open source

This commit is contained in:
lvfulong
2020-11-11 16:17:13 +08:00
parent 4d989f3ecb
commit bc4ca748de
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/*
Copyright (c) 2012-2015, Pierre-Olivier Latour
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* The name of Pierre-Olivier Latour may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL PIERRE-OLIVIER LATOUR BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#import <TargetConditionals.h>
#import "GCDWebServerRequest.h"
#import "GCDWebServerResponse.h"
NS_ASSUME_NONNULL_BEGIN
/**
* The GCDWebServerMatchBlock is called for every handler added to the
* GCDWebServer whenever a new HTTP request has started (i.e. HTTP headers have
* been received). The block is passed the basic info for the request (HTTP method,
* URL, headers...) and must decide if it wants to handle it or not.
*
* If the handler can handle the request, the block must return a new
* GCDWebServerRequest instance created with the same basic info.
* Otherwise, it simply returns nil.
*/
typedef GCDWebServerRequest* _Nullable (^GCDWebServerMatchBlock)(NSString* requestMethod, NSURL* requestURL, NSDictionary* requestHeaders, NSString* urlPath, NSDictionary* urlQuery);
/**
* The GCDWebServerProcessBlock is called after the HTTP request has been fully
* received (i.e. the entire HTTP body has been read). The block is passed the
* GCDWebServerRequest created at the previous step by the GCDWebServerMatchBlock.
*
* The block must return a GCDWebServerResponse or nil on error, which will
* result in a 500 HTTP status code returned to the client. It's however
* recommended to return a GCDWebServerErrorResponse on error so more useful
* information can be returned to the client.
*/
typedef GCDWebServerResponse* _Nullable (^GCDWebServerProcessBlock)(__kindof GCDWebServerRequest* request);
/**
* The GCDWebServerAsynchronousProcessBlock works like the GCDWebServerProcessBlock
* except the GCDWebServerResponse can be returned to the server at a later time
* allowing for asynchronous generation of the response.
*
* The block must eventually call "completionBlock" passing a GCDWebServerResponse
* or nil on error, which will result in a 500 HTTP status code returned to the client.
* It's however recommended to return a GCDWebServerErrorResponse on error so more
* useful information can be returned to the client.
*/
typedef void (^GCDWebServerCompletionBlock)(GCDWebServerResponse* _Nullable response);
typedef void (^GCDWebServerAsyncProcessBlock)(__kindof GCDWebServerRequest* request, GCDWebServerCompletionBlock completionBlock);
/**
* The port used by the GCDWebServer (NSNumber / NSUInteger).
*
* The default value is 0 i.e. let the OS pick a random port.
*/
extern NSString* const GCDWebServerOption_Port;
/**
* The Bonjour name used by the GCDWebServer (NSString). If set to an empty string,
* the name will automatically take the value of the GCDWebServerOption_ServerName
* option. If this option is set to nil, Bonjour will be disabled.
*
* The default value is nil.
*/
extern NSString* const GCDWebServerOption_BonjourName;
/**
* The Bonjour service type used by the GCDWebServer (NSString).
*
* The default value is "_http._tcp", the service type for HTTP web servers.
*/
extern NSString* const GCDWebServerOption_BonjourType;
/**
* Request a port mapping in the NAT gateway (NSNumber / BOOL).
*
* This uses the DNSService API under the hood which supports IPv4 mappings only.
*
* The default value is NO.
*
* @warning The external port set up by the NAT gateway may be different than
* the one used by the GCDWebServer.
*/
extern NSString* const GCDWebServerOption_RequestNATPortMapping;
/**
* Only accept HTTP requests coming from localhost i.e. not from the outside
* network (NSNumber / BOOL).
*
* The default value is NO.
*
* @warning Bonjour and NAT port mapping should be disabled if using this option
* since the server will not be reachable from the outside network anyway.
*/
extern NSString* const GCDWebServerOption_BindToLocalhost;
/**
* The maximum number of incoming HTTP requests that can be queued waiting to
* be handled before new ones are dropped (NSNumber / NSUInteger).
*
* The default value is 16.
*/
extern NSString* const GCDWebServerOption_MaxPendingConnections;
/**
* The value for "Server" HTTP header used by the GCDWebServer (NSString).
*
* The default value is the GCDWebServer class name.
*/
extern NSString* const GCDWebServerOption_ServerName;
/**
* The authentication method used by the GCDWebServer
* (one of "GCDWebServerAuthenticationMethod_...").
*
* The default value is nil i.e. authentication is disabled.
*/
extern NSString* const GCDWebServerOption_AuthenticationMethod;
/**
* The authentication realm used by the GCDWebServer (NSString).
*
* The default value is the same as the GCDWebServerOption_ServerName option.
*/
extern NSString* const GCDWebServerOption_AuthenticationRealm;
/**
* The authentication accounts used by the GCDWebServer
* (NSDictionary of username / password pairs).
*
* The default value is nil i.e. no accounts.
*/
extern NSString* const GCDWebServerOption_AuthenticationAccounts;
/**
* The class used by the GCDWebServer when instantiating GCDWebServerConnection
* (subclass of GCDWebServerConnection).
*
* The default value is the GCDWebServerConnection class.
*/
extern NSString* const GCDWebServerOption_ConnectionClass;
/**
* Allow the GCDWebServer to pretend "HEAD" requests are actually "GET" ones
* and automatically discard the HTTP body of the response (NSNumber / BOOL).
*
* The default value is YES.
*/
extern NSString* const GCDWebServerOption_AutomaticallyMapHEADToGET;
/**
* The interval expressed in seconds used by the GCDWebServer to decide how to
* coalesce calls to -webServerDidConnect: and -webServerDidDisconnect:
* (NSNumber / double). Coalescing will be disabled if the interval is <= 0.0.
*
* The default value is 1.0 second.
*/
extern NSString* const GCDWebServerOption_ConnectedStateCoalescingInterval;
/**
* Set the dispatch queue priority on which server connection will be
* run (NSNumber / long).
*
*
* The default value is DISPATCH_QUEUE_PRIORITY_DEFAULT.
*/
extern NSString* const GCDWebServerOption_DispatchQueuePriority;
#if TARGET_OS_IPHONE
/**
* Enables the GCDWebServer to automatically suspend itself (as if -stop was
* called) when the iOS app goes into the background and the last
* GCDWebServerConnection is closed, then resume itself (as if -start was called)
* when the iOS app comes back to the foreground (NSNumber / BOOL).
*
* See the README.md file for more information about this option.
*
* The default value is YES.
*
* @warning The running property will be NO while the GCDWebServer is suspended.
*/
extern NSString* const GCDWebServerOption_AutomaticallySuspendInBackground;
#endif
/**
* HTTP Basic Authentication scheme (see https://tools.ietf.org/html/rfc2617).
*
* @warning Use of this authentication scheme is not recommended as the
* passwords are sent in clear.
*/
extern NSString* const GCDWebServerAuthenticationMethod_Basic;
/**
* HTTP Digest Access Authentication scheme (see https://tools.ietf.org/html/rfc2617).
*/
extern NSString* const GCDWebServerAuthenticationMethod_DigestAccess;
@class GCDWebServer;
/**
* Delegate methods for GCDWebServer.
*
* @warning These methods are always called on the main thread in a serialized way.
*/
@protocol GCDWebServerDelegate <NSObject>
@optional
/**
* This method is called after the server has successfully started.
*/
- (void)webServerDidStart:(GCDWebServer*)server;
/**
* This method is called after the Bonjour registration for the server has
* successfully completed.
*
* Use the "bonjourServerURL" property to retrieve the Bonjour address of the
* server.
*/
- (void)webServerDidCompleteBonjourRegistration:(GCDWebServer*)server;
/**
* This method is called after the NAT port mapping for the server has been
* updated.
*
* Use the "publicServerURL" property to retrieve the public address of the
* server.
*/
- (void)webServerDidUpdateNATPortMapping:(GCDWebServer*)server;
/**
* This method is called when the first GCDWebServerConnection is opened by the
* server to serve a series of HTTP requests.
*
* A series of HTTP requests is considered ongoing as long as new HTTP requests
* keep coming (and new GCDWebServerConnection instances keep being opened),
* until before the last HTTP request has been responded to (and the
* corresponding last GCDWebServerConnection closed).
*/
- (void)webServerDidConnect:(GCDWebServer*)server;
/**
* This method is called when the last GCDWebServerConnection is closed after
* the server has served a series of HTTP requests.
*
* The GCDWebServerOption_ConnectedStateCoalescingInterval option can be used
* to have the server wait some extra delay before considering that the series
* of HTTP requests has ended (in case there some latency between consecutive
* requests). This effectively coalesces the calls to -webServerDidConnect:
* and -webServerDidDisconnect:.
*/
- (void)webServerDidDisconnect:(GCDWebServer*)server;
/**
* This method is called after the server has stopped.
*/
- (void)webServerDidStop:(GCDWebServer*)server;
@end
/**
* The GCDWebServer class listens for incoming HTTP requests on a given port,
* then passes each one to a "handler" capable of generating an HTTP response
* for it, which is then sent back to the client.
*
* GCDWebServer instances can be created and used from any thread but it's
* recommended to have the main thread's runloop be running so internal callbacks
* can be handled e.g. for Bonjour registration.
*
* See the README.md file for more information about the architecture of GCDWebServer.
*/
@interface GCDWebServer : NSObject
/**
* Sets the delegate for the server.
*/
@property(nonatomic, weak, nullable) id<GCDWebServerDelegate> delegate;
/**
* Returns YES if the server is currently running.
*/
@property(nonatomic, readonly, getter=isRunning) BOOL running;
/**
* Returns the port used by the server.
*
* @warning This property is only valid if the server is running.
*/
@property(nonatomic, readonly) NSUInteger port;
/**
* Returns the Bonjour name used by the server.
*
* @warning This property is only valid if the server is running and Bonjour
* registration has successfully completed, which can take up to a few seconds.
*/
@property(nonatomic, readonly, nullable) NSString* bonjourName;
/**
* Returns the Bonjour service type used by the server.
*
* @warning This property is only valid if the server is running and Bonjour
* registration has successfully completed, which can take up to a few seconds.
*/
@property(nonatomic, readonly, nullable) NSString* bonjourType;
/**
* This method is the designated initializer for the class.
*/
- (instancetype)init;
/**
* Adds to the server a handler that generates responses synchronously when handling incoming HTTP requests.
*
* Handlers are called in a LIFO queue, so if multiple handlers can potentially
* respond to a given request, the latest added one wins.
*
* @warning Addling handlers while the server is running is not allowed.
*/
- (void)addHandlerWithMatchBlock:(GCDWebServerMatchBlock)matchBlock processBlock:(GCDWebServerProcessBlock)processBlock;
/**
* Adds to the server a handler that generates responses asynchronously when handling incoming HTTP requests.
*
* Handlers are called in a LIFO queue, so if multiple handlers can potentially
* respond to a given request, the latest added one wins.
*
* @warning Addling handlers while the server is running is not allowed.
*/
- (void)addHandlerWithMatchBlock:(GCDWebServerMatchBlock)matchBlock asyncProcessBlock:(GCDWebServerAsyncProcessBlock)processBlock;
/**
* Removes all handlers previously added to the server.
*
* @warning Removing handlers while the server is running is not allowed.
*/
- (void)removeAllHandlers;
/**
* Starts the server with explicit options. This method is the designated way
* to start the server.
*
* Returns NO if the server failed to start and sets "error" argument if not NULL.
*/
- (BOOL)startWithOptions:(nullable NSDictionary*)options error:(NSError** _Nullable)error;
/**
* Stops the server and prevents it to accepts new HTTP requests.
*
* @warning Stopping the server does not abort GCDWebServerConnection instances
* currently handling already received HTTP requests. These connections will
* continue to execute normally until completion.
*/
- (void)stop;
@end
@interface GCDWebServer (Extensions)
/**
* Returns the server's URL.
*
* @warning This property is only valid if the server is running.
*/
@property(nonatomic, readonly, nullable) NSURL* serverURL;
/**
* Returns the server's Bonjour URL.
*
* @warning This property is only valid if the server is running and Bonjour
* registration has successfully completed, which can take up to a few seconds.
* Also be aware this property will not automatically update if the Bonjour hostname
* has been dynamically changed after the server started running (this should be rare).
*/
@property(nonatomic, readonly, nullable) NSURL* bonjourServerURL;
/**
* Returns the server's public URL.
*
* @warning This property is only valid if the server is running and NAT port
* mapping is active.
*/
@property(nonatomic, readonly, nullable) NSURL* publicServerURL;
/**
* Starts the server on port 8080 (OS X & iOS Simulator) or port 80 (iOS)
* using the default Bonjour name.
*
* Returns NO if the server failed to start.
*/
- (BOOL)start;
/**
* Starts the server on a given port and with a specific Bonjour name.
* Pass a nil Bonjour name to disable Bonjour entirely or an empty string to
* use the default name.
*
* Returns NO if the server failed to start.
*/
- (BOOL)startWithPort:(NSUInteger)port bonjourName:(nullable NSString*)name;
#if !TARGET_OS_IPHONE
/**
* Runs the server synchronously using -startWithPort:bonjourName: until a
* SIGINT signal is received i.e. Ctrl-C. This method is intended to be used
* by command line tools.
*
* Returns NO if the server failed to start.
*
* @warning This method must be used from the main thread only.
*/
- (BOOL)runWithPort:(NSUInteger)port bonjourName:(nullable NSString*)name;
/**
* Runs the server synchronously using -startWithOptions: until a SIGTERM or
* SIGINT signal is received i.e. Ctrl-C in Terminal. This method is intended to
* be used by command line tools.
*
* Returns NO if the server failed to start and sets "error" argument if not NULL.
*
* @warning This method must be used from the main thread only.
*/
- (BOOL)runWithOptions:(nullable NSDictionary*)options error:(NSError** _Nullable)error;
#endif
@end
@interface GCDWebServer (Handlers)
/**
* Adds a default handler to the server to handle all incoming HTTP requests
* with a given HTTP method and generate responses synchronously.
*/
- (void)addDefaultHandlerForMethod:(NSString*)method requestClass:(Class)aClass processBlock:(GCDWebServerProcessBlock)block;
/**
* Adds a default handler to the server to handle all incoming HTTP requests
* with a given HTTP method and generate responses asynchronously.
*/
- (void)addDefaultHandlerForMethod:(NSString*)method requestClass:(Class)aClass asyncProcessBlock:(GCDWebServerAsyncProcessBlock)block;
/**
* Adds a handler to the server to handle incoming HTTP requests with a given
* HTTP method and a specific case-insensitive path and generate responses
* synchronously.
