Rod Coleman / lwip-mbed-2010

Port of LwIP performed by Ralf in 2010. Not recommended for use with recent mbed libraries, but good demos of raw LwIP possible

Dependents:   LwIP_raw_API_serverExample tiny-dtls

HTTPServer/HTTPServer.h@0:0791c1fece8e, 2012-09-18 (annotated)

Committer:
RodColeman
Date:
Tue Sep 18 14:41:24 2012 +0000
Revision:
0:0791c1fece8e
[mbed] converted /Eth_TCP_Wei_Server/lwip

Who changed what in which revision?

UserRevisionLine numberNew contents of line
RodColeman 0:0791c1fece8e 1 #ifndef HTTPSERVER_H
RodColeman 0:0791c1fece8e 2 #define HTTPSERVER_H
RodColeman 0:0791c1fece8e 3
RodColeman 0:0791c1fece8e 4 #include "TCPConnection.h"
RodColeman 0:0791c1fece8e 5 #include "TCPListener.h"
RodColeman 0:0791c1fece8e 6 #include "NetServer.h"
RodColeman 0:0791c1fece8e 7
RodColeman 0:0791c1fece8e 8 #include <map>
RodColeman 0:0791c1fece8e 9 #include <set>
RodColeman 0:0791c1fece8e 10 #include <list>
RodColeman 0:0791c1fece8e 11
RodColeman 0:0791c1fece8e 12 #define HTTP_MAX_EMPTYPOLLS 100
RodColeman 0:0791c1fece8e 13 #define GET 4
RodColeman 0:0791c1fece8e 14 #define POST 5
RodColeman 0:0791c1fece8e 15
RodColeman 0:0791c1fece8e 16 //extern unsigned int gconnections;
RodColeman 0:0791c1fece8e 17
RodColeman 0:0791c1fece8e 18 using namespace std;
RodColeman 0:0791c1fece8e 19
RodColeman 0:0791c1fece8e 20 namespace mbed {
RodColeman 0:0791c1fece8e 21
RodColeman 0:0791c1fece8e 22 class HTTPServer;
RodColeman 0:0791c1fece8e 23 class HTTPHandler;
RodColeman 0:0791c1fece8e 24 class HTTPConnection;
RodColeman 0:0791c1fece8e 25
RodColeman 0:0791c1fece8e 26 /**
RodColeman 0:0791c1fece8e 27 * A simple HASH function to reduce the size of stored Header Fields
RodColeman 0:0791c1fece8e 28 * TODO: Make the Hash case insensetive.
RodColeman 0:0791c1fece8e 29 */
RodColeman 0:0791c1fece8e 30 unsigned int hash(unsigned char *str);
RodColeman 0:0791c1fece8e 31
RodColeman 0:0791c1fece8e 32 /**
RodColeman 0:0791c1fece8e 33 * The Status of an HTTP Request
RodColeman 0:0791c1fece8e 34 * Nedded for HTTPHandler subclasses to define there reults in the HTTPHandler:init Method.
