/*----------------------------------------------------------------------
| ATX_HttpResponse_Emit
+---------------------------------------------------------------------*/
extern ATX_Result
ATX_HttpResponse_Emit(const ATX_HttpResponse* response,
ATX_OutputStream* stream)
{
/* check that we have what we need */
if (ATX_String_IsEmpty(&response->base.protocol)) return ATX_ERROR_INVALID_PARAMETERS;
if (response->status_code >= 1000) return ATX_ERROR_INVALID_PARAMETERS;
/* output response line */
ATX_OutputStream_WriteString(stream, ATX_CSTR(response->base.protocol));
{
char code_string[5];
unsigned code_int = response->status_code;
code_string[0] = ' ';
code_string[1] = '0' + code_int/100;
code_int -= 100*(code_int/100);
code_string[2] = '0' + code_int/10;
code_int -= 10*(code_int/10);
code_string[3] = '0' + code_int;
code_string[4] = ' ';
ATX_OutputStream_Write(stream, code_string, 5, NULL);
}
ATX_OutputStream_WriteString(stream, ATX_CSTR(response->reason_phrase));
ATX_OutputStream_Write(stream, "\r\n", 2, NULL);
/* output the rest of the message */
return ATX_HttpMessage_Emit((ATX_HttpMessage*)response, stream);
}
/*----------------------------------------------------------------------
| AlsaOutput_Open
+---------------------------------------------------------------------*/
static BLT_Result
AlsaOutput_Open(AlsaOutput* self)
{
int io_result;
ATX_LOG_FINE_1("openning output - name=%s", ATX_CSTR(self->device_name));
switch (self->state) {
case BLT_ALSA_OUTPUT_STATE_CLOSED:
ATX_LOG_FINER("snd_pcm_open");
io_result = snd_pcm_open(&self->device_handle,
ATX_CSTR(self->device_name),
SND_PCM_STREAM_PLAYBACK,
0);
if (io_result != 0) {
self->device_handle = NULL;
return BLT_FAILURE;
}
break;
case BLT_ALSA_OUTPUT_STATE_OPEN:
/* ignore */
return BLT_SUCCESS;
case BLT_ALSA_OUTPUT_STATE_CONFIGURED:
case BLT_ALSA_OUTPUT_STATE_PREPARED:
return BLT_FAILURE;
}
/* update the state */
AlsaOutput_SetState(self, BLT_ALSA_OUTPUT_STATE_OPEN);
return BLT_SUCCESS;
}
/*----------------------------------------------------------------------
| BLT_TcpNetworkStream_Create
+---------------------------------------------------------------------*/
BLT_Result
BLT_TcpNetworkStream_Create(const char* name, ATX_InputStream** stream)
{
ATX_Socket* sock;
ATX_String hostname = ATX_String_Create(name);
ATX_UInt16 port = BLT_TCP_NETWORK_STREAM_DEFAULT_PORT;
int sep;
ATX_Result result = ATX_SUCCESS;
/* default */
*stream = NULL;
/* parse the hostname/port */
sep = ATX_String_FindCharFrom(&hostname, ':', 6);
if (sep > 0) {
/* we have a port number */
int port_long = 0;
result = ATX_ParseInteger(name+sep+1, &port_long, ATX_FALSE);
if (ATX_FAILED(result)) {
ATX_LOG_WARNING("BLT_TcpNetworkStream_Create - invalid port spec");
goto end;
}
port = (ATX_UInt16)port_long;
ATX_String_SetLength(&hostname, sep);
}
/* create a socket */
result = ATX_TcpClientSocket_Create(&sock);
if (ATX_FAILED(result)) goto end;
/* connect */
ATX_LOG_FINE_2("BLT_TcpNetworkStream_Create - connecting to %s:%d",
ATX_CSTR(hostname), port);
result = ATX_Socket_ConnectToHost(sock, ATX_CSTR(hostname), port, BLT_TCP_NETWORK_STREAM_DEFAULT_TIMEOUT);
if (ATX_FAILED(result)) {
ATX_LOG_WARNING_1("BLT_TcpNetworkStream_Create - failed to connect (%d)", result);
goto end;
}
ATX_LOG_FINE("BLT_TcpNetworkStream_Create - connected");
/* return the input stream */
result = ATX_Socket_GetInputStream(sock, stream);
/* release the socket */
ATX_DESTROY_OBJECT(sock);
end:
ATX_String_Destruct(&hostname);
