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Unified Diff: net/url_request/view_cache_helper.cc

Issue 992733002: Remove //net (except for Android test stuff) and sdch (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 5 years, 9 months ago
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Index: net/url_request/view_cache_helper.cc
diff --git a/net/url_request/view_cache_helper.cc b/net/url_request/view_cache_helper.cc
deleted file mode 100644
index 594f7392d9535a22f17ad1d86cfb6094bfe5e659..0000000000000000000000000000000000000000
--- a/net/url_request/view_cache_helper.cc
+++ /dev/null
@@ -1,373 +0,0 @@
-// 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 "net/url_request/view_cache_helper.h"
-
-#include "base/bind.h"
-#include "base/bind_helpers.h"
-#include "base/profiler/scoped_tracker.h"
-#include "base/strings/stringprintf.h"
-#include "net/base/escape.h"
-#include "net/base/io_buffer.h"
-#include "net/base/net_errors.h"
-#include "net/disk_cache/disk_cache.h"
-#include "net/http/http_cache.h"
-#include "net/http/http_response_headers.h"
-#include "net/http/http_response_info.h"
-#include "net/url_request/url_request_context.h"
-
-#define VIEW_CACHE_HEAD \
- "<html><meta charset=\"utf-8\">" \
- "<meta http-equiv=\"Content-Security-Policy\" " \
- " content=\"object-src 'none'; script-src 'none' 'unsafe-eval'\">" \
- "<body><table>"
-
-#define VIEW_CACHE_TAIL \
- "</table></body></html>"
-
-namespace net {
-
-namespace {
-
-std::string FormatEntryInfo(disk_cache::Entry* entry,
- const std::string& url_prefix) {
- std::string key = entry->GetKey();
- GURL url = GURL(url_prefix + key);
- std::string row =
- "<tr><td><a href=\"" + url.spec() + "\">" + EscapeForHTML(key) +
- "</a></td></tr>";
- return row;
-}
-
-} // namespace.
-
-ViewCacheHelper::ViewCacheHelper()
- : context_(NULL),
- disk_cache_(NULL),
- entry_(NULL),
- buf_len_(0),
- index_(0),
- data_(NULL),
- next_state_(STATE_NONE),
- weak_factory_(this) {
-}
-
-ViewCacheHelper::~ViewCacheHelper() {
- if (entry_)
- entry_->Close();
-}
-
-int ViewCacheHelper::GetEntryInfoHTML(const std::string& key,
- const URLRequestContext* context,
- std::string* out,
- const CompletionCallback& callback) {
- return GetInfoHTML(key, context, std::string(), out, callback);
-}
-
-int ViewCacheHelper::GetContentsHTML(const URLRequestContext* context,
- const std::string& url_prefix,
- std::string* out,
- const CompletionCallback& callback) {
- return GetInfoHTML(std::string(), context, url_prefix, out, callback);
-}
-
-// static
-void ViewCacheHelper::HexDump(const char *buf, size_t buf_len,
- std::string* result) {
- const size_t kMaxRows = 16;
- int offset = 0;
-
- const unsigned char *p;
- while (buf_len) {
- base::StringAppendF(result, "%08x: ", offset);
- offset += kMaxRows;
-
- p = (const unsigned char *) buf;
-
- size_t i;
- size_t row_max = std::min(kMaxRows, buf_len);
-
- // print hex codes:
- for (i = 0; i < row_max; ++i)
- base::StringAppendF(result, "%02x ", *p++);
- for (i = row_max; i < kMaxRows; ++i)
- result->append(" ");
- result->append(" ");
-
- // print ASCII glyphs if possible:
- p = (const unsigned char *) buf;
- for (i = 0; i < row_max; ++i, ++p) {
