phs fan
/
PHSShield_test
see: https://developer.mbed.org/users/phsfan/notebook/phsshield/
TinyHTTP_a3gs.cpp@0:864cc2bec4bf, 2015-03-10 (annotated)
- Committer:
- phsfan
- Date:
- Tue Mar 10 01:18:38 2015 +0000
- Revision:
- 0:864cc2bec4bf
1st build
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
phsfan | 0:864cc2bec4bf | 1 | /* |
phsfan | 0:864cc2bec4bf | 2 | * mbed Tiny HTTP Client for Ethernet Interface Library |
phsfan | 0:864cc2bec4bf | 3 | * Copyright (c) 2012 Hiroshi Suga |
phsfan | 0:864cc2bec4bf | 4 | * Released under the MIT License: http://mbed.org/license/mit |
phsfan | 0:864cc2bec4bf | 5 | */ |
phsfan | 0:864cc2bec4bf | 6 | |
phsfan | 0:864cc2bec4bf | 7 | /** @file |
phsfan | 0:864cc2bec4bf | 8 | * @brief Tiny HTTP Client |
phsfan | 0:864cc2bec4bf | 9 | */ |
phsfan | 0:864cc2bec4bf | 10 | |
phsfan | 0:864cc2bec4bf | 11 | #include "mbed.h" |
phsfan | 0:864cc2bec4bf | 12 | #include "TinyHTTP_a3gs.h" |
phsfan | 0:864cc2bec4bf | 13 | #include "a3gs.h" |
phsfan | 0:864cc2bec4bf | 14 | #include <ctype.h> |
phsfan | 0:864cc2bec4bf | 15 | |
phsfan | 0:864cc2bec4bf | 16 | //#define DEBUG |
phsfan | 0:864cc2bec4bf | 17 | |
phsfan | 0:864cc2bec4bf | 18 | extern A3GS a3gs; |
phsfan | 0:864cc2bec4bf | 19 | static onHttpReceiveFunc onHttpReceive = NULL; |
phsfan | 0:864cc2bec4bf | 20 | |
phsfan | 0:864cc2bec4bf | 21 | // Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com) |
phsfan | 0:864cc2bec4bf | 22 | int base64enc(const char *input, unsigned int length, char *output, int len) { |
phsfan | 0:864cc2bec4bf | 23 | static const char base64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; |
phsfan | 0:864cc2bec4bf | 24 | unsigned int c, c1, c2, c3; |
phsfan | 0:864cc2bec4bf | 25 | |
phsfan | 0:864cc2bec4bf | 26 | if (len < ((((length-1)/3)+1)<<2)) return -1; |
phsfan | 0:864cc2bec4bf | 27 | for(unsigned int i = 0, j = 0; i<length; i+=3,j+=4) { |
phsfan | 0:864cc2bec4bf | 28 | c1 = ((((unsigned char)*((unsigned char *)&input[i])))); |
phsfan | 0:864cc2bec4bf | 29 | c2 = (length>i+1)?((((unsigned char)*((unsigned char *)&input[i+1])))):0; |
phsfan | 0:864cc2bec4bf | 30 | c3 = (length>i+2)?((((unsigned char)*((unsigned char *)&input[i+2])))):0; |
phsfan | 0:864cc2bec4bf | 31 | |
phsfan | 0:864cc2bec4bf | 32 | c = ((c1 & 0xFC) >> 2); |
phsfan | 0:864cc2bec4bf | 33 | output[j+0] = base64[c]; |
phsfan | 0:864cc2bec4bf | 34 | c = ((c1 & 0x03) << 4) | ((c2 & 0xF0) >> 4); |
phsfan | 0:864cc2bec4bf | 35 | output[j+1] = base64[c]; |
phsfan | 0:864cc2bec4bf | 36 | c = ((c2 & 0x0F) << 2) | ((c3 & 0xC0) >> 6); |