return result;
}
/*----------------------------------------------------------------------
| ATX_HttpMessage_Emit
+---------------------------------------------------------------------*/
static ATX_Result
ATX_HttpMessage_Emit(const ATX_HttpMessage* message, ATX_OutputStream* stream)
{
ATX_ListItem* item = ATX_List_GetFirstItem(message->headers);
/* output the headers */
while (item) {
ATX_HttpHeader* header = ATX_ListItem_GetData(item);
if (header &&
!ATX_String_IsEmpty(&header->name) &&
!ATX_String_IsEmpty(&header->value)) {
ATX_OutputStream_WriteString(stream, ATX_CSTR(header->name));
ATX_OutputStream_Write(stream, ": ", 2, NULL);
ATX_OutputStream_WriteLine(stream, ATX_CSTR(header->value));
ATX_LOG_FINE_2("ATX_HttpMessage::Emit - %s: %s", ATX_CSTR(header->name), ATX_CSTR(header->value));
}
item = ATX_ListItem_GetNext(item);
}
return ATX_SUCCESS;
}
/*----------------------------------------------------------------------
| ATX_HttpRequest_Emit
+---------------------------------------------------------------------*/
ATX_Result
ATX_HttpRequest_Emit(const ATX_HttpRequest* request, ATX_OutputStream* stream)
{
/* check that we have all we need */
if (ATX_String_IsEmpty(&request->method) ||
ATX_String_IsEmpty(&request->base.protocol)) {
return ATX_ERROR_INVALID_PARAMETERS;
}
/* output the request line */
ATX_OutputStream_WriteString(stream, ATX_CSTR(request->method));
ATX_OutputStream_Write(stream, " ", 1, NULL);
ATX_OutputStream_WriteString(stream, ATX_CSTR(request->url.path));
ATX_OutputStream_Write(stream, " ", 1, NULL);
ATX_OutputStream_WriteString(stream, ATX_CSTR(request->base.protocol));
/* output the headers */
ATX_HttpMessage_Emit(&request->base, stream);
/* terminating line */
ATX_OutputStream_Write(stream, "\r\n", 2, NULL);
return ATX_SUCCESS;
}
/*----------------------------------------------------------------------
| Listener_OnPropertyChanged
+---------------------------------------------------------------------*/
static void
Listener_OnPropertyChanged(ATX_PropertyListener* _self,
ATX_CString name,
ATX_PropertyType type,
const ATX_PropertyValue* value)
{
Listener* self = ATX_SELF(Listener, ATX_PropertyListener);
ATX_Debug("OnPropertyChanged[%s]: ", ATX_CSTR(self->name));
if (value) {
PrintProperty(name, type, value);
} else {
ATX_Debug("name=%s [REMOVED]\n", name);
}
}
/*----------------------------------------------------------------------
| ATX_HttpRequest_Create
+---------------------------------------------------------------------*/
ATX_Result
ATX_HttpRequest_Create(ATX_CString method,
ATX_CString url,
ATX_HttpRequest** request)
{
ATX_Result result;
/* allocate a new object */
*request = (ATX_HttpRequest*)ATX_AllocateZeroMemory(sizeof(ATX_HttpRequest));
if (*request == NULL) {
return ATX_ERROR_OUT_OF_MEMORY;
}
/* construct the base object */
result = ATX_HttpMessage_Construct(&(*request)->base);
if (ATX_FAILED(result)) {
ATX_FreeMemory((void*)request);
return result;
}
/* construct the object */
(*request)->method = ATX_String_Create(method);
result = ATX_HttpUrl_Construct(&(*request)->url, url);
if (ATX_FAILED(result)) {
ATX_HttpMessage_Destruct(&(*request)->base);
ATX_FreeMemory((void*)request);
return result;
}
/* set the host header */
if (!ATX_String_IsEmpty(&(*request)->url.host)) {
ATX_HttpMessage_SetHeader((ATX_HttpMessage*)(*request),
ATX_HTTP_HEADER_HOST,
ATX_CSTR((*request)->url.host));
}
return ATX_SUCCESS;
}
/*----------------------------------------------------------------------