*/
- (void)addHandlerForMethod:(NSString*)method path:(NSString*)path requestClass:(Class)aClass processBlock:(GCDWebServerProcessBlock)block;
/**
* Adds a handler to the server to handle incoming HTTP requests with a given
* HTTP method and a specific case-insensitive path and generate responses
* asynchronously.
*/
- (void)addHandlerForMethod:(NSString*)method path:(NSString*)path requestClass:(Class)aClass asyncProcessBlock:(GCDWebServerAsyncProcessBlock)block;
/**
* Adds a handler to the server to handle incoming HTTP requests with a given
* HTTP method and a path matching a case-insensitive regular expression and
* generate responses synchronously.
*/
- (void)addHandlerForMethod:(NSString*)method pathRegex:(NSString*)regex requestClass:(Class)aClass processBlock:(GCDWebServerProcessBlock)block;
/**
* Adds a handler to the server to handle incoming HTTP requests with a given
* HTTP method and a path matching a case-insensitive regular expression and
* generate responses asynchronously.
*/
- (void)addHandlerForMethod:(NSString*)method pathRegex:(NSString*)regex requestClass:(Class)aClass asyncProcessBlock:(GCDWebServerAsyncProcessBlock)block;
@end
@interface GCDWebServer (GETHandlers)
/**
* Adds a handler to the server to respond to incoming "GET" HTTP requests
* with a specific case-insensitive path with in-memory data.
*/
- (void)addGETHandlerForPath:(NSString*)path staticData:(NSData*)staticData contentType:(nullable NSString*)contentType cacheAge:(NSUInteger)cacheAge;
/**
* Adds a handler to the server to respond to incoming "GET" HTTP requests
* with a specific case-insensitive path with a file.
*/
- (void)addGETHandlerForPath:(NSString*)path filePath:(NSString*)filePath isAttachment:(BOOL)isAttachment cacheAge:(NSUInteger)cacheAge allowRangeRequests:(BOOL)allowRangeRequests;
/**
* Adds a handler to the server to respond to incoming "GET" HTTP requests
* with a case-insensitive path inside a base path with the corresponding file
* inside a local directory. If no local file matches the request path, a 401
* HTTP status code is returned to the client.
*
* The "indexFilename" argument allows to specify an "index" file name to use
* when the request path corresponds to a directory.
*/
- (void)addGETHandlerForBasePath:(NSString*)basePath directoryPath:(NSString*)directoryPath indexFilename:(nullable NSString*)indexFilename cacheAge:(NSUInteger)cacheAge allowRangeRequests:(BOOL)allowRangeRequests;
@end
/**
* GCDWebServer provides its own built-in logging facility which is used by
* default. It simply sends log messages to stderr assuming it is connected
* to a terminal type device.
*
* GCDWebServer is also compatible with a limited set of third-party logging
* facilities. If one of them is available at compile time, GCDWebServer will
* automatically use it in place of the built-in one.
*
* Currently supported third-party logging facilities are:
* - XLFacility (by the same author as GCDWebServer): https://github.com/swisspol/XLFacility
*
* For the built-in logging facility, the default logging level is INFO
* (or DEBUG if the preprocessor constant "DEBUG" evaluates to non-zero at
* compile time).
*
* It's possible to have GCDWebServer use a custom logging facility by defining
* the "__GCDWEBSERVER_LOGGING_HEADER__" preprocessor constant in Xcode build
* settings to the name of a custom header file (escaped like \"MyLogging.h\").
* This header file must define the following set of macros:
*
* GWS_LOG_DEBUG(...)
* GWS_LOG_VERBOSE(...)
* GWS_LOG_INFO(...)
* GWS_LOG_WARNING(...)
* GWS_LOG_ERROR(...)
*
* IMPORTANT: These macros must behave like NSLog(). Furthermore the GWS_LOG_DEBUG()
* macro should not do anything unless the preprocessor constant "DEBUG" evaluates
* to non-zero.
*
* The logging methods below send log messages to the same logging facility
* used by GCDWebServer. They can be used for consistency wherever you interact
* with GCDWebServer in your code (e.g. in the implementation of handlers).
*/
@interface GCDWebServer (Logging)
/**
* Sets the log level of the logging facility below which log messages are discarded.
*
* @warning The interpretation of the "level" argument depends on the logging
* facility used at compile time.
*
* If using the built-in logging facility, the log levels are as follow:
* DEBUG = 0
* VERBOSE = 1
* INFO = 2
* WARNING = 3
* ERROR = 4
*/
+ (void)setLogLevel:(int)level;
/**
* Logs a message to the logging facility at the VERBOSE level.
*/
- (void)logVerbose:(NSString*)format, ... NS_FORMAT_FUNCTION(1, 2);
/**
* Logs a message to the logging facility at the INFO level.
*/
- (void)logInfo:(NSString*)format, ... NS_FORMAT_FUNCTION(1, 2);
/**
* Logs a message to the logging facility at the WARNING level.
*/
- (void)logWarning:(NSString*)format, ... NS_FORMAT_FUNCTION(1, 2);
/**
* Logs a message to the logging facility at the ERROR level.
*/
- (void)logError:(NSString*)format, ... NS_FORMAT_FUNCTION(1, 2);
@end
#ifdef __GCDWEBSERVER_ENABLE_TESTING__
@interface GCDWebServer (Testing)
/**
* Activates recording of HTTP requests and responses which create files in the
* current directory containing the raw data for all requests and responses.
*
* @warning The current directory must not contain any prior recording files.
*/
@property(nonatomic, getter=isRecordingEnabled) BOOL recordingEnabled;
/**
* Runs tests by playing back pre-recorded HTTP requests in the given directory
* and comparing the generated responses with the pre-recorded ones.
*
* Returns the number of failed tests or -1 if server failed to start.
*/
- (NSInteger)runTestsWithOptions:(nullable NSDictionary*)options inDirectory:(NSString*)path;
@end
#endif
NS_ASSUME_NONNULL_END
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/*
Copyright (c) 2012-2015, Pierre-Olivier Latour
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* The name of Pierre-Olivier Latour may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL PIERRE-OLIVIER LATOUR BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#import "GCDWebServer.h"
NS_ASSUME_NONNULL_BEGIN
@class GCDWebServerHandler;
/**
* The GCDWebServerConnection class is instantiated by GCDWebServer to handle
* each new HTTP connection. Each instance stays alive until the connection is
* closed.
*
* You cannot use this class directly, but it is made public so you can
* subclass it to override some hooks. Use the GCDWebServerOption_ConnectionClass
* option for GCDWebServer to install your custom subclass.
*
* @warning The GCDWebServerConnection retains the GCDWebServer until the
* connection is closed.
*/
@interface GCDWebServerConnection : NSObject
/**
* Returns the GCDWebServer that owns the connection.
*/
@property(nonatomic, readonly) GCDWebServer* server;
/**
* Returns YES if the connection is using IPv6.
*/
@property(nonatomic, readonly, getter=isUsingIPv6) BOOL usingIPv6;
/**
* Returns the address of the local peer (i.e. server) of the connection
* as a raw "struct sockaddr".
*/
@property(nonatomic, readonly) NSData* localAddressData;
/**
* Returns the address of the local peer (i.e. server) of the connection
* as a string.
*/
@property(nonatomic, readonly) NSString* localAddressString;
/**
* Returns the address of the remote peer (i.e. client) of the connection
* as a raw "struct sockaddr".
*/
@property(nonatomic, readonly) NSData* remoteAddressData;
/**
* Returns the address of the remote peer (i.e. client) of the connection
* as a string.
*/
@property(nonatomic, readonly) NSString* remoteAddressString;
/**
* Returns the total number of bytes received from the remote peer (i.e. client)
* so far.
*/
@property(nonatomic, readonly) NSUInteger totalBytesRead;
/**
* Returns the total number of bytes sent to the remote peer (i.e. client) so far.
*/
@property(nonatomic, readonly) NSUInteger totalBytesWritten;
@end
/**
* Hooks to customize the behavior of GCDWebServer HTTP connections.
*
* @warning These methods can be called on any GCD thread.
* Be sure to also call "super" when overriding them.
*/
@interface GCDWebServerConnection (Subclassing)
/**
* This method is called when the connection is opened.
*
* Return NO to reject the connection e.g. after validating the local
* or remote address.
*/
- (BOOL)open;
/**
* This method is called whenever data has been received
* from the remote peer (i.e. client).
*
* @warning Do not attempt to modify this data.
*/
- (void)didReadBytes:(const void*)bytes length:(NSUInteger)length;
/**
* This method is called whenever data has been sent
* to the remote peer (i.e. client).
*
* @warning Do not attempt to modify this data.
*/
- (void)didWriteBytes:(const void*)bytes length:(NSUInteger)length;
/**
* This method is called after the HTTP headers have been received to
* allow replacing the request URL by another one.
*
* The default implementation returns the original URL.
*/
- (NSURL*)rewriteRequestURL:(NSURL*)url withMethod:(NSString*)method headers:(NSDictionary*)headers;
/**
* Assuming a valid HTTP request was received, this method is called before
* the request is processed.
*
* Return a non-nil GCDWebServerResponse to bypass the request processing entirely.
*
* The default implementation checks for HTTP authentication if applicable
* and returns a barebone 401 status code response if authentication failed.
*/
- (nullable GCDWebServerResponse*)preflightRequest:(GCDWebServerRequest*)request;
/**
* Assuming a valid HTTP request was received and -preflightRequest: returned nil,
* this method is called to process the request by executing the handler's
* process block.
*/
- (void)processRequest:(GCDWebServerRequest*)request completion:(GCDWebServerCompletionBlock)completion;
/**
* Assuming a valid HTTP request was received and either -preflightRequest:
* or -processRequest:completion: returned a non-nil GCDWebServerResponse,
* this method is called to override the response.
*
* You can either modify the current response and return it, or return a
* completely new one.
*
* The default implementation replaces any response matching the "ETag" or
* "Last-Modified-Date" header of the request by a barebone "Not-Modified" (304)
* one.
*/
- (GCDWebServerResponse*)overrideResponse:(GCDWebServerResponse*)response forRequest:(GCDWebServerRequest*)request;
/**
* This method is called if any error happens while validing or processing
* the request or if no GCDWebServerResponse was generated during processing.
*
* @warning If the request was invalid (e.g. the HTTP headers were malformed),
* the "request" argument will be nil.
*/
- (void)abortRequest:(nullable GCDWebServerRequest*)request withStatusCode:(NSInteger)statusCode;
/**
* Called when the connection is closed.
