components/cronet/url_request_context_config.h - platform/external/cronet - Git at Google

 // 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.

 #ifndef COMPONENTS_CRONET_URL_REQUEST_CONTEXT_CONFIG_H_
 #define COMPONENTS_CRONET_URL_REQUEST_CONTEXT_CONFIG_H_

 #include <memory>
 #include <string>
 #include <vector>

 #include "base/time/time.h"
 #include "base/values.h"
 #include "net/base/hash_value.h"
 #include "net/base/network_handle.h"
 #include "net/cert/cert_verifier.h"
 #include "net/nqe/effective_connection_type.h"
 #include "third_party/abseil-cpp/absl/types/optional.h"
 #include "url/origin.h"

 namespace net {
 class CertVerifier;
 struct HttpNetworkSessionParams;
 struct QuicParams;
 class URLRequestContextBuilder;
 }  // namespace net

 namespace cronet {

 // Common configuration parameters used by Cronet to configure
 // URLRequestContext.
 // TODO(mgersh): This shouldn't be a struct, and experimental option parsing
 // should be kept more separate from applying the configuration.
 struct URLRequestContextConfig {
   // Type of HTTP cache.
   // GENERATED_JAVA_ENUM_PACKAGE: org.chromium.net.impl
   enum HttpCacheType {
     // No HTTP cache.
     DISABLED,
     // HTTP cache persisted to disk.
     DISK,
     // HTTP cache kept in memory.
     MEMORY,
   };

   // App-provided hint that server supports QUIC.
   struct QuicHint {
     QuicHint(const std::string& host, int port, int alternate_port);

     QuicHint(const QuicHint&) = delete;
     QuicHint& operator=(const QuicHint&) = delete;

     ~QuicHint();

     // Host name of the server that supports QUIC.
     const std::string host;
     // Port of the server that supports QUIC.
     const int port;
     // Alternate protocol port.
     const int alternate_port;
   };

   // Public-Key-Pinning configuration structure.
   struct Pkp {
     Pkp(const std::string& host,
         bool include_subdomains,
         const base::Time& expiration_date);

     Pkp(const Pkp&) = delete;
     Pkp& operator=(const Pkp&) = delete;

     ~Pkp();

     // Host name.
     const std::string host;
     // Pin hashes (currently SHA256 only).
     net::HashValueVector pin_hashes;
     // Indicates whether the pinning should apply to the pinned host subdomains.
     const bool include_subdomains;
     // Expiration date for the pins.
     const base::Time expiration_date;
   };

   // Simulated headers, used to preconfigure the Reporting API and Network Error
   // Logging before receiving those actual configuration headers from the
   // origins.
   struct PreloadedNelAndReportingHeader {
     PreloadedNelAndReportingHeader(const url::Origin& origin,
                                    std::string value);
     ~PreloadedNelAndReportingHeader();

     // Origin that is "sending" this header.
     const url::Origin origin;

     // Value of the header that is "sent".
     const std::string value;
   };

   URLRequestContextConfig(const URLRequestContextConfig&) = delete;
   URLRequestContextConfig& operator=(const URLRequestContextConfig&) = delete;

   ~URLRequestContextConfig();

   // Configures |context_builder| based on |this|.
   void ConfigureURLRequestContextBuilder(
       net::URLRequestContextBuilder* context_builder,
       net::handles::NetworkHandle bound_network =
           net::handles::kInvalidNetworkHandle);

   // Enable QUIC.
   const bool enable_quic;
   // Enable SPDY.
   const bool enable_spdy;
   // Enable Brotli.
   const bool enable_brotli;
   // Type of http cache.
   const HttpCacheType http_cache;
   // Max size of http cache in bytes.
   const int http_cache_max_size;
   // Disable caching for HTTP responses. Other information may be stored in
   // the cache.
   const bool load_disable_cache;
   // Storage path for http cache and cookie storage.
   const std::string storage_path;
   // Accept-Language request header field.
   const std::string accept_language;
   // User-Agent request header field.
   const std::string user_agent;

