Clean up streaming code - migrate to separate rdp_stream.[ch]
This commit is contained in:
Michael Jumper
parent
243f24722c
commit
bccc1c7c76
@ -40,6 +40,7 @@ libguac_client_rdp_la_SOURCES = \
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rdp_pointer.c \
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rdp_rail.c \
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rdp_settings.c \
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rdp_stream.c \
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rdp_svc.c \
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unicode.c
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@ -89,6 +90,7 @@ noinst_HEADERS = \
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rdp_rail.h \
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rdp_settings.h \
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rdp_status.h \
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rdp_stream.h \
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rdp_svc.h \
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unicode.h
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@ -30,7 +30,6 @@
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#include "rdp_fs.h"
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#include "rdp_keymap.h"
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#include "rdp_settings.h"
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#include "rdp_svc.h"
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#include <pthread.h>
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@ -203,90 +202,6 @@ typedef struct rdp_freerdp_context {
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} rdp_freerdp_context;
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/**
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* The transfer status of a file being downloaded.
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*/
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typedef struct guac_rdp_download_status {
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/**
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* The file ID of the file being downloaded.
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*/
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int file_id;
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/**
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* The current position within the file.
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*/
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uint64_t offset;
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} guac_rdp_download_status;
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/**
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* Structure which represents the current state of an upload.
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*/
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typedef struct guac_rdp_upload_status {
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/**
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* The overall offset within the file that the next write should
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* occur at.
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*/
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int offset;
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/**
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* The ID of the file being written to.
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*/
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int file_id;
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} guac_rdp_upload_status;
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/**
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* All available stream types.
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*/
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typedef enum guac_rdp_stream_type {
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/**
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* An in-progress file upload.
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*/
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GUAC_RDP_UPLOAD_STREAM,
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/**
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* An in-progress file download.
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*/
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GUAC_RDP_DOWNLOAD_STREAM,
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/**
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* The inbound half of a static virtual channel.
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*/
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GUAC_RDP_INBOUND_SVC_STREAM
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} guac_rdp_stream_type;
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/**
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* Variable-typed stream data.
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*/
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typedef struct guac_rdp_stream {
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/**
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* The type of this stream.
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*/
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guac_rdp_stream_type type;
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/**
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* The file upload status. Only valid for GUAC_RDP_UPLOAD_STREAM.
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*/
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guac_rdp_upload_status upload_status;
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/**
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* The file upload status. Only valid for GUAC_RDP_DOWNLOAD_STREAM.
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*/
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guac_rdp_download_status download_status;
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/**
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* Associated SVC instance. Only valid for GUAC_RDP_INBOUND_SVC_STREAM.
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*/
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guac_rdp_svc* svc;
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} guac_rdp_stream;
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/**
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* Given the coordinates and dimensions of a rectangle, clips the rectangle to be
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* within the clipping bounds of the client data, if clipping is active.
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@ -28,7 +28,7 @@
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#include "rdp_cliprdr.h"
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#include "rdp_keymap.h"
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#include "rdp_rail.h"
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#include "rdp_svc.h"
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#include "rdp_stream.h"
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#include <errno.h>
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#include <pthread.h>
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@ -492,164 +492,48 @@ int rdp_guac_client_clipboard_handler(guac_client* client, char* data) {
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}
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/**
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* Writes the given filename to the given upload path, sanitizing the filename
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* and translating the filename to the root directory.
