Akifumi Takahashi / HTTP_SERVER_mbed-os

The lib with which to make LPC1768 a simple HTTP server. This have not yet implemented. fopen() DOESN'T WORK after EthernetInterface::connect() is called as using mbed-os 5.4~. See also https://os.mbed.com/questions/80658/HardFault-occurs-when-fopen-is-called-af/ or https://github.com/ARMmbed/mbed-os/issues/6578 and https://github.com/ARMmbed/mbed-os/issues/6624

Fork of HTTP_SERVER by Akifumi Takahashi

handlers/ResponseMessenger.cpp@0:cc483bea4fe3, 2016-02-16 (annotated)

Committer:
aktk
Date:
Tue Feb 16 10:59:31 2016 +0000
Revision:
0:cc483bea4fe3
Child:
1:3a1fe94c6e42
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aktk 0:cc483bea4fe3 1 #include "ResponseMessenger.h"
aktk 0:cc483bea4fe3 2
aktk 0:cc483bea4fe3 3 const char ResponseMessenger::http_ver[9] = "HTTP/1.1";
aktk 0:cc483bea4fe3 4 ResponseMessenger::ResponseMessenger()
aktk 0:cc483bea4fe3 5 {
aktk 0:cc483bea4fe3 6 // Status-Line
aktk 0:cc483bea4fe3 7 status_code = 0;
aktk 0:cc483bea4fe3 8 reason_phrase[0] = '\0';
aktk 0:cc483bea4fe3 9 header_field_buffer[0]='\0';
aktk 0:cc483bea4fe3 10 // Response Header
aktk 0:cc483bea4fe3 11 }
aktk 0:cc483bea4fe3 12 ResponseMessenger::~ResponseMessenger()
aktk 0:cc483bea4fe3 13 {
aktk 0:cc483bea4fe3 14 }
aktk 0:cc483bea4fe3 15 int ResponseMessenger::resetHeader()
aktk 0:cc483bea4fe3 16 {
aktk 0:cc483bea4fe3 17 // Status-Line
aktk 0:cc483bea4fe3 18 status_code = 0;
aktk 0:cc483bea4fe3 19 reason_phrase[0] = '\0';
aktk 0:cc483bea4fe3 20 header_field_buffer[0]='\0';
aktk 0:cc483bea4fe3 21 // Response Header
aktk 0:cc483bea4fe3 22 return 0;
aktk 0:cc483bea4fe3 23 }
aktk 0:cc483bea4fe3 24 int ResponseMessenger::setStatusLine(
aktk 0:cc483bea4fe3 25 int arg_status_code,
aktk 0:cc483bea4fe3 26 const char* arg_reason_phrase
aktk 0:cc483bea4fe3 27 )
aktk 0:cc483bea4fe3 28 {
aktk 0:cc483bea4fe3 29 status_code = arg_status_code;
aktk 0:cc483bea4fe3 30 strcpy(reason_phrase, arg_reason_phrase);
aktk 0:cc483bea4fe3 31
aktk 0:cc483bea4fe3 32 // To be safe on the sage side
aktk 0:cc483bea4fe3 33 reason_phrase[REASON_PHRASE_SIZE - 1] = '\0';
aktk 0:cc483bea4fe3 34 // Send 0 if arg str size is too big, else -1.
aktk 0:cc483bea4fe3 35 if (strlen(arg_reason_phrase) < REASON_PHRASE_SIZE)
aktk 0:cc483bea4fe3 36 return 0;
aktk 0:cc483bea4fe3 37 else
aktk 0:cc483bea4fe3 38 return -1;
aktk 0:cc483bea4fe3 39 }
aktk 0:cc483bea4fe3 40
aktk 0:cc483bea4fe3 41 int ResponseMessenger::setHeaderField(
aktk 0:cc483bea4fe3 42 const char* arg_field_name, const char* arg_field_val)
aktk 0:cc483bea4fe3 43 {
aktk 0:cc483bea4fe3 44 const int nField = 4;
aktk 0:cc483bea4fe3 45 char registered_field_name[nField][32]= {
aktk 0:cc483bea4fe3 46 "Connection",
aktk 0:cc483bea4fe3 47 "Location",
aktk 0:cc483bea4fe3 48 "Keep-Alive",
aktk 0:cc483bea4fe3 49 "Content-Type"
aktk 0:cc483bea4fe3 50 };
aktk 0:cc483bea4fe3 51 bool flag = false;
aktk 0:cc483bea4fe3 52 char header_field_line_buffer[128];
aktk 0:cc483bea4fe3 53 int buffer_size = strlen(header_field_buffer);
aktk 0:cc483bea4fe3 54
aktk 0:cc483bea4fe3 55 for (int i = 0; i < nField; i++) {
aktk 0:cc483bea4fe3 56 if(strcmp(arg_field_name, registered_field_name[i]) == 0)
aktk 0:cc483bea4fe3 57 flag = true;
aktk 0:cc483bea4fe3 58 }
aktk 0:cc483bea4fe3 59 if(flag) {
aktk 0:cc483bea4fe3 60 sprintf(header_field_line_buffer, "%s: %s\r\n", arg_field_name, arg_field_val);
aktk 0:cc483bea4fe3 61 strcat(header_field_buffer, header_field_line_buffer);
aktk 0:cc483bea4fe3 62 printf("header field: \r\n%s\r\n", header_field_buffer);
aktk 0:cc483bea4fe3 63 }
aktk 0:cc483bea4fe3 64 // To be safe on the sage side
aktk 0:cc483bea4fe3 65 header_field_buffer[HEADER_FIELDS_SIZE - 1] = '\0';
aktk 0:cc483bea4fe3 66 // Send 0 if arg str size is too big, else -1.