phsfan | 0:864cc2bec4bf | 37 | output[j+2] = (length>i+1)?base64[c]:'='; |
phsfan | 0:864cc2bec4bf | 38 | c = (c3 & 0x3F); |
phsfan | 0:864cc2bec4bf | 39 | output[j+3] = (length>i+2)?base64[c]:'='; |
phsfan | 0:864cc2bec4bf | 40 | } |
phsfan | 0:864cc2bec4bf | 41 | output[(((length-1)/3)+1)<<2] = '\0'; |
phsfan | 0:864cc2bec4bf | 42 | return 0; |
phsfan | 0:864cc2bec4bf | 43 | } |
phsfan | 0:864cc2bec4bf | 44 | |
phsfan | 0:864cc2bec4bf | 45 | // Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com) |
phsfan | 0:864cc2bec4bf | 46 | int urlencode(char *str, char *buf, int len) { |
phsfan | 0:864cc2bec4bf | 47 | static const char to_hex[] = "0123456789ABCDEF"; |
phsfan | 0:864cc2bec4bf | 48 | // char *pstr = str, *buf = (char*)malloc(strlen(str) * 3 + 1), *pbuf = buf; |
phsfan | 0:864cc2bec4bf | 49 | char *pstr = str, *pbuf = buf; |
phsfan | 0:864cc2bec4bf | 50 | |
phsfan | 0:864cc2bec4bf | 51 | if (len < (strlen(str) * 3 + 1)) return -1; |
phsfan | 0:864cc2bec4bf | 52 | while (*pstr) { |
phsfan | 0:864cc2bec4bf | 53 | if (isalnum(*pstr) || *pstr == '-' || *pstr == '_' || *pstr == '.' || *pstr == '~') { |
phsfan | 0:864cc2bec4bf | 54 | *pbuf++ = *pstr; |
phsfan | 0:864cc2bec4bf | 55 | } else if (*pstr == ' ') { |
phsfan | 0:864cc2bec4bf | 56 | *pbuf++ = '+'; |
phsfan | 0:864cc2bec4bf | 57 | } else { |
phsfan | 0:864cc2bec4bf | 58 | *pbuf++ = '%'; |
phsfan | 0:864cc2bec4bf | 59 | *pbuf++ = to_hex[(*pstr >> 4) & 0x0f]; |
phsfan | 0:864cc2bec4bf | 60 | *pbuf++ = to_hex[*pstr & 0x0f]; |
phsfan | 0:864cc2bec4bf | 61 | } |
phsfan | 0:864cc2bec4bf | 62 | pstr++; |
phsfan | 0:864cc2bec4bf | 63 | } |
phsfan | 0:864cc2bec4bf | 64 | *pbuf = '\0'; |
phsfan | 0:864cc2bec4bf | 65 | return 0; |
phsfan | 0:864cc2bec4bf | 66 | } |
phsfan | 0:864cc2bec4bf | 67 | |
phsfan | 0:864cc2bec4bf | 68 | void createauth (char *user, char *pwd, char *buf, int len) { |
phsfan | 0:864cc2bec4bf | 69 | char tmp[80]; |
phsfan | 0:864cc2bec4bf | 70 | |
phsfan | 0:864cc2bec4bf | 71 | strncpy(buf, "Authorization: Basic ", len); |
phsfan | 0:864cc2bec4bf | 72 | snprintf(tmp, sizeof(tmp), "%s:%s", user, pwd); |
phsfan | 0:864cc2bec4bf | 73 | base64enc(tmp, strlen(tmp), &buf[strlen(buf)], len - strlen(buf)); |
phsfan | 0:864cc2bec4bf | 74 | strncat(buf, "\r\n", len - strlen(buf)); |
phsfan | 0:864cc2bec4bf | 75 | } |
phsfan | 0:864cc2bec4bf | 76 | |
phsfan | 0:864cc2bec4bf | 77 | int httpRequest (int method, char *host, int port, char *uri, char *head, char *body, onHttpReceiveFunc func) { |
phsfan | 0:864cc2bec4bf | 78 | char buf[1000]; |
phsfan | 0:864cc2bec4bf | 79 | int i, ret = -1; |
phsfan | 0:864cc2bec4bf | 80 | |
