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@18:ad5c461905bd, 2018-03-23 (annotated)

Committer:
aktk
Date:
Fri Mar 23 07:40:26 2018 +0000
Revision:
18:ad5c461905bd
Parent:
16:c3920b5b8572 
rename: Filehandler.h -> FileHandler.h

Who changed what in which revision?

UserRevisionLine numberNew contents of line
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 2:33714d7c0f45 20 // Response Header
aktk 0:cc483bea4fe3 21 header_field_buffer[0]='\0';
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 11:0ee7d100db24 44 const int nField = 7;
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 10:4a48594c2f44 49 "Content-Type",
aktk 10:4a48594c2f44 50 "Upgrade",
aktk 10:4a48594c2f44 51 "Sec-WebSocket-Accept",
aktk 10:4a48594c2f44 52 "Access-Control-Allow-Origin"
aktk 0:cc483bea4fe3 53 };
aktk 0:cc483bea4fe3 54 bool flag = false;
aktk 0:cc483bea4fe3 55 char header_field_line_buffer[128];
aktk 0:cc483bea4fe3 56 int buffer_size = strlen(header_field_buffer);
aktk 0:cc483bea4fe3 57
aktk 0:cc483bea4fe3 58 for (int i = 0; i < nField; i++) {
aktk 0:cc483bea4fe3 59 if(strcmp(arg_field_name, registered_field_name[i]) == 0)
aktk 0:cc483bea4fe3 60 flag = true;
aktk 0:cc483bea4fe3 61 }
aktk 0:cc483bea4fe3 62 if(flag) {
aktk 0:cc483bea4fe3 63 sprintf(header_field_line_buffer, "%s: %s\r\n", arg_field_name, arg_field_val);
aktk 0:cc483bea4fe3 64 strcat(header_field_buffer, header_field_line_buffer);
aktk 11:0ee7d100db24 65 //printf("(RM) header field: \r\n%s\r\n", header_field_buffer);
aktk 0:cc483bea4fe3 66 }
aktk 0:cc483bea4fe3 67 // To be safe on the sage side
aktk 0:cc483bea4fe3 68 header_field_buffer[HEADER_FIELDS_SIZE - 1] = '\0';
aktk 0:cc483bea4fe3 69 // Send 0 if arg str size is too big, else -1.
aktk 0:cc483bea4fe3 70 if (buffer_size + strlen(arg_field_name) + strlen(arg_field_val) < HEADER_FIELDS_SIZE + 1)
aktk 0:cc483bea4fe3 71 return 0;
aktk 0:cc483bea4fe3 72 else
aktk 0:cc483bea4fe3 73 return -1;
aktk 0:cc483bea4fe3 74 }
aktk 0:cc483bea4fe3 75
aktk 0:cc483bea4fe3 76 int ResponseMessenger::setHeaderField(
aktk 0:cc483bea4fe3 77 const char* arg_field_name, int arg_field_val)
aktk 0:cc483bea4fe3 78 {
aktk 0:cc483bea4fe3 79 const int nField = 1;
aktk 0:cc483bea4fe3 80 char registered_field_name[nField][32]= {
aktk 0:cc483bea4fe3 81 "Content-Length"
aktk 0:cc483bea4fe3 82 };
aktk 0:cc483bea4fe3 83 bool flag = false;
aktk 0:cc483bea4fe3 84 char header_field_line_buffer[128];
aktk 0:cc483bea4fe3 85 int buffer_size = strlen(header_field_buffer);
aktk 0:cc483bea4fe3 86
aktk 0:cc483bea4fe3 87 for (int i = 0; i < nField; i++) {
aktk 0:cc483bea4fe3 88 if(strcmp(arg_field_name, registered_field_name[i]) == 0)
aktk 0:cc483bea4fe3 89 flag = true;
aktk 0:cc483bea4fe3 90 }
aktk 0:cc483bea4fe3 91 if(flag) {
aktk 0:cc483bea4fe3 92 sprintf(header_field_line_buffer, "%s: %d\r\n", arg_field_name, arg_field_val);
aktk 0:cc483bea4fe3 93 strcat(header_field_buffer, header_field_line_buffer);
aktk 11:0ee7d100db24 94 //printf("(RM) header field: \r\n%s\r\n", header_field_buffer);
aktk 0:cc483bea4fe3 95 }
aktk 0:cc483bea4fe3 96 // To be safe on the sage side
aktk 0:cc483bea4fe3 97 header_field_buffer[HEADER_FIELDS_SIZE - 1] = '\0';
aktk 0:cc483bea4fe3 98 // Send 0 if arg str size is too big, else -1.