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*/
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static void __generate_upload_path(const char* filename, char* path) {
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int i;
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/* Add initial backslash */
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*(path++) = '\\';
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for (i=1; i<GUAC_RDP_FS_MAX_PATH; i++) {
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/* Get current, stop at end */
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char c = *(filename++);
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if (c == '\0')
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break;
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/* Replace special characters with underscores */
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if (c == '/' || c == '\\')
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c = '_';
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*(path++) = c;
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}
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/* Terminate path */
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*path = '\0';
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}
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int rdp_guac_client_file_handler(guac_client* client, guac_stream* stream,
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char* mimetype, char* filename) {
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int file_id;
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guac_rdp_stream* rdp_stream;
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char file_path[GUAC_RDP_FS_MAX_PATH];
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/* Get filesystem, return error if no filesystem */
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guac_rdp_fs* fs = ((rdp_guac_client_data*) client->data)->filesystem;
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if (fs == NULL) {
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guac_protocol_send_ack(client->socket, stream, "FAIL (NO FS)",
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GUAC_PROTOCOL_STATUS_INTERNAL_ERROR);
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guac_socket_flush(client->socket);
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return 0;
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}
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/* Translate name */
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__generate_upload_path(filename, file_path);
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/* Open file */
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file_id = guac_rdp_fs_open(fs, file_path, ACCESS_GENERIC_WRITE, 0,
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DISP_FILE_OVERWRITE_IF, 0);
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if (file_id < 0) {
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guac_protocol_send_ack(client->socket, stream, "FAIL (CANNOT OPEN)",
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GUAC_PROTOCOL_STATUS_PERMISSION_DENIED);
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guac_socket_flush(client->socket);
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return 0;
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}
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/* Init upload status */
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rdp_stream = malloc(sizeof(guac_rdp_stream));
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rdp_stream->type = GUAC_RDP_UPLOAD_STREAM;
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rdp_stream->upload_status.offset = 0;
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rdp_stream->upload_status.file_id = file_id;
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stream->data = rdp_stream;
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guac_protocol_send_ack(client->socket, stream, "OK (STREAM BEGIN)",
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GUAC_PROTOCOL_STATUS_SUCCESS);
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guac_socket_flush(client->socket);
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return 0;
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/* All inbound files are file uploads */
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return guac_rdp_upload_file_handler(client, stream, mimetype, filename);
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}
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int rdp_guac_client_pipe_handler(guac_client* client, guac_stream* stream,
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char* mimetype, char* name) {
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guac_rdp_stream* rdp_stream;
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guac_rdp_svc* svc = guac_rdp_get_svc(client, name);
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/* Fail if no such SVC */
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if (svc == NULL) {
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guac_client_log_error(client,
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"Requested non-existent pipe: \"%s\".",
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name);
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guac_protocol_send_ack(client->socket, stream, "FAIL (NO SUCH PIPE)",
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GUAC_PROTOCOL_STATUS_INVALID_PARAMETER);
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guac_socket_flush(client->socket);
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return 0;
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}
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else
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guac_client_log_error(client,
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"Inbound half of channel \"%s\" connected.",
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name);