RodColeman 0:0791c1fece8e 35 */
RodColeman 0:0791c1fece8e 36 enum HTTPStatus {
RodColeman 0:0791c1fece8e 37 HTTP_OK = 200,
RodColeman 0:0791c1fece8e 38 HTTP_BadRequest = 400,
RodColeman 0:0791c1fece8e 39 HTTP_Unauthorized = 401,
RodColeman 0:0791c1fece8e 40 HTTP_Forbidden = 403,
RodColeman 0:0791c1fece8e 41 HTTP_NotFound = 404,
RodColeman 0:0791c1fece8e 42 HTTP_MethodNotAllowed = 405,
RodColeman 0:0791c1fece8e 43 HTTP_InternalServerError = 500,
RodColeman 0:0791c1fece8e 44 HTTP_NotImplemented = 501,
RodColeman 0:0791c1fece8e 45 };
RodColeman 0:0791c1fece8e 46
RodColeman 0:0791c1fece8e 47 /**
RodColeman 0:0791c1fece8e 48 * The result of a chunk of data used for the HTTPHandler Methodes data and send
RodColeman 0:0791c1fece8e 49 */
RodColeman 0:0791c1fece8e 50 enum HTTPHandle {
RodColeman 0:0791c1fece8e 51 /** Execution Succeeded but more data expected. */
RodColeman 0:0791c1fece8e 52 HTTP_Success = 600,
RodColeman 0:0791c1fece8e 53
RodColeman 0:0791c1fece8e 54 /** Running out of memory waiting for memory */
RodColeman 0:0791c1fece8e 55 HTTP_SenderMemory = 601,
RodColeman 0:0791c1fece8e 56
RodColeman 0:0791c1fece8e 57
RodColeman 0:0791c1fece8e 58 /** Execution Succeeded and no more data expected. */
RodColeman 0:0791c1fece8e 59 HTTP_SuccessEnded = 700,
RodColeman 0:0791c1fece8e 60
RodColeman 0:0791c1fece8e 61 /** Execution failed. Close conection*/
RodColeman 0:0791c1fece8e 62 HTTP_Failed = 701,
RodColeman 0:0791c1fece8e 63
RodColeman 0:0791c1fece8e 64 /** This module will deliver the data. */
RodColeman 0:0791c1fece8e 65 HTTP_Deliver = 800,
RodColeman 0:0791c1fece8e 66
RodColeman 0:0791c1fece8e 67 /** This module has add header fields to the request. */
RodColeman 0:0791c1fece8e 68 HTTP_AddFields = 801,
RodColeman 0:0791c1fece8e 69 };
RodColeman 0:0791c1fece8e 70
RodColeman 0:0791c1fece8e 71 /**
RodColeman 0:0791c1fece8e 72 * A parent object for a data storage container for all HTTPHandler objects.
RodColeman 0:0791c1fece8e 73 */
RodColeman 0:0791c1fece8e 74 class HTTPData {
RodColeman 0:0791c1fece8e 75 public:
RodColeman 0:0791c1fece8e 76 HTTPData() {}
RodColeman 0:0791c1fece8e 77 virtual ~HTTPData() {}
RodColeman 0:0791c1fece8e 78 };
RodColeman 0:0791c1fece8e 79
RodColeman 0:0791c1fece8e 80 /**
RodColeman 0:0791c1fece8e 81 * A HTTPHandler will serve the requested data if there is an object of a
RodColeman 0:0791c1fece8e 82 * child class from HTTPHandler which is registert to an matching prefix.
RodColeman 0:0791c1fece8e 83 * To see how to implement your own HTTPHandler classes have a look at
RodColeman 0:0791c1fece8e 84 * HTTPRPC HTTPStaticPage and HTTPFileSystemHandler.
RodColeman 0:0791c1fece8e 85 */
RodColeman 0:0791c1fece8e 86 class HTTPHandler {
RodColeman 0:0791c1fece8e 87 public:
RodColeman 0:0791c1fece8e 88 HTTPHandler(const char *prefix) : _prefix(prefix) {};
RodColeman 0:0791c1fece8e 89 virtual ~HTTPHandler() {
RodColeman 0:0791c1fece8e 90 delete _prefix;
RodColeman 0:0791c1fece8e 91 };
RodColeman 0:0791c1fece8e 92
RodColeman 0:0791c1fece8e 93 protected:
RodColeman 0:0791c1fece8e 94 /**
RodColeman 0:0791c1fece8e 95 * Register needed header fields by the HTTPServer.
RodColeman 0:0791c1fece8e 96 * Because of memory size the server will throw away all request header fields which are not registert.
RodColeman 0:0791c1fece8e 97 * Register the fields you need in your implementation of this method.
RodColeman 0:0791c1fece8e 98 */
RodColeman 0:0791c1fece8e 99 virtual void reg(HTTPServer *) {};
RodColeman 0:0791c1fece8e 100
RodColeman 0:0791c1fece8e 101 /**
RodColeman 0:0791c1fece8e 102 * This Method returns if you will deliver the requested page or not.
RodColeman 0:0791c1fece8e 103 * It will only executed if the prefix is matched by the URL.
