grr/server/grr_response_server/file_store.py
def OpenFile(client_path, max_timestamp=None):
  """Opens latest content of a given file for reading.

  Args:
    client_path: A db.ClientPath object describing path to a file.
    max_timestamp: If specified, will open the last collected version with a
      timestamp equal or lower than max_timestamp. If not specified, will simply
      open the latest version.

  Returns:
    A file like object with random access support.

  Raises:
    FileHasNoContentError: if the file was never collected.
    MissingBlobReferencesError: if one of the blobs was not found.
  """

  path_info = data_store.REL_DB.ReadLatestPathInfosWithHashBlobReferences(
      [client_path], max_timestamp=max_timestamp)[client_path]

  if path_info is None:
    raise FileHasNoContentError(client_path)

  hash_id = rdf_objects.SHA256HashID.FromBytes(
      path_info.hash_entry.sha256.AsBytes())
  blob_references = data_store.REL_DB.ReadHashBlobReferences([hash_id])[hash_id]

  if blob_references is None:
    raise MissingBlobReferencesError(
        "File hash was expected to have corresponding "
        "blob references, but they were not found: %r" % hash_id)

  return BlobStream(client_path, blob_references, hash_id)
Opens latest content of a given file for reading.

  Args:
    client_path: A db.ClientPath object describing path to a file.
    max_timestamp: If specified, will open the last collected version with a
      timestamp equal or lower than max_timestamp. If not specified, will simply
      open the latest version.

  Returns:
    A file like object with random access support.

  Raises:
    FileHasNoContentError: if the file was never collected.
    MissingBlobReferencesError: if one of the blobs was not found.
  
Opens latest content of a given file for reading.
Opens latest content of a given file for reading .
def OpenFile(client_path, max_timestamp=None):
  path_info = data_store.REL_DB.ReadLatestPathInfosWithHashBlobReferences(
      [client_path], max_timestamp=max_timestamp)[client_path]
  if path_info is None:
    raise FileHasNoContentError(client_path)
  hash_id = rdf_objects.SHA256HashID.FromBytes(
      path_info.hash_entry.sha256.AsBytes())
  blob_references = data_store.REL_DB.ReadHashBlobReferences([hash_id])[hash_id]
  if blob_references is None:
    raise MissingBlobReferencesError(
        "File hash was expected to have corresponding "
        "blob references, but they were not found: %r" % hash_id)
  return BlobStream(client_path, blob_references, hash_id)
def OpenFile ( client_path , max_timestamp = None ) : path_info = data_store . REL_DB . ReadLatestPathInfosWithHashBlobReferences ( [ client_path ] , max_timestamp = max_timestamp ) [ client_path ] if path_info is None : raise FileHasNoContentError ( client_path ) hash_id = rdf_objects . SHA256HashID . FromBytes ( path_info . hash_entry . sha256 . AsBytes ( ) ) blob_references = data_store . REL_DB . ReadHashBlobReferences ( [ hash_id ] ) [ hash_id ] if blob_references is None : raise MissingBlobReferencesError ( "File hash was expected to have corresponding " "blob references, but they were not found: %r" % hash_id ) return BlobStream ( client_path , blob_references , hash_id )
Opens latest content of a given file for reading.
Opens latest content of a given file for reading .
"""Opens latest content of a given file for reading.

  Args:
    client_path: A db.ClientPath object describing path to a file.
    max_timestamp: If specified, will open the last collected version with a
      timestamp equal or lower than max_timestamp. If not specified, will simply
      open the latest version.

  Returns:
    A file like object with random access support.

  Raises:
    FileHasNoContentError: if the file was never collected.
    MissingBlobReferencesError: if one of the blobs was not found.
  """
A file like object with random access support.
A file like object with random access support .
if the file was never collected.
if the file was never collected .
FileHasNoContentError
if one of the blobs was not found.
if one of the blobs was not found .
MissingBlobReferencesError
client_path
A db.ClientPath object describing path to a file.
A db . ClientPath object describing path to a file .
max_timestamp
If specified, will open the last collected version with a
timestamp equal or lower than max_timestamp. If not specified, will simply
open the latest version.
If specified will open the last collected version with a timestamp equal or lower than max_timestamp . If not specified will simply open the latest version .