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/* Init stream data */
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stream->data = rdp_stream = malloc(sizeof(guac_rdp_stream));
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rdp_stream->type = GUAC_RDP_INBOUND_SVC_STREAM;
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rdp_stream->svc = svc;
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svc->input_pipe = stream;
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return 0;
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/* All inbound pipes are SVC-related */
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return guac_rdp_svc_pipe_handler(client, stream, mimetype, name);
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}
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int rdp_guac_client_blob_handler(guac_client* client, guac_stream* stream,
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void* data, int length) {
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int bytes_written;
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guac_rdp_stream* rdp_stream = (guac_rdp_stream*) stream->data;
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/* Write any received data if upload stream */
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if (rdp_stream->type == GUAC_RDP_UPLOAD_STREAM) {
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/* Handle based on stream type */
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switch (rdp_stream->type) {
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/* Inbound file stream */
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case GUAC_RDP_UPLOAD_STREAM:
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return guac_rdp_upload_blob_handler(client, stream, data, length);
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/* SVC stream */
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case GUAC_RDP_INBOUND_SVC_STREAM:
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return guac_rdp_svc_blob_handler(client, stream, data, length);
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/* Other streams do not accept blobs */
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default:
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guac_protocol_send_ack(client->socket, stream,
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"FAIL (BLOB NOT EXPECTED)",
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GUAC_PROTOCOL_STATUS_INVALID_PARAMETER);
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/* Get filesystem, return error if no filesystem 0*/
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guac_rdp_fs* fs = ((rdp_guac_client_data*) client->data)->filesystem;
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if (fs == NULL) {
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guac_protocol_send_ack(client->socket, stream, "FAIL (NO FS)",
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GUAC_PROTOCOL_STATUS_INTERNAL_ERROR);
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guac_socket_flush(client->socket);
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return 0;
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}
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/* Write entire block */
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while (length > 0) {
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/* Attempt write */
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bytes_written = guac_rdp_fs_write(fs,
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rdp_stream->upload_status.file_id,
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rdp_stream->upload_status.offset,
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data, length);
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/* On error, abort */
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if (bytes_written < 0) {
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guac_protocol_send_ack(client->socket, stream,
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"FAIL (BAD WRITE)",
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GUAC_PROTOCOL_STATUS_PERMISSION_DENIED);
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guac_socket_flush(client->socket);
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return 0;
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}
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/* Update counters */
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rdp_stream->upload_status.offset += bytes_written;
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data += bytes_written;
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length -= bytes_written;
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}
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} /* end if upload stream */
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/* Handle received SVC data */
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else if (rdp_stream->type == GUAC_RDP_INBOUND_SVC_STREAM)
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guac_rdp_svc_write(rdp_stream->svc, data, length);
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guac_protocol_send_ack(client->socket, stream, "OK (DATA RECEIVED)",
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GUAC_PROTOCOL_STATUS_SUCCESS);
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guac_socket_flush(client->socket);
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return 0;
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}
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}
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@ -657,31 +541,24 @@ int rdp_guac_client_end_handler(guac_client* client, guac_stream* stream) {
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guac_rdp_stream* rdp_stream = (guac_rdp_stream*) stream->data;
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/* Close file for upload streams */
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if (rdp_stream->type == GUAC_RDP_UPLOAD_STREAM) {
