rlz/lib/rlz_lib.h - chromium/src - Git at Google

 // Copyright 2012 The Chromium Authors
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
 // A library to manage RLZ information for access-points shared
 // across different client applications.
 //
 // All functions return true on success and false on error.
 // This implemenation is thread safe.


 #ifndef RLZ_LIB_RLZ_LIB_H_
 #define RLZ_LIB_RLZ_LIB_H_

 #include <stddef.h>
 #include <stdio.h>
 #include <string>

 #include "build/build_config.h"

 #include "rlz/lib/rlz_api.h"
 #include "rlz/lib/rlz_enums.h"
 #include "rlz/lib/supplementary_branding.h"

 // Define one of
 // + RLZ_NETWORK_IMPLEMENTATION_WIN_INET: Uses win inet to send financial pings.
 // + RLZ_NETWORK_IMPLEMENTATION_CHROME_NET: Uses chrome's network stack to send
 //   financial pings. rlz_lib::SetURLLoaderFactory() must be called before
 //   any calls to SendFinancialPing().
 #if defined(RLZ_NETWORK_IMPLEMENTATION_WIN_INET) && \
     defined(RLZ_NETWORK_IMPLEMENTATION_CHROME_NET)
 #error Exactly one of RLZ_NETWORK_IMPLEMENTATION_WIN_INET and \
     RLZ_NETWORK_IMPLEMENTATION_CHROME_NET should be defined.
 #endif
 #if !defined(RLZ_NETWORK_IMPLEMENTATION_WIN_INET) && \
     !defined(RLZ_NETWORK_IMPLEMENTATION_CHROME_NET)
 #if BUILDFLAG(IS_WIN)
 #define RLZ_NETWORK_IMPLEMENTATION_WIN_INET
 #else
 #define RLZ_NETWORK_IMPLEMENTATION_CHROME_NET
 #endif
 #endif

 #if defined(RLZ_NETWORK_IMPLEMENTATION_CHROME_NET)
 namespace network {
 namespace mojom {
 class URLLoaderFactory;
 }  // namespace mojom
 }  // namespace network
 #endif

 namespace rlz_lib {

 // All functions return true on success and false on error.
 // This implemenation is thread safe.
 //
 // Each prototype mentions the registry access requirements:
 //
 // HKLM read:  Will work from any process and at any privilege level on Vista.
 // HKCU read:  Calls made from the SYSTEM account must pass the current user's
 //             SID as the optional 'sid' param. Can be called from low integrity
 //             process on Vista.
 // HKCU write: Calls made from the SYSTEM account must pass the current user's
 //             SID as the optional 'sid' param. Calls require at least medium
 //             integrity on Vista (e.g. Toolbar will need to use their broker)
 // HKLM write: Calls must be made from an account with admin rights. No SID
 //             need be passed when running as SYSTEM.
 // Functions which do not access registry will be marked with "no restrictions".

 // The maximum length of an access points RLZ in bytes.
 const size_t kMaxRlzLength = 64;
 // The maximum length of a CGI string in bytes.
 const size_t kMaxCgiLength = 2048;

 #if defined(RLZ_NETWORK_IMPLEMENTATION_CHROME_NET)
 // Set the URLLoaderFactory used by SendFinancialPing().
 bool RLZ_LIB_API SetURLLoaderFactory(network::mojom::URLLoaderFactory* factory);
 #endif

 // RLZ storage functions.

 // Get all the events reported by this product as a CGI string to append to
 // the daily ping.
 // Access: HKCU read.
 bool RLZ_LIB_API GetProductEventsAsCgi(Product product, char* unescaped_cgi,
                                        size_t unescaped_cgi_size);

 // Records an RLZ event.
 // Some events can be product-independent (e.g: First search from home page),
 // and some can be access point independent (e.g. Pack installed). However,
 // product independent events must still include the product which cares about
 // that information being reported.
 // Access: HKCU write.
 bool RLZ_LIB_API RecordProductEvent(Product product, AccessPoint point,
                                     Event event_id);

 // Clear an event reported by this product. This should be called after a
 // successful ping to the RLZ server.
 // Access: HKCU write.
 bool RLZ_LIB_API ClearProductEvent(Product product, AccessPoint point,
                                    Event event_id);

 // Clear all reported events and recorded stateful events of this product.
 // This should be called on complete uninstallation of the product.
 // Access: HKCU write.
 bool RLZ_LIB_API ClearAllProductEvents(Product product);

 // Get the RLZ value of the access point. If the access point is not Google, the
 // RLZ will be the empty string and the function will return false.
 // Access: HKCU read.
 bool RLZ_LIB_API GetAccessPointRlz(AccessPoint point, char* rlz,
                                    size_t rlz_size);