- if (*p < 0x7F && *p > 0x1F) {
- AppendEscapedCharForHTML(*p, result);
- } else {
- result->push_back('.');
- }
- }
-
- result->push_back('\n');
-
- buf += row_max;
- buf_len -= row_max;
- }
-}
-
-//-----------------------------------------------------------------------------
-
-int ViewCacheHelper::GetInfoHTML(const std::string& key,
- const URLRequestContext* context,
- const std::string& url_prefix,
- std::string* out,
- const CompletionCallback& callback) {
- DCHECK(callback_.is_null());
- DCHECK(context);
- key_ = key;
- context_ = context;
- url_prefix_ = url_prefix;
- data_ = out;
- next_state_ = STATE_GET_BACKEND;
- int rv = DoLoop(OK);
-
- if (rv == ERR_IO_PENDING)
- callback_ = callback;
-
- return rv;
-}
-
-void ViewCacheHelper::DoCallback(int rv) {
- DCHECK_NE(ERR_IO_PENDING, rv);
- DCHECK(!callback_.is_null());
-
- callback_.Run(rv);
- callback_.Reset();
-}
-
-void ViewCacheHelper::HandleResult(int rv) {
- DCHECK_NE(ERR_IO_PENDING, rv);
- DCHECK_NE(ERR_FAILED, rv);
- context_ = NULL;
- if (!callback_.is_null())
- DoCallback(rv);
-}
-
-int ViewCacheHelper::DoLoop(int result) {
- DCHECK(next_state_ != STATE_NONE);
-
- int rv = result;
- do {
- State state = next_state_;
- next_state_ = STATE_NONE;
- switch (state) {
- case STATE_GET_BACKEND:
- DCHECK_EQ(OK, rv);
- rv = DoGetBackend();
- break;
- case STATE_GET_BACKEND_COMPLETE:
- rv = DoGetBackendComplete(rv);
- break;
- case STATE_OPEN_NEXT_ENTRY:
- DCHECK_EQ(OK, rv);
- rv = DoOpenNextEntry();
- break;
- case STATE_OPEN_NEXT_ENTRY_COMPLETE:
- rv = DoOpenNextEntryComplete(rv);
- break;
- case STATE_OPEN_ENTRY:
- DCHECK_EQ(OK, rv);
- rv = DoOpenEntry();
- break;
- case STATE_OPEN_ENTRY_COMPLETE:
- rv = DoOpenEntryComplete(rv);
- break;
- case STATE_READ_RESPONSE:
- DCHECK_EQ(OK, rv);
- rv = DoReadResponse();
- break;
- case STATE_READ_RESPONSE_COMPLETE:
- rv = DoReadResponseComplete(rv);
- break;
- case STATE_READ_DATA:
- DCHECK_EQ(OK, rv);
- rv = DoReadData();
- break;
- case STATE_READ_DATA_COMPLETE:
- rv = DoReadDataComplete(rv);
- break;
-
- default:
- NOTREACHED() << "bad state";
- rv = ERR_FAILED;
- break;
- }
- } while (rv != ERR_IO_PENDING && next_state_ != STATE_NONE);
-
- if (rv != ERR_IO_PENDING)
- HandleResult(rv);
-
- return rv;
-}
-
-int ViewCacheHelper::DoGetBackend() {
- next_state_ = STATE_GET_BACKEND_COMPLETE;
-
- if (!context_->http_transaction_factory())
- return ERR_FAILED;
-
- HttpCache* http_cache = context_->http_transaction_factory()->GetCache();
- if (!http_cache)
- return ERR_FAILED;
-
- return http_cache->GetBackend(
- &disk_cache_, base::Bind(&ViewCacheHelper::OnIOComplete,
- base::Unretained(this)));
-}
-
-int ViewCacheHelper::DoGetBackendComplete(int result) {
- if (result == ERR_FAILED) {
- data_->append("no disk cache");
- return OK;
- }
-
- DCHECK_EQ(OK, result);
- if (key_.empty()) {
- data_->assign(VIEW_CACHE_HEAD);
- DCHECK(!iter_);
- next_state_ = STATE_OPEN_NEXT_ENTRY;
- return OK;
- }
-
- next_state_ = STATE_OPEN_ENTRY;
- return OK;
-}
-
-int ViewCacheHelper::DoOpenNextEntry() {
- next_state_ = STATE_OPEN_NEXT_ENTRY_COMPLETE;
- if (!iter_)
- iter_ = disk_cache_->CreateIterator();
- return