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/* Handle based on stream type */
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switch (rdp_stream->type) {
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/* Inbound file stream */
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case GUAC_RDP_UPLOAD_STREAM:
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return guac_rdp_upload_end_handler(client, stream);
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/* Other streams do not accept explicit closure */
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default:
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guac_protocol_send_ack(client->socket, stream,
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"FAIL (END NOT EXPECTED)",
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GUAC_PROTOCOL_STATUS_INVALID_PARAMETER);
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/* Get filesystem, return error if no filesystem */
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guac_rdp_fs* fs = ((rdp_guac_client_data*) client->data)->filesystem;
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if (fs == NULL) {
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guac_protocol_send_ack(client->socket, stream, "FAIL (NO FS)",
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GUAC_PROTOCOL_STATUS_INTERNAL_ERROR);
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guac_socket_flush(client->socket);
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return 0;
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}
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/* Close file */
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guac_rdp_fs_close(fs, rdp_stream->upload_status.file_id);
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}
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/* Acknowledge stream end */
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guac_protocol_send_ack(client->socket, stream, "OK (STREAM END)",
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GUAC_PROTOCOL_STATUS_SUCCESS);
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guac_socket_flush(client->socket);
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free(rdp_stream);
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return 0;
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}
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int rdp_guac_client_ack_handler(guac_client* client, guac_stream* stream,
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@ -693,61 +570,19 @@ int rdp_guac_client_ack_handler(guac_client* client, guac_stream* stream,
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if (rdp_stream == NULL)
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return 0;
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/* Send more data when download blobs are acknowledged */
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if (rdp_stream->type == GUAC_RDP_DOWNLOAD_STREAM) {
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/* Handle other acks based on stream type */
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switch (rdp_stream->type) {
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/* Get filesystem, return error if no filesystem */
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guac_rdp_fs* fs = ((rdp_guac_client_data*) client->data)->filesystem;
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if (fs == NULL) {
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guac_protocol_send_ack(client->socket, stream, "FAIL (NO FS)",
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GUAC_PROTOCOL_STATUS_INTERNAL_ERROR);
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guac_socket_flush(client->socket);
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/* Inbound file stream */
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case GUAC_RDP_DOWNLOAD_STREAM:
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return guac_rdp_download_ack_handler(
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client, stream, message, status);
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/* Ignore acks on all other streams */
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default:
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return 0;
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}
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/* If successful, read data */
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if (status == GUAC_PROTOCOL_STATUS_SUCCESS) {
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/* Attempt read into buffer */
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char buffer[4096];
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int bytes_read = guac_rdp_fs_read(fs,
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rdp_stream->download_status.file_id,
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rdp_stream->download_status.offset, buffer, sizeof(buffer));
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/* If bytes read, send as blob */
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if (bytes_read > 0) {
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rdp_stream->download_status.offset += bytes_read;
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guac_protocol_send_blob(client->socket, stream,
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buffer, bytes_read);
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}
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/* If EOF, send end */
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else if (bytes_read == 0) {
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guac_protocol_send_end(client->socket, stream);
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guac_client_free_stream(client, stream);
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free(rdp_stream);
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}
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/* Otherwise, fail stream */
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else {
