📄 http.c

📁 D:My DocumentszqARM压缩包OpenSource_49.rar
💻 C
📖 第 1 页 / 共 2 页
字号:
上一页 12
//
//********************************************************************************************
BYTE http_get_variable ( BYTE *rxtx_buffer, WORD dlength, PGM_P val_key, BYTE *dest )
{
	WORD data_p;
	PGM_P key;
	BYTE match=0, temp;

	key = val_key;
	
	// get data position
	data_p = tcp_get_hlength( rxtx_buffer ) + sizeof(ETH_HEADER) + sizeof(IP_HEADER);

	// Find '?' in rx buffer, if found '?' in rx buffer then let's find variable key (val_key)
	for ( ; data_p<dlength; data_p++ )
	{
		if ( rxtx_buffer [ data_p ] == '?' )
			break;
	}
	// not found '?' in buffer
	if ( data_p == dlength )
		return 0;
	
	// find variable key in buffer 
	for ( ; data_p<dlength; data_p++ )
	{
		temp = pgm_read_byte ( key );

		// end of variable keyword
		if ( rxtx_buffer [ data_p ] == '=' && match != 0 )
		{
			if ( temp == '\0' )
			{
				data_p++;
				break;
			}
		}
		// variable keyword match with rx buffer
		if ( rxtx_buffer [ data_p ] == temp )
		{
			key++;
			match++;
		}
		else
		{
			// no match in rx buffer reset match and find again
			key = val_key;
			match = 0;
		}
	}
	
	// if found variable keyword, then store variable value in destination buffer ( dest )
	if ( match != 0 )
	{
		match = 0;

		for ( ;; )
		{
			// end of variable value break from loop
			if ( rxtx_buffer [ data_p ] == '&' || rxtx_buffer [ data_p ] == ' ' )
			{
				dest [ match ] = '\0';
				break;
			}
			dest [ match ] = rxtx_buffer [ data_p ];
			match++;
			data_p++;
		}
	}

	// return with variable value length
	return match;
}
//********************************************************************************************
//
// Function : hex2int
// Description : convert a single hex digit character to its integer value
//
//********************************************************************************************
unsigned char hex2int(char c)
{
	if (c >= '0' && c <='9')
		return((unsigned char)c - '0');

	if (c >= 'a' && c <='f')
		return((unsigned char)c - 'a' + 10);
	
	if (c >= 'A' && c <='F')
		return((unsigned char)c - 'A' + 10);

	return 0;
}
//********************************************************************************************
//
// Function : urldecode
// Description : decode a url string e.g "hello%20joe" or "hello+joe" becomes "hello joe"
//
//********************************************************************************************
void urldecode(unsigned char *urlbuf)
{
	unsigned char c;
	unsigned char *dst;

	dst=urlbuf;
	while ((c = *urlbuf))
	{
		if (c == '+') c = ' ';
		if (c == '%')
		{
			urlbuf++;
			c = *urlbuf;
			urlbuf++;
			c = (hex2int(c) << 4) | hex2int(*urlbuf);
		}
		*dst = c;
		dst++;
		urlbuf++;
	}
	*dst = '\0';
}
//*****************************************************************************************
//
// Function : http_put_request
// Description : put http request to tx buffer contain 2-variables pwd and temp.
// webserver receive pwd, temp and save to text file by PHP script on webserver.
//
//*****************************************************************************************
WORD http_put_request ( BYTE *rxtx_buffer )
{
	BYTE temp_value;
	WORD dlength;
	BYTE generic_buf[64];
	
	temp_value = adc_read_temp();
	print_decimal ( generic_buf, 2, temp_value );
	generic_buf[ 2 ] = '\0';

	dlength = tcp_puts_data_p ( rxtx_buffer, PSTR ( "GET /avrnet/save.php?pwd=secret&temp=" ), 0 );
	dlength = tcp_puts_data ( rxtx_buffer, (BYTE *)generic_buf, dlength );
	dlength = tcp_puts_data_p ( rxtx_buffer, PSTR ( " HTTP/1.0\r\n" ), dlength );
	dlength = tcp_puts_data_p ( rxtx_buffer, PSTR ( "Host: 10.1.1.76\r\n" ), dlength );
	dlength = tcp_puts_data_p ( rxtx_buffer, PSTR ( "User-Agent: AVR ethernet\r\n" ), dlength );
	dlength = tcp_puts_data_p ( rxtx_buffer, PSTR ( "Accept: text/html\r\n" ), dlength );
	dlength = tcp_puts_data_p ( rxtx_buffer, PSTR ( "Keep-Alive: 300\r\n" ), dlength );
	dlength = tcp_puts_data_p ( rxtx_buffer, PSTR ( "Connection: keep-alive\r\n\r\n" ), dlength );