- iter_->OpenNextEntry(&entry_, base::Bind(&ViewCacheHelper::OnIOComplete,
- base::Unretained(this)));
-}
-
-int ViewCacheHelper::DoOpenNextEntryComplete(int result) {
- if (result == ERR_FAILED) {
- data_->append(VIEW_CACHE_TAIL);
- return OK;
- }
-
- DCHECK_EQ(OK, result);
- data_->append(FormatEntryInfo(entry_, url_prefix_));
- entry_->Close();
- entry_ = NULL;
-
- next_state_ = STATE_OPEN_NEXT_ENTRY;
- return OK;
-}
-
-int ViewCacheHelper::DoOpenEntry() {
- next_state_ = STATE_OPEN_ENTRY_COMPLETE;
- return disk_cache_->OpenEntry(
- key_, &entry_,
- base::Bind(&ViewCacheHelper::OnIOComplete, base::Unretained(this)));
-}
-
-int ViewCacheHelper::DoOpenEntryComplete(int result) {
- if (result == ERR_FAILED) {
- data_->append("no matching cache entry for: " + EscapeForHTML(key_));
- return OK;
- }
-
- data_->assign(VIEW_CACHE_HEAD);
- data_->append(EscapeForHTML(entry_->GetKey()));
- next_state_ = STATE_READ_RESPONSE;
- return OK;
-}
-
-int ViewCacheHelper::DoReadResponse() {
- next_state_ = STATE_READ_RESPONSE_COMPLETE;
- buf_len_ = entry_->GetDataSize(0);
- if (!buf_len_)
- return buf_len_;
-
- buf_ = new IOBuffer(buf_len_);
- return entry_->ReadData(
- 0,
- 0,
- buf_.get(),
- buf_len_,
- base::Bind(&ViewCacheHelper::OnIOComplete, weak_factory_.GetWeakPtr()));
-}
-
-int ViewCacheHelper::DoReadResponseComplete(int result) {
- if (result && result == buf_len_) {
- HttpResponseInfo response;
- bool truncated;
- if (HttpCache::ParseResponseInfo(
- buf_->data(), buf_len_, &response, &truncated) &&
- response.headers.get()) {
- if (truncated)
- data_->append("<pre>RESPONSE_INFO_TRUNCATED</pre>");
-
- data_->append("<hr><pre>");
- data_->append(EscapeForHTML(response.headers->GetStatusLine()));
- data_->push_back('\n');
-
- void* iter = NULL;
- std::string name, value;
- while (response.headers->EnumerateHeaderLines(&iter, &name, &value)) {
- data_->append(EscapeForHTML(name));
- data_->append(": ");
- data_->append(EscapeForHTML(value));
- data_->push_back('\n');
- }
- data_->append("</pre>");
- }
- }
-
- index_ = 0;
- next_state_ = STATE_READ_DATA;
- return OK;
-}
-
-int ViewCacheHelper::DoReadData() {
- data_->append("<hr><pre>");
-
- next_state_ = STATE_READ_DATA_COMPLETE;
- buf_len_ = entry_->GetDataSize(index_);
- if (!buf_len_)
- return buf_len_;
-
- buf_ = new IOBuffer(buf_len_);
- return entry_->ReadData(
- index_,
- 0,
- buf_.get(),
- buf_len_,
- base::Bind(&ViewCacheHelper::OnIOComplete, weak_factory_.GetWeakPtr()));
-}
-
-int ViewCacheHelper::DoReadDataComplete(int result) {
- if (result && result == buf_len_) {
- HexDump(buf_->data(), buf_len_, data_);
- }
- data_->append("</pre>");
- index_++;
- if (index_ < HttpCache::kNumCacheEntryDataIndices) {
- next_state_ = STATE_READ_DATA;
- } else {
- data_->append(VIEW_CACHE_TAIL);
- entry_->Close();
- entry_ = NULL;
- }
- return OK;
-}
-
-void ViewCacheHelper::OnIOComplete(int result) {
- // TODO(vadimt): Remove ScopedTracker below once crbug.com/422516 is fixed.
- tracked_objects::ScopedTracker tracking_profile(
- FROM_HERE_WITH_EXPLICIT_FUNCTION("422516 ViewCacheHelper::OnIOComplete"));
-
- DoLoop(result);
-}
-
-} // namespace net.
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