   // Certificate verifier for testing.
   std::unique_ptr<net::CertVerifier> mock_cert_verifier;

   // Enable Network Quality Estimator (NQE).
   const bool enable_network_quality_estimator;

   // Enable public key pinning bypass for local trust anchors.
   const bool bypass_public_key_pinning_for_local_trust_anchors;

   // App-provided list of servers that support QUIC.
   std::vector<std::unique_ptr<QuicHint>> quic_hints;

   // The list of public key pins.
   std::vector<std::unique_ptr<Pkp>> pkp_list;

   // Enable DNS cache persistence.
   bool enable_host_cache_persistence = false;

   // Minimum time in milliseconds between writing the HostCache contents to
   // prefs. Only relevant when |enable_host_cache_persistence| is true.
   int host_cache_persistence_delay_ms = 60000;

   // Experimental options that are recognized by the config parser.
   base::Value::Dict effective_experimental_options;
   base::Value::Dict experimental_options;

   // If set, forces NQE to return the set value as the effective connection
   // type.
   absl::optional<net::EffectiveConnectionType>
       nqe_forced_effective_connection_type;

   // Preloaded Report-To headers, to preconfigure the Reporting API.
   std::vector<PreloadedNelAndReportingHeader> preloaded_report_to_headers;

   // Preloaded NEL headers, to preconfigure Network Error Logging.
   std::vector<PreloadedNelAndReportingHeader> preloaded_nel_headers;

   // Optional network thread priority.
   // On Android, corresponds to android.os.Process.setThreadPriority() values.
   const absl::optional<double> network_thread_priority;

   // Whether the connection status of active bidirectional streams should be
   // monitored.
   bool bidi_stream_detect_broken_connection;
   // If |bidi_stream_detect_broken_connection_| is true, this suggests the
   // period of the heartbeat signal.
   base::TimeDelta heartbeat_interval;

   // Whether Cronet Telemetry should be enabled or not.
   bool enable_telemetry;

   static bool ExperimentalOptionsParsingIsAllowedToFail() {
     return DCHECK_IS_ON();
   }

   static std::unique_ptr<URLRequestContextConfig> CreateURLRequestContextConfig(
       // Enable QUIC.
       bool enable_quic,
       // Enable SPDY.
       bool enable_spdy,
       // Enable Brotli.
       bool enable_brotli,
       // Type of http cache.
       HttpCacheType http_cache,
       // Max size of http cache in bytes.
       int http_cache_max_size,
       // Disable caching for HTTP responses. Other information may be stored in
       // the cache.
       bool load_disable_cache,
       // Storage path for http cache and cookie storage.
       const std::string& storage_path,
       // Accept-Language request header field.
       const std::string& accept_language,
       // User-Agent request header field.
       const std::string& user_agent,
       // JSON encoded experimental options.
       const std::string& unparsed_experimental_options,
       // MockCertVerifier to use for testing purposes.
       std::unique_ptr<net::CertVerifier> mock_cert_verifier,
       // Enable network quality estimator.
       bool enable_network_quality_estimator,
       // Enable bypassing of public key pinning for local trust anchors
       bool bypass_public_key_pinning_for_local_trust_anchors,
       // Optional network thread priority.
       // On Android, corresponds to android.os.Process.setThreadPriority()
       // values. Do not specify for other targets.
       absl::optional<double> network_thread_priority);