 // Set the RLZ for the access-point. Fails and asserts if called when the access
 // point is not set to Google.
 // new_rlz should come from a server-response. Client applications should not
 // create their own RLZ values.
 // Access: HKCU write.
 bool RLZ_LIB_API SetAccessPointRlz(AccessPoint point, const char* new_rlz);

 // Use |brand| to replace the brand code contained in existing access point RLZ
 // strings found in the RLZ data file. Return true if at least one access point
 // RLZ string is updated, otherwise return false (and the function is a no-op).
 // See https://crbug.com/846033.
 // Access: HKCU write.
 bool RLZ_LIB_API UpdateExistingAccessPointRlz(const std::string& brand);

 // Financial Server pinging functions.
 // These functions deal with pinging the RLZ financial server and parsing and
 // acting upon the response. Clients should SendFinancialPing() to avoid needing
 // these functions. However, these functions allow clients to split the various
 // parts of the pinging process up as needed (to avoid firewalls, etc).

 // Forms the HTTP request to send to the RLZ financial server.
 //
 // product            : The product to ping for.
 // access_points      : The access points this product affects. Array must be
 //                      terminated with NO_ACCESS_POINT.
 // product_signature  : The signature sent with daily pings (e.g. swg, ietb)
 // product_brand      : The brand of the pinging product, if any.
 // product_id         : The product-specific installation ID (can be NULL).
 // product_lang       : The language for the product (used to determine cohort).
 // exclude_machine_id : Whether the Machine ID should be explicitly excluded
 //                      based on the products privacy policy.
 // request            : The buffer where the function returns the HTTP request.
 // request_buffer_size: The size of the request buffer in bytes. The buffer
 //                      size (kMaxCgiLength+1) is guaranteed to be enough.
 //
 // Access: HKCU read.
 bool RLZ_LIB_API FormFinancialPingRequest(Product product,
                                           const AccessPoint* access_points,
                                           const char* product_signature,
                                           const char* product_brand,
                                           const char* product_id,
                                           const char* product_lang,
                                           bool exclude_machine_id,
                                           char* request,
                                           size_t request_buffer_size);

 // Complex helpers built on top of other functions.

 // Parses the responses from the financial server and updates product state
 // and access point RLZ's in registry. Like ParsePingResponse(), but also
 // updates the last ping time.
 // Access: HKCU write.
 bool RLZ_LIB_API ParseFinancialPingResponse(Product product,
                                             const char* response);

 // Send the ping with RLZs and events to the PSO server.
 // This ping method should be called daily. (More frequent calls will fail).
 // Also, if there are no events, the call will succeed only once a week.
 //
 // If RLZ_NETWORK_IMPLEMENTATION_CHROME_NET is set, SetURLLoaderFactory() needs
 // to be called before calling this function.
 //
 // product            : The product to ping for.
 // access_points      : The access points this product affects. Array must be
 //                      terminated with NO_ACCESS_POINT.
 // product_signature  : The signature sent with daily pings (e.g. swg, ietb)
 // product_brand      : The brand of the pinging product, if any.
 // product_id         : The product-specific installation ID (can be NULL).
 // product_lang       : The language for the product (used to determine cohort).
 // exclude_machine_id : Whether the Machine ID should be explicitly excluded
 //                      based on the products privacy policy.
 //
 // Returns true on successful ping and response, false otherwise.
 // Access: HKCU write.
 bool RLZ_LIB_API SendFinancialPing(Product product,
                                    const AccessPoint* access_points,
                                    const char* product_signature,
                                    const char* product_brand,
                                    const char* product_id,
                                    const char* product_lang,
                                    bool exclude_machine_id);

 // An alternate implementations of SendFinancialPing with the same behavior,
 // except the caller can optionally choose to skip the timing check.
 bool RLZ_LIB_API SendFinancialPing(Product product,
                                    const AccessPoint* access_points,
                                    const char* product_signature,
                                    const char* product_brand,
                                    const char* product_id,
                                    const char* product_lang,
                                    bool exclude_machine_id,
                                    const bool skip_time_check);

 // Parses RLZ related ping response information from the server.
 // Updates stored RLZ values and clears stored events accordingly.
 // Access: HKCU write.
 bool RLZ_LIB_API ParsePingResponse(Product product, const char* response);


 // Copies the events associated with the product and the RLZ's for each access
 // point in access_points into cgi. This string can be directly appended
 // to a ping (will need an & if not first paramter).
 // access_points must be an array of AccessPoints terminated with
 // NO_ACCESS_POINT.
 // Access: HKCU read.
 bool RLZ_LIB_API GetPingParams(Product product,
                                const AccessPoint* access_points,
                                char* unescaped_cgi, size_t unescaped_cgi_size);

 }  // namespace rlz_lib

 #endif  // RLZ_LIB_RLZ_LIB_H_
	// Copyright 2012 The Chromium Authors
	// Use of this source code is governed by a BSD-style license that can be
	// found in the LICENSE file.
	//
	// A library to manage RLZ information for access-points shared
	// across different client applications.
	//
	// All functions return true on success and false on error.
	// This implemenation is thread safe.