aktk 0:cc483bea4fe3 67 if (buffer_size + strlen(arg_field_name) + strlen(arg_field_val) < HEADER_FIELDS_SIZE + 1)
aktk 0:cc483bea4fe3 68 return 0;
aktk 0:cc483bea4fe3 69 else
aktk 0:cc483bea4fe3 70 return -1;
aktk 0:cc483bea4fe3 71 }
aktk 0:cc483bea4fe3 72
aktk 0:cc483bea4fe3 73 int ResponseMessenger::setHeaderField(
aktk 0:cc483bea4fe3 74 const char* arg_field_name, int arg_field_val)
aktk 0:cc483bea4fe3 75 {
aktk 0:cc483bea4fe3 76 const int nField = 1;
aktk 0:cc483bea4fe3 77 char registered_field_name[nField][32]= {
aktk 0:cc483bea4fe3 78 "Content-Length"
aktk 0:cc483bea4fe3 79 };
aktk 0:cc483bea4fe3 80 bool flag = false;
aktk 0:cc483bea4fe3 81 char header_field_line_buffer[128];
aktk 0:cc483bea4fe3 82 int buffer_size = strlen(header_field_buffer);
aktk 0:cc483bea4fe3 83
aktk 0:cc483bea4fe3 84 for (int i = 0; i < nField; i++) {
aktk 0:cc483bea4fe3 85 if(strcmp(arg_field_name, registered_field_name[i]) == 0)
aktk 0:cc483bea4fe3 86 flag = true;
aktk 0:cc483bea4fe3 87 }
aktk 0:cc483bea4fe3 88 if(flag) {
aktk 0:cc483bea4fe3 89 sprintf(header_field_line_buffer, "%s: %d\r\n", arg_field_name, arg_field_val);
aktk 0:cc483bea4fe3 90 strcat(header_field_buffer, header_field_line_buffer);
aktk 0:cc483bea4fe3 91 printf("header field: \r\n%s\r\n", header_field_buffer);
aktk 0:cc483bea4fe3 92 }
aktk 0:cc483bea4fe3 93 // To be safe on the sage side
aktk 0:cc483bea4fe3 94 header_field_buffer[HEADER_FIELDS_SIZE - 1] = '\0';
aktk 0:cc483bea4fe3 95 // Send 0 if arg str size is too big, else -1.
aktk 0:cc483bea4fe3 96 if (buffer_size + strlen(arg_field_name) + 10 < HEADER_FIELDS_SIZE + 1)
aktk 0:cc483bea4fe3 97 return 0;
aktk 0:cc483bea4fe3 98 else
aktk 0:cc483bea4fe3 99 return -1;
aktk 0:cc483bea4fe3 100 }
aktk 0:cc483bea4fe3 101 int ResponseMessenger::getStatusCode()
aktk 0:cc483bea4fe3 102 {
aktk 0:cc483bea4fe3 103 return status_code;
aktk 0:cc483bea4fe3 104 }
aktk 0:cc483bea4fe3 105
aktk 0:cc483bea4fe3 106 char ResponseMessenger::sendHTTPResponse(
aktk 0:cc483bea4fe3 107 TCPSocketConnection &arg_connection)
aktk 0:cc483bea4fe3 108 {
aktk 0:cc483bea4fe3 109 int err_log = 0;
aktk 0:cc483bea4fe3 110 int err_code = 0;
aktk 0:cc483bea4fe3 111 enum {
aktk 0:cc483bea4fe3 112 MAX_BUFFER_SIZE = 1024
aktk 0:cc483bea4fe3 113 };
aktk 0:cc483bea4fe3 114 char buffer[MAX_BUFFER_SIZE] = "\0";
aktk 0:cc483bea4fe3 115
aktk 0:cc483bea4fe3 116 //
aktk 0:cc483bea4fe3 117 // Header
aktk 0:cc483bea4fe3 118 //
aktk 0:cc483bea4fe3 119 printf("[send]Header\r\n");
aktk 0:cc483bea4fe3 120 // Status Line
aktk 0:cc483bea4fe3 121 sprintf(buffer, "%s %d %s\r\n", http_ver, status_code, reason_phrase);
aktk 0:cc483bea4fe3 122 buffer[MAX_BUFFER_SIZE - 1] = '\0';
aktk 0:cc483bea4fe3 123 err_log = arg_connection.send_all(buffer, strlen(buffer));
aktk 0:cc483bea4fe3 124 if(err_log < 0) err_code = ((err_code << 1) | 1);