  private:
   URLRequestContextConfig(
       // Enable QUIC.
       bool enable_quic,
       // Enable SPDY.
       bool enable_spdy,
       // Enable Brotli.
       bool enable_brotli,
       // Type of http cache.
       HttpCacheType http_cache,
       // Max size of http cache in bytes.
       int http_cache_max_size,
       // Disable caching for HTTP responses. Other information may be stored in
       // the cache.
       bool load_disable_cache,
       // Storage path for http cache and cookie storage.
       const std::string& storage_path,
       // Accept-Language request header field.
       const std::string& accept_language,
       // User-Agent request header field.
       const std::string& user_agent,
       // Parsed experimental options.
       base::Value::Dict experimental_options,
       // MockCertVerifier to use for testing purposes.
       std::unique_ptr<net::CertVerifier> mock_cert_verifier,
       // Enable network quality estimator.
       bool enable_network_quality_estimator,
       // Enable bypassing of public key pinning for local trust anchors
       bool bypass_public_key_pinning_for_local_trust_anchors,
       // Optional network thread priority.
       // On Android, corresponds to android.os.Process.setThreadPriority()
       // values. Do not specify for other targets.
       absl::optional<double> network_thread_priority);

   // Parses experimental options from their JSON format to the format used
   // internally.
   // Returns an empty optional if the operation was unsuccessful.
   static absl::optional<base::Value::Dict> ParseExperimentalOptions(
       std::string unparsed_experimental_options);

   // Makes appropriate changes to settings in |this|.
   void SetContextConfigExperimentalOptions();

   // Makes appropriate changes to settings in the URLRequestContextBuilder.
   void SetContextBuilderExperimentalOptions(
       net::URLRequestContextBuilder* context_builder,
       net::HttpNetworkSessionParams* session_params,
       net::QuicParams* quic_params,
       net::handles::NetworkHandle bound_network);
 };

 // Stores intermediate state for URLRequestContextConfig.  Initializes with
 // (mostly) sane defaults, then the appropriate member variables can be
 // modified, and it can be finalized with Build().
 struct URLRequestContextConfigBuilder {
   URLRequestContextConfigBuilder();

   URLRequestContextConfigBuilder(const URLRequestContextConfigBuilder&) =
       delete;
   URLRequestContextConfigBuilder& operator=(
       const URLRequestContextConfigBuilder&) = delete;

   ~URLRequestContextConfigBuilder();

   // Finalize state into a URLRequestContextConfig.  Must only be called once,
   // as once |mock_cert_verifier| is moved into a URLRequestContextConfig, it
   // cannot be used again.
   std::unique_ptr<URLRequestContextConfig> Build();

   // Enable QUIC.
   bool enable_quic = true;
   // Enable SPDY.
   bool enable_spdy = true;
   // Enable Brotli.
   bool enable_brotli = false;
   // Type of http cache.
   URLRequestContextConfig::HttpCacheType http_cache =
       URLRequestContextConfig::DISABLED;
   // Max size of http cache in bytes.
   int http_cache_max_size = 0;
   // Disable caching for HTTP responses. Other information may be stored in
   // the cache.
   bool load_disable_cache = false;
   // Storage path for http cache and cookie storage.
   std::string storage_path = "";
   // Accept-Language request header field.
   std::string accept_language = "";
   // User-Agent request header field.
   std::string user_agent = "";
   // Experimental options encoded as a string in a JSON format containing
   // experiments and their corresponding configuration options. The format
   // is a JSON object with the name of the experiment as the key, and the
   // configuration options as the value. An example:
   //   {"experiment1": {"option1": "option_value1", "option2": "option_value2",
   //    ...}, "experiment2: {"option3", "option_value3", ...}, ...}
   std::string experimental_options = "{}";

   // Certificate verifier for testing.
   std::unique_ptr<net::CertVerifier> mock_cert_verifier;

   // Enable network quality estimator.
   bool enable_network_quality_estimator = false;

   // Enable public key pinning bypass for local trust anchors.
   bool bypass_public_key_pinning_for_local_trust_anchors = true;

   // Optional network thread priority.
   // On Android, corresponds to android.os.Process.setThreadPriority() values.
   // Do not specify for other targets.
   absl::optional<double> network_thread_priority;
 };

 }  // namespace cronet

 #endif  // COMPONENTS_CRONET_URL_REQUEST_CONTEXT_CONFIG_H_
	// 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.

