emailler/apps/ifttt.c

103 lines
1.7 KiB
C
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#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "../inc/ip65.h"
#include "ifttt.h"
static char url[2048];
static char download[2048];
static bool isclean(char c)
{
switch (c)
{
case '*':
case '-':
case '.':
case '_':
return true;
}
return false;
}
static void querystrcat(char* url, const char* val)
{
if (!val)
{
return;
}
url += strlen(url);
while (true)
{
if (isalnum(*val) || isclean(*val))
{
*url++ = *val++;
continue;
}
if (*val == ' ')
{
*url++ = '+';
++val;
continue;
}
if (*val == '\0')
{
*url = '\0';
break;
}
url += sprintf(url, "%%%02X", toascii(*val++));
}
}
// Trigger IFTTT maker event via webhook
//
// Inputs: key: Webhook key to use
// event: Maker event to trigger
// val1: Webhook parameter 'value1'
// val2: Webhook parameter 'value2'
// val3: Webhook parameter 'value3'
// Output: Webhook HTTP status code, -1 on error
//
int ifttt_trigger(const char* key, const char* event,
const char* val1, const char* val2, const char* val3)
{
char* ptr = url;
uint16_t len;
strcpy(url, "http://maker.ifttt.com/trigger/");
strcat(url, event);
strcat(url, "/with/key/");
strcat(url, key);
strcat(url, "?value1=");
querystrcat(url, val1);
strcat(url, "&value2=");
querystrcat(url, val2);
strcat(url, "&value3=");
querystrcat(url, val3);
while (*ptr)
{
*ptr = toascii(*ptr);
++ptr;
}
if (strlen(url) > 1400)
{
ip65_error = IP65_ERROR_MALFORMED_URL;
return -1;
}
len = url_download(url, download, sizeof(download));
if (len < 12)
{
return -1;
}
return atoi(download + 9);
}