phsfan | 0:864cc2bec4bf | 81 | onHttpReceive = func; |
phsfan | 0:864cc2bec4bf | 82 | |
phsfan | 0:864cc2bec4bf | 83 | if (a3gs.connectTCP(host, port)) return -1; |
phsfan | 0:864cc2bec4bf | 84 | |
phsfan | 0:864cc2bec4bf | 85 | #ifdef DEBUG |
phsfan | 0:864cc2bec4bf | 86 | printf("connected\r\n"); |
phsfan | 0:864cc2bec4bf | 87 | #endif |
phsfan | 0:864cc2bec4bf | 88 | |
phsfan | 0:864cc2bec4bf | 89 | // send request |
phsfan | 0:864cc2bec4bf | 90 | if (method == METHOD_POST) { |
phsfan | 0:864cc2bec4bf | 91 | a3gs.write((uint8_t*)"POST ", 5); |
phsfan | 0:864cc2bec4bf | 92 | } else { |
phsfan | 0:864cc2bec4bf | 93 | a3gs.write((uint8_t*)"GET ", 4); |
phsfan | 0:864cc2bec4bf | 94 | } |
phsfan | 0:864cc2bec4bf | 95 | a3gs.write((uint8_t*)uri, strlen(uri)); |
phsfan | 0:864cc2bec4bf | 96 | a3gs.write((uint8_t*)" HTTP/1.1\r\nHost: ", 17); |
phsfan | 0:864cc2bec4bf | 97 | a3gs.write((uint8_t*)host, strlen(host)); |
phsfan | 0:864cc2bec4bf | 98 | a3gs.write((uint8_t*)"\r\n", 2); |
phsfan | 0:864cc2bec4bf | 99 | a3gs.write((uint8_t*)"Connection: close\r\n", 19); |
phsfan | 0:864cc2bec4bf | 100 | if (head) { |
phsfan | 0:864cc2bec4bf | 101 | a3gs.write((uint8_t*)head, strlen(head)); |
phsfan | 0:864cc2bec4bf | 102 | } |
phsfan | 0:864cc2bec4bf | 103 | if (method == METHOD_POST) { |
phsfan | 0:864cc2bec4bf | 104 | sprintf(buf, "Content-Length: %d\r\n", strlen(body)); |
phsfan | 0:864cc2bec4bf | 105 | a3gs.write((uint8_t*)buf, strlen(buf)); |
phsfan | 0:864cc2bec4bf | 106 | } |
phsfan | 0:864cc2bec4bf | 107 | a3gs.write((uint8_t*)"\r\n", 2); |
phsfan | 0:864cc2bec4bf | 108 | |
phsfan | 0:864cc2bec4bf | 109 | // post method |
phsfan | 0:864cc2bec4bf | 110 | if (method == METHOD_POST && body) { |
phsfan | 0:864cc2bec4bf | 111 | a3gs.write((uint8_t*)body, strlen(body)); |
phsfan | 0:864cc2bec4bf | 112 | } |
phsfan | 0:864cc2bec4bf | 113 | |
phsfan | 0:864cc2bec4bf | 114 | printf("wait for response\r\n"); |
phsfan | 0:864cc2bec4bf | 115 | // recv |
phsfan | 0:864cc2bec4bf | 116 | int err = 0; |
phsfan | 0:864cc2bec4bf | 117 | for (;;) { |
phsfan | 0:864cc2bec4bf | 118 | i = a3gs.read(buf, sizeof(buf) - 1); |
phsfan | 0:864cc2bec4bf | 119 | if (i <= 0) break; |
phsfan | 0:864cc2bec4bf | 120 | |
phsfan | 0:864cc2bec4bf | 121 | if (onHttpReceive != NULL) onHttpReceive(buf, i); |
phsfan | 0:864cc2bec4bf | 122 | } |
phsfan | 0:864cc2bec4bf | 123 | ret = 0; |
phsfan | 0:864cc2bec4bf | 124 | |
phsfan | 0:864cc2bec4bf | 125 | a3gs.disconnectTCP(); |
phsfan | 0:864cc2bec4bf | 126 | |
phsfan | 0:864cc2bec4bf | 127 | return ret; |
phsfan | 0:864cc2bec4bf | 128 | } |