*/
- (void)close;
@end
NS_ASSUME_NONNULL_END
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/*
Copyright (c) 2012-2015, Pierre-Olivier Latour
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* The name of Pierre-Olivier Latour may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL PIERRE-OLIVIER LATOUR BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#if !__has_feature(objc_arc)
#error GCDWebServer requires ARC
#endif
#import <TargetConditionals.h>
#import <netdb.h>
#ifdef __GCDWEBSERVER_ENABLE_TESTING__
#import <libkern/OSAtomic.h>
#endif
#import "GCDWebServerPrivate.h"
#define kHeadersReadCapacity (1 * 1024)
#define kBodyReadCapacity (256 * 1024)
typedef void (^ReadDataCompletionBlock)(BOOL success);
typedef void (^ReadHeadersCompletionBlock)(NSData* extraData);
typedef void (^ReadBodyCompletionBlock)(BOOL success);
typedef void (^WriteDataCompletionBlock)(BOOL success);
typedef void (^WriteHeadersCompletionBlock)(BOOL success);
typedef void (^WriteBodyCompletionBlock)(BOOL success);
static NSData* _CRLFData = nil;
static NSData* _CRLFCRLFData = nil;
static NSData* _continueData = nil;
static NSData* _lastChunkData = nil;
static NSString* _digestAuthenticationNonce = nil;
#ifdef __GCDWEBSERVER_ENABLE_TESTING__
static int32_t _connectionCounter = 0;
#endif
NS_ASSUME_NONNULL_BEGIN
@interface GCDWebServerConnection (Read)
- (void)readData:(NSMutableData*)data withLength:(NSUInteger)length completionBlock:(ReadDataCompletionBlock)block;
- (void)readHeaders:(NSMutableData*)headersData withCompletionBlock:(ReadHeadersCompletionBlock)block;
- (void)readBodyWithRemainingLength:(NSUInteger)length completionBlock:(ReadBodyCompletionBlock)block;
- (void)readNextBodyChunk:(NSMutableData*)chunkData completionBlock:(ReadBodyCompletionBlock)block;
@end
@interface GCDWebServerConnection (Write)
- (void)writeData:(NSData*)data withCompletionBlock:(WriteDataCompletionBlock)block;
- (void)writeHeadersWithCompletionBlock:(WriteHeadersCompletionBlock)block;
- (void)writeBodyWithCompletionBlock:(WriteBodyCompletionBlock)block;
@end
NS_ASSUME_NONNULL_END
@implementation GCDWebServerConnection {
CFSocketNativeHandle _socket;
BOOL _virtualHEAD;
CFHTTPMessageRef _requestMessage;
GCDWebServerRequest* _request;
GCDWebServerHandler* _handler;
CFHTTPMessageRef _responseMessage;
GCDWebServerResponse* _response;
NSInteger _statusCode;
BOOL _opened;
#ifdef __GCDWEBSERVER_ENABLE_TESTING__
NSUInteger _connectionIndex;
NSString* _requestPath;
int _requestFD;
NSString* _responsePath;
int _responseFD;
#endif
}
+ (void)initialize {
if (_CRLFData == nil) {
_CRLFData = [[NSData alloc] initWithBytes:"\r\n" length:2];
GWS_DCHECK(_CRLFData);
}
if (_CRLFCRLFData == nil) {
_CRLFCRLFData = [[NSData alloc] initWithBytes:"\r\n\r\n" length:4];
GWS_DCHECK(_CRLFCRLFData);
}
if (_continueData == nil) {
CFHTTPMessageRef message = CFHTTPMessageCreateResponse(kCFAllocatorDefault, 100, NULL, kCFHTTPVersion1_1);
_continueData = CFBridgingRelease(CFHTTPMessageCopySerializedMessage(message));
CFRelease(message);
GWS_DCHECK(_continueData);
}
if (_lastChunkData == nil) {
_lastChunkData = [[NSData alloc] initWithBytes:"0\r\n\r\n" length:5];
}
if (_digestAuthenticationNonce == nil) {
CFUUIDRef uuid = CFUUIDCreate(kCFAllocatorDefault);
_digestAuthenticationNonce = GCDWebServerComputeMD5Digest(@"%@", CFBridgingRelease(CFUUIDCreateString(kCFAllocatorDefault, uuid)));
CFRelease(uuid);
}
}
- (BOOL)isUsingIPv6 {
const struct sockaddr* localSockAddr = _localAddressData.bytes;
return (localSockAddr->sa_family == AF_INET6);
}
- (void)_initializeResponseHeadersWithStatusCode:(NSInteger)statusCode {
_statusCode = statusCode;
_responseMessage = CFHTTPMessageCreateResponse(kCFAllocatorDefault, statusCode, NULL, kCFHTTPVersion1_1);
CFHTTPMessageSetHeaderFieldValue(_responseMessage, CFSTR("Connection"), CFSTR("Close"));
CFHTTPMessageSetHeaderFieldValue(_responseMessage, CFSTR("Server"), (__bridge CFStringRef)_server.serverName);
CFHTTPMessageSetHeaderFieldValue(_responseMessage, CFSTR("Date"), (__bridge CFStringRef)GCDWebServerFormatRFC822([NSDate date]));
}
- (void)_startProcessingRequest {
GWS_DCHECK(_responseMessage == NULL);
GCDWebServerResponse* preflightResponse = [self preflightRequest:_request];
if (preflightResponse) {
[self _finishProcessingRequest:preflightResponse];
} else {
[self processRequest:_request
completion:^(GCDWebServerResponse* processResponse) {
[self _finishProcessingRequest:processResponse];
}];
}
}
// http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
- (void)_finishProcessingRequest:(GCDWebServerResponse*)response {
GWS_DCHECK(_responseMessage == NULL);
BOOL hasBody = NO;
if (response) {
response = [self overrideResponse:response forRequest:_request];
}
if (response) {
if ([response hasBody]) {
[response prepareForReading];
hasBody = !_virtualHEAD;
}
NSError* error = nil;
if (hasBody && ![response performOpen:&error]) {
GWS_LOG_ERROR(@"Failed opening response body for socket %i: %@", _socket, error);
} else {
_response = response;
}
}
if (_response) {
[self _initializeResponseHeadersWithStatusCode:_response.statusCode];
if (_response.lastModifiedDate) {
CFHTTPMessageSetHeaderFieldValue(_responseMessage, CFSTR("Last-Modified"), (__bridge CFStringRef)GCDWebServerFormatRFC822((NSDate*)_response.lastModifiedDate));
}
if (_response.eTag) {
CFHTTPMessageSetHeaderFieldValue(_responseMessage, CFSTR("ETag"), (__bridge CFStringRef)_response.eTag);
}
if ((_response.statusCode >= 200) && (_response.statusCode < 300)) {
if (_response.cacheControlMaxAge > 0) {
CFHTTPMessageSetHeaderFieldValue(_responseMessage, CFSTR("Cache-Control"), (__bridge CFStringRef)[NSString stringWithFormat:@"max-age=%i, public", (int)_response.cacheControlMaxAge]);
} else {
CFHTTPMessageSetHeaderFieldValue(_responseMessage, CFSTR("Cache-Control"), CFSTR("no-cache"));
}
}
if (_response.contentType != nil) {
CFHTTPMessageSetHeaderFieldValue(_responseMessage, CFSTR("Content-Type"), (__bridge CFStringRef)GCDWebServerNormalizeHeaderValue(_response.contentType));
}
if (_response.contentLength != NSUIntegerMax) {
CFHTTPMessageSetHeaderFieldValue(_responseMessage, CFSTR("Content-Length"), (__bridge CFStringRef)[NSString stringWithFormat:@"%lu", (unsigned long)_response.contentLength]);
}
if (_response.usesChunkedTransferEncoding) {
CFHTTPMessageSetHeaderFieldValue(_responseMessage, CFSTR("Transfer-Encoding"), CFSTR("chunked"));
}
[_response.additionalHeaders enumerateKeysAndObjectsUsingBlock:^(id key, id obj, BOOL* stop) {
CFHTTPMessageSetHeaderFieldValue(_responseMessage, (__bridge CFStringRef)key, (__bridge CFStringRef)obj);
}];
[self writeHeadersWithCompletionBlock:^(BOOL success) {
if (success) {
if (hasBody) {
[self writeBodyWithCompletionBlock:^(BOOL successInner) {
[_response performClose]; // TODO: There's nothing we can do on failure as headers have already been sent
}];
}
} else if (hasBody) {
[_response performClose];
}
}];
} else {
[self abortRequest:_request withStatusCode:kGCDWebServerHTTPStatusCode_InternalServerError];
}
}
- (void)_readBodyWithLength:(NSUInteger)length initialData:(NSData*)initialData {
NSError* error = nil;
if (![_request performOpen:&error]) {
GWS_LOG_ERROR(@"Failed opening request body for socket %i: %@", _socket, error);
[self abortRequest:_request withStatusCode:kGCDWebServerHTTPStatusCode_InternalServerError];
return;
}
if (initialData.length) {
if (![_request performWriteData:initialData error:&error]) {
GWS_LOG_ERROR(@"Failed writing request body on socket %i: %@", _socket, error);
if (![_request performClose:&error]) {
GWS_LOG_ERROR(@"Failed closing request body for socket %i: %@", _socket, error);
}
[self abortRequest:_request withStatusCode:kGCDWebServerHTTPStatusCode_InternalServerError];
return;
}
length -= initialData.length;
}
if (length) {
[self readBodyWithRemainingLength:length
completionBlock:^(BOOL success) {
NSError* localError = nil;
if ([_request performClose:&localError]) {
[self _startProcessingRequest];
} else {
GWS_LOG_ERROR(@"Failed closing request body for socket %i: %@", _socket, error);
[self abortRequest:_request withStatusCode:kGCDWebServerHTTPStatusCode_InternalServerError];
}
}];
} else {
if ([_request performClose:&error]) {
[self _startProcessingRequest];
} else {
GWS_LOG_ERROR(@"Failed closing request body for socket %i: %@", _socket, error);
[self abortRequest:_request withStatusCode:kGCDWebServerHTTPStatusCode_InternalServerError];
}
}
}
- (void)_readChunkedBodyWithInitialData:(NSData*)initialData {
NSError* error = nil;
if (![_request performOpen:&error]) {
GWS_LOG_ERROR(@"Failed opening request body for socket %i: %@", _socket, error);
[self abortRequest:_request withStatusCode:kGCDWebServerHTTPStatusCode_InternalServerError];
return;
}
NSMutableData* chunkData = [[NSMutableData alloc] initWithData:initialData];
[self readNextBodyChunk:chunkData
completionBlock:^(BOOL success) {
NSError* localError = nil;
if ([_request performClose:&localError]) {
[self _startProcessingRequest];
} else {
GWS_LOG_ERROR(@"Failed closing request body for socket %i: %@", _socket, error);
[self abortRequest:_request withStatusCode:kGCDWebServerHTTPStatusCode_InternalServerError];
}
}];
}
- (void)_readRequestHeaders {
_requestMessage = CFHTTPMessageCreateEmpty(kCFAllocatorDefault, true);
NSMutableData* headersData = [[NSMutableData alloc] initWithCapacity:kHeadersReadCapacity];
[self readHeaders:headersData
withCompletionBlock:^(NSData* extraData) {
if (extraData) {
NSString* requestMethod = CFBridgingRelease(CFHTTPMessageCopyRequestMethod(_requestMessage)); // Method verbs are case-sensitive and uppercase
if (_server.shouldAutomaticallyMapHEADToGET && [requestMethod isEqualToString:@"HEAD"]) {
requestMethod = @"GET";
_virtualHEAD = YES;
}
NSDictionary* requestHeaders = CFBridgingRelease(CFHTTPMessageCopyAllHeaderFields(_requestMessage)); // Header names are case-insensitive but CFHTTPMessageCopyAllHeaderFields() will standardize the common ones
NSURL* requestURL = CFBridgingRelease(CFHTTPMessageCopyRequestURL(_requestMessage));
if (requestURL) {
requestURL = [self rewriteRequestURL:requestURL withMethod:requestMethod headers:requestHeaders];
GWS_DCHECK(requestURL);
}
NSString* urlPath = requestURL ? CFBridgingRelease(CFURLCopyPath((CFURLRef)requestURL)) : nil; // Don't use -[NSURL path] which strips the ending slash
if (urlPath == nil) {
urlPath = @"/"; // CFURLCopyPath() returns NULL for a relative URL with path "//" contrary to -[NSURL path] which returns "/"
}
NSString* requestPath = urlPath ? GCDWebServerUnescapeURLString(urlPath) : nil;
NSString* queryString = requestURL ? CFBridgingRelease(CFURLCopyQueryString((CFURLRef)requestURL, NULL)) : nil; // Don't use -[NSURL query] to make sure query is not unescaped;
NSDictionary* requestQuery = queryString ? GCDWebServerParseURLEncodedForm(queryString) : @{};
if (requestMethod && requestURL && requestHeaders && requestPath && requestQuery) {
for (_handler in _server.handlers) {
_request = _handler.matchBlock(requestMethod, requestURL, requestHeaders, requestPath, requestQuery);
if (_request) {
break;
}
}
if (_request) {
_request.localAddressData = self.localAddressData;
_request.remoteAddressData = self.remoteAddressData;
if ([_request hasBody]) {
[_request prepareForWriting];
if (_request.usesChunkedTransferEncoding || (extraData.length <= _request.contentLength)) {
NSString* expectHeader = [requestHeaders objectForKey:@"Expect"];
if (expectHeader) {
if ([expectHeader caseInsensitiveCompare:@"100-continue"] == NSOrderedSame) { // TODO: Actually validate request before continuing
[self writeData:_continueData
withCompletionBlock:^(BOOL success) {
if (success) {
if (_request.usesChunkedTransferEncoding) {
[self _readChunkedBodyWithInitialData:extraData];
} else {
[self _readBodyWithLength:_request.contentLength initialData:extraData];
}
}
}];
} else {
GWS_LOG_ERROR(@"Unsupported 'Expect' / 'Content-Length' header combination on socket %i", _socket);
[self abortRequest:_request withStatusCode:kGCDWebServerHTTPStatusCode_ExpectationFailed];
}
} else {
if (_request.usesChunkedTransferEncoding) {
[self _readChunkedBodyWithInitialData:extraData];
} else {
[self _readBodyWithLength:_request.contentLength initialData:extraData];
}
}
} else {
GWS_LOG_ERROR(@"Unexpected 'Content-Length' header value on socket %i", _socket);
[self abortRequest:_request withStatusCode:kGCDWebServerHTTPStatusCode_BadRequest];
}
} else {
[self _startProcessingRequest];
}
} else {
_request = [[GCDWebServerRequest alloc] initWithMethod:requestMethod url:requestURL headers:requestHeaders path:requestPath query:requestQuery];
GWS_DCHECK(_request);
[self abortRequest:_request withStatusCode:kGCDWebServerHTTPStatusCode_NotImplemented];
}
} else {
[self abortRequest:nil withStatusCode:kGCDWebServerHTTPStatusCode_InternalServerError];
GWS_DNOT_REACHED();
}
} else {
[self abortRequest:nil withStatusCode:kGCDWebServerHTTPStatusCode_InternalServerError];
}
}];
}
- (instancetype)initWithServer:(GCDWebServer*)server localAddress:(NSData*)localAddress remoteAddress:(NSData*)remoteAddress socket:(CFSocketNativeHandle)socket {
if ((self = [super init])) {
_server = server;
_localAddressData = localAddress;
_remoteAddressData = remoteAddress;
_socket = socket;
GWS_LOG_DEBUG(@"Did open connection on socket %i", _socket);
[_server willStartConnection:self];
if (![self open]) {
close(_socket);
return nil;
}
_opened = YES;
[self _readRequestHeaders];
}
return self;
}
- (NSString*)localAddressString {
return GCDWebServerStringFromSockAddr(_localAddressData.bytes, YES);
}
- (NSString*)remoteAddressString {
return GCDWebServerStringFromSockAddr(_remoteAddressData.bytes, YES);
}
- (void)dealloc {
int result = close(_socket);
if (result != 0) {
GWS_LOG_ERROR(@"Failed closing socket %i for connection: %s (%i)", _socket, strerror(errno), errno);
} else {
GWS_LOG_DEBUG(@"Did close connection on socket %i", _socket);
}
if (_opened) {
[self close];
}
[_server didEndConnection:self];
if (_requestMessage) {
CFRelease(_requestMessage);
}
if (_responseMessage) {
CFRelease(_responseMessage);
}
}
@end
@implementation GCDWebServerConnection (Read)
- (void)readData:(NSMutableData*)data withLength:(NSUInteger)length completionBlock:(ReadDataCompletionBlock)block {
dispatch_read(_socket, length, dispatch_get_global_queue(_server.dispatchQueuePriority, 0), ^(dispatch_data_t buffer, int error) {
@autoreleasepool {
if (error == 0) {
size_t size = dispatch_data_get_size(buffer);
if (size > 0) {
NSUInteger originalLength = data.length;
dispatch_data_apply(buffer, ^bool(dispatch_data_t region, size_t chunkOffset, const void* chunkBytes, size_t chunkSize) {
[data appendBytes:chunkBytes length:chunkSize];
return true;
});
[self didReadBytes:((char*)data.bytes + originalLength) length:(data.length - originalLength)];
block(YES);
} else {
if (_totalBytesRead > 0) {
GWS_LOG_ERROR(@"No more data available on socket %i", _socket);
} else {
GWS_LOG_WARNING(@"No data received from socket %i", _socket);
}
block(NO);
}
} else {
GWS_LOG_ERROR(@"Error while reading from socket %i: %s (%i)", _socket, strerror(error), error);
block(NO);
}
}
});
}
- (void)readHeaders:(NSMutableData*)headersData withCompletionBlock:(ReadHeadersCompletionBlock)block {
GWS_DCHECK(_requestMessage);
[self readData:headersData
withLength:NSUIntegerMax