	return dlength;
}
//*****************************************************************************************
//
// Function : http_home
// Description : prepare the webpage by writing the data to the tcp send buffer
//
//*****************************************************************************************WORD http_home( BYTE *rxtx_buffer ){	WORD dlen, adc0_value;
	BYTE temp_value;
	BYTE count_time_temp[3];
	BYTE generic_buf[64];

	dlen = tcp_puts_data_p ( rxtx_buffer, PSTR ( "HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n" ), 0 );	dlen = tcp_puts_data_p ( rxtx_buffer, PSTR  ( "<title>" ), dlen );
	dlen = tcp_puts_data_p ( rxtx_buffer, (PGM_P)web_title, dlen );
	dlen = tcp_puts_data_p ( rxtx_buffer, PSTR ( "</title>" ), dlen );

	dlen = tcp_puts_data_p ( rxtx_buffer, PSTR ( "<a href=\"http://www.avrportal.com/\" target=\"_blank\"><b><font color=\"#000099\" size=\"+1\">" ), dlen );
	dlen = tcp_puts_data_p ( rxtx_buffer, (PGM_P)web_title, dlen );
	dlen = tcp_puts_data_p ( rxtx_buffer, PSTR ( "</font></b></a><br>" ), dlen );

	dlen = tcp_puts_data_p ( rxtx_buffer, (PGM_P)tag_hr, dlen );

	dlen = tcp_puts_data_p ( rxtx_buffer, PSTR ( "LED 1 : " ), dlen );
	if ( (LED_PORT & _BV ( LED_PIN1 )) )
		dlen = tcp_puts_data_p ( rxtx_buffer, PSTR ( "<font color=red>OFF" ), dlen );
	else
		dlen = tcp_puts_data_p ( rxtx_buffer, PSTR ( "<font color=green>ON" ), dlen );
	dlen = tcp_puts_data_p ( rxtx_buffer, PSTR ( "</font> [ <a href=\"./?l1=" ), dlen );
	if ( (LED_PORT & _BV ( LED_PIN1 )) )
		dlen = tcp_puts_data_p ( rxtx_buffer, PSTR ( "1\">ON" ), dlen );
	else
		dlen = tcp_puts_data_p ( rxtx_buffer, PSTR ( "0\">OFF" ), dlen );
	dlen = tcp_puts_data_p ( rxtx_buffer, PSTR ( "</a> ], LED 2 : " ), dlen );
	if ( (LED_PORT & _BV ( LED_PIN2 )) )
		dlen = tcp_puts_data_p ( rxtx_buffer, PSTR ( "<font color=red>OFF" ), dlen );
	else
		dlen = tcp_puts_data_p ( rxtx_buffer, PSTR ( "<font color=green>ON" ), dlen );
	dlen = tcp_puts_data_p ( rxtx_buffer, PSTR ( "</font> [ <a href=\"./?l2=" ), dlen );
	if ( (LED_PORT & _BV ( LED_PIN2 )) )
		dlen = tcp_puts_data_p ( rxtx_buffer, PSTR ( "1\">ON" ), dlen );
	else
		dlen = tcp_puts_data_p ( rxtx_buffer, PSTR ( "0\">OFF" ), dlen );

	dlen = tcp_puts_data_p ( rxtx_buffer, PSTR ( "</a> ]<br><br>" ), dlen );
	// read adc0
	dlen = tcp_puts_data_p ( rxtx_buffer, PSTR ( "ACD0 = " ), dlen );
	adc0_value = adc_read ( 0 );
	print_decimal ( generic_buf, 4, adc0_value );
	generic_buf[ 4 ] = '\0';
	dlen = tcp_puts_data ( rxtx_buffer, (BYTE *)generic_buf, dlen );
	
