extension_protocols.cc | Explore in Territory

// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/351564777): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif

#include "extensions/browser/extension_protocols.h"

#include <stddef.h>
#include <stdint.h>

#include <algorithm>
#include <memory>
#include <string>
#include <string_view>
#include <utility>
#include <vector>

#include "base/base64.h"
#include "base/compiler_specific.h"
#include "base/feature_list.h"
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/format_macros.h"
#include "base/functional/bind.h"
#include "base/hash/sha1.h"
#include "base/logging.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/metrics/field_trial.h"
#include "base/metrics/histogram.h"
#include "base/metrics/histogram_functions.h"
#include "base/metrics/user_metrics.h"
#include "base/no_destructor.h"
#include "base/numerics/safe_conversions.h"
#include "base/strings/strcat.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_util.h"
#include "base/strings/stringprintf.h"
#include "base/strings/utf_string_conversions.h"
#include "base/task/cancelable_task_tracker.h"
#include "base/task/thread_pool.h"
#include "base/threading/thread_restrictions.h"
#include "base/timer/elapsed_timer.h"
#include "base/types/optional_util.h"
#include "build/build_config.h"
#include "components/keyed_service/content/browser_context_keyed_service_shutdown_notifier_factory.h"
#include "components/keyed_service/core/keyed_service_shutdown_notifier.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/child_process_host.h"
#include "content/public/browser/file_url_loader.h"
#include "content/public/browser/navigation_ui_data.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/browser/render_process_host.h"
#include "crypto/secure_hash.h"
#include "crypto/sha2.h"
#include "extensions/browser/content_verifier/content_verifier.h"
#include "extensions/browser/content_verifier/content_verify_job.h"
#include "extensions/browser/extension_navigation_ui_data.h"
#include "extensions/browser/extension_registry.h"
#include "extensions/browser/extension_registry_factory.h"
#include "extensions/browser/extension_system.h"
#include "extensions/browser/extension_util.h"
#include "extensions/browser/extensions_browser_client.h"
#include "extensions/browser/process_map.h"
#include "extensions/browser/process_map_factory.h"
#include "extensions/browser/url_request_util.h"
#include "extensions/common/extension.h"
#include "extensions/common/extension_features.h"
#include "extensions/common/extension_id.h"
#include "extensions/common/extension_resource.h"
#include "extensions/common/file_util.h"
#include "extensions/common/manifest_handlers/background_info.h"
#include "extensions/common/manifest_handlers/cross_origin_isolation_info.h"
#include "extensions/common/manifest_handlers/csp_info.h"
#include "extensions/common/manifest_handlers/icons_handler.h"
#include "extensions/common/manifest_handlers/incognito_info.h"
#include "extensions/common/manifest_handlers/shared_module_info.h"
#include "extensions/common/manifest_handlers/trial_tokens_handler.h"
#include "extensions/common/manifest_handlers/web_accessible_resources_info.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/receiver_set.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "mojo/public/cpp/bindings/self_owned_receiver.h"
#include "net/base/filename_util.h"
#include "net/base/io_buffer.h"
#include "net/base/mime_util.h"
#include "net/base/net_errors.h"
#include "net/http/http_request_headers.h"
#include "net/http/http_response_headers.h"
#include "net/http/http_response_info.h"
#include "net/http/http_status_code.h"
#include "pdf/buildflags.h"
#include "services/network/public/cpp/record_ontransfersizeupdate_utils.h"
#include "services/network/public/cpp/resource_request.h"
#include "services/network/public/cpp/self_deleting_url_loader_factory.h"
#include "services/network/public/cpp/url_loader_completion_status.h"
#include "services/network/public/mojom/early_hints.mojom.h"
#include "services/network/public/mojom/fetch_api.mojom.h"
#include "services/network/public/mojom/url_response_head.mojom.h"
#include "third_party/blink/public/common/features.h"
#include "third_party/blink/public/common/loader/resource_type_util.h"
#include "url/origin.h"
#include "url/url_util.h"

#if BUILDFLAG(ENABLE_GUEST_VIEW)
#include "extensions/browser/guest_view/web_view/web_view_guest.h"
#endif

#if BUILDFLAG(ENABLE_PDF)
#include "pdf/pdf_features.h"
#endif  // BUILDFLAG(ENABLE_PDF)

