From 1bc382c0c65a3721982861d16abdeeecd651320e Mon Sep 17 00:00:00 2001
From: Chris Pomeroy <chris.pomeroy@hotmail.com>
Date: Thu, 30 Nov 2023 03:07:32 +0000
Subject: [PATCH] Starting the refactor of this project

---
 queryAudiobookServer.py |    0 
 filekeeper.py           |  170 ++++++++++++++++++++++++++++++++++
 aaxConvert.py           |  113 +++++++++++++---------
 3 files changed, 235 insertions(+), 48 deletions(-)

diff --git a/aaxConvert.py b/aaxConvert.py
index 73e347c..a022639 100755
--- a/aaxConvert.py
+++ b/aaxConvert.py
@@ -7,16 +7,20 @@
 import re
 import requests
 import sys
-from querysubsonic import findalbumbyname
+from queryAudiobookServer import findalbumbyname
 
 # arguments
 # activation_key, file name, codec(default to mp3)
 
 parser = argparse.ArgumentParser()
-parser.add_argument("-s", "--single", help="Use this option to create a single file. This is false by default", action="store_true")
-parser.add_argument("-d", "--dpath", help="Use this to set the destination path. Otherwise I will use the current directory")
-parser.add_argument("-v", "--verbose", help="Send output to stdout", action="store_true")
-parser.add_argument("filename", help="Filename to convert, or directory to look in")
+parser.add_argument("-s", "--single", help="Use this option to create a single\
+                     file. This is false by default", action="store_true")
+parser.add_argument("-d", "--dpath", help="Use this to set the destination\
+                    path. Otherwise I will use the current directory")
+parser.add_argument("-v", "--verbose", help="Send output to stdout", 
+                    action="store_true")
+parser.add_argument("filename", help="Filename to convert, or directory to\
+                     look in")
 
 args = parser.parse_args()
 
@@ -43,8 +47,10 @@
 
 def getmetadata(aaxfile):
     # Returns the metadata from an aax file
-    ret = subprocess.run(["ffprobe", "-v", "info", "-hide_banner", "-show_format", "-show_chapters",
-                          "-print_format", "json", os.path.abspath(aaxfile)], capture_output=True)
+    ret = subprocess.run(["ffprobe", "-v", "info", "-hide_banner",
+                          "-show_format", "-show_chapters",
+                          "-print_format", "json", 
+                          os.path.abspath(aaxfile)], capture_output=True)
 
     mdata = json.loads(ret.stdout)
     aret = ret.stderr.decode().split('\n')[0]
@@ -79,13 +85,18 @@
 
 def reencode(aaxfile, outpath):
     # decrypt and reencode to mp3
-    command = ("ffmpeg -loglevel error {} -activation_bytes {} -i {} -vn -codec:a libmp3lame -ab {}k -map_metadata -1 "
-               "-metadata \"title={}\" -metadata 'artist={}' -metadata 'album_artist={}' -metadata \"album={}\" -metadata 'date={}' "
-               "-metadata track=1/1 -metadata 'genre={}' -metadata 'copyright={}' \"{}\" ").format(stats, act_byte, aaxfile, getmetabitrate(),
-                                                                                                   getmetadatatags('title'), getmetadatatags('artist'),
-                                                                                                   getmetadatatags('album_artist'), getmetadatatags('album'),
-                                                                                                   getmetadatatags('date'), getmetadatatags('genre'),
-                                                                                                   getmetacopyright(), outpath)
+    command = (
+        "ffmpeg -loglevel error {} -activation_bytes {} -i"
+        " {} -vn -codec:a libmp3lame -ab {}k -map_metadata -1"
+        "-metadata \"title={}\" -metadata 'artist={}' -metadata"
+        " 'album_artist={}' -metadata \"album={}\" -metadata 'date={}' "
+        "-metadata track=1/1 -metadata 'genre={}' -metadata "
+        "'copyright={}' \"{}\" ").format(
+            stats, act_byte, aaxfile, getmetabitrate(),
+            getmetadatatags('title'), getmetadatatags('artist'),
+            getmetadatatags('album_artist'), getmetadatatags('album'),
+            getmetadatatags('date'), getmetadatatags('genre'),
+            getmetacopyright(), outpath)
     if args.verbose:
         print(command)
         process = subprocess.run(command, shell=True, capture_output=True)
@@ -118,7 +129,9 @@
 def movetochapters(path, outpath, chapter, title, start, end):
     # Creating individual chapters
 