	// read temp
	dlen = tcp_puts_data_p ( rxtx_buffer, PSTR ( "<br><br>Temparature = " ), dlen );
	temp_value = adc_read_temp();
	print_decimal ( generic_buf, 2, temp_value );
	generic_buf[ 2 ] = '\0';
	dlen = tcp_puts_data ( rxtx_buffer, (BYTE *)generic_buf, dlen );
	dlen = tcp_puts_data_p ( rxtx_buffer, PSTR ( "&deg;C<br>" ), dlen );

	dlen = tcp_puts_data_p ( rxtx_buffer, (PGM_P)tag_form, dlen );
	dlen = tcp_puts_data_p ( rxtx_buffer, PSTR ( "<INPUT TYPE=\"hidden\" NAME=\"tc\" VALUE=\"1\">Send Temparature in <INPUT TYPE=\"checkbox\" NAME=\"en\"" ), dlen );
	eeprom_read_block ( count_time_temp, ee_count_time, 3 );
	if ( count_time_temp[0] )
		dlen = tcp_puts_data_p ( rxtx_buffer, PSTR ( "CHECKED" ), dlen );
	dlen = tcp_puts_data_p ( rxtx_buffer, PSTR ( "> Enable " ), dlen );
	dlen = tcp_puts_data_p ( rxtx_buffer, PSTR ( "<INPUT TYPE=\"text\" NAME=\"h\" size=\"2\" maxlength=\"2\" VALUE=\"" ), dlen );
	print_decimal ( generic_buf, 2, count_time_temp[1] );
	generic_buf[ 2 ] = '\0';
	dlen = tcp_puts_data ( rxtx_buffer, (BYTE *)generic_buf, dlen );
	dlen = tcp_puts_data_p ( rxtx_buffer, PSTR ( "\"> Hours <INPUT TYPE=\"text\" NAME=\"m\" size=\"2\" maxlength=\"2\" VALUE=\"" ), dlen );
	print_decimal ( generic_buf, 2, count_time_temp[2] );
	generic_buf[ 2 ] = '\0';
	dlen = tcp_puts_data ( rxtx_buffer, (BYTE *)generic_buf, dlen );
	dlen = tcp_puts_data_p ( rxtx_buffer, PSTR ( "\"> Minutes<input type=\"submit\" value=\"OK\"></form>" ), dlen );

	dlen = tcp_puts_data_p ( rxtx_buffer, (PGM_P) tag_form, dlen );
	dlen = tcp_puts_data_p ( rxtx_buffer, PSTR ( "<input name=\"aip\" type=\"text\" size=\"15\" maxlength=\"15\" value=\"" ), dlen );
	print_ip ( generic_buf, (BYTE*)&avr_ip, 0 );
	dlen = tcp_puts_data ( rxtx_buffer, (BYTE *)generic_buf, dlen );
	dlen = tcp_puts_data_p ( rxtx_buffer, PSTR ( "\"> <input type=\"submit\" value=\"AVR IP\"></form>" ), dlen );

	dlen = tcp_puts_data_p ( rxtx_buffer, (PGM_P)tag_form, dlen );
	dlen = tcp_puts_data_p ( rxtx_buffer, PSTR ( "<input name=\"sip\" type=\"text\" size=\"15\" maxlength=\"15\" value=\"" ), dlen );
	print_ip ( generic_buf, (BYTE*)&server_ip, 0 );
	dlen = tcp_puts_data ( rxtx_buffer, (BYTE *)generic_buf, dlen );
	dlen = tcp_puts_data_p ( rxtx_buffer, PSTR ( "\"> <input type=\"submit\" value=\"Server IP\"></form>" ), dlen );

	dlen = tcp_puts_data_p ( rxtx_buffer, (PGM_P) tag_form, dlen );
	dlen = tcp_puts_data_p ( rxtx_buffer, PSTR ( "<input name=\"lcd1\" type=\"text\" size=\"16\" maxlength=\"16\"> LCD Line 1<br>" ), dlen );
	dlen = tcp_puts_data_p ( rxtx_buffer, PSTR ( "<input name=\"lcd2\" type=\"text\" size=\"16\" maxlength=\"16\"> LCD Line 2<br>" ), dlen );
	dlen = tcp_puts_data_p ( rxtx_buffer, PSTR ( "<input type=\"submit\" value=\"Write LCD\"></form>" ), dlen );
	
	dlen = tcp_puts_data_p ( rxtx_buffer, (PGM_P)tag_hr, dlen );

	dlen = tcp_puts_data_p ( rxtx_buffer, PSTR ( "<a href=\"./\"><b><font color=\"#000099\" size=\"+1\">Refresh</font></b></a>" ), dlen );

	return(dlen);}
上一页 12
💿 文件大小 308 K
👤 上传用户 boobyb
📂 所属分类微处理器开发
🏷️ 相关标签

#DocumentszqARM #OpenSource #My
⌨️ 快捷键说明

复制代码 Ctrl + C
搜索代码 Ctrl + F
全屏模式 F11
切换主题 Ctrl + Shift + D
显示快捷键 ?
增大字号 Ctrl + =
减小字号 Ctrl + -