Rename; Removed deps from repo

jellypy/log_reader.py

@@ -0,0 +1,108 @@
+# -*- coding: utf-8 -*-
+
+#  This file is part of Tautulli.
+#
+#  Tautulli is free software: you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation, either version 3 of the License, or
+#  (at your option) any later version.
+#
+#  Tautulli is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with Tautulli.  If not, see <http://www.gnu.org/licenses/>.
+
+from __future__ import unicode_literals
+from io import open
+
+import os
+
+import jellypy
+if jellypy.PYTHON2:
+    import helpers
+    import logger
+else:
+    from jellypy import helpers
+    from jellypy import logger
+
+
+def get_log_tail(window=20, parsed=True, log_type="server"):
+
+    if jellypy.CONFIG.PMS_LOGS_FOLDER:
+        log_file = ""
+        if log_type == "server":
+            log_file = os.path.join(jellypy.CONFIG.PMS_LOGS_FOLDER, 'Plex Media Server.log')
+        elif log_type == "scanner":
+            log_file = os.path.join(jellypy.CONFIG.PMS_LOGS_FOLDER, 'Plex Media Scanner.log')
+    else:
+        return []
+
+    try:
+        logfile = open(log_file, "r", encoding="utf-8")
+    except IOError as e:
+        logger.error('Unable to open Plex Log file. %s' % e)
+        return []
+
+    log_lines = tail(logfile, window)
+
+    if parsed:
+        line_error = False
+        clean_lines = []
+        for i in log_lines:
+            try:
+                log_time = i.split(' [')[0]
+                log_level = i.split('] ', 1)[1].split(' - ', 1)[0]
+                log_msg = i.split('] ', 1)[1].split(' - ', 1)[1]
+                full_line = [log_time, log_level, log_msg]
+                clean_lines.append(full_line)
+            except:
+                line_error = True
+                full_line = ['', '', 'Unable to parse log line.']
+                clean_lines.append(full_line)
+
+        if line_error:
+            logger.error('Tautulli was unable to parse some lines of the Plex Media Server log.')
+
+        return clean_lines
+    else:
+        raw_lines = []
+        for i in log_lines:
+            raw_lines.append(helpers.latinToAscii(i))
+
+        return raw_lines
+
+    return log_lines
+
+# http://stackoverflow.com/a/13790289/2405162
+def tail(f, lines=1, _buffer=4098):
+    """Tail a file and get X lines from the end"""
+    # place holder for the lines found
+    lines_found = []
+
+    # block counter will be multiplied by buffer
+    # to get the block size from the end
+    block_counter = -1
+
+    # loop until we find X lines
+    while len(lines_found) < lines:
+        try:
+            f.seek(block_counter * _buffer, os.SEEK_END)
+        except IOError:  # either file is too small, or too many lines requested
+            f.seek(0)
+            lines_found = f.readlines()
+            break
+
+        lines_found = f.readlines()
+
+        # we found enough lines, get out
+        if len(lines_found) > lines:
+            break
+
+        # decrement the block counter to get the
+        # next X bytes
+        block_counter -= 1
+
+    return lines_found[-lines:]