	#ifndef COMPONENTS_CRONET_URL_REQUEST_CONTEXT_CONFIG_H_
	#define COMPONENTS_CRONET_URL_REQUEST_CONTEXT_CONFIG_H_

	#include <memory>
	#include <string>
	#include <vector>

	#include "base/time/time.h"
	#include "base/values.h"
	#include "net/base/hash_value.h"
	#include "net/base/network_handle.h"
	#include "net/cert/cert_verifier.h"
	#include "net/nqe/effective_connection_type.h"
	#include "third_party/abseil-cpp/absl/types/optional.h"
	#include "url/origin.h"

	namespace net {
	class CertVerifier;
	struct HttpNetworkSessionParams;
	struct QuicParams;
	class URLRequestContextBuilder;
	} // namespace net

	namespace cronet {

	// Common configuration parameters used by Cronet to configure
	// URLRequestContext.
	// TODO(mgersh): This shouldn't be a struct, and experimental option parsing
	// should be kept more separate from applying the configuration.
	struct URLRequestContextConfig {
	// Type of HTTP cache.
	// GENERATED_JAVA_ENUM_PACKAGE: org.chromium.net.impl
	enum HttpCacheType {
	// No HTTP cache.
	DISABLED,
	// HTTP cache persisted to disk.
	DISK,
	// HTTP cache kept in memory.
	MEMORY,
	};

	// App-provided hint that server supports QUIC.
	struct QuicHint {
	QuicHint(const std::string& host, int port, int alternate_port);

	QuicHint(const QuicHint&) = delete;
	QuicHint& operator=(const QuicHint&) = delete;

	~QuicHint();

	// Host name of the server that supports QUIC.
	const std::string host;
	// Port of the server that supports QUIC.
	const int port;
	// Alternate protocol port.
	const int alternate_port;
	};

	// Public-Key-Pinning configuration structure.
	struct Pkp {
	Pkp(const std::string& host,
	bool include_subdomains,
	const base::Time& expiration_date);

	Pkp(const Pkp&) = delete;
	Pkp& operator=(const Pkp&) = delete;

	~Pkp();

	// Host name.
	const std::string host;
	// Pin hashes (currently SHA256 only).
	net::HashValueVector pin_hashes;
	// Indicates whether the pinning should apply to the pinned host subdomains.
	const bool include_subdomains;
	// Expiration date for the pins.
	const base::Time expiration_date;
	};

	// Simulated headers, used to preconfigure the Reporting API and Network Error
	// Logging before receiving those actual configuration headers from the
	// origins.
	struct PreloadedNelAndReportingHeader {
	PreloadedNelAndReportingHeader(const url::Origin& origin,
	std::string value);
	~PreloadedNelAndReportingHeader();

	// Origin that is "sending" this header.
	const url::Origin origin;

	// Value of the header that is "sent".
	const std::string value;
	};

	URLRequestContextConfig(const URLRequestContextConfig&) = delete;
	URLRequestContextConfig& operator=(const URLRequestContextConfig&) = delete;

	~URLRequestContextConfig();

	// Configures \|context_builder\| based on \|this\|.
	void ConfigureURLRequestContextBuilder(
	net::URLRequestContextBuilder* context_builder,
	net::handles::NetworkHandle bound_network =
	net::handles::kInvalidNetworkHandle);

	// Enable QUIC.
	const bool enable_quic;
	// Enable SPDY.
	const bool enable_spdy;
	// Enable Brotli.
	const bool enable_brotli;
	// Type of http cache.
	const HttpCacheType http_cache;
	// Max size of http cache in bytes.
	const int http_cache_max_size;
	// Disable caching for HTTP responses. Other information may be stored in
	// the cache.
	const bool load_disable_cache;
	// Storage path for http cache and cookie storage.
	const std::string storage_path;
	// Accept-Language request header field.
	const std::string accept_language;
	// User-Agent request header field.
	const std::string user_agent;