RodColeman 0:0791c1fece8e 104 * If you want to add something to the headerfiles use this method and return HTTP_AddFields. See HTTPFields
RodColeman 0:0791c1fece8e 105 * This would be the right method to implement an Auth Handler.
RodColeman 0:0791c1fece8e 106 */
RodColeman 0:0791c1fece8e 107 virtual HTTPHandle action(HTTPConnection *) const {return HTTP_Deliver;}
RodColeman 0:0791c1fece8e 108
RodColeman 0:0791c1fece8e 109 /**
RodColeman 0:0791c1fece8e 110 * If action returned HTTP_Deliver.
RodColeman 0:0791c1fece8e 111 * This function will be executed and it means your handler will be deliver the requested data.
RodColeman 0:0791c1fece8e 112 * In this method is the right place to allocate the needed space for your request data and to prepare the sended Header.
RodColeman 0:0791c1fece8e 113 */
RodColeman 0:0791c1fece8e 114 virtual HTTPStatus init(HTTPConnection *) const {return HTTP_NotFound;}
RodColeman 0:0791c1fece8e 115
RodColeman 0:0791c1fece8e 116 /**
RodColeman 0:0791c1fece8e 117 * If data from a post request is arrived for an request you accepted this function will be executed with the data.
RodColeman 0:0791c1fece8e 118 * @param data A pointer to the received data.
RodColeman 0:0791c1fece8e 119 * @param len The length of the received data.
RodColeman 0:0791c1fece8e 120 * @return Return an HTTPHandle. For example HTTP_SuccessEnded if you received all your needed data and want to close the conection (normally not the case).
RodColeman 0:0791c1fece8e 121 */
RodColeman 0:0791c1fece8e 122 virtual HTTPHandle data(HTTPConnection *, void *data, int len) const {return HTTP_SuccessEnded;}
RodColeman 0:0791c1fece8e 123
RodColeman 0:0791c1fece8e 124 /**
RodColeman 0:0791c1fece8e 125 * If tere is new space in the sendbuffer this function is executed. You can send maximal Bytes of data.
RodColeman 0:0791c1fece8e 126 * @return Return an HTTPHandle. For example HTTP_SuccessEnded if you send out all your data and you want to close the connection.
RodColeman 0:0791c1fece8e 127 */
RodColeman 0:0791c1fece8e 128 virtual HTTPHandle send(HTTPConnection *, int) const {return HTTP_SuccessEnded;}
RodColeman 0:0791c1fece8e 129
RodColeman 0:0791c1fece8e 130 /**
RodColeman 0:0791c1fece8e 131 * returns the Prefix from the HTTPHandler
RodColeman 0:0791c1fece8e 132 */
RodColeman 0:0791c1fece8e 133 const char *getPrefix() const {return _prefix;}
RodColeman 0:0791c1fece8e 134
RodColeman 0:0791c1fece8e 135 const char *_prefix;
RodColeman 0:0791c1fece8e 136
RodColeman 0:0791c1fece8e 137 friend HTTPServer;
RodColeman 0:0791c1fece8e 138 friend HTTPConnection;
RodColeman 0:0791c1fece8e 139 };
RodColeman 0:0791c1fece8e 140
RodColeman 0:0791c1fece8e 141 /**
RodColeman 0:0791c1fece8e 142 * For every incomming connection we have a HTTPConnection object which will handle the requests of this connection.
RodColeman 0:0791c1fece8e 143 */
RodColeman 0:0791c1fece8e 144 class HTTPConnection : public TCPConnection {
RodColeman 0:0791c1fece8e 145 public:
RodColeman 0:0791c1fece8e 146 /**
RodColeman 0:0791c1fece8e 147 * Constructs a new connection object from a server.
RodColeman 0:0791c1fece8e 148 * It just need the server object to contact the handlers
RodColeman 0:0791c1fece8e 149 * and the tcp connection pcb.
RodColeman 0:0791c1fece8e 150 * @param parent The server which created the connection.
