Host library for controlling a WiConnect enabled Wi-Fi module.
Dependents: wiconnect-ota_example wiconnect-web_setup_example wiconnect-test-console wiconnect-tcp_server_example ... more
Diff: SocketInterface.h
- Revision:
- 28:3c52f578708a
- Parent:
- 27:b63f5a9cdefa
- Child:
- 29:b6af04b77a56
--- a/SocketInterface.h Thu Oct 23 15:21:50 2014 -0700 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,345 +0,0 @@ -/** - * ACKme WiConnect Host Library is licensed under the BSD licence: - * - * Copyright (c)2014 ACKme Networks. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. 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. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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. - */ -#pragma once - -#include "Wiconnect.h" -#include "types/WiconnectSocket.h" -#include "types/SocketIrqHandlerMap.h" - - -/** - * @namespace wiconnect - */ -namespace wiconnect { - - -/** - * @ingroup api_socket_types - * - * @brief The provides an interface for creating TCP/UDP/TLS/HTTP client sockets. - * A client socket connects to a remote server. - * - * @note This class is an interface to the Wiconnect class. It should never be - * independently instantiated or the parent of another class. - */ -class SocketInterface -{ -public: - /** - * @ingroup api_socket_misc - * - * @brief Close all opened sockets. - * - * @note This closes all open sockets on the MODULE side. - * Socket objects on the HOST side will be still open until - * issuing a read/write command to the module using the socket handle. - * - * @return Result of method. See @ref WiconnectResult - */ - WiconnectResult closeAllSockets(); - - /** - * @ingroup api_socket_misc - * - * @brief Register a host pin as an external interrupt. When the external interrupt is - * triggered, the supplied callback is executed. - * - * This should be called before calling one of the connect methods below - * with an irqPin parameter. - * - * Basically how this works is: - * 1. The supplied irqPin is configured as an external interrupt pin. - * 2. A connection is opened and configured with the same irqPin. This - * irqPin physically connected to a GPIO on the WiFi module. - * 3. When the WiFi module has data to send to the HOST it asserts the irqPin. - * 4. The irqPin interrupt executes and calls the supplied handler. - * 5. The handler should notify the HOST that the given irqPin has triggered - * and have the associated socket read data from the module. - * - * @note arg1 of the handler contains the irqPin - * - * - * @param[in] irqPin The HOST pin to configure as an external interrupt. - * This pin should be physically connected to a module GPIO. - * @param[in] handler Callback to be executed with the external irqPin interrupt triggers - * @return Result of method. See @ref WiconnectResult - */ - WiconnectResult registerSocketIrqHandler(Pin irqPin, const Callback &handler); - - /** - * @ingroup api_socket_misc - * - * @brief Unregister a previously registered IRQ pin. - * - * This disables the given irqPin as an external interrupt. - * Refer to registerSocketIrqHandler() for more information. - * - * @param[in] irqPin The HOST pin to unregister - * @return Result of method. See @ref WiconnectResult - */ - WiconnectResult unregisterSocketIrqHandler(Pin irqPin); - - - /** - * @ingroup api_socket_misc - * - * @brief Connect to remote server. - * - * This is the base method used by all the other connect methods. - * - * @param[out] socket @ref WiconnectSocket object of opened connection. - * @param[in] type The @ref SocketType of connection to open - * @param[in] host The host/IP address of the remote server - * @param[in] remortPort The port of the remote server - * @param[in] localPort The port of the module's side of the connection - * @param[in] args Depedent on the connection type - * @param[in] irqPin Data available external interrupt pin. See registerSocketIrqHandler() for more info - * @return Result of method. See @ref WiconnectResult - */ - WiconnectResult connect(WiconnectSocket &socket, SocketType type, const char *host, uint16_t remortPort, uint16_t localPort, const void *args, Pin irqPin); - - - // ------------------------------------------------------------------------ - - /** - * @ingroup api_socket_tcp - * - * @brief Connect to remote TCP server. - * - * @param[out] socket TCP @ref WiconnectSocket object of opened connection. - * @param[in] host The host/IP address of the remote