rtl00TstMinAmebaV35a/component/common/utilities/http_client.c
2016-09-23 07:21:45 +03:00

137 lines
3.2 KiB
C

//#include <stdio.h>
//#include <stdlib.h>
//#include <string.h>
#include "platform/platform_stdlib.h"
#include "FreeRTOS.h"
const char * http_strstr(const char *str1, const char *str2) {
char *a, *b;
/* First scan quickly through the two strings looking for a
* single-character match. When it's found, then compare the
* rest of the substring.
*/
b = (char *)str2;
if (*b == 0) {
return str1;
}
for ( ; *str1 != 0; str1 += 1) {
if (*str1 != *b) {
continue;
}
a = (char *)str1;
while (1) {
if (*b == 0) {
return str1;
}
if (*a++ != *b++) {
break;
}
}
b = (char *)str2;
}
return (char *) 0;
}
static void* http_malloc(unsigned int size)
{
return pvPortMalloc(size);
}
void http_free(void *buf)
{
vPortFree(buf);
}
static char *http_itoa(int value)
{
char *val_str;
int tmp = value, len = 1;
while((tmp /= 10) > 0)
len ++;
val_str = (char *) http_malloc(len + 1);
sprintf(val_str, "%d", value);
return val_str;
}
char *http_post_header(char *host, char *resource, char *type, int data_len)
{
char *len_str = http_itoa(data_len);
char *header = (char *) http_malloc(strlen("POST ") + strlen(resource) + strlen(" HTTP/1.1\r\nHost: ") + strlen(host) +
strlen("\r\nContent-Type: ") + strlen(type) + strlen("\r\nContent-Length: ") + strlen(len_str) + strlen("\r\n\r\n") + 1);
sprintf(header, "POST %s HTTP/1.1\r\nHost: %s\r\nContent-Type: %s\r\nContent-Length: %s\r\n\r\n", resource, host, type, len_str);
http_free(len_str);
return header;
}
char *http_get_header(char *host, char *resource)
{
char *header = (char *) http_malloc(strlen("GET ") + strlen(resource) + strlen(" HTTP/1.1\r\nHost: ") + strlen(host) + strlen("\r\n\r\n") + 1);
sprintf(header, "GET %s HTTP/1.1\r\nHost: %s\r\n\r\n", resource, host);
return header;
}
char *http_response_header(char *buf, int response_len)
{
char *http_response, *http_header = NULL, *header_end;
int header_len;
http_response = (char *) http_malloc(response_len + 1);
memcpy(http_response, buf, response_len);
http_response[response_len] = '\0';
if(strncmp(http_response, "HTTP", 4) == 0) {
if((header_end = (char *)http_strstr(http_response, "\r\n\r\n")) != NULL) {
header_end += 4;
header_len = header_end - http_response;
http_header = (char *) http_malloc(header_len + 1);
memcpy(http_header, http_response, header_len);
http_header[header_len] = '\0';
}
}
http_free(http_response);
return http_header;
}
char *http_response_body(char *buf, int response_len)
{
char *http_response, *http_body = NULL, *body_start;
int body_len;
http_response = (char *) http_malloc(response_len + 1);
memcpy(http_response, buf, response_len);
http_response[response_len] = '\0';
if(strncmp(http_response, "HTTP", 4) == 0) {
if((body_start = (char *)http_strstr(http_response, "\r\n\r\n")) != NULL) {
body_start += 4;
body_len = http_response + response_len - body_start;
if(body_len > 0) {
http_body = (char *) http_malloc(body_len + 1);
memcpy(http_body, body_start, body_len);
http_body[body_len] = '\0';
}
http_free(http_response);
}
else {
http_body = http_response;
}
}
else {
http_body = http_response;
}
return http_body;
}