completionBlock:^(BOOL success) {
if (success) {
NSRange range = [headersData rangeOfData:_CRLFCRLFData options:0 range:NSMakeRange(0, headersData.length)];
if (range.location == NSNotFound) {
[self readHeaders:headersData withCompletionBlock:block];
} else {
NSUInteger length = range.location + range.length;
if (CFHTTPMessageAppendBytes(_requestMessage, headersData.bytes, length)) {
if (CFHTTPMessageIsHeaderComplete(_requestMessage)) {
block([headersData subdataWithRange:NSMakeRange(length, headersData.length - length)]);
} else {
GWS_LOG_ERROR(@"Failed parsing request headers from socket %i", _socket);
block(nil);
}
} else {
GWS_LOG_ERROR(@"Failed appending request headers data from socket %i", _socket);
block(nil);
}
}
} else {
block(nil);
}
}];
}
- (void)readBodyWithRemainingLength:(NSUInteger)length completionBlock:(ReadBodyCompletionBlock)block {
GWS_DCHECK([_request hasBody] && ![_request usesChunkedTransferEncoding]);
NSMutableData* bodyData = [[NSMutableData alloc] initWithCapacity:kBodyReadCapacity];
[self readData:bodyData
withLength:length
completionBlock:^(BOOL success) {
if (success) {
if (bodyData.length <= length) {
NSError* error = nil;
if ([_request performWriteData:bodyData error:&error]) {
NSUInteger remainingLength = length - bodyData.length;
if (remainingLength) {
[self readBodyWithRemainingLength:remainingLength completionBlock:block];
} else {
block(YES);
}
} else {
GWS_LOG_ERROR(@"Failed writing request body on socket %i: %@", _socket, error);
block(NO);
}
} else {
GWS_LOG_ERROR(@"Unexpected extra content reading request body on socket %i", _socket);
block(NO);
GWS_DNOT_REACHED();
}
} else {
block(NO);
}
}];
}
static inline NSUInteger _ScanHexNumber(const void* bytes, NSUInteger size) {
char buffer[size + 1];
bcopy(bytes, buffer, size);
buffer[size] = 0;
char* end = NULL;
long result = strtol(buffer, &end, 16);
return ((end != NULL) && (*end == 0) && (result >= 0) ? result : NSNotFound);
}
- (void)readNextBodyChunk:(NSMutableData*)chunkData completionBlock:(ReadBodyCompletionBlock)block {
GWS_DCHECK([_request hasBody] && [_request usesChunkedTransferEncoding]);
while (1) {
NSRange range = [chunkData rangeOfData:_CRLFData options:0 range:NSMakeRange(0, chunkData.length)];
if (range.location == NSNotFound) {
break;
}
NSRange extensionRange = [chunkData rangeOfData:[NSData dataWithBytes:";" length:1] options:0 range:NSMakeRange(0, range.location)]; // Ignore chunk extensions
NSUInteger length = _ScanHexNumber((char*)chunkData.bytes, extensionRange.location != NSNotFound ? extensionRange.location : range.location);
if (length != NSNotFound) {
if (length) {
if (chunkData.length < range.location + range.length + length + 2) {
break;
}
const char* ptr = (char*)chunkData.bytes + range.location + range.length + length;
if ((*ptr == '\r') && (*(ptr + 1) == '\n')) {
NSError* error = nil;
if ([_request performWriteData:[chunkData subdataWithRange:NSMakeRange(range.location + range.length, length)] error:&error]) {
[chunkData replaceBytesInRange:NSMakeRange(0, range.location + range.length + length + 2) withBytes:NULL length:0];
} else {
GWS_LOG_ERROR(@"Failed writing request body on socket %i: %@", _socket, error);
block(NO);
return;
}
} else {
GWS_LOG_ERROR(@"Missing terminating CRLF sequence for chunk reading request body on socket %i", _socket);
block(NO);
return;
}
} else {
NSRange trailerRange = [chunkData rangeOfData:_CRLFCRLFData options:0 range:NSMakeRange(range.location, chunkData.length - range.location)]; // Ignore trailers
if (trailerRange.location != NSNotFound) {
block(YES);
return;
}
}
} else {
GWS_LOG_ERROR(@"Invalid chunk length reading request body on socket %i", _socket);
block(NO);
return;
}
}
[self readData:chunkData
withLength:NSUIntegerMax
completionBlock:^(BOOL success) {
if (success) {
[self readNextBodyChunk:chunkData completionBlock:block];
} else {
block(NO);
}
}];
}
@end
@implementation GCDWebServerConnection (Write)
- (void)writeData:(NSData*)data withCompletionBlock:(WriteDataCompletionBlock)block {
dispatch_data_t buffer = dispatch_data_create(data.bytes, data.length, dispatch_get_global_queue(_server.dispatchQueuePriority, 0), ^{
[data self]; // Keeps ARC from releasing data too early
});
dispatch_write(_socket, buffer, dispatch_get_global_queue(_server.dispatchQueuePriority, 0), ^(dispatch_data_t remainingData, int error) {
@autoreleasepool {
if (error == 0) {
GWS_DCHECK(remainingData == NULL);
[self didWriteBytes:data.bytes length:data.length];
block(YES);
} else {
GWS_LOG_ERROR(@"Error while writing to socket %i: %s (%i)", _socket, strerror(error), error);
block(NO);
}
}
});
#if !OS_OBJECT_USE_OBJC_RETAIN_RELEASE
dispatch_release(buffer);
#endif
}
- (void)writeHeadersWithCompletionBlock:(WriteHeadersCompletionBlock)block {
GWS_DCHECK(_responseMessage);
CFDataRef data = CFHTTPMessageCopySerializedMessage(_responseMessage);
[self writeData:(__bridge NSData*)data withCompletionBlock:block];
CFRelease(data);
}
- (void)writeBodyWithCompletionBlock:(WriteBodyCompletionBlock)block {
GWS_DCHECK([_response hasBody]);
[_response performReadDataWithCompletion:^(NSData* data, NSError* error) {
if (data) {
if (data.length) {
if (_response.usesChunkedTransferEncoding) {
const char* hexString = [[NSString stringWithFormat:@"%lx", (unsigned long)data.length] UTF8String];
size_t hexLength = strlen(hexString);
NSData* chunk = [NSMutableData dataWithLength:(hexLength + 2 + data.length + 2)];
if (chunk == nil) {
GWS_LOG_ERROR(@"Failed allocating memory for response body chunk for socket %i: %@", _socket, error);
block(NO);
return;
}
char* ptr = (char*)[(NSMutableData*)chunk mutableBytes];
bcopy(hexString, ptr, hexLength);
ptr += hexLength;
*ptr++ = '\r';
*ptr++ = '\n';
bcopy(data.bytes, ptr, data.length);
ptr += data.length;
*ptr++ = '\r';
*ptr = '\n';
data = chunk;
}
[self writeData:data
withCompletionBlock:^(BOOL success) {
if (success) {
[self writeBodyWithCompletionBlock:block];
} else {
block(NO);
}
}];
} else {
if (_response.usesChunkedTransferEncoding) {
[self writeData:_lastChunkData
withCompletionBlock:^(BOOL success) {
block(success);
}];
} else {
block(YES);
}
}
} else {
GWS_LOG_ERROR(@"Failed reading response body for socket %i: %@", _socket, error);
block(NO);
}
}];
}
@end
@implementation GCDWebServerConnection (Subclassing)
- (BOOL)open {
#ifdef __GCDWEBSERVER_ENABLE_TESTING__
if (_server.recordingEnabled) {
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
_connectionIndex = OSAtomicIncrement32(&_connectionCounter);
#pragma clang diagnostic pop
_requestPath = [NSTemporaryDirectory() stringByAppendingPathComponent:[[NSProcessInfo processInfo] globallyUniqueString]];
_requestFD = open([_requestPath fileSystemRepresentation], O_CREAT | O_TRUNC | O_WRONLY, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
GWS_DCHECK(_requestFD > 0);
_responsePath = [NSTemporaryDirectory() stringByAppendingPathComponent:[[NSProcessInfo processInfo] globallyUniqueString]];
_responseFD = open([_responsePath fileSystemRepresentation], O_CREAT | O_TRUNC | O_WRONLY, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
GWS_DCHECK(_responseFD > 0);
}
#endif
return YES;
}
- (void)didReadBytes:(const void*)bytes length:(NSUInteger)length {
GWS_LOG_DEBUG(@"Connection received %lu bytes on socket %i", (unsigned long)length, _socket);
_totalBytesRead += length;
#ifdef __GCDWEBSERVER_ENABLE_TESTING__
if ((_requestFD > 0) && (write(_requestFD, bytes, length) != (ssize_t)length)) {
GWS_LOG_ERROR(@"Failed recording request data: %s (%i)", strerror(errno), errno);
close(_requestFD);
_requestFD = 0;
}
#endif
}
- (void)didWriteBytes:(const void*)bytes length:(NSUInteger)length {
GWS_LOG_DEBUG(@"Connection sent %lu bytes on socket %i", (unsigned long)length, _socket);
_totalBytesWritten += length;
#ifdef __GCDWEBSERVER_ENABLE_TESTING__
if ((_responseFD > 0) && (write(_responseFD, bytes, length) != (ssize_t)length)) {
GWS_LOG_ERROR(@"Failed recording response data: %s (%i)", strerror(errno), errno);
close(_responseFD);
_responseFD = 0;
}
#endif
}
- (NSURL*)rewriteRequestURL:(NSURL*)url withMethod:(NSString*)method headers:(NSDictionary*)headers {
return url;
}
// https://tools.ietf.org/html/rfc2617
- (GCDWebServerResponse*)preflightRequest:(GCDWebServerRequest*)request {
GWS_LOG_DEBUG(@"Connection on socket %i preflighting request \"%@ %@\" with %lu bytes body", _socket, _virtualHEAD ? @"HEAD" : _request.method, _request.path, (unsigned long)_totalBytesRead);
GCDWebServerResponse* response = nil;
if (_server.authenticationBasicAccounts) {
__block BOOL authenticated = NO;
NSString* authorizationHeader = [request.headers objectForKey:@"Authorization"];
if ([authorizationHeader hasPrefix:@"Basic "]) {
NSString* basicAccount = [authorizationHeader substringFromIndex:6];
[_server.authenticationBasicAccounts enumerateKeysAndObjectsUsingBlock:^(NSString* username, NSString* digest, BOOL* stop) {
if ([basicAccount isEqualToString:digest]) {
authenticated = YES;
*stop = YES;
}
}];
}
if (!authenticated) {
response = [GCDWebServerResponse responseWithStatusCode:kGCDWebServerHTTPStatusCode_Unauthorized];
[response setValue:[NSString stringWithFormat:@"Basic realm=\"%@\"", _server.authenticationRealm] forAdditionalHeader:@"WWW-Authenticate"];
}
} else if (_server.authenticationDigestAccounts) {
BOOL authenticated = NO;
BOOL isStaled = NO;
NSString* authorizationHeader = [request.headers objectForKey:@"Authorization"];
if ([authorizationHeader hasPrefix:@"Digest "]) {
NSString* realm = GCDWebServerExtractHeaderValueParameter(authorizationHeader, @"realm");
if (realm && [_server.authenticationRealm isEqualToString:realm]) {
NSString* nonce = GCDWebServerExtractHeaderValueParameter(authorizationHeader, @"nonce");
if ([nonce isEqualToString:_digestAuthenticationNonce]) {
NSString* username = GCDWebServerExtractHeaderValueParameter(authorizationHeader, @"username");
NSString* uri = GCDWebServerExtractHeaderValueParameter(authorizationHeader, @"uri");
NSString* actualResponse = GCDWebServerExtractHeaderValueParameter(authorizationHeader, @"response");
NSString* ha1 = [_server.authenticationDigestAccounts objectForKey:username];
NSString* ha2 = GCDWebServerComputeMD5Digest(@"%@:%@", request.method, uri); // We cannot use "request.path" as the query string is required
NSString* expectedResponse = GCDWebServerComputeMD5Digest(@"%@:%@:%@", ha1, _digestAuthenticationNonce, ha2);
if ([actualResponse isEqualToString:expectedResponse]) {
authenticated = YES;
}
} else if (nonce.length) {
isStaled = YES;
}
}
}
if (!authenticated) {
response = [GCDWebServerResponse responseWithStatusCode:kGCDWebServerHTTPStatusCode_Unauthorized];
[response setValue:[NSString stringWithFormat:@"Digest realm=\"%@\", nonce=\"%@\"%@", _server.authenticationRealm, _digestAuthenticationNonce, isStaled ? @", stale=TRUE" : @""] forAdditionalHeader:@"WWW-Authenticate"]; // TODO: Support Quality of Protection ("qop")
}
}
return response;
}
- (void)processRequest:(GCDWebServerRequest*)request completion:(GCDWebServerCompletionBlock)completion {
GWS_LOG_DEBUG(@"Connection on socket %i processing request \"%@ %@\" with %lu bytes body", _socket, _virtualHEAD ? @"HEAD" : _request.method, _request.path, (unsigned long)_totalBytesRead);
_handler.asyncProcessBlock(request, [completion copy]);
}
// http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.25
// http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.26
static inline BOOL _CompareResources(NSString* responseETag, NSString* requestETag, NSDate* responseLastModified, NSDate* requestLastModified) {
if (requestLastModified && responseLastModified) {
if ([responseLastModified compare:requestLastModified] != NSOrderedDescending) {
return YES;
}
}
if (requestETag && responseETag) { // Per the specs "If-None-Match" must be checked after "If-Modified-Since"
if ([requestETag isEqualToString:@"*"]) {
return YES;
}
if ([responseETag isEqualToString:requestETag]) {
return YES;
}
}
return NO;
}
- (GCDWebServerResponse*)overrideResponse:(GCDWebServerResponse*)response forRequest:(GCDWebServerRequest*)request {
if ((response.statusCode >= 200) && (response.statusCode < 300) && _CompareResources(response.eTag, request.ifNoneMatch, response.lastModifiedDate, request.ifModifiedSince)) {
NSInteger code = [request.method isEqualToString:@"HEAD"] || [request.method isEqualToString:@"GET"] ? kGCDWebServerHTTPStatusCode_NotModified : kGCDWebServerHTTPStatusCode_PreconditionFailed;
GCDWebServerResponse* newResponse = [GCDWebServerResponse responseWithStatusCode:code];
newResponse.cacheControlMaxAge = response.cacheControlMaxAge;
newResponse.lastModifiedDate = response.lastModifiedDate;
newResponse.eTag = response.eTag;
GWS_DCHECK(newResponse);
return newResponse;
}
return response;
}
- (void)abortRequest:(GCDWebServerRequest*)request withStatusCode:(NSInteger)statusCode {
GWS_DCHECK(_responseMessage == NULL);
GWS_DCHECK((statusCode >= 400) && (statusCode < 600));
[self _initializeResponseHeadersWithStatusCode:statusCode];
[self writeHeadersWithCompletionBlock:^(BOOL success) {
; // Nothing more to do
}];
GWS_LOG_DEBUG(@"Connection aborted with status code %i on socket %i", (int)statusCode, _socket);
}
- (void)close {
#ifdef __GCDWEBSERVER_ENABLE_TESTING__
if (_requestPath) {
BOOL success = NO;
NSError* error = nil;
if (_requestFD > 0) {
close(_requestFD);
NSString* name = [NSString stringWithFormat:@"%03lu-%@.request", (unsigned long)_connectionIndex, _virtualHEAD ? @"HEAD" : _request.method];
success = [[NSFileManager defaultManager] moveItemAtPath:_requestPath toPath:[[[NSFileManager defaultManager] currentDirectoryPath] stringByAppendingPathComponent:name] error:&error];
}
if (!success) {
GWS_LOG_ERROR(@"Failed saving recorded request: %@", error);
GWS_DNOT_REACHED();
}
unlink([_requestPath fileSystemRepresentation]);
}
if (_responsePath) {
BOOL success = NO;
NSError* error = nil;
if (_responseFD > 0) {
close(_responseFD);
NSString* name = [NSString stringWithFormat:@"%03lu-%i.response", (unsigned long)_connectionIndex, (int)_statusCode];
success = [[NSFileManager defaultManager] moveItemAtPath:_responsePath toPath:[[[NSFileManager defaultManager] currentDirectoryPath] stringByAppendingPathComponent:name] error:&error];
}
if (!success) {
GWS_LOG_ERROR(@"Failed saving recorded response: %@", error);
GWS_DNOT_REACHED();
}
unlink([_responsePath fileSystemRepresentation]);
}
#endif
if (_request) {
GWS_LOG_VERBOSE(@"[%@] %@ %i \"%@ %@\" (%lu | %lu)", self.localAddressString, self.remoteAddressString, (int)_statusCode, _virtualHEAD ? @"HEAD" : _request.method, _request.path, (unsigned long)_totalBytesRead, (unsigned long)_totalBytesWritten);
} else {
GWS_LOG_VERBOSE(@"[%@] %@ %i \"(invalid request)\" (%lu | %lu)", self.localAddressString, self.remoteAddressString, (int)_statusCode, (unsigned long)_totalBytesRead, (unsigned long)_totalBytesWritten);
}
}
@end
@@ -0,0 +1,109 @@
/*
Copyright (c) 2012-2015, Pierre-Olivier Latour
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* The name of Pierre-Olivier Latour may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL PIERRE-OLIVIER LATOUR BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#import <Foundation/Foundation.h>
NS_ASSUME_NONNULL_BEGIN
#ifdef __cplusplus
extern "C" {
#endif
/**
* Converts a file extension to the corresponding MIME type.
