void CGI::processCGIData()
{
QString request_method;
// retrieve request method
request_method = getenv("REQUEST_METHOD");
// what is the request method (POST and GET supported)
if (request_method == "POST")
{
// determine the length of the data
QString content_length_str = getenv("CONTENT_LENGTH");
int content_length = content_length_str.toInt();
// allocate a buffer to hold the query
char* query_str = new char[content_length + 1];
// open the data stream
Q3TextStream postStream(stdin, QIODevice::ReadOnly);
// set the encoding (required for readRawBytes to work)
postStream.setEncoding(Q3TextStream::Latin1);
// read the data into the allocated buffer
postStream.readRawBytes(query_str, content_length);
// make sure to NULL terminate the string
query_str[content_length] = '\0';
// store the data
query_string = query_str;
// delete the temporary buffer
delete query_str;
}
else if (request_method == "GET")
{
query_string = getenv("QUERY_STRING");
}
else
query_string = "";
// if there is a query string, proces the arguments from it.
if (!query_string.isEmpty())
{
QString name = "";
QString value = "";
int index = 0;
int oldindex = 0;
// frequently used regular expressions
QRegExp paramEndExp("[&;]");
QRegExp paramPlusExp("\\+");
// iterate over the string finding name/value pairs
do
{
// find the end of the parameter name (ends at '=')
index = query_string.find('=', oldindex);
if (index == -1)
break;
// extract the name from the query string
name = query_string.mid(oldindex, (index - oldindex));
// replace +'s with spaces
name.replace(paramPlusExp, " ");
// unescape the string
name = unescapeURL(name);
// the new place to search from
oldindex = index + 1;
// find the end of the parameter pair (ends at '&')
index = query_string.find(paramEndExp, oldindex);
// extract the value from the query_string
if (index != -1)
value = query_string.mid(oldindex, (index - oldindex));
else
value = query_string.mid(oldindex, (query_string.length() - oldindex));
// replace +'s with spaces
value.replace(paramPlusExp, " ");
// unescape the string
value = unescapeURL(value);
// the new oldindex
oldindex = index + 1;
if (value.isNull())
value = "";
// insert the parameter into the parameter list
cgiParams.append(new CGIParam(name, value));
}
while (index != -1); // while not out of parameters
}
}
int main()
{
setbuf(stdout, NULL); // no buffering for this filehandle
char json[1024];
int content_length;
int response_code;
char buf[1024];
float amb_temp;
setupEthernet();
// set time
lcd.printf("Reading Time... ");
ntp.setTime("time-c.nist.gov");
lcd.printf("Time set");
while(1) { // Loop
char streamName[] = "amb-temp"; // Set value for stream you are using
// GET Stream value
response_code = getStream(streamName, json);
content_length = readContentLength(json);
pc.printf("GET Stream\r\nResponse: %d\r\nContent Length: %d\r\njson: %s\r\n\r\n", response_code, content_length, json);
Thread::wait(5000);
/////
// PUT value to Strem
amb_temp = tmp.read();
sprintf(json, "{\"value\":\"%0.2f\"}", amb_temp);
response_code = putStream(streamName, json);
content_length = readContentLength(json);
pc.printf("PUT Stream\r\nResponse: %d\r\nContent Length: %d\r\njson: %s\r\n\r\n", response_code, content_length, json);
Thread::wait(5000);
//////
// POST value(s) to Stream
time_t seconds;
seconds = time(NULL); // get current time from mbed RTC
strftime(buf,40, "%Y-%m-%dT%H:%M:%S%z", localtime(&seconds));
amb_temp = tmp.read();
sprintf(json, "{ \"values\": [ {\"at\": \"%s\", \"value\":\"%0.2f\"} ] }", buf, amb_temp);
response_code = postStream(streamName, json);
content_length = readContentLength(json);
pc.printf("POST Stream\r\nResponse: %d\r\nContent Length: %d\r\njson: %s\r\n\r\n", response_code, content_length, json);
Thread::wait(5000);
///////
// PUT Location to Feed
sprintf(json, "{ \"name\": \"%s\", \"latitude\": \"%0.8f\", \"longitude\": \"%0.8f\", \"elevation\": \"%0.2f\" }", LOC_NAME, LOC_LAT, LOC_LONG, LOC_ELEV);
response_code = putLocation(json);
content_length = readContentLength(json);
pc.printf("PUT Location\r\nResponse: %d\r\nContent Length: %d\r\njson: %s\r\n\r\n", response_code, content_length, json);
Thread::wait(5000);
///////
// GET Location of Feed
response_code = getLocation(json);
content_length = readContentLength(json);
pc.printf("GET Location\r\nResponse: %d\r\nContent Length: %d\r\njson: %s\r\n\r\n", response_code, content_length, json);
Thread::wait(5000);
}
eth.disconnect();
while(1) {}
}