	// Certificate verifier for testing.
	std::unique_ptr<net::CertVerifier> mock_cert_verifier;

	// Enable Network Quality Estimator (NQE).
	const bool enable_network_quality_estimator;

	// Enable public key pinning bypass for local trust anchors.
	const bool bypass_public_key_pinning_for_local_trust_anchors;

	// App-provided list of servers that support QUIC.
	std::vector<std::unique_ptr<QuicHint>> quic_hints;

	// The list of public key pins.
	std::vector<std::unique_ptr<Pkp>> pkp_list;

	// Enable DNS cache persistence.
	bool enable_host_cache_persistence = false;

	// Minimum time in milliseconds between writing the HostCache contents to
	// prefs. Only relevant when \|enable_host_cache_persistence\| is true.
	int host_cache_persistence_delay_ms = 60000;

	// Experimental options that are recognized by the config parser.
	base::Value::Dict effective_experimental_options;
	base::Value::Dict experimental_options;

	// If set, forces NQE to return the set value as the effective connection
	// type.
	absl::optional<net::EffectiveConnectionType>
	nqe_forced_effective_connection_type;

	// Preloaded Report-To headers, to preconfigure the Reporting API.
	std::vector<PreloadedNelAndReportingHeader> preloaded_report_to_headers;

	// Preloaded NEL headers, to preconfigure Network Error Logging.
	std::vector<PreloadedNelAndReportingHeader> preloaded_nel_headers;

	// Optional network thread priority.
	// On Android, corresponds to android.os.Process.setThreadPriority() values.
	const absl::optional<double> network_thread_priority;

	// Whether the connection status of active bidirectional streams should be
	// monitored.
	bool bidi_stream_detect_broken_connection;
	// If \|bidi_stream_detect_broken_connection_\| is true, this suggests the
	// period of the heartbeat signal.
	base::TimeDelta heartbeat_interval;

	// Whether Cronet Telemetry should be enabled or not.
	bool enable_telemetry;

	static bool ExperimentalOptionsParsingIsAllowedToFail() {
	return DCHECK_IS_ON();
	}

	static std::unique_ptr<URLRequestContextConfig> CreateURLRequestContextConfig(
	// Enable QUIC.
	bool enable_quic,
	// Enable SPDY.
	bool enable_spdy,
	// Enable Brotli.
	bool enable_brotli,
	// Type of http cache.
	HttpCacheType http_cache,
	// Max size of http cache in bytes.
	int http_cache_max_size,
	// Disable caching for HTTP responses. Other information may be stored in
	// the cache.
	bool load_disable_cache,
	// Storage path for http cache and cookie storage.
	const std::string& storage_path,
	// Accept-Language request header field.
	const std::string& accept_language,
	// User-Agent request header field.
	const std::string& user_agent,
	// JSON encoded experimental options.
	const std::string& unparsed_experimental_options,
	// MockCertVerifier to use for testing purposes.
	std::unique_ptr<net::CertVerifier> mock_cert_verifier,
	// Enable network quality estimator.
	bool enable_network_quality_estimator,
	// Enable bypassing of public key pinning for local trust anchors
	bool bypass_public_key_pinning_for_local_trust_anchors,
	// Optional network thread priority.
	// On Android, corresponds to android.os.Process.setThreadPriority()
	// values. Do not specify for other targets.
	absl::optional<double> network_thread_priority);