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guac_client_log_error(client,
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"Error reading file for download");
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guac_protocol_send_end(client->socket, stream);
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guac_client_free_stream(client, stream);
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free(rdp_stream);
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}
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guac_socket_flush(client->socket);
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}
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/* Otherwise, return stream to client */
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else
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guac_client_free_stream(client, stream);
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}
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return 0;
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}
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@ -24,6 +24,7 @@
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#include "client.h"
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#include "debug.h"
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#include "rdp_stream.h"
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#include "rdpdr_fs_service.h"
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#include "rdpdr_messages.h"
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#include "rdpdr_printer.h"
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292
src/protocols/rdp/rdp_stream.c
Normal file
292
src/protocols/rdp/rdp_stream.c
Normal file
@ -0,0 +1,292 @@
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/*
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* Copyright (C) 2013 Glyptodon LLC
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
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* copies of the Software, and to permit persons to whom the Software is
|
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
|
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "config.h"
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#include "client.h"
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#include "rdp_fs.h"
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#include "rdp_svc.h"
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#include "rdp_stream.h"
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#include <guacamole/client.h>
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#include <guacamole/error.h>
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#include <guacamole/protocol.h>
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#include <guacamole/socket.h>
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#ifdef ENABLE_WINPR
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#include <winpr/wtypes.h>
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#else
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#include "compat/winpr-wtypes.h"
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#endif
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/**
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* Writes the given filename to the given upload path, sanitizing the filename
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* and translating the filename to the root directory.
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*/
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static void __generate_upload_path(const char* filename, char* path) {
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int i;
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/* Add initial backslash */
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*(path++) = '\\';
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for (i=1; i<GUAC_RDP_FS_MAX_PATH; i++) {
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/* Get current, stop at end */
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char c = *(filename++);
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if (c == '\0')
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break;
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/* Replace special characters with underscores */
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if (c == '/' || c == '\\')
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c = '_';
|
||||
|
||||
*(path++) = c;
|
||||
|
||||
}
|
||||
|
||||
/* Terminate path */
|
||||
*path = '\0';
|
||||
|
||||
}
|
||||
|
||||
int guac_rdp_upload_file_handler(guac_client* client, guac_stream* stream,
|
||||
char* mimetype, char* filename) {
|
||||
|
||||
int file_id;
|
||||
guac_rdp_stream* rdp_stream;
|
||||
char file_path[GUAC_RDP_FS_MAX_PATH];
|
||||
|
||||
/* Get filesystem, return error if no filesystem */
|
||||
guac_rdp_fs* fs = ((rdp_guac_client_data*) client->data)->filesystem;
|
||||
if (fs == NULL) {
|
||||
guac_protocol_send_ack(client->socket, stream, "FAIL (NO FS)",
|
||||
GUAC_PROTOCOL_STATUS_INTERNAL_ERROR);
|
||||
guac_socket_flush(client->socket);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Translate name */
|
||||
__generate_upload_path(filename, file_path);
|
||||
|
||||
/* Open file */
|
||||
file_id = guac_rdp_fs_open(fs, file_path, ACCESS_GENERIC_WRITE, 0,
|
||||
DISP_FILE_OVERWRITE_IF, 0);
|
||||
if (file_id < 0) {
|
||||
guac_protocol_send_ack(client->socket, stream, "FAIL (CANNOT OPEN)",
|
||||
GUAC_PROTOCOL_STATUS_PERMISSION_DENIED);
|
||||
guac_socket_flush(client->socket);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Init upload status */
|
||||
rdp_stream = malloc(sizeof(guac_rdp_stream));
|
||||
rdp_stream->type = GUAC_RDP_UPLOAD_STREAM;
|
||||
rdp_stream->upload_status.offset = 0;
|
||||
rdp_stream->upload_status.file_id = file_id;
|
||||
stream->data = rdp_stream;
|
||||
|
||||
guac_protocol_send_ack(client->socket, stream, "OK (STREAM BEGIN)",
|
||||
GUAC_PROTOCOL_STATUS_SUCCESS);
|
||||
guac_socket_flush(client->socket);
|
||||
return 0;
|
||||
|
||||
}
|
||||
