/* * Copyright (c) 2008, 2009, 2010, 2011, 2012 * Jonathan Schleifer <js@webkeks.org> * * All rights reserved. * * This file is part of ObjFW. It may be distributed under the terms of the * Q Public License 1.0, which can be found in the file LICENSE.QPL included in * the packaging of this file. * * Alternatively, it may be distributed under the terms of the GNU General * Public License, either version 2 or 3, which can be found in the file * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this * file. */ #import "OFObject.h" @class OFString; @class OFDictionary; @class OFURL; @class OFHTTPRequest; @class OFHTTPRequestResult; @class OFTCPSocket; @class OFDataArray; typedef enum of_http_request_type_t { OF_HTTP_REQUEST_TYPE_GET, OF_HTTP_REQUEST_TYPE_POST, OF_HTTP_REQUEST_TYPE_HEAD } of_http_request_type_t; /** * \brief A delegate for OFHTTPRequests. */ #ifndef OF_HTTP_REQUEST_M @protocol OFHTTPRequestDelegate <OFObject> #else @protocol OFHTTPRequestDelegate #endif #ifdef OF_HAVE_OPTIONAL_PROTOCOLS @optional #endif /** * \brief A callback which is called when an OFHTTPRequest creates a socket. * * This is useful if the connection is using HTTPS and the server requires a * client certificate. This callback can then be used to tell the TLS socket * about the certificate. Another use case is to tell the socket about a SOCKS5 * proxy it should use for this connection. * * \param request The OFHTTPRequest that created a socket * \param socket The socket created by the OFHTTPRequest */ - (void)request: (OFHTTPRequest*)request didCreateSocket: (OFTCPSocket*)socket; /** * \brief A callback which is called when an OFHTTPRequest received headers. * * \param request The OFHTTPRequest which received the headers * \param headers The headers received * \param statusCode The status code received */ - (void)request: (OFHTTPRequest*)request didReceiveHeaders: (OFDictionary*)headers withStatusCode: (int)statusCode; /** * \brief A callback which is called when an OFHTTPRequest received data. * * This is useful for example if you want to update a status display. * * \param request The OFHTTPRequest which received data * \param data The data the OFHTTPRequest received * \param length The length of the data received, in bytes */ - (void)request: (OFHTTPRequest*)request didReceiveData: (const char*)data withLength: (size_t)length; /** * \brief A callback which is called when an OFHTTPRequest will follow a * redirect. * * If you want to get the headers and data for each redirect, set the number of * redirects to 0 and perform a new OFHTTPRequest for each redirect. However, * this callback will not be called then and you have to look at the status code * to detect a redirect. * * This callback will only be called if the OFHTTPRequest will follow a * redirect. If the maximum number of redirects has been reached already, this * callback will not be called. * * \param request The OFHTTPRequest which will follow a redirect * \param URL The URL to which it will follow a redirect * \return A boolean whether the OFHTTPRequest should follow the redirect */ - (BOOL)request: (OFHTTPRequest*)request willFollowRedirectTo: (OFURL*)URL; @end /** * \brief A class for storing and performing HTTP requests. */ @interface OFHTTPRequest: OFObject { OFURL *URL; of_http_request_type_t requestType; OFString *queryString; OFDictionary *headers; BOOL redirectsFromHTTPSToHTTPAllowed; id <OFHTTPRequestDelegate> delegate; BOOL storesData; } #ifdef OF_HAVE_PROPERTIES @property (copy) OFURL *URL; @property of_http_request_type_t requestType; @property (copy) OFString *queryString; @property (copy) OFDictionary *headers; @property BOOL redirectsFromHTTPSToHTTPAllowed; @property (assign) id <OFHTTPRequestDelegate> delegate; @property BOOL storesData; #endif /** * \brief Creates a new OFHTTPRequest. * * \return A new, autoreleased OFHTTPRequest */ + request; /** * \brief Creates a new OFHTTPRequest with the specified URL. * * \param URL The URL for the request * \return A new, autoreleased OFHTTPRequest */ + requestWithURL: (OFURL*)URL; /** * \brief Initializes an already allocated