	private:
	URLRequestContextConfig(
	// Enable QUIC.
	bool enable_quic,
	// Enable SPDY.
	bool enable_spdy,
	// Enable Brotli.
	bool enable_brotli,
	// Type of http cache.
	HttpCacheType http_cache,
	// Max size of http cache in bytes.
	int http_cache_max_size,
	// Disable caching for HTTP responses. Other information may be stored in
	// the cache.
	bool load_disable_cache,
	// Storage path for http cache and cookie storage.
	const std::string& storage_path,
	// Accept-Language request header field.
	const std::string& accept_language,
	// User-Agent request header field.
	const std::string& user_agent,
	// Parsed experimental options.
	base::Value::Dict experimental_options,
	// MockCertVerifier to use for testing purposes.
	std::unique_ptr<net::CertVerifier> mock_cert_verifier,
	// Enable network quality estimator.
	bool enable_network_quality_estimator,
	// Enable bypassing of public key pinning for local trust anchors
	bool bypass_public_key_pinning_for_local_trust_anchors,
	// Optional network thread priority.
	// On Android, corresponds to android.os.Process.setThreadPriority()
	// values. Do not specify for other targets.
	absl::optional<double> network_thread_priority);

	// Parses experimental options from their JSON format to the format used
	// internally.
	// Returns an empty optional if the operation was unsuccessful.
	static absl::optional<base::Value::Dict> ParseExperimentalOptions(
	std::string unparsed_experimental_options);

	// Makes appropriate changes to settings in \|this\|.
	void SetContextConfigExperimentalOptions();

	// Makes appropriate changes to settings in the URLRequestContextBuilder.
	void SetContextBuilderExperimentalOptions(
	net::URLRequestContextBuilder* context_builder,
	net::HttpNetworkSessionParams* session_params,
	net::QuicParams* quic_params,
	net::handles::NetworkHandle bound_network);
	};

	// Stores intermediate state for URLRequestContextConfig. Initializes with
	// (mostly) sane defaults, then the appropriate member variables can be
	// modified, and it can be finalized with Build().
	struct URLRequestContextConfigBuilder {
	URLRequestContextConfigBuilder();

	URLRequestContextConfigBuilder(const URLRequestContextConfigBuilder&) =
	delete;
	URLRequestContextConfigBuilder& operator=(
	const URLRequestContextConfigBuilder&) = delete;

	~URLRequestContextConfigBuilder();

	// Finalize state into a URLRequestContextConfig. Must only be called once,
	// as once \|mock_cert_verifier\| is moved into a URLRequestContextConfig, it
	// cannot be used again.
	std::unique_ptr<URLRequestContextConfig> Build();

	// Enable QUIC.
	bool enable_quic = true;
	// Enable SPDY.
	bool enable_spdy = true;
	// Enable Brotli.
	bool enable_brotli = false;
	// Type of http cache.
	URLRequestContextConfig::HttpCacheType http_cache =
	URLRequestContextConfig::DISABLED;
	// Max size of http cache in bytes.
	int http_cache_max_size = 0;
	// Disable caching for HTTP responses. Other information may be stored in
	// the cache.
	bool load_disable_cache = false;
	// Storage path for http cache and cookie storage.
	std::string storage_path = "";
	// Accept-Language request header field.
	std::string accept_language = "";
	// User-Agent request header field.
	std::string user_agent = "";
	// Experimental options encoded as a string in a JSON format containing
	// experiments and their corresponding configuration options. The format
	// is a JSON object with the name of the experiment as the key, and the
	// configuration options as the value. An example:
	// {"experiment1": {"option1": "option_value1", "option2": "option_value2",
	// ...}, "experiment2: {"option3", "option_value3", ...}, ...}
	std::string experimental_options = "{}";

	// Certificate verifier for testing.
	std::unique_ptr<net::CertVerifier> mock_cert_verifier;

	// Enable network quality estimator.
	bool enable_network_quality_estimator = false;

	// Enable public key pinning bypass for local trust anchors.
	bool bypass_public_key_pinning_for_local_trust_anchors = true;

	// Optional network thread priority.
	// On Android, corresponds to android.os.Process.setThreadPriority() values.
	// Do not specify for other targets.
	absl::optional<double> network_thread_priority;
	};

	} // namespace cronet

	#endif // COMPONENTS_CRONET_URL_REQUEST_CONTEXT_CONFIG_H_