2 files changed, 227 insertions(+), 0 deletions(-)

A file-browser/include/local_file_access.h
A file-browser/src/local_file_access.c

@@ 0,0 1,21 @@
+#ifndef __LOCAL_FILE_ACCESS_H__
+#define __LOCAL_FILE_ACCESS_H__
+
+#include "file_access.h"
+
+fileaccess_state_t local_fileaccess_init_state(void *data);
+bool local_fileaccess_deinit_state(fileaccess_state_t state);
+
+directory_or_error_t local_fileaccess_directory_list(fileaccess_state_t state, char *path);
+directory_or_error_t local_fileaccess_root_list(fileaccess_state_t state);
+
+directory_or_error_t local_fileaccess_directory_create(fileaccess_state_t state, char *path);
+file_operation_error_t local_fileaccess_directory_delete(fileaccess_state_t state, char *path);
+
+file_operation_error_t local_fileaccess_directory_close(fileaccess_state_t state, directory_t *directory);
+
+file_operation_error_t local_fileaccess_file_get_mime_type(fileaccess_state_t state, file_t *file, char *mime);
+pid_or_error_t local_fileaccess_file_execute(fileaccess_state_t state, file_t *file, char *args);
+file_operation_error_t local_fileaccess_file_delete(fileaccess_state_t state, char *path);
+
+#endif // __LOCAL_FILE_ACCESS_H__

@@ 0,0 1,206 @@
+#include "local_file_access.h"
+#include "file_access.h"
+#include "path.h"
+#include <errno.h>
+#include <ftw.h>
+#include <magic.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+
+#define ROOT "/"
+static int nfw_callback(const char *fpath, const struct stat *sb, int typeflag);
+static int delete_file(const char *path);
+static int delete_directory(const char *path);
+
+static int delete_directory(const char *path) {
+  int err = ftw(path, nfw_callback, 5);
+  if (err != 1) {
+    err = FILOPER_UNKNOWN;
+  }
+
+  if (err != 0) {
+    return err;
+  }
+
+  return delete_file(path);
+}
+
+static int delete_file(const char *path) {
+  int err = 0;
+  if (remove(path) == -1) {
+    err = file_operation_error_from_errno(errno);
+  }
+
+  return err;
+}
+
+static int nfw_callback(const char *fpath, const struct stat *sb,
+                        int typeflag) {
+  if (typeflag == FTW_D) {
+    return delete_directory(fpath);
+  } else {
+    return delete_file(fpath);
+  }
+}
+
+fileaccess_state_t local_fileaccess_init_state(void *data) {
+  fileaccess_state_t state = {.state = ROOT, .fileaccess = &local_file_access};
+  return state;
+}
+
+bool local_fileaccess_deinit_state(fileaccess_state_t data) {
+  // nothing needs to be done
+  return true;
+}
+
+directory_or_error_t local_fileaccess_directory_list(fileaccess_state_t state,
+                                                     char *path) {
+  directory_or_error_t ret;
+  char *full_path = path_join((char *)state.state, path);
+  if (full_path == NULL) {
+    ret.error = true;
+    ret.payload.error = FILOPER_UNKNOWN;
+    return ret;
+  }
+
+  free(full_path);
+  return ret;
+}
+
+directory_or_error_t local_fileaccess_root_list(fileaccess_state_t state) {
+  return local_fileaccess_directory_list(state, (char *)state.state);
+}
+
+directory_or_error_t local_fileaccess_directory_create(fileaccess_state_t state,
+                                                       char *path) {
+  directory_or_error_t ret;
+  char *full_path = path_join((char *)state.state, path);
+  if (full_path == NULL) {
+    ret.error = true;
+    ret.payload.error = FILOPER_UNKNOWN;
+    return ret;
+  }
+
+  int status = mkdir(full_path, S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH);
+
+  if (status == -1) {
+    ret.error = true;
+    ret.payload.error = file_operation_error_from_errno(errno);
+  } else {
+    ret = local_fileaccess_directory_list(state, full_path);
+  }
+
+  free(full_path);
+  return ret;
+}
+
+file_operation_error_t
+local_fileaccess_directory_delete(fileaccess_state_t state, char *path) {
+  file_operation_error_t error = FILOPER_SUCCESS;
+  char *full_path = path_join((char *)state.state, path);
+  if (full_path == NULL) {
+    return FILOPER_UNKNOWN;
+  }
+
+  int status = delete_directory(full_path);
+  if (status != 0) {
+    error = status;
+  }
+
+  free(full_path);
+  return error;
+}
+
+file_operation_error_t
+local_fileaccess_directory_close(fileaccess_state_t state,
+                                 directory_t *directory) {
+  free(directory);
+  return FILOPER_SUCCESS;
+}
+
+file_operation_error_t
+local_fileaccess_file_get_mime_type(fileaccess_state_t state, file_t *file,
+                                    char *mime) {
+  file_operation_error_t error = FILOPER_SUCCESS;
+
+  magic_t magic = magic_open(MAGIC_MIME_TYPE);
+  magic_load(magic, NULL);
+
+  char *full_path = path_join((char *)state.state, file->path);
+  if (full_path == NULL) {
+    return FILOPER_UNKNOWN;
+  }
+
+  const char *data = magic_file(magic, full_path);
+  if (data == NULL) {
+    error = file_operation_error_from_errno(errno);
+  }
+
+  uint16_t i = 0;
+  while (*data != '\0') {
+    mime[i++] = *data;
+  }
+  mime[i] = '\0';
+
+  free(full_path);
+  magic_close(magic);
+  return error;
+}
+
+executing_file_or_error_t local_fileaccess_file_execute(fileaccess_state_t state,
+                                             file_t *file, char *args) {
+  executing_file_or_error_t ret;
+  char *full_path = path_join((char *)state.state, file->path);
+  // TODO: check permissions
+
+  if (full_path == NULL) {
+    ret.error = true;
+    ret.payload.error = FILOPER_UNKNOWN;
+    return ret;
+  }
+
+  executing_file_error_t efile = executing_file_execute(full_path, args);
+  if (efile.error == true) {
+    ret.error = true;
+    ret.payload.error = FILOPER_UNKNOWN;
+  } else {
+    ret.payload.file = efile.file;
+  }
+
+  free(full_path);
+  return ret;
+}
+
+file_operation_error_t local_fileaccess_file_delete(fileaccess_state_t state,
+                                                    char *path) {
+  file_operation_error_t error = FILOPER_SUCCESS;
+  char *full_path = path_join((char *)state.state, path);
+
+  if (full_path == NULL) {
+    return FILOPER_UNKNOWN;
+  }
+
+  int status = remove(path);
+
+  if (status == -1) {
+    error = file_operation_error_from_errno(errno);
+  }
+
+  free(full_path);
+  return error;
+}
+
+const fileaccess_t local_file_access = {
+    .type = FA_LOCAL,
+    .delete_file = local_fileaccess_file_delete,
+    .delete_directory = local_fileaccess_directory_delete,
+    .close_directory = local_fileaccess_directory_close,
+    .create_directory = local_fileaccess_directory_create,
+    .list_directory = local_fileaccess_directory_list,
+    .list_root = local_fileaccess_root_list,
+    .init = local_fileaccess_init_state,
+    .deinit = local_fileaccess_deinit_state,
+    .get_mime_type = local_fileaccess_file_get_mime_type,
+    .execute_file = local_fileaccess_file_execute,
+};