|
||||
int guac_rdp_svc_pipe_handler(guac_client* client, guac_stream* stream,
|
||||
char* mimetype, char* name) {
|
||||
|
||||
guac_rdp_stream* rdp_stream;
|
||||
guac_rdp_svc* svc = guac_rdp_get_svc(client, name);
|
||||
|
||||
/* Fail if no such SVC */
|
||||
if (svc == NULL) {
|
||||
guac_client_log_error(client,
|
||||
"Requested non-existent pipe: \"%s\".",
|
||||
name);
|
||||
guac_protocol_send_ack(client->socket, stream, "FAIL (NO SUCH PIPE)",
|
||||
GUAC_PROTOCOL_STATUS_INVALID_PARAMETER);
|
||||
guac_socket_flush(client->socket);
|
||||
return 0;
|
||||
}
|
||||
else
|
||||
guac_client_log_error(client,
|
||||
"Inbound half of channel \"%s\" connected.",
|
||||
name);
|
||||
|
||||
/* Init stream data */
|
||||
stream->data = rdp_stream = malloc(sizeof(guac_rdp_stream));
|
||||
rdp_stream->type = GUAC_RDP_INBOUND_SVC_STREAM;
|
||||
rdp_stream->svc = svc;
|
||||
svc->input_pipe = stream;
|
||||
|
||||
return 0;
|
||||
|
||||
}
|
||||
|
||||
int guac_rdp_upload_blob_handler(guac_client* client, guac_stream* stream,
|
||||
void* data, int length) {
|
||||
|
||||
int bytes_written;
|
||||
guac_rdp_stream* rdp_stream = (guac_rdp_stream*) stream->data;
|
||||
|
||||
/* Get filesystem, return error if no filesystem 0*/
|
||||
guac_rdp_fs* fs = ((rdp_guac_client_data*) client->data)->filesystem;
|
||||
if (fs == NULL) {
|
||||
guac_protocol_send_ack(client->socket, stream, "FAIL (NO FS)",
|
||||
GUAC_PROTOCOL_STATUS_INTERNAL_ERROR);
|
||||
guac_socket_flush(client->socket);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Write entire block */
|
||||
while (length > 0) {
|
||||
|
||||
/* Attempt write */
|
||||
bytes_written = guac_rdp_fs_write(fs,
|
||||
rdp_stream->upload_status.file_id,
|
||||
rdp_stream->upload_status.offset,
|
||||
data, length);
|
||||
|
||||
/* On error, abort */
|
||||
if (bytes_written < 0) {
|
||||
guac_protocol_send_ack(client->socket, stream,
|
||||
"FAIL (BAD WRITE)",
|
||||
GUAC_PROTOCOL_STATUS_PERMISSION_DENIED);
|
||||
guac_socket_flush(client->socket);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Update counters */
|
||||
rdp_stream->upload_status.offset += bytes_written;
|
||||
data += bytes_written;
|
||||
length -= bytes_written;
|
||||
|
||||
}
|
||||
|
||||
guac_protocol_send_ack(client->socket, stream, "OK (DATA RECEIVED)",
|
||||
GUAC_PROTOCOL_STATUS_SUCCESS);
|
||||
guac_socket_flush(client->socket);
|
||||
return 0;
|
||||
|
||||
}
|
||||
|
||||
int guac_rdp_svc_blob_handler(guac_client* client, guac_stream* stream,
|
||||
void* data, int length) {
|
||||
|
||||
guac_rdp_stream* rdp_stream = (guac_rdp_stream*) stream->data;
|
||||
|
||||
/* Write blob data to SVC directly */
|
||||
guac_rdp_svc_write(rdp_stream->svc, data, length);
|
||||
|
||||
guac_protocol_send_ack(client->socket, stream, "OK (DATA RECEIVED)",
|
||||
GUAC_PROTOCOL_STATUS_SUCCESS);
|
||||
guac_socket_flush(client->socket);
|
||||
return 0;
|
||||
|
||||
}
|
||||
|
||||
int guac_rdp_upload_end_handler(guac_client* client, guac_stream* stream) {
|
||||
|
||||
guac_rdp_stream* rdp_stream = (guac_rdp_stream*) stream->data;
|
||||
|
||||
/* Get filesystem, return error if no filesystem */
|
||||
guac_rdp_fs* fs = ((rdp_guac_client_data*) client->data)->filesystem;
|
||||
if (fs == NULL) {
|
||||
guac_protocol_send_ack(client->socket, stream, "FAIL (NO FS)",
|
||||
GUAC_PROTOCOL_STATUS_INTERNAL_ERROR);
|
||||
guac_socket_flush(client->socket);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Close file */
|
||||
guac_rdp_fs_close(fs, rdp_stream->upload_status.file_id);
|
||||
|
||||
/* Acknowledge stream end */
|
||||
guac_protocol_send_ack(client->socket, stream, "OK (STREAM END)",
|
||||
GUAC_PROTOCOL_STATUS_SUCCESS);
|
||||
guac_socket_flush(client->socket);
|
||||
|
||||
free(rdp_stream);
|
||||
return 0;
|
||||
|
||||
}
|
||||
|
||||
int guac_rdp_download_ack_handler(guac_client* client, guac_stream* stream,
|
||||
char* message, guac_protocol_status status) {
|
||||
|
||||
guac_rdp_stream* rdp_stream = (guac_rdp_stream*) stream->data;
|
||||
|
||||
/* Get filesystem, return error if no filesystem */
|
||||
guac_rdp_fs* fs = ((rdp_guac_client_data*) client->data)->filesystem;
|
||||
if (fs == NULL) {
|
||||
guac_protocol_send_ack(client->socket, stream, "FAIL (NO FS)",
|
||||
GUAC_PROTOCOL_STATUS_INTERNAL_ERROR);
|
||||
guac_socket_flush(client->socket);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* If successful, read data */
|
||||
if (status == GUAC_PROTOCOL_STATUS_SUCCESS) {
|
||||
|
||||
/* Attempt read into buffer */
|
||||
char buffer[4096];
|
||||
int bytes_read = guac_rdp_fs_read(fs,
|
||||
rdp_stream->download_status.file_id,
|
||||
rdp_stream->download_status.offset, buffer, sizeof(buffer));
|
||||
|
||||
/* If bytes read, send as blob */
|
||||
if (bytes_read > 0) {
|
||||
rdp_stream->download_status.offset += bytes_read;
|
||||
guac_protocol_send_blob(client->socket, stream,
|
||||
buffer, bytes_read);
|
||||
}
|
||||
|
||||
/* If EOF, send end */
|
||||
else if (bytes_read == 0) {
|
||||
guac_protocol_send_end(client->socket, stream);
|
||||
guac_client_free_stream(client, stream);
|
||||
free(rdp_stream);
|
||||
}
|
||||
|
||||
/* Otherwise, fail stream */
|
||||
else {
|
||||
guac_client_log_error(client,
|
||||
"Error reading file for download");
|
||||
guac_protocol_send_end(client->socket, stream);
|
||||
guac_client_free_stream(client, stream);
|
||||
free(rdp_stream);
|
||||
}
|
||||
|
||||
guac_socket_flush(client->socket);
|
||||
|
||||
}
|
||||
|
||||
/* Otherwise, return stream to client */
|
||||
else
|
||||
guac_client_free_stream(client, stream);
|
||||
|
||||
return 0;
|
||||
|
||||
}
|
||||
|
||||
|
||||
152
src/protocols/rdp/rdp_stream.h
Normal file
152
src/protocols/rdp/rdp_stream.h
Normal file
@ -0,0 +1,152 @@
|
||||
/*
|
||||
* Copyright (C) 2013 Glyptodon LLC
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
|
||||
#ifndef _GUAC_RDP_STREAM_H
|
||||
#define _GUAC_RDP_STREAM_H
|
||||
|
||||
#include "config.h"
|
||||
#include "rdp_svc.h"
|
||||
|
||||
#include <stdint.h>
|
||||
|
||||
/**
|
||||
* The transfer status of a file being downloaded.