* If there is no match, "application/octet-stream" is returned.
*
* Overrides allow to customize the built-in mapping from extensions to MIME
* types. Keys of the dictionary must be lowercased file extensions without
* the period, and the values must be the corresponding MIME types.
*/
NSString* GCDWebServerGetMimeTypeForExtension(NSString* extension, NSDictionary* _Nullable overrides);
/**
* Add percent-escapes to a string so it can be used in a URL.
* The legal characters ":@/?&=+" are also escaped to ensure compatibility
* with URL encoded forms and URL queries.
*/
NSString* _Nullable GCDWebServerEscapeURLString(NSString* string);
/**
* Unescapes a URL percent-encoded string.
*/
NSString* _Nullable GCDWebServerUnescapeURLString(NSString* string);
/**
* Extracts the unescaped names and values from an
* "application/x-www-form-urlencoded" form.
* http://www.w3.org/TR/html401/interact/forms.html#h-17.13.4.1
*/
NSDictionary* GCDWebServerParseURLEncodedForm(NSString* form);
/**
* On OS X, returns the IPv4 or IPv6 address as a string of the primary
* connected service or nil if not available.
*
* On iOS, returns the IPv4 or IPv6 address as a string of the WiFi
* interface if connected or nil otherwise.
*/
NSString* _Nullable GCDWebServerGetPrimaryIPAddress(BOOL useIPv6);
/**
* Converts a date into a string using RFC822 formatting.
* https://tools.ietf.org/html/rfc822#section-5
* https://tools.ietf.org/html/rfc1123#section-5.2.14
*/
NSString* GCDWebServerFormatRFC822(NSDate* date);
/**
* Converts a RFC822 formatted string into a date.
* https://tools.ietf.org/html/rfc822#section-5
* https://tools.ietf.org/html/rfc1123#section-5.2.14
*
* @warning Timezones other than GMT are not supported by this function.
*/
NSDate* _Nullable GCDWebServerParseRFC822(NSString* string);
/**
* Converts a date into a string using IOS 8601 formatting.
* http://tools.ietf.org/html/rfc3339#section-5.6
*/
NSString* GCDWebServerFormatISO8601(NSDate* date);
/**
* Converts a ISO 8601 formatted string into a date.
* http://tools.ietf.org/html/rfc3339#section-5.6
*
* @warning Only "calendar" variant is supported at this time and timezones
* other than GMT are not supported either.
*/
NSDate* _Nullable GCDWebServerParseISO8601(NSString* string);
#ifdef __cplusplus
}
#endif
NS_ASSUME_NONNULL_END
@@ -0,0 +1,316 @@
/*
Copyright (c) 2012-2015, Pierre-Olivier Latour
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* The name of Pierre-Olivier Latour may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL PIERRE-OLIVIER LATOUR BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#if !__has_feature(objc_arc)
#error GCDWebServer requires ARC
#endif
#import <TargetConditionals.h>
#if TARGET_OS_IPHONE
#import <MobileCoreServices/MobileCoreServices.h>
#else
#import <SystemConfiguration/SystemConfiguration.h>
#endif
#import <CommonCrypto/CommonDigest.h>
#import <ifaddrs.h>
#import <net/if.h>
#import <netdb.h>
#import "GCDWebServerPrivate.h"
static NSDateFormatter* _dateFormatterRFC822 = nil;
static NSDateFormatter* _dateFormatterISO8601 = nil;
static dispatch_queue_t _dateFormatterQueue = NULL;
// TODO: Handle RFC 850 and ANSI C's asctime() format
void GCDWebServerInitializeFunctions() {
GWS_DCHECK([NSThread isMainThread]); // NSDateFormatter should be initialized on main thread
if (_dateFormatterRFC822 == nil) {
_dateFormatterRFC822 = [[NSDateFormatter alloc] init];
_dateFormatterRFC822.timeZone = [NSTimeZone timeZoneWithAbbreviation:@"GMT"];
_dateFormatterRFC822.dateFormat = @"EEE',' dd MMM yyyy HH':'mm':'ss 'GMT'";
_dateFormatterRFC822.locale = [[NSLocale alloc] initWithLocaleIdentifier:@"en_US"];
GWS_DCHECK(_dateFormatterRFC822);
}
if (_dateFormatterISO8601 == nil) {
_dateFormatterISO8601 = [[NSDateFormatter alloc] init];
_dateFormatterISO8601.timeZone = [NSTimeZone timeZoneWithAbbreviation:@"GMT"];
_dateFormatterISO8601.dateFormat = @"yyyy-MM-dd'T'HH:mm:ss'+00:00'";
_dateFormatterISO8601.locale = [[NSLocale alloc] initWithLocaleIdentifier:@"en_US"];
GWS_DCHECK(_dateFormatterISO8601);
}
if (_dateFormatterQueue == NULL) {
_dateFormatterQueue = dispatch_queue_create(NULL, DISPATCH_QUEUE_SERIAL);
GWS_DCHECK(_dateFormatterQueue);
}
}
NSString* GCDWebServerNormalizeHeaderValue(NSString* value) {
if (value) {
NSRange range = [value rangeOfString:@";"]; // Assume part before ";" separator is case-insensitive
if (range.location != NSNotFound) {
value = [[[value substringToIndex:range.location] lowercaseString] stringByAppendingString:[value substringFromIndex:range.location]];
} else {
value = [value lowercaseString];
}
}
return value;
}
NSString* GCDWebServerTruncateHeaderValue(NSString* value) {
if (value) {
NSRange range = [value rangeOfString:@";"];
if (range.location != NSNotFound) {
return [value substringToIndex:range.location];
}
}
return value;
}
NSString* GCDWebServerExtractHeaderValueParameter(NSString* value, NSString* name) {
NSString* parameter = nil;
if (value) {
NSScanner* scanner = [[NSScanner alloc] initWithString:value];
[scanner setCaseSensitive:NO]; // Assume parameter names are case-insensitive
NSString* string = [NSString stringWithFormat:@"%@=", name];
if ([scanner scanUpToString:string intoString:NULL]) {
[scanner scanString:string intoString:NULL];
if ([scanner scanString:@"\"" intoString:NULL]) {
[scanner scanUpToString:@"\"" intoString:&parameter];
} else {
[scanner scanUpToCharactersFromSet:[NSCharacterSet whitespaceCharacterSet] intoString:&parameter];
}
}
}
return parameter;
}
// http://www.w3schools.com/tags/ref_charactersets.asp
NSStringEncoding GCDWebServerStringEncodingFromCharset(NSString* charset) {
NSStringEncoding encoding = kCFStringEncodingInvalidId;
if (charset) {
encoding = CFStringConvertEncodingToNSStringEncoding(CFStringConvertIANACharSetNameToEncoding((CFStringRef)charset));
}
return (encoding != kCFStringEncodingInvalidId ? encoding : NSUTF8StringEncoding);
}
NSString* GCDWebServerFormatRFC822(NSDate* date) {
__block NSString* string;
dispatch_sync(_dateFormatterQueue, ^{
string = [_dateFormatterRFC822 stringFromDate:date];
});
return string;
}
NSDate* GCDWebServerParseRFC822(NSString* string) {
__block NSDate* date;
dispatch_sync(_dateFormatterQueue, ^{
date = [_dateFormatterRFC822 dateFromString:string];
});
return date;
}
NSString* GCDWebServerFormatISO8601(NSDate* date) {
__block NSString* string;
dispatch_sync(_dateFormatterQueue, ^{
string = [_dateFormatterISO8601 stringFromDate:date];
});
return string;
}
NSDate* GCDWebServerParseISO8601(NSString* string) {
__block NSDate* date;
dispatch_sync(_dateFormatterQueue, ^{
date = [_dateFormatterISO8601 dateFromString:string];
});
return date;
}
BOOL GCDWebServerIsTextContentType(NSString* type) {
return ([type hasPrefix:@"text/"] || [type hasPrefix:@"application/json"] || [type hasPrefix:@"application/xml"]);
}
NSString* GCDWebServerDescribeData(NSData* data, NSString* type) {
if (GCDWebServerIsTextContentType(type)) {
NSString* charset = GCDWebServerExtractHeaderValueParameter(type, @"charset");
NSString* string = [[NSString alloc] initWithData:data encoding:GCDWebServerStringEncodingFromCharset(charset)];
if (string) {
return string;
}
}
return [NSString stringWithFormat:@"<%lu bytes>", (unsigned long)data.length];
}
NSString* GCDWebServerGetMimeTypeForExtension(NSString* extension, NSDictionary* overrides) {
NSDictionary* builtInOverrides = @{ @"css" : @"text/css" };
NSString* mimeType = nil;
extension = [extension lowercaseString];
if (extension.length) {
mimeType = [overrides objectForKey:extension];
if (mimeType == nil) {
mimeType = [builtInOverrides objectForKey:extension];
}
if (mimeType == nil) {
CFStringRef uti = UTTypeCreatePreferredIdentifierForTag(kUTTagClassFilenameExtension, (__bridge CFStringRef)extension, NULL);
if (uti) {
mimeType = CFBridgingRelease(UTTypeCopyPreferredTagWithClass(uti, kUTTagClassMIMEType));
CFRelease(uti);
}
}
}
return mimeType ? mimeType : kGCDWebServerDefaultMimeType;
}
NSString* GCDWebServerEscapeURLString(NSString* string) {
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
return CFBridgingRelease(CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault, (CFStringRef)string, NULL, CFSTR(":@/?&=+"), kCFStringEncodingUTF8));
#pragma clang diagnostic pop
}
NSString* GCDWebServerUnescapeURLString(NSString* string) {
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
return CFBridgingRelease(CFURLCreateStringByReplacingPercentEscapesUsingEncoding(kCFAllocatorDefault, (CFStringRef)string, CFSTR(""), kCFStringEncodingUTF8));
#pragma clang diagnostic pop
}
NSDictionary* GCDWebServerParseURLEncodedForm(NSString* form) {
NSMutableDictionary* parameters = [NSMutableDictionary dictionary];
NSScanner* scanner = [[NSScanner alloc] initWithString:form];
[scanner setCharactersToBeSkipped:nil];
while (1) {
NSString* key = nil;
if (![scanner scanUpToString:@"=" intoString:&key] || [scanner isAtEnd]) {
break;
}
[scanner setScanLocation:([scanner scanLocation] + 1)];
NSString* value = nil;
[scanner scanUpToString:@"&" intoString:&value];
if (value == nil) {
value = @"";
}
key = [key stringByReplacingOccurrencesOfString:@"+" withString:@" "];
NSString* unescapedKey = key ? GCDWebServerUnescapeURLString(key) : nil;
value = [value stringByReplacingOccurrencesOfString:@"+" withString:@" "];
NSString* unescapedValue = value ? GCDWebServerUnescapeURLString(value) : nil;
if (unescapedKey && unescapedValue) {
[parameters setObject:unescapedValue forKey:unescapedKey];
} else {
GWS_LOG_WARNING(@"Failed parsing URL encoded form for key \"%@\" and value \"%@\"", key, value);
GWS_DNOT_REACHED();
}
if ([scanner isAtEnd]) {
break;
}
[scanner setScanLocation:([scanner scanLocation] + 1)];
}
return parameters;
}
NSString* GCDWebServerStringFromSockAddr(const struct sockaddr* addr, BOOL includeService) {
char hostBuffer[NI_MAXHOST];
char serviceBuffer[NI_MAXSERV];
if (getnameinfo(addr, addr->sa_len, hostBuffer, sizeof(hostBuffer), serviceBuffer, sizeof(serviceBuffer), NI_NUMERICHOST | NI_NUMERICSERV | NI_NOFQDN) != 0) {
#if DEBUG
GWS_DNOT_REACHED();
#else
return @"";
#endif
}
return includeService ? [NSString stringWithFormat:@"%s:%s", hostBuffer, serviceBuffer] : (NSString*)[NSString stringWithUTF8String:hostBuffer];
}
NSString* GCDWebServerGetPrimaryIPAddress(BOOL useIPv6) {
NSString* address = nil;
#if TARGET_OS_IPHONE
#if !TARGET_IPHONE_SIMULATOR && !TARGET_OS_TV
const char* primaryInterface = "en0"; // WiFi interface on iOS
#endif
#else
const char* primaryInterface = NULL;
SCDynamicStoreRef store = SCDynamicStoreCreate(kCFAllocatorDefault, CFSTR("GCDWebServer"), NULL, NULL);
if (store) {
CFPropertyListRef info = SCDynamicStoreCopyValue(store, CFSTR("State:/Network/Global/IPv4")); // There is no equivalent for IPv6 but the primary interface should be the same
if (info) {
NSString* interface = [(__bridge NSDictionary*)info objectForKey:@"PrimaryInterface"];
if (interface) {
primaryInterface = [[NSString stringWithString:interface] UTF8String]; // Copy string to auto-release pool
}
CFRelease(info);
}
CFRelease(store);
}
if (primaryInterface == NULL) {
primaryInterface = "lo0";
}
#endif
struct ifaddrs* list;
if (getifaddrs(&list) >= 0) {
for (struct ifaddrs* ifap = list; ifap; ifap = ifap->ifa_next) {
#if TARGET_IPHONE_SIMULATOR || TARGET_OS_TV
// Assume en0 is Ethernet and en1 is WiFi since there is no way to use SystemConfiguration framework in iOS Simulator
// Assumption holds for Apple TV running tvOS
if (strcmp(ifap->ifa_name, "en0") && strcmp(ifap->ifa_name, "en1"))
#else
if (strcmp(ifap->ifa_name, primaryInterface))
#endif
{
continue;
}
if ((ifap->ifa_flags & IFF_UP) && ((!useIPv6 && (ifap->ifa_addr->sa_family == AF_INET)) || (useIPv6 && (ifap->ifa_addr->sa_family == AF_INET6)))) {
address = GCDWebServerStringFromSockAddr(ifap->ifa_addr, NO);
break;
}
}
freeifaddrs(list);
}
return address;
}
NSString* GCDWebServerComputeMD5Digest(NSString* format, ...) {
va_list arguments;
va_start(arguments, format);
const char* string = [[[NSString alloc] initWithFormat:format arguments:arguments] UTF8String];
va_end(arguments);
unsigned char md5[CC_MD5_DIGEST_LENGTH];
CC_MD5(string, (CC_LONG)strlen(string), md5);
char buffer[2 * CC_MD5_DIGEST_LENGTH + 1];
for (int i = 0; i < CC_MD5_DIGEST_LENGTH; ++i) {
unsigned char byte = md5[i];
unsigned char byteHi = (byte & 0xF0) >> 4;
buffer[2 * i + 0] = byteHi >= 10 ? 'a' + byteHi - 10 : '0' + byteHi;
unsigned char byteLo = byte & 0x0F;
buffer[2 * i + 1] = byteLo >= 10 ? 'a' + byteLo - 10 : '0' + byteLo;
}
buffer[2 * CC_MD5_DIGEST_LENGTH] = 0;
return (NSString*)[NSString stringWithUTF8String:buffer];
}
@@ -0,0 +1,116 @@
/*
Copyright (c) 2012-2015, Pierre-Olivier Latour
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* The name of Pierre-Olivier Latour may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL PIERRE-OLIVIER LATOUR BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
// http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
// http://www.iana.org/assignments/http-status-codes/http-status-codes.xhtml
#import <Foundation/Foundation.h>
/**
* Convenience constants for "informational" HTTP status codes.