BrowserContext;
Extension;
SharedModuleInfo;

namespace extensions {
namespace {

ExtensionProtocolTestHandler* g_test_handler = …;

void GenerateBackgroundPageContents(const Extension* extension,
                                    std::string* mime_type,
                                    std::string* charset,
                                    std::string* data) { … }

base::Time GetFileLastModifiedTime(const base::FilePath& filename) { … }

std::pair<base::FilePath, base::Time> ReadResourceFilePathAndLastModifiedTime(
    const extensions::ExtensionResource& resource,
    const base::FilePath& directory) { … }

bool ExtensionCanLoadInIncognito(bool is_main_frame,
                                 const Extension* extension,
                                 bool extension_enabled_in_incognito) { … }

// Returns true if an chrome-extension:// resource should be allowed to load.
// Pass true for |is_incognito| only for incognito profiles and not Chrome OS
// guest mode profiles.
//
// Called on the UI thread.
bool AllowExtensionResourceLoad(const network::ResourceRequest& request,
                                network::mojom::RequestDestination destination,
                                ui::PageTransition page_transition,
                                int child_id,
                                bool is_incognito,
                                const Extension* extension,
                                bool extension_enabled_in_incognito,
                                const ExtensionSet& extensions,
                                const ProcessMap& process_map,
                                const GURL& upstream_url) { … }

// Returns true if the given URL references an icon in the given extension.
bool URLIsForExtensionIcon(const GURL& url, const Extension* extension) { … }

// Retrieves the path corresponding to an extension on disk. Returns |true| on
// success and populates |*path|; otherwise returns |false|.
bool GetDirectoryForExtensionURL(const GURL& url,
                                 const ExtensionId& extension_id,
                                 const Extension* extension,
                                 const ExtensionSet& disabled_extensions,
                                 base::FilePath* out_path) { … }

void GetSecurityPolicyForURL(const network::ResourceRequest& request,
                             const Extension& extension,
                             bool is_web_view_request,
                             std::string* content_security_policy,
                             const std::string** cross_origin_embedder_policy,
                             const std::string** cross_origin_opener_policy,
                             bool* send_cors_header,
                             bool* follow_symlinks_anywhere) { … }

bool IsPathEqualTo(const GURL& url, std::string_view test) { … }

bool IsFaviconURL(const GURL& url) { … }

bool IsBackgroundPageURL(const GURL& url) { … }

bool IsBackgroundServiceWorker(const Extension& extension,
                               const network::ResourceRequest& request) { … }

bool IsExtensionDocument(const Extension& extension,
                         const network::ResourceRequest& request) { … }

scoped_refptr<net::HttpResponseHeaders> BuildHttpHeaders(
    const std::string& content_security_policy,
    const std::string* cross_origin_embedder_policy,
    const std::string* cross_origin_opener_policy,
    const std::set<std::string>* origin_trial_tokens,
    bool send_cors_header,
    bool include_allow_service_worker_header) { … }

void AddCacheHeaders(net::HttpResponseHeaders& headers,
                     base::Time last_modified_time) { … }

class FileLoaderObserver : public content::FileURLLoaderObserver { … };

class ExtensionURLLoaderFactory;

class ExtensionURLLoader : public network::mojom::URLLoader { … };

class ExtensionURLLoaderFactory : public network::SelfDeletingURLLoaderFactory { … };

}  // namespace

void SetExtensionProtocolTestHandler(ExtensionProtocolTestHandler* handler) { … }

mojo::PendingRemote<network::mojom::URLLoaderFactory>
CreateExtensionNavigationURLLoaderFactory(
    content::BrowserContext* browser_context,
    bool is_web_view_request) { … }

mojo::PendingRemote<network::mojom::URLLoaderFactory>
CreateExtensionWorkerMainResourceURLLoaderFactory(
    content::BrowserContext* browser_context) { … }

mojo::PendingRemote<network::mojom::URLLoaderFactory>
CreateExtensionServiceWorkerScriptURLLoaderFactory(
    content::BrowserContext* browser_context) { … }

mojo::PendingRemote<network::mojom::URLLoaderFactory>
CreateExtensionURLLoaderFactory(int render_process_id, int render_frame_id) { … }

void EnsureExtensionURLLoaderFactoryShutdownNotifierFactoryBuilt() { … }

}  // namespace extensions
chromium/extensions/browser/extension_protocols.cc