RodColeman 0:0791c1fece8e 151 * @param pcb The pcb object NetServers internal representation of an TCP Connection
RodColeman 0:0791c1fece8e 152 */
RodColeman 0:0791c1fece8e 153 HTTPConnection(HTTPServer *parent, struct tcp_pcb *pcb);
RodColeman 0:0791c1fece8e 154 /**
RodColeman 0:0791c1fece8e 155 * Default destructor. Simple cleanup.
RodColeman 0:0791c1fece8e 156 */
RodColeman 0:0791c1fece8e 157 virtual ~HTTPConnection();
RodColeman 0:0791c1fece8e 158
RodColeman 0:0791c1fece8e 159 /**
RodColeman 0:0791c1fece8e 160 * Get the requested url.
RodColeman 0:0791c1fece8e 161 * Only set if a request ist received.
RodColeman 0:0791c1fece8e 162 */
RodColeman 0:0791c1fece8e 163 char *getURL() const { return _request_url; }
RodColeman 0:0791c1fece8e 164
RodColeman 0:0791c1fece8e 165 /**
RodColeman 0:0791c1fece8e 166 * Gets a string of set fields to send with the answere header.
RodColeman 0:0791c1fece8e 167 */
RodColeman 0:0791c1fece8e 168 const char *getHeaderFields() const { return (_request_headerfields)?_request_headerfields:""; }
RodColeman 0:0791c1fece8e 169
RodColeman 0:0791c1fece8e 170 /**
RodColeman 0:0791c1fece8e 171 * Gets the length of the anwere in bytes. This is requiered for the HTTP Header.
RodColeman 0:0791c1fece8e 172 * It should be set over setLength by an HTTPHandler in the init() method.
RodColeman 0:0791c1fece8e 173 */
RodColeman 0:0791c1fece8e 174 const int &getLength() const { return _request_length; }
RodColeman 0:0791c1fece8e 175
RodColeman 0:0791c1fece8e 176 /**
RodColeman 0:0791c1fece8e 177 * Gets POST or GET or 0 depends on wether ther is a request and what type is requested.
RodColeman 0:0791c1fece8e 178 */
RodColeman 0:0791c1fece8e 179 const char &getType() const { return _request_type; }
RodColeman 0:0791c1fece8e 180
RodColeman 0:0791c1fece8e 181 /**
RodColeman 0:0791c1fece8e 182 * Gets a value from a header field of the request header.
RodColeman 0:0791c1fece8e 183 * But you must have registerd this headerfield by the HTTPServer before.
RodColeman 0:0791c1fece8e 184 * Use the HTTPHandler::reg() method for the registration of important header fields for your Handler.
RodColeman 0:0791c1fece8e 185 */
RodColeman 0:0791c1fece8e 186 const char *getField(char *key) const;
RodColeman 0:0791c1fece8e 187
RodColeman 0:0791c1fece8e 188 /**
RodColeman 0:0791c1fece8e 189 * For internal usage. Adds an header field value to its hash.
RodColeman 0:0791c1fece8e 190 * If it was registered You can see the Value with the getField method
RodColeman 0:0791c1fece8e 191 */
RodColeman 0:0791c1fece8e 192 void addField(char *key, char *value);
RodColeman 0:0791c1fece8e 193
RodColeman 0:0791c1fece8e 194 /**
RodColeman 0:0791c1fece8e 195 * Sets the result length for an request shoud be set in an HTTPHandler.init() call.
RodColeman 0:0791c1fece8e 196 * This Value will be send with the response header before the first chunk of data is send.
RodColeman 0:0791c1fece8e 197 */
RodColeman 0:0791c1fece8e 198 void setLength(const int &value) { _request_length = value; }
RodColeman 0:0791c1fece8e 199
RodColeman 0:0791c1fece8e 200 /**
RodColeman 0:0791c1fece8e 201 * Set the response header field to a value.
RodColeman 0:0791c1fece8e 202 * Should be used in the HTTPHandler::init() method.
RodColeman 0:0791c1fece8e 203 * For example if you want to set caching methods.