*/
typedef NS_ENUM(NSInteger, GCDWebServerInformationalHTTPStatusCode) {
kGCDWebServerHTTPStatusCode_Continue = 100,
kGCDWebServerHTTPStatusCode_SwitchingProtocols = 101,
kGCDWebServerHTTPStatusCode_Processing = 102
};
/**
* Convenience constants for "successful" HTTP status codes.
*/
typedef NS_ENUM(NSInteger, GCDWebServerSuccessfulHTTPStatusCode) {
kGCDWebServerHTTPStatusCode_OK = 200,
kGCDWebServerHTTPStatusCode_Created = 201,
kGCDWebServerHTTPStatusCode_Accepted = 202,
kGCDWebServerHTTPStatusCode_NonAuthoritativeInformation = 203,
kGCDWebServerHTTPStatusCode_NoContent = 204,
kGCDWebServerHTTPStatusCode_ResetContent = 205,
kGCDWebServerHTTPStatusCode_PartialContent = 206,
kGCDWebServerHTTPStatusCode_MultiStatus = 207,
kGCDWebServerHTTPStatusCode_AlreadyReported = 208
};
/**
* Convenience constants for "redirection" HTTP status codes.
*/
typedef NS_ENUM(NSInteger, GCDWebServerRedirectionHTTPStatusCode) {
kGCDWebServerHTTPStatusCode_MultipleChoices = 300,
kGCDWebServerHTTPStatusCode_MovedPermanently = 301,
kGCDWebServerHTTPStatusCode_Found = 302,
kGCDWebServerHTTPStatusCode_SeeOther = 303,
kGCDWebServerHTTPStatusCode_NotModified = 304,
kGCDWebServerHTTPStatusCode_UseProxy = 305,
kGCDWebServerHTTPStatusCode_TemporaryRedirect = 307,
kGCDWebServerHTTPStatusCode_PermanentRedirect = 308
};
/**
* Convenience constants for "client error" HTTP status codes.
*/
typedef NS_ENUM(NSInteger, GCDWebServerClientErrorHTTPStatusCode) {
kGCDWebServerHTTPStatusCode_BadRequest = 400,
kGCDWebServerHTTPStatusCode_Unauthorized = 401,
kGCDWebServerHTTPStatusCode_PaymentRequired = 402,
kGCDWebServerHTTPStatusCode_Forbidden = 403,
kGCDWebServerHTTPStatusCode_NotFound = 404,
kGCDWebServerHTTPStatusCode_MethodNotAllowed = 405,
kGCDWebServerHTTPStatusCode_NotAcceptable = 406,
kGCDWebServerHTTPStatusCode_ProxyAuthenticationRequired = 407,
kGCDWebServerHTTPStatusCode_RequestTimeout = 408,
kGCDWebServerHTTPStatusCode_Conflict = 409,
kGCDWebServerHTTPStatusCode_Gone = 410,
kGCDWebServerHTTPStatusCode_LengthRequired = 411,
kGCDWebServerHTTPStatusCode_PreconditionFailed = 412,
kGCDWebServerHTTPStatusCode_RequestEntityTooLarge = 413,
kGCDWebServerHTTPStatusCode_RequestURITooLong = 414,
kGCDWebServerHTTPStatusCode_UnsupportedMediaType = 415,
kGCDWebServerHTTPStatusCode_RequestedRangeNotSatisfiable = 416,
kGCDWebServerHTTPStatusCode_ExpectationFailed = 417,
kGCDWebServerHTTPStatusCode_UnprocessableEntity = 422,
kGCDWebServerHTTPStatusCode_Locked = 423,
kGCDWebServerHTTPStatusCode_FailedDependency = 424,
kGCDWebServerHTTPStatusCode_UpgradeRequired = 426,
kGCDWebServerHTTPStatusCode_PreconditionRequired = 428,
kGCDWebServerHTTPStatusCode_TooManyRequests = 429,
kGCDWebServerHTTPStatusCode_RequestHeaderFieldsTooLarge = 431
};
/**
* Convenience constants for "server error" HTTP status codes.
*/
typedef NS_ENUM(NSInteger, GCDWebServerServerErrorHTTPStatusCode) {
kGCDWebServerHTTPStatusCode_InternalServerError = 500,
kGCDWebServerHTTPStatusCode_NotImplemented = 501,
kGCDWebServerHTTPStatusCode_BadGateway = 502,
kGCDWebServerHTTPStatusCode_ServiceUnavailable = 503,
kGCDWebServerHTTPStatusCode_GatewayTimeout = 504,
kGCDWebServerHTTPStatusCode_HTTPVersionNotSupported = 505,
kGCDWebServerHTTPStatusCode_InsufficientStorage = 507,
kGCDWebServerHTTPStatusCode_LoopDetected = 508,
kGCDWebServerHTTPStatusCode_NotExtended = 510,
kGCDWebServerHTTPStatusCode_NetworkAuthenticationRequired = 511
};
@@ -0,0 +1,224 @@
/*
Copyright (c) 2012-2015, Pierre-Olivier Latour
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* The name of Pierre-Olivier Latour may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL PIERRE-OLIVIER LATOUR BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#import <os/object.h>
#import <sys/socket.h>
/**
* All GCDWebServer headers.
*/
#import "GCDWebServerHTTPStatusCodes.h"
#import "GCDWebServerFunctions.h"
#import "GCDWebServer.h"
#import "GCDWebServerConnection.h"
#import "GCDWebServerDataRequest.h"
#import "GCDWebServerFileRequest.h"
#import "GCDWebServerMultiPartFormRequest.h"
#import "GCDWebServerURLEncodedFormRequest.h"
#import "GCDWebServerDataResponse.h"
#import "GCDWebServerErrorResponse.h"
#import "GCDWebServerFileResponse.h"
#import "GCDWebServerStreamedResponse.h"
/**
* Check if a custom logging facility should be used instead.
*/
#if defined(__GCDWEBSERVER_LOGGING_HEADER__)
#define __GCDWEBSERVER_LOGGING_FACILITY_CUSTOM__
#import __GCDWEBSERVER_LOGGING_HEADER__
/**
* Automatically detect if XLFacility is available and if so use it as a
* logging facility.
*/
#elif defined(__has_include) && __has_include("XLFacilityMacros.h")
#define __GCDWEBSERVER_LOGGING_FACILITY_XLFACILITY__
#undef XLOG_TAG
#define XLOG_TAG @"gcdwebserver.internal"
#import "XLFacilityMacros.h"
#define GWS_LOG_DEBUG(...) XLOG_DEBUG(__VA_ARGS__)
#define GWS_LOG_VERBOSE(...) XLOG_VERBOSE(__VA_ARGS__)
#define GWS_LOG_INFO(...) XLOG_INFO(__VA_ARGS__)
#define GWS_LOG_WARNING(...) XLOG_WARNING(__VA_ARGS__)
#define GWS_LOG_ERROR(...) XLOG_ERROR(__VA_ARGS__)
#define GWS_DCHECK(__CONDITION__) XLOG_DEBUG_CHECK(__CONDITION__)
#define GWS_DNOT_REACHED() XLOG_DEBUG_UNREACHABLE()
/**
* If all of the above fail, then use GCDWebServer built-in
* logging facility.
*/
#else
#define __GCDWEBSERVER_LOGGING_FACILITY_BUILTIN__
typedef NS_ENUM(int, GCDWebServerLoggingLevel) {
kGCDWebServerLoggingLevel_Debug = 0,
kGCDWebServerLoggingLevel_Verbose,
kGCDWebServerLoggingLevel_Info,
kGCDWebServerLoggingLevel_Warning,
kGCDWebServerLoggingLevel_Error
};
extern GCDWebServerLoggingLevel GCDWebServerLogLevel;
extern void GCDWebServerLogMessage(GCDWebServerLoggingLevel level, NSString* _Nonnull format, ...) NS_FORMAT_FUNCTION(2, 3);
#if DEBUG
#define GWS_LOG_DEBUG(...) \
do { \
if (GCDWebServerLogLevel <= kGCDWebServerLoggingLevel_Debug) GCDWebServerLogMessage(kGCDWebServerLoggingLevel_Debug, __VA_ARGS__); \
} while (0)
#else
#define GWS_LOG_DEBUG(...)
#endif
#define GWS_LOG_VERBOSE(...) \
do { \
if (GCDWebServerLogLevel <= kGCDWebServerLoggingLevel_Verbose) GCDWebServerLogMessage(kGCDWebServerLoggingLevel_Verbose, __VA_ARGS__); \
} while (0)
#define GWS_LOG_INFO(...) \
do { \
if (GCDWebServerLogLevel <= kGCDWebServerLoggingLevel_Info) GCDWebServerLogMessage(kGCDWebServerLoggingLevel_Info, __VA_ARGS__); \
} while (0)
#define GWS_LOG_WARNING(...) \
do { \
if (GCDWebServerLogLevel <= kGCDWebServerLoggingLevel_Warning) GCDWebServerLogMessage(kGCDWebServerLoggingLevel_Warning, __VA_ARGS__); \
} while (0)
#define GWS_LOG_ERROR(...) \
do { \
if (GCDWebServerLogLevel <= kGCDWebServerLoggingLevel_Error) GCDWebServerLogMessage(kGCDWebServerLoggingLevel_Error, __VA_ARGS__); \
} while (0)
#endif
/**
* Consistency check macros used when building Debug only.
*/
#if !defined(GWS_DCHECK) || !defined(GWS_DNOT_REACHED)
#if DEBUG
#define GWS_DCHECK(__CONDITION__) \
do { \
if (!(__CONDITION__)) { \
abort(); \
} \
} while (0)
#define GWS_DNOT_REACHED() abort()
#else
#define GWS_DCHECK(__CONDITION__)
#define GWS_DNOT_REACHED()
#endif
#endif
NS_ASSUME_NONNULL_BEGIN
/**
* GCDWebServer internal constants and APIs.
*/
#define kGCDWebServerDefaultMimeType @"application/octet-stream"
#define kGCDWebServerErrorDomain @"GCDWebServerErrorDomain"
static inline BOOL GCDWebServerIsValidByteRange(NSRange range) {
return ((range.location != NSUIntegerMax) || (range.length > 0));
}
static inline NSError* GCDWebServerMakePosixError(int code) {
return [NSError errorWithDomain:NSPOSIXErrorDomain code:code userInfo:@{NSLocalizedDescriptionKey : (NSString*)[NSString stringWithUTF8String:strerror(code)]}];
}
extern void GCDWebServerInitializeFunctions();
extern NSString* _Nullable GCDWebServerNormalizeHeaderValue(NSString* _Nullable value);
extern NSString* _Nullable GCDWebServerTruncateHeaderValue(NSString* _Nullable value);
extern NSString* _Nullable GCDWebServerExtractHeaderValueParameter(NSString* _Nullable value, NSString* attribute);
extern NSStringEncoding GCDWebServerStringEncodingFromCharset(NSString* charset);
extern BOOL GCDWebServerIsTextContentType(NSString* type);
extern NSString* GCDWebServerDescribeData(NSData* data, NSString* contentType);
extern NSString* GCDWebServerComputeMD5Digest(NSString* format, ...) NS_FORMAT_FUNCTION(1, 2);
extern NSString* GCDWebServerStringFromSockAddr(const struct sockaddr* addr, BOOL includeService);
@interface GCDWebServerConnection ()
- (instancetype)initWithServer:(GCDWebServer*)server localAddress:(NSData*)localAddress remoteAddress:(NSData*)remoteAddress socket:(CFSocketNativeHandle)socket;
@end
@interface GCDWebServer ()
@property(nonatomic, readonly) NSMutableArray* handlers;
@property(nonatomic, readonly, nullable) NSString* serverName;
@property(nonatomic, readonly, nullable) NSString* authenticationRealm;
@property(nonatomic, readonly, nullable) NSMutableDictionary* authenticationBasicAccounts;
@property(nonatomic, readonly, nullable) NSMutableDictionary* authenticationDigestAccounts;
@property(nonatomic, readonly) BOOL shouldAutomaticallyMapHEADToGET;
@property(nonatomic, readonly) dispatch_queue_priority_t dispatchQueuePriority;
- (void)willStartConnection:(GCDWebServerConnection*)connection;
- (void)didEndConnection:(GCDWebServerConnection*)connection;
@end
@interface GCDWebServerHandler : NSObject
@property(nonatomic, readonly) GCDWebServerMatchBlock matchBlock;
@property(nonatomic, readonly) GCDWebServerAsyncProcessBlock asyncProcessBlock;
@end
@interface GCDWebServerRequest ()
@property(nonatomic, readonly) BOOL usesChunkedTransferEncoding;
@property(nonatomic) NSData* localAddressData;
@property(nonatomic) NSData* remoteAddressData;
- (void)prepareForWriting;
- (BOOL)performOpen:(NSError**)error;
- (BOOL)performWriteData:(NSData*)data error:(NSError**)error;
- (BOOL)performClose:(NSError**)error;
- (void)setAttribute:(nullable id)attribute forKey:(NSString*)key;
@end
@interface GCDWebServerResponse ()
@property(nonatomic, readonly) NSDictionary* additionalHeaders;
@property(nonatomic, readonly) BOOL usesChunkedTransferEncoding;
- (void)prepareForReading;
- (BOOL)performOpen:(NSError**)error;
- (void)performReadDataWithCompletion:(GCDWebServerBodyReaderCompletionBlock)block;
- (void)performClose;
@end
NS_ASSUME_NONNULL_END
@@ -0,0 +1,210 @@
/*
Copyright (c) 2012-2015, Pierre-Olivier Latour
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* The name of Pierre-Olivier Latour may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL PIERRE-OLIVIER LATOUR BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#import <Foundation/Foundation.h>
NS_ASSUME_NONNULL_BEGIN
/**
* Attribute key to retrieve an NSArray containing NSStrings from a GCDWebServerRequest
* with the contents of any regular expression captures done on the request path.
