WIZnet
HTTP sdcard file server WIZwiki-W7500ECO
Dependencies: SDFileSystem WIZnetInterface mbed
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HTTP_SDCard_File_Server_WIZwiki-W7500ECO
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Bohyun Bang
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main.cpp
00001 #include "mbed.h" 00002 #include "EthernetInterface.h" 00003 #include "SDFileSystem.h" 00004 #include <stdio.h> 00005 #include <string.h> 00006 00007 00008 #define MAC "\x00\x08\xDC\x11\x34\x78" 00009 #define IP "192.168.123.100" 00010 #define MASK "255.255.255.0" 00011 #define GATEWAY "192.168.123.1" 00012 00013 #define HTTPD_SERVER_PORT 80 00014 #define HTTPD_MAX_REQ_LENGTH 1023 00015 #define HTTPD_MAX_HDR_LENGTH 255 00016 #define HTTPD_MAX_FNAME_LENGTH 127 00017 #define HTTPD_MAX_DNAME_LENGTH 127 00018 00019 Serial uart(USBTX, USBRX); 00020 00021 //SDFileSystem sd(p5, p6, p7, p8, "sd"); // LPC1768 MBD2PMD 00022 //SDFileSystem sd(P0_18, P0_17, P0_15, P0_16, "sd"); // Seeeduino Arch Pro SPI2SD 00023 //SDFileSystem sd(PTE3, PTE1, PTE2, PTE4, "sd"); // K64F 00024 SDFileSystem sd(PB_03, PB_02, PB_01, PB_00, "sd"); // WIZwiki-W7500ECO 00025 00026 EthernetInterface eth; 00027 TCPSocketServer server; 00028 TCPSocketConnection client; 00029 00030 char buffer[HTTPD_MAX_REQ_LENGTH+1]; 00031 char httpHeader[HTTPD_MAX_HDR_LENGTH+1]; 00032 char fileName[HTTPD_MAX_FNAME_LENGTH+1]; 00033 char dirName[HTTPD_MAX_DNAME_LENGTH+1]; 00034 char *uristr; 00035 char *eou; 00036 char *qrystr; 00037 00038 FILE *fp; 00039 int rdCnt; 00040 00041 DigitalOut led1(LED1); //server listning status 00042 DigitalOut led2(LED2); //socket connecting status 00043 00044 Ticker ledTick; 00045 00046 void ledTickfunc() 00047 { 00048 led1 = !led1; 00049 } 00050 00051 00052 00053 void get_file(char* uri) 00054 { 00055 uart.printf("get_file %s\n", uri); 00056 char *lstchr = strrchr(uri, NULL) -1; 00057 if ('/' == *lstchr) { 00058 uart.printf("Open directory /sd%s\n", uri); 00059 *lstchr = 0; 00060 sprintf(fileName, "/sd%s", uri); 00061 DIR *d = opendir(fileName); 00062 if (d != NULL) { 00063 sprintf(httpHeader,"HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nConnection: Close\r\n\r\n"); 00064 client.send(httpHeader,strlen(httpHeader)); 00065 sprintf(httpHeader,"<html><head><title>Directory Listing</title></head><body><h1>%s Directory Listing</h1><ul>", uri); 00066 client.send(httpHeader,strlen(httpHeader)); 00067 struct dirent *p; 00068 while((p = readdir(d)) != NULL) { 00069 sprintf(dirName, "%s/%s", fileName, p->d_name); 00070 uart.printf("%s\n", dirName); 00071 DIR *subDir = opendir(dirName); 00072 if (subDir != NULL) { 00073 sprintf(httpHeader,"<li><a href=\"./%s/\">%s/</a></li>", p->d_name, p->d_name); 00074 } else { 00075 sprintf(httpHeader,"<li><a href=\"./%s\">%s</a></li>", p->d_name, p->d_name); 00076 } 00077 client.send(httpHeader,strlen(httpHeader)); 00078 } 00079 } 00080 closedir(d); 00081 uart.printf("Directory closed\n"); 00082 sprintf(httpHeader,"</ul></body></html>"); 