char *join( char **inStrings, int inNumParts, char *inGlue ) {
StringBufferOutputStream *outStream = new StringBufferOutputStream();
for( int i=0; i<inNumParts - 1; i++ ) {
outStream->writeString( inStrings[i] );
outStream->writeString( inGlue );
}
// no glue after last string
outStream->writeString( inStrings[ inNumParts - 1 ] );
char *returnString = outStream->getString();
delete outStream;
return returnString;
}
WebRequest::WebRequest( const char *inMethod, const char *inURL,
const char *inBody, const char *inProxy )
: mError( false ), mURL( stringDuplicate( inURL ) ),
mRequest( NULL ), mRequestPosition( -1 ),
mResultReady( false ), mResult( NULL ),
mSock( NULL ) {
const char *startString = "http://";
char *urlCopy = stringDuplicate( inURL );
char *urlStart = stringLocateIgnoreCase( urlCopy, startString );
char *serverStart;
if( urlStart == NULL ) {
// no http:// at start of URL
serverStart = urlCopy;
}
else {
serverStart = &( urlStart[ strlen( startString ) ] );
}
// find the first occurrence of "/", which is the end of the
// server name
char *serverNameCopy;
char *requestHostNameCopy = stringDuplicate( serverStart );
if( inProxy != NULL ) {
serverNameCopy = stringDuplicate( inProxy );
}
else {
// will be same as parsed, request host name copy later
serverNameCopy = NULL;
}
char *getPath;
if( inProxy != NULL ) {
// for proxy, pass entire URL as method target
getPath = (char*)inURL;
}
else {
// for direct connection, pass only file sub-path from URL
getPath = strstr( serverStart, "/" );
}
char *hostNameEnd = strstr( requestHostNameCopy, "/" );
if( hostNameEnd == NULL ) {
hostNameEnd = &( requestHostNameCopy[ strlen( requestHostNameCopy ) ] );
if( inProxy == NULL ) {
getPath = (char *)"/";
}
}
// terminate the url here to extract the host name and port
hostNameEnd[0] = '\0';
if( inProxy == NULL ) {
serverNameCopy = stringDuplicate( requestHostNameCopy );
}
int portNumber = 80;
// look for a port number
char *colon = strstr( serverNameCopy, ":" );
if( colon != NULL ) {
char *portNumberString = &( colon[1] );
int numRead = sscanf( portNumberString, "%d",
& portNumber );
if( numRead != 1 ) {
portNumber = 80;
}
// terminate the name here so port isn't taken as part
// of the address
colon[0] = '\0';
}
mSuppliedAddress = new HostAddress(
stringDuplicate( serverNameCopy ),
portNumber );
mNumericalAddress = NULL;
mLookupThread = NULL;
// launch right into name lookup
mLookupThread = new LookupThread( mSuppliedAddress );
mSock = NULL;
// compose the request into a buffered stream
StringBufferOutputStream tempStream;
tempStream.writeString( inMethod );
tempStream.writeString( " " );
tempStream.writeString( getPath );
tempStream.writeString( " HTTP/1.0\r\n" );
tempStream.writeString( "Host: " );
tempStream.writeString( requestHostNameCopy );
tempStream.writeString( "\r\n" );
if( inBody != NULL ) {
char *lengthString = autoSprintf( "Content-Length: %d\r\n",
strlen( inBody ) );
tempStream.writeString( lengthString );
delete [] lengthString;
tempStream.writeString(
"Content-Type: application/x-www-form-urlencoded\r\n\r\n" );
tempStream.writeString( inBody );
}
else {
tempStream.writeString( "\r\n" );
}
mRequest = tempStream.getString();
mRequestPosition = 0;
delete [] serverNameCopy;
delete [] requestHostNameCopy;
delete [] urlCopy;
}