aktk 0:cc483bea4fe3 99 if (buffer_size + strlen(arg_field_name) + 10 < HEADER_FIELDS_SIZE + 1)
aktk 0:cc483bea4fe3 100 return 0;
aktk 0:cc483bea4fe3 101 else
aktk 0:cc483bea4fe3 102 return -1;
aktk 0:cc483bea4fe3 103 }
aktk 1:3a1fe94c6e42 104
aktk 1:3a1fe94c6e42 105 int ResponseMessenger::rmHeaderField(
aktk 1:3a1fe94c6e42 106 const char* arg_field_name)
aktk 1:3a1fe94c6e42 107 {
aktk 1:3a1fe94c6e42 108 char* removedLineHead;
aktk 1:3a1fe94c6e42 109 char* removedLineEnd;
aktk 1:3a1fe94c6e42 110 int buffer_size;
aktk 16:c3920b5b8572 111
aktk 1:3a1fe94c6e42 112 // Look for the head of the line to want to remove
aktk 1:3a1fe94c6e42 113 removedLineHead = strstr(header_field_buffer, arg_field_name);
aktk 3:59884bc0a238 114 if(removedLineHead == NULL) return -1;
aktk 1:3a1fe94c6e42 115 // Look for the first "\r\n" which is the end of the line
aktk 1:3a1fe94c6e42 116 removedLineEnd = strstr(removedLineHead, "\r\n");
aktk 1:3a1fe94c6e42 117 removedLineEnd += 3; //pointing next line head or '\0' if the line of the last one.
aktk 1:3a1fe94c6e42 118 buffer_size = strlen(removedLineEnd);
aktk 16:c3920b5b8572 119
aktk 1:3a1fe94c6e42 120 for(int i = 0; i < buffer_size + 1; i++)
aktk 1:3a1fe94c6e42 121 removedLineHead[i] = removedLineEnd[i];
aktk 16:c3920b5b8572 122
aktk 1:3a1fe94c6e42 123 return 0;
aktk 1:3a1fe94c6e42 124 }
aktk 1:3a1fe94c6e42 125
aktk 0:cc483bea4fe3 126 int ResponseMessenger::getStatusCode()
aktk 0:cc483bea4fe3 127 {
aktk 0:cc483bea4fe3 128 return status_code;
aktk 0:cc483bea4fe3 129 }
aktk 0:cc483bea4fe3 130
aktk 0:cc483bea4fe3 131 char ResponseMessenger::sendHTTPResponse(
aktk 14:a16cdcd098d7 132 TCPSocket &arg_socket)
aktk 0:cc483bea4fe3 133 {
aktk 0:cc483bea4fe3 134 int err_log = 0;
aktk 0:cc483bea4fe3 135 int err_code = 0;
aktk 0:cc483bea4fe3 136 enum {
aktk 0:cc483bea4fe3 137 MAX_BUFFER_SIZE = 1024
aktk 0:cc483bea4fe3 138 };
aktk 0:cc483bea4fe3 139 char buffer[MAX_BUFFER_SIZE] = "\0";
aktk 0:cc483bea4fe3 140
aktk 0:cc483bea4fe3 141 //
aktk 0:cc483bea4fe3 142 // Header
aktk 0:cc483bea4fe3 143 //
aktk 6:4eb469f51570 144 printf("(RM) [send]Header\r\n");
aktk 0:cc483bea4fe3 145 // Status Line
aktk 0:cc483bea4fe3 146 sprintf(buffer, "%s %d %s\r\n", http_ver, status_code, reason_phrase);
aktk 0:cc483bea4fe3 147 buffer[MAX_BUFFER_SIZE - 1] = '\0';
aktk 14:a16cdcd098d7 148 err_log = arg_socket.send(buffer, strlen(buffer));
aktk 0:cc483bea4fe3 149 if(err_log < 0) err_code = ((err_code << 1) | 1);
aktk 0:cc483bea4fe3 150 // Response Header
aktk 14:a16cdcd098d7 151 err_log = arg_socket.send(header_field_buffer, strlen(header_field_buffer));
aktk 0:cc483bea4fe3 152 if(err_log < 0) err_code = ((err_code << 1) | 1);