OFHTTPRequest with the specified URL. * * \param URL The URL for the request * \return An initialized OFHTTPRequest */ - initWithURL: (OFURL*)URL; /** * \brief Sets the URL of the HTTP request. * * \param URL The URL of the HTTP request */ - (void)setURL: (OFURL*)URL; /** * \brief Returns the URL of the HTTP request. * * \return The URL of the HTTP request */ - (OFURL*)URL; /** * \brief Sets the request type of the HTTP request. * * \param requestType The request type of the HTTP request */ - (void)setRequestType: (of_http_request_type_t)requestType; /** * \brief Returns the request type of the HTTP request. * * \return The request type of the HTTP request */ - (of_http_request_type_t)requestType; /** * \brief Sets the query string of the HTTP request. * * \param queryString The query string of the HTTP request */ - (void)setQueryString: (OFString*)queryString; /** * \brief Returns the query string of the HTTP request. * * \return The query string of the HTTP request */ - (OFString*)queryString; /** * \brief Sets a dictionary with headers for the HTTP request. * * \param headers A dictionary with headers for the HTTP request */ - (void)setHeaders: (OFDictionary*)headers; /** * \brief Retrusn a dictionary with headers for the HTTP request. * * \return A dictionary with headers for the HTTP request. */ - (OFDictionary*)headers; /** * \brief Sets whether redirects from HTTPS to HTTP are allowed. * * \param allowed Whether redirects from HTTPS to HTTP are allowed */ - (void)setRedirectsFromHTTPSToHTTPAllowed: (BOOL)allowed; /** * \brief Returns whether redirects from HTTPS to HTTP will be allowed * * \return Whether redirects from HTTPS to HTTP will be allowed */ - (BOOL)redirectsFromHTTPSToHTTPAllowed; /** * \brief Sets the delegate of the HTTP request. * * \param delegate The delegate of the HTTP request */ - (void)setDelegate: (id <OFHTTPRequestDelegate>)delegate; /** * \brief Returns the delegate of the HTTP reqeust. * * \return The delegate of the HTTP request */ - (id <OFHTTPRequestDelegate>)delegate; /** * \brief Sets whether an OFDataArray with the data should be created. * * Setting this to NO is only useful if you are using the delegate to handle the * data. * * \param storesData Whether to store the data in an OFDataArray */ - (void)setStoresData: (BOOL)storesData; /** * \brief Returns whether an OFDataArray with the date should be created. * * \return Whether an OFDataArray with the data should be created */ - (BOOL)storesData; /** * \brief Performs the HTTP request and returns an OFHTTPRequestResult. * * \return An OFHTTPRequestResult with the result of the HTTP request */ - (OFHTTPRequestResult*)perform; /** * \brief Performs the HTTP request and returns an OFHTTPRequestResult. * * \param redirects The maximum number of redirects after which no further * attempt is done to follow the redirect, but instead the * redirect is returned as an OFHTTPRequest * \return An OFHTTPRequestResult with the result of the HTTP request */ - (OFHTTPRequestResult*)performWithRedirects: (size_t)redirects; @end /** * \brief A class for storing the result of an HTTP request. */ @interface OFHTTPRequestResult: OFObject { short statusCode; OFDataArray *data; OFDictionary *headers; } #ifdef OF_HAVE_PROPERTIES @property (readonly) short statusCode; @property (readonly, copy) OFDictionary *headers; @property (readonly, retain) OFDataArray *data; #endif - initWithStatusCode: (short)status headers: (OFDictionary*)headers data: (OFDataArray*)data; /** * \brief Returns the state code of the result of the HTTP request. * * \return The status code of the result of the HTTP request */ - (short)statusCode; /** * \brief Returns the headers of the result of the HTTP request. * * \return The headers of the result of the HTTP request */ - (OFDictionary*)headers; /** * \brief Returns the data received for the HTTP request. * * Returns nil if storesData was set to NO. * * \return The data received for the HTTP request */ - (OFDataArray*)data; @end @interface OFObject (OFHTTPRequestDelegate) <OFHTTPRequestDelegate> @end extern Class of_http_request_tls_socket_class;