00083 client.send(httpHeader,strlen(httpHeader)); 00084 } else { 00085 sprintf(fileName, "/sd%s", uri); 00086 fp = fopen(fileName, "r"); 00087 if (fp == NULL) { 00088 uart.printf("File not found\n"); 00089 sprintf(httpHeader,"HTTP/1.1 404 Not Found \r\nContent-Type: text\r\nConnection: Close\r\n\r\n"); 00090 client.send(httpHeader,strlen(httpHeader)); 00091 client.send(uri,strlen(uri)); 00092 } else { 00093 uart.printf("Sending: header"); 00094 sprintf(httpHeader,"HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nConnection: Close\r\n\r\n"); 00095 client.send(httpHeader,strlen(httpHeader)); 00096 uart.printf(" file"); 00097 while ((rdCnt = fread(buffer, sizeof( char ), 1024, fp)) == 1024) { 00098 client.send(buffer, rdCnt); 00099 uart.printf("."); 00100 } 00101 client.send(buffer, rdCnt); 00102 fclose(fp); 00103 uart.printf("done\n"); 00104 } 00105 } 00106 } 00107 00108 int main (void) 00109 { 00110 ledTick.attach(&ledTickfunc,0.5); 00111 // Serial Interface eth; 00112 uart.baud(115200); 00113 uart.printf("Initializing\n"); 00114 00115 // Check File System 00116 uart.printf("Checking File System\n"); 00117 DIR *d = opendir("/sd/"); 00118 if (d != NULL) { 00119 uart.printf("SD Card Present\n"); 00120 } else { 00121 uart.printf("SD Card Root Directory Not Found\n"); 00122 } 00123 00124 // EthernetInterface eth; 00125 uart.printf("Initializing Ethernet\n"); 00126 //eth.init(); //Use DHCP 00127 //eth.init((uint8_t*)MAC); // Use DHCP for WIZnetInterface 00128 eth.init((uint8_t*)MAC,IP,MASK,GATEWAY); //IP,mask,Gateway 00129 uart.printf("Connecting\n"); 00130 eth.connect(); 00131 uart.printf("IP Address is %s\n", eth.getIPAddress()); 00132 00133 // TCPSocketServer server; 00134 server.bind(HTTPD_SERVER_PORT); 00135 server.listen(); 00136 uart.printf("Server Listening\n"); 00137 00138 while (true) { 00139 uart.printf("\nWait for new connection...\r\n"); 00140 server.accept(client); 00141 client.set_blocking(false, 1500); // Timeout after (1.5)s 00142 00143 uart.printf("Connection from: %s\r\n", client.get_address()); 00144 while (true) { 00145 led2 = true; 00146 int n = client.receive(buffer, sizeof(buffer)); 00147 if (n <= 0) break; 00148 uart.printf("Recieved Data: %d\r\n\r\n%.*s\r\n",n,n,buffer); 00149 if (n >= 1024) { 00150 sprintf(httpHeader,"HTTP/1.1 413 Request Entity Too Large \r\nContent-Type: text\r\nConnection: Close\r\n\r\n"); 00151 client.send(httpHeader,strlen(httpHeader)); 00152 client.send(buffer,n); 00153 break; 00154 } else { 00155 buffer[n]=0; 00156 } 00157 if (!strncmp(buffer, "GET ", 4)) { 00158 uristr = buffer + 4; 00159 eou = strstr(uristr, " "); 00160 if (eou == NULL) { 00161 sprintf(httpHeader,"HTTP/1.1 400 Bad Request \r\nContent-Type: text\r\nConnection: Close\r\n\r\n"); 00162 client.send(httpHeader,strlen(httpHeader)); 00163 client.send(buffer,n); 00164 } else { 00165 *eou = 0; 00166 get_file(uristr); 00167 } 00168 } 00169 } 00170 led2 = false; 00171 client.close(); 00172 } 00173 }
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