RodColeman 0:0791c1fece8e 204 */
RodColeman 0:0791c1fece8e 205 void setHeaderFields(char *value) { _request_headerfields = value; }
RodColeman 0:0791c1fece8e 206
RodColeman 0:0791c1fece8e 207 /** Indicates that if a request is received the header is incomplete until now. */
RodColeman 0:0791c1fece8e 208 bool request_incomplete;
RodColeman 0:0791c1fece8e 209
RodColeman 0:0791c1fece8e 210 /** If an request is complete HTTPHandler:init will be called and can store here its connection data. */
RodColeman 0:0791c1fece8e 211 HTTPData *data;
RodColeman 0:0791c1fece8e 212
RodColeman 0:0791c1fece8e 213 /** The handler which handles the current request. Depends on the prefix of the URL. */
RodColeman 0:0791c1fece8e 214 HTTPHandler *request_handler;
RodColeman 0:0791c1fece8e 215
RodColeman 0:0791c1fece8e 216 /** The status of the request. Will be set as result of HTTPHandler::init. */
RodColeman 0:0791c1fece8e 217 HTTPStatus request_status;
RodColeman 0:0791c1fece8e 218
RodColeman 0:0791c1fece8e 219 /** The HTTTPServer which created this connection. */
RodColeman 0:0791c1fece8e 220 HTTPServer *parent;
RodColeman 0:0791c1fece8e 221 private:
RodColeman 0:0791c1fece8e 222 virtual void err(err_t err);
RodColeman 0:0791c1fece8e 223 virtual err_t poll();
RodColeman 0:0791c1fece8e 224 virtual err_t sent(u16_t len);
RodColeman 0:0791c1fece8e 225 virtual err_t recv(struct pbuf *q, err_t err);
RodColeman 0:0791c1fece8e 226
RodColeman 0:0791c1fece8e 227 /** We will not make any DNS requests. */
RodColeman 0:0791c1fece8e 228 virtual void dnsreply(const char *, struct ip_addr *) {}
RodColeman 0:0791c1fece8e 229
RodColeman 0:0791c1fece8e 230 /** If a request is finished it will be deleted with this method. Simple cleanup. */
RodColeman 0:0791c1fece8e 231 void deleteRequest();
RodColeman 0:0791c1fece8e 232
RodColeman 0:0791c1fece8e 233 /** Call the handler to send the next chunk of data. */
RodColeman 0:0791c1fece8e 234 void send();
RodColeman 0:0791c1fece8e 235
RodColeman 0:0791c1fece8e 236 /** Call the handler if we received new data. */
RodColeman 0:0791c1fece8e 237 void store(void *d, struct pbuf *p);
RodColeman 0:0791c1fece8e 238
RodColeman 0:0791c1fece8e 239 /**
RodColeman 0:0791c1fece8e 240 * If a request header is not complete we can colect needed header fields.
RodColeman 0:0791c1fece8e 241 * This happens in here.
RodColeman 0:0791c1fece8e 242 */
RodColeman 0:0791c1fece8e 243 void getFields(struct pbuf **q, char **d);
RodColeman 0:0791c1fece8e 244
RodColeman 0:0791c1fece8e 245 char *_request_url;
RodColeman 0:0791c1fece8e 246 char _request_type;
RodColeman 0:0791c1fece8e 247 char *_request_headerfields;
RodColeman 0:0791c1fece8e 248 map<unsigned int, char *> _request_fields;
RodColeman 0:0791c1fece8e 249 int _request_length;
RodColeman 0:0791c1fece8e 250 char *_request_arg_key;
RodColeman 0:0791c1fece8e 251 char *_request_arg_value;
RodColeman 0:0791c1fece8e 252 char _request_arg_state;
RodColeman 0:0791c1fece8e 253
RodColeman 0:0791c1fece8e 254 unsigned int emptypolls; // Last time for timeout
RodColeman 0:0791c1fece8e 255 unsigned int _timeout_max;
RodColeman 0:0791c1fece8e 256 };
RodColeman 0:0791c1fece8e 257
RodColeman 0:0791c1fece8e 258 /* Class HTTPServer
RodColeman 0:0791c1fece8e 259 * An object of this class is an HTTPServer instance and will anwere requests on a given port.
