uint64_t RequestHandler :: compute_hash( HttpMessage& request ){
if( cache_hash_function != NULL ){
return cache_hash_function( request );
}
else{
std::string ckey = request.get_method() + ":" + request.get_path();
return fnv1a_hash( ckey );
}
}
HttpMessage RequestHandler :: handleRequest( HttpMessage& request ){
HttpMessage response;
std::string body, path, ckey;
handler_function func = NULL;
size_t pattern_length = 0;
uint64_t cache_key;
std::unordered_map<uint64_t, CachedEntry>::iterator cache_it;
path = request.get_path();
response.set_version( "HTTP/1.1" );
response.set_header_field( "Server", SERVER_VERSION );
response.set_header_field( "Content-Type", "text/html" );
response.set_header_field( "Date", get_gmt_time(0) );
/*
ckey = request.get_method() + ":" + path;
cache_key = fnv1a_hash( ckey );
*/
cache_key = compute_hash( request );
pthread_rwlock_rdlock( &RequestHandler::cache_lock );
cache_it = cache.find( cache_key );
if( cache_it != cache.end() ){
if( (cache_it->second).is_valid() ){
pthread_rwlock_unlock( &RequestHandler::cache_lock );
//std::cerr << "Found @ cache" << std::endl;
return (cache_it->second).get_content();
}
}
pthread_rwlock_unlock( &RequestHandler::cache_lock );
for( std::map< std::string, handler_function >::iterator it = handlers.begin() ; it != handlers.end() ; it++ ){
if( string_startswith( it->first, path ) ){
if( (it->first).size() > pattern_length ){
pattern_length = (it->first).size();
func = it->second;
}
}
}
if( func == NULL ){
response.set_code( 404 );
response.set_code_string( "Not found." );
response.set_version( "HTTP/1.1" );
response.set_header_field( "Connection", "close" );
response.set_header_field( "Date", get_gmt_time(0) );
response.set_header_field( "Server", SERVER_VERSION );
response.set_header_field( "Last-Modified", get_gmt_time(0) );
response.set_header_field( "Content-Type", "text/plain" );
response.set_body( "Error 404 - Not found!\n" );
}
else{
response_options_t result;
try{
result = func( request, response );
} catch( std::string error ){
response.set_code( 500 );
response.set_code_string( "Internal server error." );
}
if( !result.ok ){
response.set_code( 404 );
response.set_code_string( "Not found." );
response.set_version( "HTTP/1.1" );
response.set_header_field( "Connection", "close" );
response.set_header_field( "Date", get_gmt_time(0) );
response.set_header_field( "Server", SERVER_VERSION );
response.set_header_field( "Last-Modified", get_gmt_time(0) );
response.set_header_field( "Content-Type", "text/plain" );
response.set_body( "Error 404 - Not found!\n" );
}
else{
if( request.has_header_field( "Accept-Encoding" ) ){
if( request.get_header_field( "Accept-Encoding" ).find( "gzip" ) != std::string::npos ){
response.set_body( zlib_gzip_deflate( response.get_body() ) );
response.set_header_field( "Content-Encoding", "gzip" );
}
else{
if( request.get_header_field( "Accept-Encoding" ).find( "deflate" ) != std::string::npos ){
response.set_body( zlib_deflate( response.get_body() ) );
response.set_header_field( "Content-Encoding", "deflate" );
}
}
}
if( result.cached ){
add_cache( cache_key, response, result.expires );
}
}
}
return response;
}