aktk 0:cc483bea4fe3 125 // Response Header
aktk 0:cc483bea4fe3 126 err_log = arg_connection.send_all(header_field_buffer, strlen(header_field_buffer));
aktk 0:cc483bea4fe3 127 if(err_log < 0) err_code = ((err_code << 1) | 1);
aktk 0:cc483bea4fe3 128 // Blank line
aktk 0:cc483bea4fe3 129 err_log = arg_connection.send_all("\r\n", strlen("\r\n"));
aktk 0:cc483bea4fe3 130 if(err_log < 0) err_code = ((err_code << 1) | 1);
aktk 0:cc483bea4fe3 131 printf("[Header has sent]\r\n");
aktk 0:cc483bea4fe3 132 //return error code
aktk 0:cc483bea4fe3 133 return err_code << 2;
aktk 0:cc483bea4fe3 134
aktk 0:cc483bea4fe3 135 }
aktk 0:cc483bea4fe3 136
aktk 0:cc483bea4fe3 137 char ResponseMessenger::sendHTTPResponse(
aktk 0:cc483bea4fe3 138 TCPSocketConnection &arg_connection,
aktk 0:cc483bea4fe3 139 FileHandler &arg_file)
aktk 0:cc483bea4fe3 140 {
aktk 0:cc483bea4fe3 141 int err_log = 0;
aktk 0:cc483bea4fe3 142 int err_code = 0;
aktk 0:cc483bea4fe3 143 enum {
aktk 0:cc483bea4fe3 144 MAX_BUFFER_SIZE = 1024
aktk 0:cc483bea4fe3 145 };
aktk 0:cc483bea4fe3 146 signed char buffer[MAX_BUFFER_SIZE];
aktk 0:cc483bea4fe3 147
aktk 0:cc483bea4fe3 148 //
aktk 0:cc483bea4fe3 149 // Header
aktk 0:cc483bea4fe3 150 //
aktk 0:cc483bea4fe3 151 err_code = sendHTTPResponse(arg_connection);
aktk 0:cc483bea4fe3 152 //
aktk 0:cc483bea4fe3 153 // Body
aktk 0:cc483bea4fe3 154 //
aktk 0:cc483bea4fe3 155 if (arg_file.arrival() && status_code == 200) {
aktk 0:cc483bea4fe3 156 printf("[send]Body\r\n");
aktk 0:cc483bea4fe3 157 do {
aktk 0:cc483bea4fe3 158 int i = 0;
aktk 0:cc483bea4fe3 159 do {
aktk 0:cc483bea4fe3 160 buffer[i++] = arg_file.getc();//return a byte from file ponter, or -1 if EOF or ERROR
aktk 0:cc483bea4fe3 161 } while ((i < MAX_BUFFER_SIZE - 1) && (buffer[i - 1] != EOF));
aktk 0:cc483bea4fe3 162 if(buffer[i - 1] == EOF)buffer[i - 1] = '\0';
aktk 0:cc483bea4fe3 163 buffer[i] = '\0';
aktk 0:cc483bea4fe3 164 if (!arg_file.hasError()) {
aktk 0:cc483bea4fe3 165 err_log = arg_connection.send_all((char*)buffer, i);
aktk 0:cc483bea4fe3 166 //printf("buffer log: %s", buffer);
aktk 0:cc483bea4fe3 167 }
aktk 0:cc483bea4fe3 168 if (arg_file.hasError()) printf("\r\n[ERR][ERR][ERR]\r\n");
aktk 0:cc483bea4fe3 169 if (arg_file.atEOF()) printf("\r\n[EOF][EOF][EOF]\r\n");
aktk 0:cc483bea4fe3 170 } while (!arg_file.atEOF() && !arg_file.hasError());
aktk 0:cc483bea4fe3 171 printf("[Body has sent]\r\n");
aktk 0:cc483bea4fe3 172
aktk 0:cc483bea4fe3 173 if (err_log < 0) err_code = ((err_code) | 2);
aktk 0:cc483bea4fe3 174 if (!arg_file.hasError())err_code = ((err_code) | 1);
aktk 0:cc483bea4fe3 175 }
aktk 0:cc483bea4fe3 176 else{
aktk 0:cc483bea4fe3 177 printf("[No Body]\r\n");
aktk 0:cc483bea4fe3 178 }
aktk 0:cc483bea4fe3 179 return (char)err_code;
aktk 0:cc483bea4fe3 180 }