first commit

RTL00_SDKV35a/component/common/utilities/http_client.c

@@ -0,0 +1,137 @@
+//#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;
+}