TCP server - * @param[in] remortPort The port of the remote server - * @param[in] irqPin Optional, Data available external interrupt pin. See registerSocketIrqHandler() for more info - * @return Result of method. See @ref WiconnectResult - */ - WiconnectResult tcpConnect(WiconnectSocket &socket, const char *host, uint16_t remortPort, Pin irqPin = PIN_NC); - - - // ------------------------------------------------------------------------ - - /** - * @ingroup api_socket_tcp - * - * @brief Start internal TCP server and listen on specified port. - * - * @param[in] listeningPort The local port the server should listen on - * @param[in] maxClients Optional, the maximum simultaneous connected clients, 0 is default, 1-8 valid range - * @param[in] irqPin Optional, Data available external interrupt pin. See registerSocketIrqHandler() for more info - * @return Result of method. See @ref WiconnectResult - */ - WiconnectResult tcpListen(uint16_t listeningPort, int maxClients = 0, Pin irqPin = PIN_NC); - - - // ------------------------------------------------------------------------ - - /** - * @ingroup api_socket_tcp - * - * @brief Wait for next client to connect to TCP server. - * - * @param[in] socket Socket to connected client - * @param[in] timeoutMs Optional, specifiy maximum amount of time in ms to wait for a client - * @return Result of method. See @ref WiconnectResult - */ - WiconnectResult tcpAccept(WiconnectSocket &socket, int timeoutMs = WICONNECT_WAIT_FOREVER); - - - // ------------------------------------------------------------------------ - - /** - * @ingroup api_socket_tcp - * - * @brief Stop TCP server from listening on port. Close all connected clients. - * - * @return Result of method. See @ref WiconnectResult - */ - WiconnectResult tcpServerStop(void); - - - // ------------------------------------------------------------------------ - - /** - * @ingroup api_socket_tls - * - * @brief Connect to remote TLS server. - * - * @param[out] socket TLS @ref WiconnectSocket object of opened connection. - * @param[in] host The host/IP address of the remote TLS server - * @param[in] remortPort The port of the remote server - * @param[in] certFilename Optional, filename of certificate on module's file system - * @param[in] irqPin Optional, Data available external interrupt pin. See registerSocketIrqHandler() for more info - * @return Result of method. See @ref WiconnectResult - */ - WiconnectResult tlsConnect(WiconnectSocket &socket, const char *host, uint16_t remortPort, const char *certFilename = NULL, Pin irqPin = PIN_NC); - - - // ------------------------------------------------------------------------ - - /** - * @ingroup api_socket_udp - * - * @brief Connect to remote UDP server. - * - * @param[out] socket UDP @ref WiconnectSocket object of opened connection. - * @param[in] host The host/IP address of the remote UDP server - * @param[in] remortPort The port of the remote server - * @param[in] localPort Optional, port of module's side of the connection - * @param[in] irqPin Optional, Data available external interrupt pin. See registerSocketIrqHandler() for more info - * @return Result of method. See @ref WiconnectResult - */ - WiconnectResult udpConnect(WiconnectSocket &socket, const char *host, uint16_t remortPort, uint16_t localPort = SOCKET_ANY_PORT, Pin irqPin = PIN_NC); - - - // ------------------------------------------------------------------------ - - /** - * @ingroup api_socket_http - * - * @brief Connect to remote HTTP server. - * - * This is the base method for the other HTTP methods. - * - * @section secure_http_connection Secure HTTP - * Each HTTP method is able to connect to a secure HTTP server. To do this, - * the URL string parameter must start with 'https://' - * To connect to a secure HTTP server a TLS certificate is needed. The certificate - * is specified in the certFilename parameter of the method (or @ref HttpSocketArgs parameter). - * This is the filename of an existing certificate on the module file system. - * - * @note If the URL starts with 'https://' and no certificate filename is specified, - * the module's default certificate is used. - * - * @param[out] socket HTTP @ref WiconnectSocket object of opened connection. - * @param[in] url URL of HTTP request - * @param[in] args Configuration @ref HttpSocketArgs for HTTP connection - * @return Result of method. See @ref WiconnectResult - */ - WiconnectResult httpConnect(WiconnectSocket &socket, const char *url, const HttpSocketArgs *args); - - /** - * @ingroup api_socket_http - * - * @brief Issue HTTP GET Request - * - * This method has the open to only 'open' the connection (disabled by default). This means a connection - * to the remote HTTP server is opened, but the HTTP request isn't issued. This - * allow for addition data to be added to the request. For instance, use httpAddHeader() to add - * additional headers to the request. - * Use httpGetStatus() to issue the HTTP request and receive the HTTP response. - * - * @param[out] socket HTTP @ref WiconnectSocket object of opened connection. - * @param[in] url URL of HTTP GET request - * @param[in] openOnly Optional, if TRUE this will only open a connection to the server (it won't issue the request) - * @param[in] certFilename Optional, filename of existing TLS certificate on module's file system. See @ref secure_http_connection - * @return Result of method. See @ref WiconnectResult - */ - WiconnectResult httpGet(WiconnectSocket &socket, const char *url, bool openOnly = false, const char *certFilename = NULL); - - /** - * @ingroup api_socket_http - * - * @brief Issue HTTP POST Request - * - * This method has the open to only 'open' the connection which enabled by default. This means a connection - * to the remote HTTP server is opened, but the HTTP request isn't issued. This - * allow for addition data to be added to the request. Use the returned @ref WiconnectSocket object's 'write' methods - * to add POST data to the request. - * When all POST data has been written, use httpGetStatus() to issue the HTTP request and receive the HTTP response. - * - * @param[out] socket HTTP @ref WiconnectSocket object of opened connection. - * @param[in] url URL of HTTP POST request - * @param[in] contextType The value to go into the 'content-type' HTTP header (e.g. 'application/json') - * @param[in] openOnly Optional, if FALSE this will immediately issue the POST request. - * @param[in] certFilename Optional, filename of existing TLS certificate on module's file system. See @ref secure_http_connection - * @return Result of method. See @ref WiconnectResult - */ - WiconnectResult httpPost(WiconnectSocket &socket, const char *url, const char *contextType, bool openOnly = true, const char *certFilename = NULL); - - /** - * @ingroup api_socket_http - * - * @brief Issue HTTP HEAD Request - * - * @param[out] socket HTTP @ref WiconnectSocket object of opened connection. - * @param[in] url URL of HTTP HEAD request - * @param[in] certFilename Optional, filename of existing TLS certificate on module's file system. See @ref secure_http_connection - * @return Result of method. See @ref WiconnectResult - */ - WiconnectResult httpHead(WiconnectSocket &socket, const char *url, const char *certFilename = NULL); - - /** - * @ingroup api_socket_http - * - * @brief Add HTTP header key/value pair to opened HTTP request. - * - * To use this function, the supplied @ref WiconnectSocket parameter must have been created - * using either httpGet() or httpPost() and the 'openOnly' parameter TRUE. - * - * This will add additional header to the HTTP request. - * - * Use httpGetStatus() to issue the request. - * - * @param[in] socket Opened socket to add additonal HTTP header - * @param[in] key Header key (e.g. 'content-type') - * @param[in] value Header value (e.g. 'application/json') - * @return Result of method. See @ref WiconnectResult - */ - WiconnectResult httpAddHeader(WiconnectSocket &socket, const char *key, const char *value); - - /** - * @ingroup api_socket_http - * - * @brief Get the HTTP status code from HTTP request. - * - * This may be used to either issue an HTTP request of an opened HTTP connection - * or return the status code of a request already issued. - * - * @param[in] socket Opened socket to get http response status code - * @param[out] statusCodePtr Pointer to uint32 to hold http status code - * @return Result of method. See @ref WiconnectResult - */ - WiconnectResult httpGetStatus(WiconnectSocket &socket, uint32_t *statusCodePtr); - -protected: - SocketInterface(Wiconnect *wiconnect); - ~SocketInterface(); - - SocketIrqHandlerMap irqHandlers; - - bool serverConnectedClientList[WICONNECT_MAX_SOCKETS]; - - WiconnectResult pollForServerClient(uint8_t *handle = NULL, uint16_t *localPort = NULL, uint16_t *remotePort = NULL, uint32_t *ipAddress = NULL); - - void socketClosedCallback(const WiconnectSocket *socket); - -private: - Wiconnect *wiconnect; -}; - -}