| ATX_HttpResponse_Parse
+---------------------------------------------------------------------*/
static ATX_Result
ATX_HttpResponse_Parse(ATX_HttpResponse* response, ATX_InputStream* stream)
{
char buffer[ATX_HTTP_MAX_LINE_SIZE+1];
char* line = buffer;
char* find;
ATX_Boolean header_pending = ATX_FALSE;
ATX_String header_name = ATX_EMPTY_STRING;
ATX_String header_value = ATX_EMPTY_STRING;
ATX_Result result;
/* get the first line from the stream */
result = ATX_InputStream_ReadLine(stream, line, sizeof(buffer), NULL);
if (ATX_FAILED(result)) return result;
/* get the protocol */
find = (char*)ATX_Http_FindChar(line, ' ');
if (find == NULL) {
return ATX_ERROR_INVALID_SYNTAX;
}
*find = '\0';
ATX_String_Assign(&response->base.protocol, line);
/* get the status code */
line = (char*)ATX_Http_SkipWhitespace(find+1);
find = (char*)ATX_Http_FindChar(line, ' ');
if (find == NULL) {
return ATX_ERROR_INVALID_SYNTAX;
}
*find = '\0';
if (ATX_StringLength(line) != 3) {
return ATX_ERROR_INVALID_SYNTAX;
}
{
int i;
response->status_code = 0;
for (i=0; i<3; i++) {
if (line[i] < '0' || line[i] > '9') {
return ATX_ERROR_INVALID_SYNTAX;
}
response->status_code *= 10;
response->status_code += line[i]-'0';
}
}
/* the rest is the reason phrase */
line = (char*)ATX_Http_SkipWhitespace(find+1);
ATX_String_Assign(&response->reason_phrase, line);
/* parse headers until an empty line or end of stream */
do {
/* read a line */
result = ATX_InputStream_ReadLine(stream, line, sizeof(buffer), NULL);
if (ATX_FAILED(result)) break;
/* stop if line is empty */
if (line[0] == '\0' || line[0] == '\r' || line[0] == '\n') {
if (header_pending) {
ATX_String_TrimWhitespace(&header_value);
ATX_HttpMessage_SetHeader((ATX_HttpMessage*)response,
ATX_CSTR(header_name),
ATX_CSTR(header_value));
ATX_LOG_FINE_2("ATX_HttpResponse::Parse - %s: %s",
ATX_CSTR(header_name),
ATX_CSTR(header_value));
}
break;
}
/* process the line */
if ((line[0] == ' ' || line[0] == '\t') && header_pending) {
/* this is a line continuation */
ATX_String_Append(&header_value, line+1);
} else {
/* this is a new header */
const char* name;
const char* value;
/* add the pending header to the list */
if (header_pending) {
ATX_String_TrimWhitespace(&header_value);
ATX_HttpMessage_SetHeader((ATX_HttpMessage*)response,
ATX_CSTR(header_name),
ATX_CSTR(header_value));
ATX_LOG_FINE_2("ATX_HttpResponse::Parse - %s: %s",
ATX_CSTR(header_name),
ATX_CSTR(header_value));
}
/* parse header name */
name = ATX_Http_SkipWhitespace(line);
value = ATX_Http_FindChar(name, ':');
ATX_String_AssignN(&header_name, name, (ATX_Size)(value-name));
value = ATX_Http_SkipWhitespace(value+1);
ATX_String_Assign(&header_value, value);
/* don't add the header now, it could be continued */
header_pending = ATX_TRUE;
}
} while(ATX_SUCCEEDED(result));
/* keep a reference to the stream */
response->base.body = stream;
ATX_REFERENCE_OBJECT(stream);
/* cleanup */
ATX_String_Destruct(&header_name);
ATX_String_Destruct(&header_value);
return ATX_SUCCESS;
}
/*----------------------------------------------------------------------
| ATX_HttpClient_SendRequestOnce
+---------------------------------------------------------------------*/
static ATX_Result
ATX_HttpClient_SendRequestOnce(ATX_HttpClient* self,
ATX_HttpRequest* request,
ATX_HttpResponse** response)
{
ATX_SocketAddress address;
ATX_Socket* connection = NULL;
ATX_InputStream* input_stream = NULL;
ATX_OutputStream* output_stream = NULL;
ATX_Result result;
ATX_COMPILER_UNUSED(self);