*
* @warning This attribute will only be set on the request if adding a handler using
* -addHandlerForMethod:pathRegex:requestClass:processBlock:.
*/
extern NSString* const GCDWebServerRequestAttribute_RegexCaptures;
/**
* This protocol is used by the GCDWebServerConnection to communicate with
* the GCDWebServerRequest and write the received HTTP body data.
*
* Note that multiple GCDWebServerBodyWriter objects can be chained together
* internally e.g. to automatically decode gzip encoded content before
* passing it on to the GCDWebServerRequest.
*
* @warning These methods can be called on any GCD thread.
*/
@protocol GCDWebServerBodyWriter <NSObject>
/**
* This method is called before any body data is received.
*
* It should return YES on success or NO on failure and set the "error" argument
* which is guaranteed to be non-NULL.
*/
- (BOOL)open:(NSError**)error;
/**
* This method is called whenever body data has been received.
*
* It should return YES on success or NO on failure and set the "error" argument
* which is guaranteed to be non-NULL.
*/
- (BOOL)writeData:(NSData*)data error:(NSError**)error;
/**
* This method is called after all body data has been received.
*
* It should return YES on success or NO on failure and set the "error" argument
* which is guaranteed to be non-NULL.
*/
- (BOOL)close:(NSError**)error;
@end
/**
* The GCDWebServerRequest class is instantiated by the GCDWebServerConnection
* after the HTTP headers have been received. Each instance wraps a single HTTP
* request. If a body is present, the methods from the GCDWebServerBodyWriter
* protocol will be called by the GCDWebServerConnection to receive it.
*
* The default implementation of the GCDWebServerBodyWriter protocol on the class
* simply ignores the body data.
*
* @warning GCDWebServerRequest instances can be created and used on any GCD thread.
*/
@interface GCDWebServerRequest : NSObject <GCDWebServerBodyWriter>
/**
* Returns the HTTP method for the request.
*/
@property(nonatomic, readonly) NSString* method;
/**
* Returns the URL for the request.
*/
@property(nonatomic, readonly) NSURL* URL;
/**
* Returns the HTTP headers for the request.
*/
@property(nonatomic, readonly) NSDictionary* headers;
/**
* Returns the path component of the URL for the request.
*/
@property(nonatomic, readonly) NSString* path;
/**
* Returns the parsed and unescaped query component of the URL for the request.
*
* @warning This property will be nil if there is no query in the URL.
*/
@property(nonatomic, readonly, nullable) NSDictionary* query;
/**
* Returns the content type for the body of the request parsed from the
* "Content-Type" header.
*
* This property will be nil if the request has no body or set to
* "application/octet-stream" if a body is present but there was no
* "Content-Type" header.
*/
@property(nonatomic, readonly, nullable) NSString* contentType;
/**
* Returns the content length for the body of the request parsed from the
* "Content-Length" header.
*
* This property will be set to "NSUIntegerMax" if the request has no body or
* if there is a body but no "Content-Length" header, typically because
* chunked transfer encoding is used.
*/
@property(nonatomic, readonly) NSUInteger contentLength;
/**
* Returns the parsed "If-Modified-Since" header or nil if absent or malformed.
*/
@property(nonatomic, readonly, nullable) NSDate* ifModifiedSince;
/**
* Returns the parsed "If-None-Match" header or nil if absent or malformed.
*/
@property(nonatomic, readonly, nullable) NSString* ifNoneMatch;
/**
* Returns the parsed "Range" header or (NSUIntegerMax, 0) if absent or malformed.
* The range will be set to (offset, length) if expressed from the beginning
* of the entity body, or (NSUIntegerMax, length) if expressed from its end.
*/
@property(nonatomic, readonly) NSRange byteRange;
/**
* Returns YES if the client supports gzip content encoding according to the
* "Accept-Encoding" header.
*/
@property(nonatomic, readonly) BOOL acceptsGzipContentEncoding;
/**
* Returns the address of the local peer (i.e. server) for the request
* as a raw "struct sockaddr".
*/
@property(nonatomic, readonly) NSData* localAddressData;
/**
* Returns the address of the local peer (i.e. server) for the request
* as a string.
*/
@property(nonatomic, readonly) NSString* localAddressString;
/**
* Returns the address of the remote peer (i.e. client) for the request
* as a raw "struct sockaddr".
*/
@property(nonatomic, readonly) NSData* remoteAddressData;
/**
* Returns the address of the remote peer (i.e. client) for the request
* as a string.
*/
@property(nonatomic, readonly) NSString* remoteAddressString;
/**
* This method is the designated initializer for the class.
*/
- (instancetype)initWithMethod:(NSString*)method url:(NSURL*)url headers:(NSDictionary*)headers path:(NSString*)path query:(nullable NSDictionary*)query;
/**
* Convenience method that checks if the contentType property is defined.
*/
- (BOOL)hasBody;
/**
* Convenience method that checks if the byteRange property is defined.
*/
- (BOOL)hasByteRange;
/**
* Retrieves an attribute associated with this request using the given key.
*
* @return The attribute value for the key.
*/
- (nullable id)attributeForKey:(NSString*)key;
@end
NS_ASSUME_NONNULL_END
@@ -0,0 +1,303 @@
/*
Copyright (c) 2012-2015, Pierre-Olivier Latour
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* The name of Pierre-Olivier Latour may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL PIERRE-OLIVIER LATOUR BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#if !__has_feature(objc_arc)
#error GCDWebServer requires ARC
#endif
#import <zlib.h>
#import "GCDWebServerPrivate.h"
NSString* const GCDWebServerRequestAttribute_RegexCaptures = @"GCDWebServerRequestAttribute_RegexCaptures";
#define kZlibErrorDomain @"ZlibErrorDomain"
#define kGZipInitialBufferSize (256 * 1024)
@interface GCDWebServerBodyDecoder : NSObject <GCDWebServerBodyWriter>
@end
@interface GCDWebServerGZipDecoder : GCDWebServerBodyDecoder
@end
@implementation GCDWebServerBodyDecoder {
GCDWebServerRequest* __unsafe_unretained _request;
id<GCDWebServerBodyWriter> __unsafe_unretained _writer;
}
- (instancetype)initWithRequest:(GCDWebServerRequest* _Nonnull)request writer:(id<GCDWebServerBodyWriter> _Nonnull)writer {
if ((self = [super init])) {
_request = request;
_writer = writer;
}
return self;
}
- (BOOL)open:(NSError**)error {
return [_writer open:error];
}
- (BOOL)writeData:(NSData*)data error:(NSError**)error {
return [_writer writeData:data error:error];
}
- (BOOL)close:(NSError**)error {
return [_writer close:error];
}
@end
@implementation GCDWebServerGZipDecoder {
z_stream _stream;
BOOL _finished;
}
- (BOOL)open:(NSError**)error {
int result = inflateInit2(&_stream, 15 + 16);
if (result != Z_OK) {
if (error) {
*error = [NSError errorWithDomain:kZlibErrorDomain code:result userInfo:nil];
}
return NO;
}
if (![super open:error]) {
inflateEnd(&_stream);
return NO;
}
return YES;
}
- (BOOL)writeData:(NSData*)data error:(NSError**)error {
GWS_DCHECK(!_finished);
_stream.next_in = (Bytef*)data.bytes;
_stream.avail_in = (uInt)data.length;
NSMutableData* decodedData = [[NSMutableData alloc] initWithLength:kGZipInitialBufferSize];
if (decodedData == nil) {
GWS_DNOT_REACHED();
return NO;
}
NSUInteger length = 0;
while (1) {
NSUInteger maxLength = decodedData.length - length;
_stream.next_out = (Bytef*)((char*)decodedData.mutableBytes + length);
_stream.avail_out = (uInt)maxLength;
int result = inflate(&_stream, Z_NO_FLUSH);
if ((result != Z_OK) && (result != Z_STREAM_END)) {
if (error) {
*error = [NSError errorWithDomain:kZlibErrorDomain code:result userInfo:nil];
}
return NO;
}
length += maxLength - _stream.avail_out;
if (_stream.avail_out > 0) {
if (result == Z_STREAM_END) {
_finished = YES;
}
break;
}
decodedData.length = 2 * decodedData.length; // zlib has used all the output buffer so resize it and try again in case more data is available
}
decodedData.length = length;
BOOL success = length ? [super writeData:decodedData error:error] : YES; // No need to call writer if we have no data yet
return success;
}
- (BOOL)close:(NSError**)error {
GWS_DCHECK(_finished);
inflateEnd(&_stream);
return [super close:error];
}
@end
@implementation GCDWebServerRequest {
BOOL _opened;
NSMutableArray* _decoders;
id<GCDWebServerBodyWriter> __unsafe_unretained _writer;
NSMutableDictionary* _attributes;
}
- (instancetype)initWithMethod:(NSString*)method url:(NSURL*)url headers:(NSDictionary*)headers path:(NSString*)path query:(NSDictionary*)query {
if ((self = [super init])) {
_method = [method copy];
_URL = url;
_headers = headers;
_path = [path copy];
_query = query;
_contentType = GCDWebServerNormalizeHeaderValue([_headers objectForKey:@"Content-Type"]);
_usesChunkedTransferEncoding = [GCDWebServerNormalizeHeaderValue([_headers objectForKey:@"Transfer-Encoding"]) isEqualToString:@"chunked"];
NSString* lengthHeader = [_headers objectForKey:@"Content-Length"];
if (lengthHeader) {
NSInteger length = [lengthHeader integerValue];
if (_usesChunkedTransferEncoding || (length < 0)) {
GWS_LOG_WARNING(@"Invalid 'Content-Length' header '%@' for '%@' request on \"%@\"", lengthHeader, _method, _URL);
GWS_DNOT_REACHED();
return nil;
}
_contentLength = length;
if (_contentType == nil) {
_contentType = kGCDWebServerDefaultMimeType;
}
} else if (_usesChunkedTransferEncoding) {
if (_contentType == nil) {
_contentType = kGCDWebServerDefaultMimeType;
}
_contentLength = NSUIntegerMax;
} else {
if (_contentType) {
GWS_LOG_WARNING(@"Ignoring 'Content-Type' header for '%@' request on \"%@\"", _method, _URL);
_contentType = nil; // Content-Type without Content-Length or chunked-encoding doesn't make sense
}
_contentLength = NSUIntegerMax;
}
NSString* modifiedHeader = [_headers objectForKey:@"If-Modified-Since"];
if (modifiedHeader) {
_ifModifiedSince = [GCDWebServerParseRFC822(modifiedHeader) copy];
}
_ifNoneMatch = [_headers objectForKey:@"If-None-Match"];
_byteRange = NSMakeRange(NSUIntegerMax, 0);
NSString* rangeHeader = GCDWebServerNormalizeHeaderValue([_headers objectForKey:@"Range"]);
if (rangeHeader) {
if ([rangeHeader hasPrefix:@"bytes="]) {
NSArray* components = [[rangeHeader substringFromIndex:6] componentsSeparatedByString:@","];
if (components.count == 1) {
components = [[components firstObject] componentsSeparatedByString:@"-"];
if (components.count == 2) {
NSString* startString = [components objectAtIndex:0];
NSInteger startValue = [startString integerValue];
NSString* endString = [components objectAtIndex:1];
NSInteger endValue = [endString integerValue];
if (startString.length && (startValue >= 0) && endString.length && (endValue >= startValue)) { // The second 500 bytes: "500-999"
_byteRange.location = startValue;
_byteRange.length = endValue - startValue + 1;
} else if (startString.length && (startValue >= 0)) { // The bytes after 9500 bytes: "9500-"
_byteRange.location = startValue;
_byteRange.length = NSUIntegerMax;
} else if (endString.length && (endValue > 0)) { // The final 500 bytes: "-500"
_byteRange.location = NSUIntegerMax;
_byteRange.length = endValue;
}
}
}
}
if ((_byteRange.location == NSUIntegerMax) && (_byteRange.length == 0)) { // Ignore "Range" header if syntactically invalid
GWS_LOG_WARNING(@"Failed to parse 'Range' header \"%@\" for url: %@", rangeHeader, url);
}
}
if ([[_headers objectForKey:@"Accept-Encoding"] rangeOfString:@"gzip"].location != NSNotFound) {
_acceptsGzipContentEncoding = YES;
}
_decoders = [[NSMutableArray alloc] init];
_attributes = [[NSMutableDictionary alloc] init];
}
return self;
}
- (BOOL)hasBody {
return _contentType ? YES : NO;
}
- (BOOL)hasByteRange {
return GCDWebServerIsValidByteRange(_byteRange);
}
- (id)attributeForKey:(NSString*)key {
return [_attributes objectForKey:key];
}
- (BOOL)open:(NSError**)error {
return YES;
}
- (BOOL)writeData:(NSData*)data error:(NSError**)error {
return YES;
}
- (BOOL)close:(NSError**)error {
return YES;
}
- (void)prepareForWriting {
_writer = self;
if ([GCDWebServerNormalizeHeaderValue([self.headers objectForKey:@"Content-Encoding"]) isEqualToString:@"gzip"]) {
GCDWebServerGZipDecoder* decoder = [[GCDWebServerGZipDecoder alloc] initWithRequest:self writer:_writer];
[_decoders addObject:decoder];
_writer = decoder;
}
}
- (BOOL)performOpen:(NSError**)error {
GWS_DCHECK(_contentType);
GWS_DCHECK(_writer);
if (_opened) {
GWS_DNOT_REACHED();
return NO;
}
_opened = YES;
return [_writer open:error];
}
- (BOOL)performWriteData:(NSData*)data error:(NSError**)error {
GWS_DCHECK(_opened);
return [_writer writeData:data error:error];
}
- (BOOL)performClose:(NSError**)error {
GWS_DCHECK(_opened);
return [_writer close:error];
}
- (void)setAttribute:(id)attribute forKey:(NSString*)key {
[_attributes setValue:attribute forKey:key];
}
- (NSString*)localAddressString {
return GCDWebServerStringFromSockAddr(_localAddressData.bytes, YES);
}
- (NSString*)remoteAddressString {
return GCDWebServerStringFromSockAddr(_remoteAddressData.bytes, YES);
}
- (NSString*)description {
NSMutableString* description = [NSMutableString stringWithFormat:@"%@ %@", _method, _path];
for (NSString* argument in [[_query allKeys] sortedArrayUsingSelector:@selector(compare:)]) {
[description appendFormat:@"\n %@ = %@", argument, [_query objectForKey:argument]];
}
[description appendString:@"\n"];
for (NSString* header in [[_headers allKeys] sortedArrayUsingSelector:@selector(compare:)]) {
[description appendFormat:@"\n%@: %@", header, [_headers objectForKey:header]];
}
return description;
}
@end
@@ -0,0 +1,212 @@
/*
Copyright (c) 2012-2015, Pierre-Olivier Latour
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* The name of Pierre-Olivier Latour may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL PIERRE-OLIVIER LATOUR BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#import <Foundation/Foundation.h>
NS_ASSUME_NONNULL_BEGIN
/**
* The GCDWebServerBodyReaderCompletionBlock is passed by GCDWebServer to the
* GCDWebServerBodyReader object when reading data from it asynchronously.
