FOURNET Olivier / FCT_WEB

Fonctions communes aux programmes Nucleo Web ENC28J60...

Dependents:   Nucleo_Web_ENC28J60 Nucleo_Web_ENC28J60_ADC

Fct_Web.h@2:ba0105da75cd, 2015-09-28 (annotated)

Committer:
Fo170
Date:
Mon Sep 28 22:19:50 2015 +0000
Revision:
2:ba0105da75cd
Parent:
1:b52ad028c502 
mise a jours info carte ENC28J60 de MikroE

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Fo170 0:36baf2ffa8eb 1 const uint16_t MY_PORT = 80; // for HTTP connection
Fo170 0:36baf2ffa8eb 2 EthernetServer myServer = EthernetServer(MY_PORT);
Fo170 0:36baf2ffa8eb 3
Fo170 0:36baf2ffa8eb 4 string httpHeader; // HTTP header
Fo170 0:36baf2ffa8eb 5 string httpContent; // HTTP content
Fo170 0:36baf2ffa8eb 6
Fo170 0:36baf2ffa8eb 7 string& page(uint8_t status); // Declaration de la fonction page
Fo170 0:36baf2ffa8eb 8
Fo170 0:36baf2ffa8eb 9 // analyse the url given
Fo170 0:36baf2ffa8eb 10 // return values: -1 invalid password
Fo170 0:36baf2ffa8eb 11 // -2 no command given but password valid
Fo170 0:36baf2ffa8eb 12 // -3 just refresh page
Fo170 0:36baf2ffa8eb 13 // 0 switch off
Fo170 0:36baf2ffa8eb 14 // 1 switch on
Fo170 0:36baf2ffa8eb 15 //
Fo170 0:36baf2ffa8eb 16 // The string passed to this function will look like this:
Fo170 0:36baf2ffa8eb 17 // GET /password HTTP/1.....
Fo170 0:36baf2ffa8eb 18 // GET /password/ HTTP/1.....
Fo170 0:36baf2ffa8eb 19 // GET /password/?sw=1 HTTP/1.....
Fo170 0:36baf2ffa8eb 20 // GET /password/?sw=0 HTTP/1.....
Fo170 0:36baf2ffa8eb 21
Fo170 0:36baf2ffa8eb 22 int8_t analyse_get_url(string& str)
Fo170 0:36baf2ffa8eb 23 {
Fo170 0:36baf2ffa8eb 24 if(str.substr(5, PASSWORD.size()) != PASSWORD)
Fo170 0:36baf2ffa8eb 25 return(-1);
Fo170 0:36baf2ffa8eb 26
Fo170 0:36baf2ffa8eb 27 uint8_t pos = 5 + PASSWORD.size();
Fo170 0:36baf2ffa8eb 28
Fo170 0:36baf2ffa8eb 29 if(str.substr(pos, 1) == " ") return(-2);
Fo170 0:36baf2ffa8eb 30
Fo170 0:36baf2ffa8eb 31 if(str.substr(pos, 1) != "/") return(-1);
Fo170 0:36baf2ffa8eb 32
Fo170 0:36baf2ffa8eb 33 pos++;
Fo170 0:36baf2ffa8eb 34
Fo170 0:36baf2ffa8eb 35 string cmd(str.substr(pos, 5));
Fo170 0:36baf2ffa8eb 36
Fo170 0:36baf2ffa8eb 37 if(cmd == "?sw=0") return(OFF);
Fo170 0:36baf2ffa8eb 38
Fo170 0:36baf2ffa8eb 39 if(cmd == "?sw=1") return(ON);
Fo170 0:36baf2ffa8eb 40
Fo170 0:36baf2ffa8eb 41 return(-3);
Fo170 0:36baf2ffa8eb 42 }
Fo170 0:36baf2ffa8eb 43
Fo170 0:36baf2ffa8eb 44
Fo170 0:36baf2ffa8eb 45
Fo170 0:36baf2ffa8eb 46 string& moved_perm(uint8_t flag)
Fo170 0:36baf2ffa8eb 47 {
Fo170 0:36baf2ffa8eb 48 if(flag == 1)
Fo170 0:36baf2ffa8eb 49 httpContent = "/" + PASSWORD + "/";
Fo170 0:36baf2ffa8eb 50 else
Fo170 0:36baf2ffa8eb 51 httpContent = "";
Fo170 1:b52ad028c502 52
Fo170 0:36baf2ffa8eb 53 httpContent += "<h1>301 Moved Permanently ";
Fo170 1:b52ad028c502 54 httpContent += str_moved_perm;
Fo170 0:36baf2ffa8eb 55 httpContent += "</h1>\r\n";
Fo170 0:36baf2ffa8eb 56
Fo170 0:36baf2ffa8eb 57 return (httpContent);
Fo170 0:36baf2ffa8eb 58 }
Fo170 0:36baf2ffa8eb 59
Fo170 0:36baf2ffa8eb 60 string& page_toggle_switch(uint8_t status)