	#ifndef RLZ_LIB_RLZ_LIB_H_
	#define RLZ_LIB_RLZ_LIB_H_

	#include <stddef.h>
	#include <stdio.h>
	#include <string>

	#include "build/build_config.h"

	#include "rlz/lib/rlz_api.h"
	#include "rlz/lib/rlz_enums.h"
	#include "rlz/lib/supplementary_branding.h"

	// Define one of
	// + RLZ_NETWORK_IMPLEMENTATION_WIN_INET: Uses win inet to send financial pings.
	// + RLZ_NETWORK_IMPLEMENTATION_CHROME_NET: Uses chrome's network stack to send
	// financial pings. rlz_lib::SetURLLoaderFactory() must be called before
	// any calls to SendFinancialPing().
	#if defined(RLZ_NETWORK_IMPLEMENTATION_WIN_INET) && \
	defined(RLZ_NETWORK_IMPLEMENTATION_CHROME_NET)
	#error Exactly one of RLZ_NETWORK_IMPLEMENTATION_WIN_INET and \
	RLZ_NETWORK_IMPLEMENTATION_CHROME_NET should be defined.
	#endif
	#if !defined(RLZ_NETWORK_IMPLEMENTATION_WIN_INET) && \
	!defined(RLZ_NETWORK_IMPLEMENTATION_CHROME_NET)
	#if BUILDFLAG(IS_WIN)
	#define RLZ_NETWORK_IMPLEMENTATION_WIN_INET
	#else
	#define RLZ_NETWORK_IMPLEMENTATION_CHROME_NET
	#endif
	#endif

	#if defined(RLZ_NETWORK_IMPLEMENTATION_CHROME_NET)
	namespace network {
	namespace mojom {
	class URLLoaderFactory;
	} // namespace mojom
	} // namespace network
	#endif

	namespace rlz_lib {

	// All functions return true on success and false on error.
	// This implemenation is thread safe.
	//
	// Each prototype mentions the registry access requirements:
	//
	// HKLM read: Will work from any process and at any privilege level on Vista.
	// HKCU read: Calls made from the SYSTEM account must pass the current user's
	// SID as the optional 'sid' param. Can be called from low integrity
	// process on Vista.
	// HKCU write: Calls made from the SYSTEM account must pass the current user's
	// SID as the optional 'sid' param. Calls require at least medium
	// integrity on Vista (e.g. Toolbar will need to use their broker)
	// HKLM write: Calls must be made from an account with admin rights. No SID
	// need be passed when running as SYSTEM.
	// Functions which do not access registry will be marked with "no restrictions".

	// The maximum length of an access points RLZ in bytes.
	const size_t kMaxRlzLength = 64;
	// The maximum length of a CGI string in bytes.
	const size_t kMaxCgiLength = 2048;

	#if defined(RLZ_NETWORK_IMPLEMENTATION_CHROME_NET)
	// Set the URLLoaderFactory used by SendFinancialPing().
	bool RLZ_LIB_API SetURLLoaderFactory(network::mojom::URLLoaderFactory* factory);
	#endif

	// RLZ storage functions.

	// Get all the events reported by this product as a CGI string to append to
	// the daily ping.
	// Access: HKCU read.
	bool RLZ_LIB_API GetProductEventsAsCgi(Product product, char* unescaped_cgi,
	size_t unescaped_cgi_size);

	// Records an RLZ event.
	// Some events can be product-independent (e.g: First search from home page),
	// and some can be access point independent (e.g. Pack installed). However,
	// product independent events must still include the product which cares about
	// that information being reported.
	// Access: HKCU write.
	bool RLZ_LIB_API RecordProductEvent(Product product, AccessPoint point,
	Event event_id);

	// Clear an event reported by this product. This should be called after a
	// successful ping to the RLZ server.
	// Access: HKCU write.
	bool RLZ_LIB_API ClearProductEvent(Product product, AccessPoint point,
	Event event_id);

	// Clear all reported events and recorded stateful events of this product.
	// This should be called on complete uninstallation of the product.
	// Access: HKCU write.
	bool RLZ_LIB_API ClearAllProductEvents(Product product);

	// Get the RLZ value of the access point. If the access point is not Google, the
	// RLZ will be the empty string and the function will return false.
	// Access: HKCU read.
	bool RLZ_LIB_API GetAccessPointRlz(AccessPoint point, char* rlz,
	size_t rlz_size);