RodColeman 0:0791c1fece8e 260 * It will deliver HTTP pages
RodColeman 0:0791c1fece8e 261 */
RodColeman 0:0791c1fece8e 262 class HTTPServer : public TCPListener {
RodColeman 0:0791c1fece8e 263 public:
RodColeman 0:0791c1fece8e 264
RodColeman 0:0791c1fece8e 265 /* Constructor: HTTPServer
RodColeman 0:0791c1fece8e 266 * Creates an HTTPServer object. You might want to initialise the network server befor.
RodColeman 0:0791c1fece8e 267 * If you dont do it it will be happen by the first post or get request you make.
RodColeman 0:0791c1fece8e 268 *
RodColeman 0:0791c1fece8e 269 * To initialize the network server on creation of the HTTPServer object it's possible to parse some arguments:
RodColeman 0:0791c1fece8e 270 * Variables:
RodColeman 0:0791c1fece8e 271 * hostname - A host name for the device. Might take a while to appear in the network,
RodColeman 0:0791c1fece8e 272 * depends on the network infrastructure. Furthermore in most cases you have
RodColeman 0:0791c1fece8e 273 * to add your domainname after the host name to address the device.
RodColeman 0:0791c1fece8e 274 * Default is NULL.
RodColeman 0:0791c1fece8e 275 * ip - The device ipaddress or ip_addr_any for dhcp. Default is ip_addr_any
RodColeman 0:0791c1fece8e 276 * nm - The device netmask or ip_addr_any for dhcp. Default is ip_addr_any.
RodColeman 0:0791c1fece8e 277 * gw - The device gateway or ip_addr_any for dhcp. Default is ip_addr_any.
RodColeman 0:0791c1fece8e 278 * dns - The device first dns server ip or ip_addr_any for dhcp. Default is ip_addr_any.
RodColeman 0:0791c1fece8e 279 *
RodColeman 0:0791c1fece8e 280 * Example:
RodColeman 0:0791c1fece8e 281 * > HTTPServer http; // Simple DHCP, brings up the TCP/IP stack on bind(). Default prot is port 80.
RodColeman 0:0791c1fece8e 282 * > HTTPServer http(8080); // Port is here 8080.
RodColeman 0:0791c1fece8e 283 *
RodColeman 0:0791c1fece8e 284 * > HTTPServer http("worf"); // Brings up the device with DHCP and sets the host name "worf"
RodColeman 0:0791c1fece8e 285 * > // The device will be available under worf.<your local domain>
RodColeman 0:0791c1fece8e 286 * > // for example worf.1-2-3-4.dynamic.sky.com
RodColeman 0:0791c1fece8e 287 *
RodColeman 0:0791c1fece8e 288 * > HTTPServer http("wolf", // Brings up the device with static IP address and domain name.
RodColeman 0:0791c1fece8e 289 * > IPv4(192,168,0,44), // IPv4 is a helper function which allows to rtype ipaddresses direct
RodColeman 0:0791c1fece8e 290 * > IPv4(255,255,255,0), // as numbers in C++.
RodColeman 0:0791c1fece8e 291 * > IPv4(192,168,0,1), // the device address is set to 192.168.0.44, netmask 255.255.255.0
RodColeman 0:0791c1fece8e 292 * > IPv4(192,168,0,1) // default gateway is 192.168.0.1 and dns to 192.168.0.1 as well.
RodColeman 0:0791c1fece8e 293 * > 8080); // And port is on 8080. Default port is 80.
RodColeman 0:0791c1fece8e 294 */
RodColeman 0:0791c1fece8e 295
RodColeman 0:0791c1fece8e 296 HTTPServer(const char *hostname, struct ip_addr ip = ip_addr_any, struct ip_addr nm = ip_addr_any, struct ip_addr gw = ip_addr_any, struct ip_addr dns = ip_addr_any, unsigned short port = 80);
RodColeman 0:0791c1fece8e 297 HTTPServer(unsigned short port = 80);
RodColeman 0:0791c1fece8e 298
RodColeman 0:0791c1fece8e 299 /* Destructor: ~HTTPServer
RodColeman 0:0791c1fece8e 300 * Destroys the HTTPServer and all open connections.
