private fork
Fork of GSwifiInterface by
Diff: GSwifi/GSwifi_http.cpp
- Revision:
- 8:64184a968e3b
- Child:
- 11:71d67fea5ace
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/GSwifi/GSwifi_http.cpp Thu Oct 31 06:41:45 2013 +0000 @@ -0,0 +1,175 @@ +/* Copyright (C) 2013 gsfan, MIT License + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of this software + * and associated documentation files (the "Software"), to deal in the Software without restriction, + * including without limitation the rights to use, copy, modify, merge, publish, distribute, + * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all copies or + * substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING + * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#include "GSwifi.h" + +int GSwifi::httpGet (const char *host, int port, const char *uri, bool ssl, const char *user, const char *pwd) { + char ip[17]; + int cid; + + if (getHostByName(host, ip)) return -1; + if (! port) { + if (ssl) { + port = 443; + } else { + port = 80; + } + } + + if (cmdHTTPCONF(3, "close")) return -1; // Connection + cmdHTTPCONFDEL(5); + cmdHTTPCONFDEL(7); + cmdHTTPCONF(11, host); // Host + if (user && pwd) { + char tmp[CFG_CMD_SIZE], tmp2[CFG_CMD_SIZE]; + snprintf(tmp, sizeof(tmp), "%s:%s", user, pwd); + base64encode(tmp, strlen(tmp), tmp2, sizeof(tmp2)); + sprintf(tmp, "Basic %s", tmp2); + cmdHTTPCONF(2, tmp); // Authorization + } else { + cmdHTTPCONFDEL(2); + } + + if (cmdHTTPOPEN(ip, port, ssl)) return -1; + if (_state.cid < 0) return -1; + cid = _state.cid; + _con[cid].protocol = PROTO_HTTPGET; + _con[cid].type = TYPE_CLIENT; + + cmdHTTPSEND(cid, false, uri); // GET + return cid; +} + +int GSwifi::httpPost (const char *host, int port, const char *uri, const char *body, bool ssl, const char *user, const char *pwd) { + char cmd[CFG_CMD_SIZE]; + char ip[17]; + int cid, len; + + if (getHostByName(host, ip)) return -1; + if (! port) { + if (ssl) { + port = 443; + } else { + port = 80; + } + } + len = strlen(body); + + if (cmdHTTPCONF(3, "close")) return -1; // Connection + sprintf(cmd, "%d", len); + cmdHTTPCONF(5, cmd); // Content-Length + cmdHTTPCONF(7, "application/x-www-form-urlencoded"); // Content-type + cmdHTTPCONF(11, host); // Host + if (user && pwd) { + char tmp[CFG_CMD_SIZE], tmp2[CFG_CMD_SIZE]; + snprintf(tmp, sizeof(tmp), "%s:%s", user, pwd); + base64encode(tmp, strlen(tmp), tmp2, sizeof(tmp2)); + sprintf(tmp, "Basic %s", tmp2); + cmdHTTPCONF(2, tmp); // Authorization + } else { + cmdHTTPCONFDEL(2); + } + + if (cmdHTTPOPEN(ip, port, ssl)) return -1; + if (_state.cid < 0) return -1; + cid = _state.cid; + _con[cid].protocol = PROTO_HTTPPOST; + _con[cid].type = TYPE_CLIENT; + + cmdHTTPSEND(cid, true, uri, len); // POST + sprintf(cmd, "\x1bH%X", cid); + sendData(body, len, DEFAULT_WAIT_RESP_TIMEOUT, cmd); + return cid; +} + + + +/* base64encode code from + * Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com) + */ +int GSwifi::base64encode (const char *input, int length, char *output, int len) { + static const char base64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; + unsigned int c, c1, c2, c3; + + if (len < ((((length-1)/3)+1)<<2)) return -1; + for(unsigned int i = 0, j = 0; i<length; i+=3,j+=4) { + c1 = ((((unsigned char)*((unsigned char *)&input[i])))); + c2 = (length>i+1)?((((unsigned char)*((unsigned char *)&input[i+1])))):0; + c3 = (length>i+2)?((((unsigned char)*((unsigned char *)&input[i+2])))):0; + + c = ((c1 & 0xFC) >> 2); + output[j+0] = base64[c]; + c = ((c1 & 0x03) << 4) | ((c2 & 0xF0) >> 4); + output[j+1] = base64[c]; + c = ((c2 & 0x0F) << 2) | ((c3 & 0xC0) >> 6); + output[j+2] = (length>i+1)?base64[c]:'='; + c = (c3 & 0x3F); + output[j+3] = (length>i+2)?base64[c]:'='; + } + output[(((length-1)/3)+1)<<2] = '\0'; + return 0; +} + + +/* urlencode code from + * Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com) + */ +int GSwifi::urlencode (const char *str, char *buf, int len) { +// char *pstr = str, *buf = (char*)malloc(strlen(str) * 3 + 1), *pbuf = buf; + const char *pstr = str; + char *pbuf = buf; + + if (len < (strlen(str) * 3 + 1)) return -1; + while (*pstr) { + if (isalnum(*pstr) || *pstr == '-' || *pstr == '_' || *pstr == '.' || *pstr == '~') + *pbuf++ = *pstr; + else if (*pstr == ' ') + *pbuf++ = '+'; + else + *pbuf++ = '%', *pbuf++ = to_hex(*pstr >> 4), *pbuf++ = to_hex(*pstr & 15); + pstr++; + } + *pbuf = '\0'; + return 0; +} + +/* urldecode code from + * Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com) + */ +int GSwifi::urldecode (const char *str, char *buf, int len) { +// char *pstr = str, *buf = (char*)malloc(strlen(str) + 1), *pbuf = buf; + const char *pstr = str; + char *pbuf = buf; + + if (len < (strlen(str) / 3 - 1)) return -1; + while (*pstr) { + if (*pstr == '%') { + if (pstr[1] && pstr[2]) { + *pbuf++ = from_hex(pstr[1]) << 4 | from_hex(pstr[2]); + pstr += 2; + } + } else if (*pstr == '+') { + *pbuf++ = ' '; + } else { + *pbuf++ = *pstr; + } + pstr++; + } + *pbuf = '\0'; + return 0; +}