/* set default return value */
*response = NULL;
/* resolve the host address */
ATX_LOG_INFO_1("ATX_HttpClient::SendRequest - resolving name [%s]...",
ATX_CSTR(request->url.host));
result = ATX_IpAddress_ResolveName(&address.ip_address,
ATX_CSTR(request->url.host),
ATX_HTTP_RESOLVER_TIMEOUT);
if (ATX_FAILED(result)) return result;
address.port = request->url.port;
ATX_LOG_INFO("ATX_HttpClient::SendRequest - name resolved");
/* setup some headers */
ATX_HttpMessage_SetHeader((ATX_HttpMessage*)request,
ATX_HTTP_HEADER_CONNECTION,
"close");
ATX_HttpMessage_SetHeader((ATX_HttpMessage*)request,
ATX_HTTP_HEADER_HOST,
ATX_CSTR(request->url.host));
ATX_HttpMessage_SetHeader((ATX_HttpMessage*)request,
ATX_HTTP_HEADER_USER_AGENT,
ATX_HTTP_HEADER_DEFAULT_AGENT);
/* create a socket to connect to the server */
result = ATX_TcpClientSocket_Create(&connection);
if (ATX_FAILED(result)) return result;
/* connect to the server */
ATX_LOG_INFO_1("ATX_HttpClient::SendRequest - connecting on port %d...",
request->url.port);
result = ATX_Socket_Connect(connection, &address, ATX_HTTP_CONNECT_TIMEOUT);
if (ATX_FAILED(result)) goto end;
/* emit the request onto the connection */
result = ATX_Socket_GetOutputStream(connection, &output_stream);
if (ATX_FAILED(result)) goto end;
result = ATX_HttpRequest_Emit(request, output_stream);
if (ATX_FAILED(result)) goto end;
/* create a response from the connection's input stream */
result = ATX_Socket_GetInputStream(connection, &input_stream);
if (ATX_FAILED(result)) goto end;
result = ATX_HttpResponse_CreateFromStream(input_stream, response);
if (ATX_FAILED(result)) {
*response = NULL;
goto end;
}
end:
if (ATX_FAILED(result)) {
if (*response != NULL) {
ATX_HttpResponse_Destroy(*response);
}
}
ATX_RELEASE_OBJECT(input_stream);
ATX_RELEASE_OBJECT(output_stream);
ATX_DESTROY_OBJECT(connection);
return result;
}
/*----------------------------------------------------------------------
| StdcFile_Open
+---------------------------------------------------------------------*/
ATX_METHOD
StdcFile_Open(ATX_File* _self, ATX_Flags mode)
{
StdcFile* self = ATX_SELF(StdcFile, ATX_File);
FILE* stdc_file;
/* decide wheter this is a file or stdin/stdout/stderr */
if (ATX_String_Equals(&self->name,
ATX_FILE_STANDARD_INPUT,
ATX_FALSE)) {
stdc_file = stdin;
} else if (ATX_String_Equals(&self->name,
ATX_FILE_STANDARD_OUTPUT,
ATX_FALSE)) {
stdc_file = stdout;
} else if (ATX_String_Equals(&self->name,
ATX_FILE_STANDARD_ERROR,
ATX_FALSE)) {
stdc_file = stderr;
} else {
const char* fmode = "";
/* compute mode */
if (mode & ATX_FILE_OPEN_MODE_WRITE) {
if (mode & ATX_FILE_OPEN_MODE_CREATE) {
if (mode & ATX_FILE_OPEN_MODE_TRUNCATE) {
/* write, read, create, truncate */
fmode = "w+b";
} else {
/* write, read, create */
fmode = "a+b";
}
} else {
if (mode & ATX_FILE_OPEN_MODE_TRUNCATE) {
/* write, read, truncate */
fmode = "w+b";
} else {
/* write, read */
fmode = "r+b";
}
}
} else {
/* read only */
fmode = "rb";
}
/* try to open the file */
stdc_file = fopen(ATX_CSTR(self->name), fmode);
if (stdc_file == NULL) {
switch (errno) {
case EACCES:
return ATX_ERROR_ACCESS_DENIED;
case ENOENT:
return ATX_ERROR_NO_SUCH_FILE;
default:
return ATX_ERROR_ERRNO(errno);
}
}
}
/* set the buffered/unbuffered option */
if (mode & ATX_FILE_OPEN_MODE_UNBUFFERED) {
setvbuf(stdc_file, NULL, _IONBF, 0);
}
/* remember the mode */
self->mode = mode;
/* create a wrapper */
return StdcFileWrapper_Create(stdc_file, self->size, &self->file);
}