RodColeman 0:0791c1fece8e 301 */
RodColeman 0:0791c1fece8e 302 virtual ~HTTPServer() {
RodColeman 0:0791c1fece8e 303 fields.clear();
RodColeman 0:0791c1fece8e 304 _handler.clear();
RodColeman 0:0791c1fece8e 305 }
RodColeman 0:0791c1fece8e 306
RodColeman 0:0791c1fece8e 307 /* Function: addHandler
RodColeman 0:0791c1fece8e 308 * Add a new content handler to handle requests.
RodColeman 0:0791c1fece8e 309 * Content handler are URL prefix specific.
RodColeman 0:0791c1fece8e 310 * Have a look at HTTPRPC and HTTPFileSystemHandler for examples.
RodColeman 0:0791c1fece8e 311 */
RodColeman 0:0791c1fece8e 312 virtual void addHandler(HTTPHandler *handler) {
RodColeman 0:0791c1fece8e 313 _handler.push_back(handler);
RodColeman 0:0791c1fece8e 314 handler->reg(this);
RodColeman 0:0791c1fece8e 315 }
RodColeman 0:0791c1fece8e 316
RodColeman 0:0791c1fece8e 317 /* Function registerField
RodColeman 0:0791c1fece8e 318 * Register needed header fields to filter from a request header.
RodColeman 0:0791c1fece8e 319 * Should be called from HTTPHandler::reg()
RodColeman 0:0791c1fece8e 320 */
RodColeman 0:0791c1fece8e 321 virtual void registerField(char *name) {
RodColeman 0:0791c1fece8e 322 fields.insert(hash((unsigned char *)name));
RodColeman 0:0791c1fece8e 323 }
RodColeman 0:0791c1fece8e 324
RodColeman 0:0791c1fece8e 325 /* Function isField
RodColeman 0:0791c1fece8e 326 * A short lookup if the headerfield is registerd.
RodColeman 0:0791c1fece8e 327 */
RodColeman 0:0791c1fece8e 328 virtual bool isField(unsigned long h) const {
RodColeman 0:0791c1fece8e 329 return fields.find(h) != fields.end();
RodColeman 0:0791c1fece8e 330 }
RodColeman 0:0791c1fece8e 331
RodColeman 0:0791c1fece8e 332 /* Function: poll
RodColeman 0:0791c1fece8e 333 * You have to call this method at least every 250ms to let the http server run.
RodColeman 0:0791c1fece8e 334 * But I would recomend to call this function as fast as possible.
RodColeman 0:0791c1fece8e 335 * This function is directly coupled to the answere time of your HTTPServer instance.
RodColeman 0:0791c1fece8e 336 */
RodColeman 0:0791c1fece8e 337 inline static void poll() {
RodColeman 0:0791c1fece8e 338 NetServer::poll();
RodColeman 0:0791c1fece8e 339 }
RodColeman 0:0791c1fece8e 340
RodColeman 0:0791c1fece8e 341 /* Function: timeout
RodColeman 0:0791c1fece8e 342 * Sets the timout for a HTTP request.
RodColeman 0:0791c1fece8e 343 * The timout is the time wich is allowed to spent between two incomming TCP packets.
RodColeman 0:0791c1fece8e 344 * If the time is passed the connection will be closed.
RodColeman 0:0791c1fece8e 345 */
RodColeman 0:0791c1fece8e 346 void timeout(int value) {
RodColeman 0:0791c1fece8e 347 _timeout_max = value;
RodColeman 0:0791c1fece8e 348 }
RodColeman 0:0791c1fece8e 349
RodColeman 0:0791c1fece8e 350 /* Function timeout
RodColeman 0:0791c1fece8e 351 * Returns the timout to use it in HTTPHandlers and HTTPConnections
RodColeman 0:0791c1fece8e 352 */
RodColeman 0:0791c1fece8e 353 int timeout() {
RodColeman 0:0791c1fece8e 354 return _timeout_max;
RodColeman 0:0791c1fece8e 355 }
RodColeman 0:0791c1fece8e 356 private:
RodColeman 0:0791c1fece8e 357 /**
RodColeman 0:0791c1fece8e 358 * Pick up the right handler to deliver the response.