Fo170 0:36baf2ffa8eb 61 {
Fo170 0:36baf2ffa8eb 62 //-------------
Fo170 0:36baf2ffa8eb 63 httpContent = str_DOCTYPE;
Fo170 0:36baf2ffa8eb 64 httpContent += "<HTML><HEAD>\r\n";
Fo170 0:36baf2ffa8eb 65 httpContent += "<title>WEB Server Nucleo F411RE - ENC28J60 - Password Page</title>\r\n";
Fo170 2:ba0105da75cd 66 httpContent += "</HEAD><BODY><center>\r\n";
Fo170 2:ba0105da75cd 67 httpContent += "<h2>WEB Server Nucleo F411RE - ENC28J60 - Password Page</h2>\r\n<p>";
Fo170 0:36baf2ffa8eb 68 httpContent += str_image_Password_Folder;
Fo170 0:36baf2ffa8eb 69 httpContent += "<p>\r\n";
Fo170 0:36baf2ffa8eb 70
Fo170 0:36baf2ffa8eb 71 if(status == 1)
Fo170 0:36baf2ffa8eb 72 {
Fo170 0:36baf2ffa8eb 73 httpContent += "<hr><pre>\r\n <font color=#00FF00>ON</font>";
Fo170 1:b52ad028c502 74 httpContent += " <a href=\"./?sw=0\">[switch off]</a>";
Fo170 1:b52ad028c502 75 httpContent += str_ampoule_OFF;
Fo170 1:b52ad028c502 76 httpContent += "\r\n";
Fo170 0:36baf2ffa8eb 77 }
Fo170 0:36baf2ffa8eb 78 else
Fo170 0:36baf2ffa8eb 79 {
Fo170 0:36baf2ffa8eb 80 httpContent += "<hr><pre>\r\n <font color=#FF0000>OFF</font>";
Fo170 1:b52ad028c502 81 httpContent += " <a href=\"./?sw=1\">[switch on]</a>";
Fo170 1:b52ad028c502 82 httpContent += str_ampoule_ON;
Fo170 1:b52ad028c502 83 httpContent += "\r\n";
Fo170 0:36baf2ffa8eb 84 }
Fo170 0:36baf2ffa8eb 85
Fo170 0:36baf2ffa8eb 86 httpContent += " <a href=\".\">[refresh status]</a>\r\n";
Fo170 0:36baf2ffa8eb 87 httpContent += "</pre>\r\n<hr>\r\n";
Fo170 0:36baf2ffa8eb 88
Fo170 2:ba0105da75cd 89 httpContent += "</center></BODY></HTML>";
Fo170 0:36baf2ffa8eb 90 //-----------
Fo170 0:36baf2ffa8eb 91 //wait(1);
Fo170 0:36baf2ffa8eb 92 return httpContent;
Fo170 0:36baf2ffa8eb 93 }
Fo170 0:36baf2ffa8eb 94
Fo170 0:36baf2ffa8eb 95 void http_send(EthernetClient& client, string& header, string& content)
Fo170 0:36baf2ffa8eb 96 {
Fo170 0:36baf2ffa8eb 97 char content_length[5] = {};
Fo170 0:36baf2ffa8eb 98
Fo170 0:36baf2ffa8eb 99 header += "\r\nContent-Type: text/html\r\n";
Fo170 0:36baf2ffa8eb 100 header += "Content-Length: ";
Fo170 0:36baf2ffa8eb 101 sprintf(content_length, "%d", content.length());
Fo170 0:36baf2ffa8eb 102 header += string(content_length) + "\r\n";
Fo170 0:36baf2ffa8eb 103 header += "Pragma: no-cache\r\n";
Fo170 0:36baf2ffa8eb 104 header += "Connection: About to close\r\n";
Fo170 0:36baf2ffa8eb 105 header += "\r\n";
Fo170 0:36baf2ffa8eb 106 string webpage = header + content;
Fo170 0:36baf2ffa8eb 107 client.write((uint8_t*)webpage.c_str(),webpage.length());
Fo170 0:36baf2ffa8eb 108 }
Fo170 0:36baf2ffa8eb 109
Fo170 0:36baf2ffa8eb 110 void HTTP_LOOP(void)
Fo170 0:36baf2ffa8eb 111 {
Fo170 0:36baf2ffa8eb 112 //-----------------
Fo170 0:36baf2ffa8eb 113 UIPEthernet.begin(MY_MAC,MY_IP);
Fo170 0:36baf2ffa8eb 114 myServer.begin();
Fo170 0:36baf2ffa8eb 115 //----BEGIN WHILE-----------
Fo170 0:36baf2ffa8eb 116 while(1)
Fo170 0:36baf2ffa8eb 117 {
Fo170 0:36baf2ffa8eb 118