*/
typedef void (^GCDWebServerBodyReaderCompletionBlock)(NSData* data, NSError* _Nullable error);
/**
* This protocol is used by the GCDWebServerConnection to communicate with
* the GCDWebServerResponse and read the HTTP body data to send.
*
* Note that multiple GCDWebServerBodyReader objects can be chained together
* internally e.g. to automatically apply gzip encoding to the content before
* passing it on to the GCDWebServerResponse.
*
* @warning These methods can be called on any GCD thread.
*/
@protocol GCDWebServerBodyReader <NSObject>
@required
/**
* This method is called before any body data is sent.
*
* It should return YES on success or NO on failure and set the "error" argument
* which is guaranteed to be non-NULL.
*/
- (BOOL)open:(NSError**)error;
/**
* This method is called whenever body data is sent.
*
* It should return a non-empty NSData if there is body data available,
* or an empty NSData there is no more body data, or nil on error and set
* the "error" argument which is guaranteed to be non-NULL.
*/
- (nullable NSData*)readData:(NSError**)error;
/**
* This method is called after all body data has been sent.
*/
- (void)close;
@optional
/**
* If this method is implemented, it will be preferred over -readData:.
*
* It must call the passed block when data is available, passing a non-empty
* NSData if there is body data available, or an empty NSData there is no more
* body data, or nil on error and pass an NSError along.
*/
- (void)asyncReadDataWithCompletion:(GCDWebServerBodyReaderCompletionBlock)block;
@end
/**
* The GCDWebServerResponse class is used to wrap a single HTTP response.
* It is instantiated by the handler of the GCDWebServer that handled the request.
* If a body is present, the methods from the GCDWebServerBodyReader protocol
* will be called by the GCDWebServerConnection to send it.
*
* The default implementation of the GCDWebServerBodyReader protocol
* on the class simply returns an empty body.
*
* @warning GCDWebServerResponse instances can be created and used on any GCD thread.
*/
@interface GCDWebServerResponse : NSObject <GCDWebServerBodyReader>
/**
* Sets the content type for the body of the response.
*
* The default value is nil i.e. the response has no body.
*
* @warning This property must be set if a body is present.
*/
@property(nonatomic, copy, nullable) NSString* contentType;
/**
* Sets the content length for the body of the response. If a body is present
* but this property is set to "NSUIntegerMax", this means the length of the body
* cannot be known ahead of time. Chunked transfer encoding will be
* automatically enabled by the GCDWebServerConnection to comply with HTTP/1.1
* specifications.
*
* The default value is "NSUIntegerMax" i.e. the response has no body or its length
* is undefined.
*/
@property(nonatomic) NSUInteger contentLength;
/**
* Sets the HTTP status code for the response.
*
* The default value is 200 i.e. "OK".
*/
@property(nonatomic) NSInteger statusCode;
/**
* Sets the caching hint for the response using the "Cache-Control" header.
* This value is expressed in seconds.
*
* The default value is 0 i.e. "no-cache".
*/
@property(nonatomic) NSUInteger cacheControlMaxAge;
/**
* Sets the last modified date for the response using the "Last-Modified" header.
*
* The default value is nil.
*/
@property(nonatomic, nullable) NSDate* lastModifiedDate;
/**
* Sets the ETag for the response using the "ETag" header.
*
* The default value is nil.
*/
@property(nonatomic, copy, nullable) NSString* eTag;
/**
* Enables gzip encoding for the response body.
*
* The default value is NO.
*
* @warning Enabling gzip encoding will remove any "Content-Length" header
* since the length of the body is not known anymore. The client will still
* be able to determine the body length when connection is closed per
* HTTP/1.1 specifications.
*/
@property(nonatomic, getter=isGZipContentEncodingEnabled) BOOL gzipContentEncodingEnabled;
/**
* Creates an empty response.
*/
+ (instancetype)response;
/**
* This method is the designated initializer for the class.
*/
- (instancetype)init;
/**
* Sets an additional HTTP header on the response.
* Pass a nil value to remove an additional header.
*
* @warning Do not attempt to override the primary headers used
* by GCDWebServerResponse like "Content-Type", "ETag", etc...
*/
- (void)setValue:(nullable NSString*)value forAdditionalHeader:(NSString*)header;
/**
* Convenience method that checks if the contentType property is defined.
*/
- (BOOL)hasBody;
@end
@interface GCDWebServerResponse (Extensions)
/**
* Creates a empty response with a specific HTTP status code.
*/
+ (instancetype)responseWithStatusCode:(NSInteger)statusCode;
/**
* Creates an HTTP redirect response to a new URL.
*/
+ (instancetype)responseWithRedirect:(NSURL*)location permanent:(BOOL)permanent;
/**
* Initializes an empty response with a specific HTTP status code.
*/
- (instancetype)initWithStatusCode:(NSInteger)statusCode;
/**
* Initializes an HTTP redirect response to a new URL.
*/
- (instancetype)initWithRedirect:(NSURL*)location permanent:(BOOL)permanent;
@end
NS_ASSUME_NONNULL_END
@@ -0,0 +1,284 @@
/*
Copyright (c) 2012-2015, Pierre-Olivier Latour
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* The name of Pierre-Olivier Latour may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL PIERRE-OLIVIER LATOUR BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#if !__has_feature(objc_arc)
#error GCDWebServer requires ARC
#endif
#import <zlib.h>
#import "GCDWebServerPrivate.h"
#define kZlibErrorDomain @"ZlibErrorDomain"
#define kGZipInitialBufferSize (256 * 1024)
@interface GCDWebServerBodyEncoder : NSObject <GCDWebServerBodyReader>
@end
@interface GCDWebServerGZipEncoder : GCDWebServerBodyEncoder
@end
@implementation GCDWebServerBodyEncoder {
GCDWebServerResponse* __unsafe_unretained _response;
id<GCDWebServerBodyReader> __unsafe_unretained _reader;
}
- (instancetype)initWithResponse:(GCDWebServerResponse* _Nonnull)response reader:(id<GCDWebServerBodyReader> _Nonnull)reader {
if ((self = [super init])) {
_response = response;
_reader = reader;
}
return self;
}
- (BOOL)open:(NSError**)error {
return [_reader open:error];
}
- (NSData*)readData:(NSError**)error {
return [_reader readData:error];
}
- (void)close {
[_reader close];
}
@end
@implementation GCDWebServerGZipEncoder {
z_stream _stream;
BOOL _finished;
}
- (instancetype)initWithResponse:(GCDWebServerResponse* _Nonnull)response reader:(id<GCDWebServerBodyReader> _Nonnull)reader {
if ((self = [super initWithResponse:response reader:reader])) {
response.contentLength = NSUIntegerMax; // Make sure "Content-Length" header is not set since we don't know it
[response setValue:@"gzip" forAdditionalHeader:@"Content-Encoding"];
}
return self;
}
- (BOOL)open:(NSError**)error {
int result = deflateInit2(&_stream, Z_DEFAULT_COMPRESSION, Z_DEFLATED, 15 + 16, 8, Z_DEFAULT_STRATEGY);
if (result != Z_OK) {
if (error) {
*error = [NSError errorWithDomain:kZlibErrorDomain code:result userInfo:nil];
}
return NO;
}
if (![super open:error]) {
deflateEnd(&_stream);
return NO;
}
return YES;
}
- (NSData*)readData:(NSError**)error {
NSMutableData* encodedData;
if (_finished) {
encodedData = [[NSMutableData alloc] init];
} else {
encodedData = [[NSMutableData alloc] initWithLength:kGZipInitialBufferSize];
if (encodedData == nil) {
GWS_DNOT_REACHED();
return nil;
}
NSUInteger length = 0;
do {
NSData* data = [super readData:error];
if (data == nil) {
return nil;
}
_stream.next_in = (Bytef*)data.bytes;
_stream.avail_in = (uInt)data.length;
while (1) {
NSUInteger maxLength = encodedData.length - length;
_stream.next_out = (Bytef*)((char*)encodedData.mutableBytes + length);
_stream.avail_out = (uInt)maxLength;
int result = deflate(&_stream, data.length ? Z_NO_FLUSH : Z_FINISH);
if (result == Z_STREAM_END) {
_finished = YES;
} else if (result != Z_OK) {
if (error) {
*error = [NSError errorWithDomain:kZlibErrorDomain code:result userInfo:nil];
}
return nil;
}
length += maxLength - _stream.avail_out;
if (_stream.avail_out > 0) {
break;
}
encodedData.length = 2 * encodedData.length; // zlib has used all the output buffer so resize it and try again in case more data is available
}
GWS_DCHECK(_stream.avail_in == 0);
} while (length == 0); // Make sure we don't return an empty NSData if not in finished state
encodedData.length = length;
}
return encodedData;
}
- (void)close {
deflateEnd(&_stream);
[super close];
}
@end
@implementation GCDWebServerResponse {
BOOL _opened;
NSMutableArray* _encoders;
id<GCDWebServerBodyReader> __unsafe_unretained _reader;
}
+ (instancetype)response {
return [[[self class] alloc] init];
}
- (instancetype)init {
if ((self = [super init])) {
_contentType = nil;
_contentLength = NSUIntegerMax;
_statusCode = kGCDWebServerHTTPStatusCode_OK;
_cacheControlMaxAge = 0;
_additionalHeaders = [[NSMutableDictionary alloc] init];
_encoders = [[NSMutableArray alloc] init];
}
return self;
}
- (void)setValue:(NSString*)value forAdditionalHeader:(NSString*)header {
[_additionalHeaders setValue:value forKey:header];
}
- (BOOL)hasBody {
return _contentType ? YES : NO;
}
- (BOOL)usesChunkedTransferEncoding {
return (_contentType != nil) && (_contentLength == NSUIntegerMax);
}
- (BOOL)open:(NSError**)error {
return YES;
}
- (NSData*)readData:(NSError**)error {
return [NSData data];
}
- (void)close {
;
}
- (void)prepareForReading {
_reader = self;
if (_gzipContentEncodingEnabled) {
GCDWebServerGZipEncoder* encoder = [[GCDWebServerGZipEncoder alloc] initWithResponse:self reader:_reader];
[_encoders addObject:encoder];
_reader = encoder;
}
}
- (BOOL)performOpen:(NSError**)error {
GWS_DCHECK(_contentType);
GWS_DCHECK(_reader);
if (_opened) {
GWS_DNOT_REACHED();
return NO;
}
_opened = YES;
return [_reader open:error];
}
- (void)performReadDataWithCompletion:(GCDWebServerBodyReaderCompletionBlock)block {
GWS_DCHECK(_opened);
if ([_reader respondsToSelector:@selector(asyncReadDataWithCompletion:)]) {
[_reader asyncReadDataWithCompletion:[block copy]];
} else {
NSError* error = nil;
NSData* data = [_reader readData:&error];
block(data, error);
}
}
- (void)performClose {
GWS_DCHECK(_opened);
[_reader close];
}
- (NSString*)description {
NSMutableString* description = [NSMutableString stringWithFormat:@"Status Code = %i", (int)_statusCode];
if (_contentType) {
[description appendFormat:@"\nContent Type = %@", _contentType];
}
if (_contentLength != NSUIntegerMax) {
[description appendFormat:@"\nContent Length = %lu", (unsigned long)_contentLength];
}
[description appendFormat:@"\nCache Control Max Age = %lu", (unsigned long)_cacheControlMaxAge];
if (_lastModifiedDate) {
[description appendFormat:@"\nLast Modified Date = %@", _lastModifiedDate];
}
if (_eTag) {
[description appendFormat:@"\nETag = %@", _eTag];
}
if (_additionalHeaders.count) {
[description appendString:@"\n"];
for (NSString* header in [[_additionalHeaders allKeys] sortedArrayUsingSelector:@selector(compare:)]) {
[description appendFormat:@"\n%@: %@", header, [_additionalHeaders objectForKey:header]];
}
}
return description;
}
@end
@implementation GCDWebServerResponse (Extensions)
+ (instancetype)responseWithStatusCode:(NSInteger)statusCode {
return [[self alloc] initWithStatusCode:statusCode];
}
+ (instancetype)responseWithRedirect:(NSURL*)location permanent:(BOOL)permanent {
return [[self alloc] initWithRedirect:location permanent:permanent];
}
- (instancetype)initWithStatusCode:(NSInteger)statusCode {
if ((self = [self init])) {
self.statusCode = statusCode;
}
return self;
}
- (instancetype)initWithRedirect:(NSURL*)location permanent:(BOOL)permanent {
if ((self = [self init])) {
self.statusCode = permanent ? kGCDWebServerHTTPStatusCode_MovedPermanently : kGCDWebServerHTTPStatusCode_TemporaryRedirect;
[self setValue:[location absoluteString] forAdditionalHeader:@"Location"];
}
return self;
}
@end