RodColeman 0:0791c1fece8e 359 */
RodColeman 0:0791c1fece8e 360 virtual HTTPHandler *handle(HTTPConnection *con) const {
RodColeman 0:0791c1fece8e 361 for(list<HTTPHandler *>::const_iterator iter = _handler.begin();
RodColeman 0:0791c1fece8e 362 iter != _handler.end(); iter++) {
RodColeman 0:0791c1fece8e 363 if(strncmp((*iter)->getPrefix(), con->getURL(), strlen((*iter)->getPrefix()))==0) {
RodColeman 0:0791c1fece8e 364 HTTPHandler *handler = *iter;
RodColeman 0:0791c1fece8e 365 if(handler->action(con)==HTTP_Deliver) {
RodColeman 0:0791c1fece8e 366 return *iter;
RodColeman 0:0791c1fece8e 367 }
RodColeman 0:0791c1fece8e 368 }
RodColeman 0:0791c1fece8e 369 }
RodColeman 0:0791c1fece8e 370 return NULL;
RodColeman 0:0791c1fece8e 371 }
RodColeman 0:0791c1fece8e 372
RodColeman 0:0791c1fece8e 373 /**
RodColeman 0:0791c1fece8e 374 * Accept an incomming connection and fork a HTTPConnection if we have enought memory.
RodColeman 0:0791c1fece8e 375 */
RodColeman 0:0791c1fece8e 376 virtual err_t accept(struct tcp_pcb *pcb, err_t err) {
RodColeman 0:0791c1fece8e 377 LWIP_UNUSED_ARG(err);
RodColeman 0:0791c1fece8e 378 HTTPConnection *con = new HTTPConnection(this, pcb);
RodColeman 0:0791c1fece8e 379 // printf("New Connection opend. Now are %u connections open\n", ++gconnections);
RodColeman 0:0791c1fece8e 380 if(con == NULL) {
RodColeman 0:0791c1fece8e 381 printf("http_accept: Out of memory\n");
RodColeman 0:0791c1fece8e 382 return ERR_MEM;
RodColeman 0:0791c1fece8e 383 }
RodColeman 0:0791c1fece8e 384 con->set_poll_interval(1);
RodColeman 0:0791c1fece8e 385 tcp_setprio(pcb, TCP_PRIO_MIN);
RodColeman 0:0791c1fece8e 386 return ERR_OK;
RodColeman 0:0791c1fece8e 387 }
RodColeman 0:0791c1fece8e 388
RodColeman 0:0791c1fece8e 389 /** The registerd request header fields */
RodColeman 0:0791c1fece8e 390 set<unsigned int> fields;
RodColeman 0:0791c1fece8e 391
RodColeman 0:0791c1fece8e 392 /** A List of all registered handler. */
RodColeman 0:0791c1fece8e 393 list<HTTPHandler *> _handler;
RodColeman 0:0791c1fece8e 394
RodColeman 0:0791c1fece8e 395 int _timeout_max;
RodColeman 0:0791c1fece8e 396
RodColeman 0:0791c1fece8e 397 friend HTTPConnection;
RodColeman 0:0791c1fece8e 398 };
RodColeman 0:0791c1fece8e 399
RodColeman 0:0791c1fece8e 400 };
RodColeman 0:0791c1fece8e 401
RodColeman 0:0791c1fece8e 402 #include "HTTPRPC.h"
RodColeman 0:0791c1fece8e 403 #include "HTTPFS.h"
RodColeman 0:0791c1fece8e 404 #include "HTTPFields.h"
RodColeman 0:0791c1fece8e 405
RodColeman 0:0791c1fece8e 406 #endif /* HTTP_H */