	// Set the RLZ for the access-point. Fails and asserts if called when the access
	// point is not set to Google.
	// new_rlz should come from a server-response. Client applications should not
	// create their own RLZ values.
	// Access: HKCU write.
	bool RLZ_LIB_API SetAccessPointRlz(AccessPoint point, const char* new_rlz);

	// Use \|brand\| to replace the brand code contained in existing access point RLZ
	// strings found in the RLZ data file. Return true if at least one access point
	// RLZ string is updated, otherwise return false (and the function is a no-op).
	// See https://crbug.com/846033.
	// Access: HKCU write.
	bool RLZ_LIB_API UpdateExistingAccessPointRlz(const std::string& brand);

	// Financial Server pinging functions.
	// These functions deal with pinging the RLZ financial server and parsing and
	// acting upon the response. Clients should SendFinancialPing() to avoid needing
	// these functions. However, these functions allow clients to split the various
	// parts of the pinging process up as needed (to avoid firewalls, etc).

	// Forms the HTTP request to send to the RLZ financial server.
	//
	// product : The product to ping for.
	// access_points : The access points this product affects. Array must be
	// terminated with NO_ACCESS_POINT.
	// product_signature : The signature sent with daily pings (e.g. swg, ietb)
	// product_brand : The brand of the pinging product, if any.
	// product_id : The product-specific installation ID (can be NULL).
	// product_lang : The language for the product (used to determine cohort).
	// exclude_machine_id : Whether the Machine ID should be explicitly excluded
	// based on the products privacy policy.
	// request : The buffer where the function returns the HTTP request.
	// request_buffer_size: The size of the request buffer in bytes. The buffer
	// size (kMaxCgiLength+1) is guaranteed to be enough.
	//
	// Access: HKCU read.
	bool RLZ_LIB_API FormFinancialPingRequest(Product product,
	const AccessPoint* access_points,
	const char* product_signature,
	const char* product_brand,
	const char* product_id,
	const char* product_lang,
	bool exclude_machine_id,
	char* request,
	size_t request_buffer_size);

	// Complex helpers built on top of other functions.

	// Parses the responses from the financial server and updates product state
	// and access point RLZ's in registry. Like ParsePingResponse(), but also
	// updates the last ping time.
	// Access: HKCU write.
	bool RLZ_LIB_API ParseFinancialPingResponse(Product product,
	const char* response);

	// Send the ping with RLZs and events to the PSO server.
	// This ping method should be called daily. (More frequent calls will fail).
	// Also, if there are no events, the call will succeed only once a week.
	//
	// If RLZ_NETWORK_IMPLEMENTATION_CHROME_NET is set, SetURLLoaderFactory() needs
	// to be called before calling this function.
	//
	// product : The product to ping for.
	// access_points : The access points this product affects. Array must be
	// terminated with NO_ACCESS_POINT.
	// product_signature : The signature sent with daily pings (e.g. swg, ietb)
	// product_brand : The brand of the pinging product, if any.
	// product_id : The product-specific installation ID (can be NULL).
	// product_lang : The language for the product (used to determine cohort).
	// exclude_machine_id : Whether the Machine ID should be explicitly excluded
	// based on the products privacy policy.
	//
	// Returns true on successful ping and response, false otherwise.
	// Access: HKCU write.
	bool RLZ_LIB_API SendFinancialPing(Product product,
	const AccessPoint* access_points,
	const char* product_signature,
	const char* product_brand,
	const char* product_id,
	const char* product_lang,
	bool exclude_machine_id);

	// An alternate implementations of SendFinancialPing with the same behavior,
	// except the caller can optionally choose to skip the timing check.
	bool RLZ_LIB_API SendFinancialPing(Product product,
	const AccessPoint* access_points,
	const char* product_signature,
	const char* product_brand,
	const char* product_id,
	const char* product_lang,
	bool exclude_machine_id,
	const bool skip_time_check);

	// Parses RLZ related ping response information from the server.
	// Updates stored RLZ values and clears stored events accordingly.
	// Access: HKCU write.
	bool RLZ_LIB_API ParsePingResponse(Product product, const char* response);


	// Copies the events associated with the product and the RLZ's for each access
	// point in access_points into cgi. This string can be directly appended
	// to a ping (will need an & if not first paramter).
	// access_points must be an array of AccessPoints terminated with
	// NO_ACCESS_POINT.
	// Access: HKCU read.
	bool RLZ_LIB_API GetPingParams(Product product,
	const AccessPoint* access_points,
	char* unescaped_cgi, size_t unescaped_cgi_size);

	} // namespace rlz_lib

	#endif // RLZ_LIB_RLZ_LIB_H_