aktk 0:cc483bea4fe3 153 // Blank line
aktk 14:a16cdcd098d7 154 err_log = arg_socket.send("\r\n", strlen("\r\n"));
aktk 0:cc483bea4fe3 155 if(err_log < 0) err_code = ((err_code << 1) | 1);
aktk 6:4eb469f51570 156 printf("(RM) [Header has sent]\r\n");
aktk 0:cc483bea4fe3 157 //return error code
aktk 0:cc483bea4fe3 158 return err_code << 2;
aktk 0:cc483bea4fe3 159
aktk 0:cc483bea4fe3 160 }
aktk 0:cc483bea4fe3 161
aktk 0:cc483bea4fe3 162 char ResponseMessenger::sendHTTPResponse(
aktk 14:a16cdcd098d7 163 TCPSocket &arg_socket,
aktk 0:cc483bea4fe3 164 FileHandler &arg_file)
aktk 0:cc483bea4fe3 165 {
aktk 0:cc483bea4fe3 166 int err_log = 0;
aktk 0:cc483bea4fe3 167 int err_code = 0;
aktk 0:cc483bea4fe3 168 enum {
aktk 0:cc483bea4fe3 169 MAX_BUFFER_SIZE = 1024
aktk 0:cc483bea4fe3 170 };
aktk 0:cc483bea4fe3 171 signed char buffer[MAX_BUFFER_SIZE];
aktk 0:cc483bea4fe3 172
aktk 0:cc483bea4fe3 173 //
aktk 0:cc483bea4fe3 174 // Header
aktk 0:cc483bea4fe3 175 //
aktk 14:a16cdcd098d7 176 err_code = sendHTTPResponse(arg_socket);
aktk 0:cc483bea4fe3 177 //
aktk 0:cc483bea4fe3 178 // Body
aktk 0:cc483bea4fe3 179 //
aktk 16:c3920b5b8572 180 printf("(RM) file: %d\r\n"
aktk 16:c3920b5b8572 181 "(RM) status code: %d\r\n", arg_file.arrival(), status_code);
aktk 0:cc483bea4fe3 182 if (arg_file.arrival() && status_code == 200) {
aktk 6:4eb469f51570 183 printf("(RM) [send]Body\r\n");
aktk 0:cc483bea4fe3 184 do {
aktk 0:cc483bea4fe3 185 int i = 0;
aktk 0:cc483bea4fe3 186 do {
aktk 0:cc483bea4fe3 187 buffer[i++] = arg_file.getc();//return a byte from file ponter, or -1 if EOF or ERROR
aktk 0:cc483bea4fe3 188 } while ((i < MAX_BUFFER_SIZE - 1) && (buffer[i - 1] != EOF));
aktk 0:cc483bea4fe3 189 if(buffer[i - 1] == EOF)buffer[i - 1] = '\0';
aktk 0:cc483bea4fe3 190 buffer[i] = '\0';
aktk 0:cc483bea4fe3 191 if (!arg_file.hasError()) {
aktk 14:a16cdcd098d7 192 err_log = arg_socket.send((char*)buffer, i);
aktk 6:4eb469f51570 193 //printf("(RM) buffer log: %s", buffer);
aktk 0:cc483bea4fe3 194 }
aktk 11:0ee7d100db24 195 if (arg_file.hasError()) printf("(RM)---[ERR]---\r\n");
aktk 11:0ee7d100db24 196 if (arg_file.atEOF()) printf("(RM)---[EOF]---\r\n");
aktk 0:cc483bea4fe3 197 } while (!arg_file.atEOF() && !arg_file.hasError());
aktk 6:4eb469f51570 198 printf("(RM) [Body has sent]\r\n");
aktk 0:cc483bea4fe3 199
aktk 0:cc483bea4fe3 200 if (err_log < 0) err_code = ((err_code) | 2);
aktk 0:cc483bea4fe3 201 if (!arg_file.hasError())err_code = ((err_code) | 1);
aktk 1:3a1fe94c6e42 202 } else {
aktk 6:4eb469f51570 203 printf("(RM) [No Body]\r\n");
aktk 0:cc483bea4fe3 204 }
aktk 0:cc483bea4fe3 205 return (char)err_code;
aktk 0:cc483bea4fe3 206 }