|
||||
*/
|
||||
typedef struct guac_rdp_download_status {
|
||||
|
||||
/**
|
||||
* The file ID of the file being downloaded.
|
||||
*/
|
||||
int file_id;
|
||||
|
||||
/**
|
||||
* The current position within the file.
|
||||
*/
|
||||
uint64_t offset;
|
||||
|
||||
} guac_rdp_download_status;
|
||||
|
||||
/**
|
||||
* Structure which represents the current state of an upload.
|
||||
*/
|
||||
typedef struct guac_rdp_upload_status {
|
||||
|
||||
/**
|
||||
* The overall offset within the file that the next write should
|
||||
* occur at.
|
||||
*/
|
||||
int offset;
|
||||
|
||||
/**
|
||||
* The ID of the file being written to.
|
||||
*/
|
||||
int file_id;
|
||||
|
||||
} guac_rdp_upload_status;
|
||||
|
||||
/**
|
||||
* All available stream types.
|
||||
*/
|
||||
typedef enum guac_rdp_stream_type {
|
||||
|
||||
/**
|
||||
* An in-progress file upload.
|
||||
*/
|
||||
GUAC_RDP_UPLOAD_STREAM,
|
||||
|
||||
/**
|
||||
* An in-progress file download.
|
||||
*/
|
||||
GUAC_RDP_DOWNLOAD_STREAM,
|
||||
|
||||
/**
|
||||
* The inbound half of a static virtual channel.
|
||||
*/
|
||||
GUAC_RDP_INBOUND_SVC_STREAM
|
||||
|
||||
} guac_rdp_stream_type;
|
||||
|
||||
/**
|
||||
* Variable-typed stream data.
|
||||
*/
|
||||
typedef struct guac_rdp_stream {
|
||||
|
||||
/**
|
||||
* The type of this stream.
|
||||
*/
|
||||
guac_rdp_stream_type type;
|
||||
|
||||
/**
|
||||
* The file upload status. Only valid for GUAC_RDP_UPLOAD_STREAM.
|
||||
*/
|
||||
guac_rdp_upload_status upload_status;
|
||||
|
||||
/**
|
||||
* The file upload status. Only valid for GUAC_RDP_DOWNLOAD_STREAM.
|
||||
*/
|
||||
guac_rdp_download_status download_status;
|
||||
|
||||
/**
|
||||
* Associated SVC instance. Only valid for GUAC_RDP_INBOUND_SVC_STREAM.
|
||||
*/
|
||||
guac_rdp_svc* svc;
|
||||
|
||||
} guac_rdp_stream;
|
||||
|
||||
/**
|
||||
* Handler for inbound files related to file uploads.
|
||||
*/
|
||||
int guac_rdp_upload_file_handler(guac_client* client, guac_stream* stream,
|
||||
char* mimetype, char* filename);
|
||||
|
||||
/**
|
||||
* Handler for inbound pipes related to static virtual channels.
|
||||
*/
|
||||
int guac_rdp_svc_pipe_handler(guac_client* client, guac_stream* stream,
|
||||
char* mimetype, char* name);
|
||||
|
||||
/**
|
||||
* Handler for stream data related to file uploads.
|
||||
*/
|
||||
int guac_rdp_upload_blob_handler(guac_client* client, guac_stream* stream,
|
||||
void* data, int length);
|
||||
|
||||
/**
|
||||
* Handler for stream data related to static virtual channels.
|
||||
*/
|
||||
int guac_rdp_svc_blob_handler(guac_client* client, guac_stream* stream,
|
||||
void* data, int length);
|
||||
|
||||
/**
|
||||
* Handler for end-of-stream related to file uploads.
|
||||
*/
|
||||
int guac_rdp_upload_end_handler(guac_client* client, guac_stream* stream);
|
||||
|
||||
/**
|
||||
* Handler for acknowledgements of receipt of data related to file downloads.
|
||||
*/
|
||||
int guac_rdp_download_ack_handler(guac_client* client, guac_stream* stream,
|
||||
char* message, guac_protocol_status status);
|
||||
|
||||
#endif
|
||||
|
||||
Loading…
Reference in New Issue
Block a user