improved plugin loader, import hook to always use newest plugin versions

1 files changed, 93 insertions, 0 deletions

diff --git a/module/plugins/internal/AbstractExtractor.py b/module/plugins/internal/AbstractExtractor.py
new file mode 100644
index 000000000..2130f910e
--- /dev/null
+++ b/module/plugins/internal/AbstractExtractor.py
@@ -0,0 +1,93 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+class ArchiveError(Exception):
+    pass
+
+class CRCError(Exception):
+    pass
+
+class WrongPassword(Exception):
+    pass
+
+class AbtractExtractor:
+    @staticmethod
+    def checkDeps():
+        """ Check if system statisfy dependencies
+        :return: boolean
+        """
+        return True
+
+    @staticmethod
+    def getTargets(files_ids):
+        """ Filter suited targets from list of filename id tuple list
+        :param files_ids: List of filepathes
+        :return: List of targets, id tuple list
+        """
+        raise NotImplementedError
+
+
+    def __init__(self, m, file, out, fullpath, overwrite, renice):
+        """Initialize extractor for specific file
+
+        :param m: ExtractArchive Hook plugin
+        :param file: Absolute filepath
+        :param out: Absolute path to destination directory
+        :param fullpath: extract to fullpath
+        :param overwrite: Overwrite existing archives
+        :param renice: Renice value
+        """
+        self.m = m
+        self.file = file
+        self.out = out
+        self.fullpath = fullpath
+        self.overwrite = overwrite
+        self.renice = renice
+        self.files = [] # Store extracted files here
+
+
+    def init(self):
+        """ Initialize additional data structures """
+        pass
+
+
+    def checkArchive(self):
+        """Check if password if needed. Raise ArchiveError if integrity is
+        questionable.
+
+        :return: boolean
+        :raises ArchiveError
+        """
+        return False
+
+    def checkPassword(self, password):
+        """ Check if the given password is/might be correct.
+        If it can not be decided at this point return true.
+
+        :param password:
+        :return: boolean
+        """
+        return True
+
+    def extract(self, progress, password=None):
+        """Extract the archive. Raise specific errors in case of failure.
+
+        :param progress: Progress function, call this to update status
+        :param password password to use
+        :raises WrongPassword
+        :raises CRCError
+        :raises ArchiveError
+        :return:
+        """
+        raise NotImplementedError
+
+    def getDeleteFiles(self):
+        """Return list of files to delete, do *not* delete them here.
+
+        :return: List with paths of files to delete
+        """
+        raise NotImplementedError
+
+    def getExtractedFiles(self):
+        """Populate self.files at some point while extracting"""
+        return self.files
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