCacheInfo(
std::string* out) const {
typedef std::map<GURL, AppCacheInfoVector> InfoByOrigin;
AppCacheInfoVector appcaches;
for (InfoByOrigin::const_iterator origin =
info_collection_->infos_by_origin.begin();
origin != info_collection_->infos_by_origin.end(); ++origin) {
for (AppCacheInfoVector::const_iterator info =
origin->second.begin(); info != origin->second.end(); ++info)
appcaches.push_back(*info);
}
std::sort(appcaches.begin(), appcaches.end(), manifest_url_comparator);
AddHTMLFromAppCacheToOutput(appcaches, out);
}
void ViewAppCacheInternalsJob::OnGotAppCacheInfo(int rv) {
appcache_info_callback_ = NULL;
if (rv != net::OK)
info_collection_ = NULL;
StartAsync();
}
bool ViewAppCacheInternalsJob::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 (!info_collection_.get())
data->append(kErrorMessage);
else if (info_collection_->infos_by_origin.empty())
data->append(kEmptyAppCachesMessage);
else
GenerateHTMLAppCacheInfo(data);
EndHTML(data);
return true;
}
} // namespace appcache
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