Fo170 0:36baf2ffa8eb 119 EthernetClient client = myServer.available();
Fo170 0:36baf2ffa8eb 120 if(client)
Fo170 0:36baf2ffa8eb 121 {
Fo170 0:36baf2ffa8eb 122 size_t size = client.available();
Fo170 0:36baf2ffa8eb 123 if(size > 0)
Fo170 0:36baf2ffa8eb 124 {
Fo170 0:36baf2ffa8eb 125 uint8_t* buf = (uint8_t*)malloc(size);
Fo170 0:36baf2ffa8eb 126 size = client.read(buf, size);
Fo170 0:36baf2ffa8eb 127 string received((char*)buf);
Fo170 0:36baf2ffa8eb 128 free(buf);
Fo170 0:36baf2ffa8eb 129 if(received.substr(0, 3) != "GET")
Fo170 0:36baf2ffa8eb 130 {
Fo170 0:36baf2ffa8eb 131 // head, post or other method
Fo170 0:36baf2ffa8eb 132 // for possible status codes see:
Fo170 0:36baf2ffa8eb 133 // http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
Fo170 0:36baf2ffa8eb 134 httpHeader = HTTP_OK;
Fo170 0:36baf2ffa8eb 135 httpContent = "<h1>200 OK</h1>";
Fo170 0:36baf2ffa8eb 136 http_send(client, httpHeader, httpContent);
Fo170 0:36baf2ffa8eb 137 continue;
Fo170 0:36baf2ffa8eb 138 }
Fo170 0:36baf2ffa8eb 139
Fo170 0:36baf2ffa8eb 140 if(received.substr(0, 6) == "GET / ")
Fo170 0:36baf2ffa8eb 141 {
Fo170 0:36baf2ffa8eb 142 httpHeader = HTTP_OK;
Fo170 0:36baf2ffa8eb 143 // httpContent = "<p>Usage: http://host_or_ip/password</p>\r\n";
Fo170 0:36baf2ffa8eb 144 // http_send(client, httpHeader, httpContent);
Fo170 0:36baf2ffa8eb 145
Fo170 0:36baf2ffa8eb 146 http_send(client, httpHeader, page(sw));
Fo170 0:36baf2ffa8eb 147 continue;
Fo170 0:36baf2ffa8eb 148 }
Fo170 0:36baf2ffa8eb 149
Fo170 0:36baf2ffa8eb 150 int cmd = analyse_get_url(received);
Fo170 0:36baf2ffa8eb 151
Fo170 0:36baf2ffa8eb 152 if(cmd == -2)
Fo170 0:36baf2ffa8eb 153 {
Fo170 0:36baf2ffa8eb 154 // redirect to the right base url
Fo170 0:36baf2ffa8eb 155 httpHeader = MOVED_PERM;
Fo170 0:36baf2ffa8eb 156 http_send(client, httpHeader, moved_perm(1));
Fo170 0:36baf2ffa8eb 157 continue;
Fo170 0:36baf2ffa8eb 158 }
Fo170 0:36baf2ffa8eb 159
Fo170 0:36baf2ffa8eb 160 if(cmd == -1)
Fo170 0:36baf2ffa8eb 161 {
Fo170 0:36baf2ffa8eb 162 httpHeader = UNAUTHORIZED;
Fo170 1:b52ad028c502 163 httpContent = "<h1>401 Unauthorized ";
Fo170 1:b52ad028c502 164 httpContent = str_Unauthorized;
Fo170 1:b52ad028c502 165 httpContent += "</h1>\r\n";
Fo170 0:36baf2ffa8eb 166
Fo170 0:36baf2ffa8eb 167 http_send(client, httpHeader, httpContent);
Fo170 0:36baf2ffa8eb 168 continue;
Fo170 0:36baf2ffa8eb 169 }
Fo170 0:36baf2ffa8eb 170
Fo170 0:36baf2ffa8eb 171 if(cmd == 1)
Fo170 0:36baf2ffa8eb 172 {
Fo170 0:36baf2ffa8eb 173 sw = 1; // switch on
Fo170 0:36baf2ffa8eb 174 }
Fo170 0:36baf2ffa8eb 175
Fo170 0:36baf2ffa8eb 176 if(cmd == 0)
Fo170 0:36baf2ffa8eb 177 {
Fo170 0:36baf2ffa8eb 178 sw = 0; // switch off
Fo170 0:36baf2ffa8eb 179 }
Fo170 0:36baf2ffa8eb 180
Fo170 0:36baf2ffa8eb 181 httpHeader = HTTP_OK;
Fo170 0:36baf2ffa8eb 182 http_send(client, httpHeader, page_toggle_switch(sw));
Fo170 0:36baf2ffa8eb 183 }
Fo170 0:36baf2ffa8eb 184 }
Fo170 0:36baf2ffa8eb 185
Fo170 0:36baf2ffa8eb 186 }
Fo170 0:36baf2ffa8eb 187 //----END WHILE-----------
Fo170 0:36baf2ffa8eb 188 }