-    outfile = "{}/Ch-{}_{}.mp3".format(outpath, chapter, title.replace(' ', '_'))
+    outfile = "{}/Ch-{}_{}.mp3".format(
+        outpath, chapter, title.replace(' ', '_')
+    )
     command = "ffmpeg -loglevel error {} -i \"{}\" -ss {} -to {} -codec:a copy -metadata 'track={}' \"{}\"".format(stats, path,
                                                                                                                    start, end,
                                                                                                                    chapter, outfile)
@@ -151,42 +164,46 @@
 def getcorrectkey():
     # request the key for the checksum
     try:
-        r = requests.post('http://faas.darkurthe.net/function/checkkey', metadata['checksum'], verify=False, timeout=None)
+        r = requests.post('http://faas.darkurthe.net/function/checkkey',
+                          metadata['checksum'], verify=False, timeout=None)
         return r.text.strip()
     except requests.exceptions.HTTPError as err:
         raise err
-        return None
+
+def findalbumbyname_stub(album):
+    return False
 
 
-for rfile in glob.glob(args.filename):
-    if rfile.find("aax") != -1 and os.path.isfile(rfile):
-        metadata = getmetadata(rfile)
-        album = getmetadatatags('album')
-        # See if we got it already
-        if not findalbumbyname(album):
-            artist = normalize_data(getmetadatatags('artist'))
-            title = normalize_data(getmetadatatags('title'))
-            act_byte = getcorrectkey()
-            if act_byte is None:
-                sys.exit("Can't continue with this file {rfile}")
-            else:
-                ddir = "%s/%s/%s" % (path, artist, title)
-                single_file_path = "/processing/%s.mp3" % (title)
-                if not os.path.exists(ddir):
-                    os.makedirs(ddir)
-                print(ddir)
-                reencode(rfile, single_file_path)
-                if mode == 'chapter':
-                    chapter = 0
-                    numchapters = getchaptercount()
-                    while (numchapters > 0):
-                        cstart = getchaptermetadata(chapter, 'start_time')
-                        cend = getchaptermetadata(chapter, 'end_time')
-                        chapter += 1
-                        numchapters -= 1
-                        schap = str(chapter).zfill(2)
-                        movetochapters(single_file_path, ddir, schap, title, cstart, cend)
-                    os.remove(single_file_path)
-                getcoverart(rfile, ddir)
+if args.filename.find("aax"):
+    rfile = args.filename
+    metadata = getmetadata(rfile)
+    album = getmetadatatags('album')
+    # See if we got it already
+    if not findalbumbyname(album):
+        artist = normalize_data(getmetadatatags('artist'))
+        title = normalize_data(getmetadatatags('title'))
+        act_byte = getcorrectkey()
+        if act_byte is None or act_byte == '':
+            sys.exit(f"Can't continue with this file {rfile}")
         else:
-            print('We have that book already')
+            ddir = "%s/%s/%s" % (path, artist, title)
+            single_file_path = "/processing/%s.mp3" % (title)
+            if not os.path.exists(ddir):
+                os.makedirs(ddir)
+            print(ddir)
+            reencode(rfile, single_file_path)
+            if mode == 'chapter':
+                chapter = 0
+                numchapters = getchaptercount()
+                while (numchapters > 0):
+                    cstart = getchaptermetadata(chapter, 'start_time')
+                    cend = getchaptermetadata(chapter, 'end_time')
+                    chapter += 1
+                    numchapters -= 1
+                    schap = str(chapter).zfill(2)
+                    movetochapters(single_file_path, ddir, schap, title,
+                                   cstart, cend)
+                os.remove(single_file_path)
+            getcoverart(rfile, ddir)
+    else:
+        print('We have that book already')
diff --git a/filekeeper.py b/filekeeper.py
new file mode 100755
index 0000000..22a5db7
--- /dev/null
+++ b/filekeeper.py
@@ -0,0 +1,170 @@
+#!/usr/local/bin/python -u
+
+import os
+import sys
+import subprocess
+import shutil
+import time
+import hashlib
+
+# path = "/home/audiobooks/Incoming"
+path = str(os.environ['AAXPATH'])
+archivepath = str(os.environ['ARCHIVEPATH'])
+dpath = str(os.environ['DESTPATH'])
+errorinprocessing = False
+
+
+def getMD5(fpathaudiofile):
+    with open(fpathaudiofile, "rb") as f:
+        file_hash = hashlib.md5()
+        while chunk := f.read(8192):
+            file_hash.update(chunk)
+    return file_hash.digest()
+
+
+def changebadfilename(fpathaudiofile):
+    # This is used in the case of a zero length file
+    os.rename(fpathaudiofile, str(fpathaudiofile) + ".bad")
+
+
+def waitforupload(fpathaudiofile):
+    # Wait for the file to finish uploading
+    fsize_a = 0
+    fsizecompare = 0
+    loopcount = 0
+
+    while fsizecompare == 0:
+        fsize_b = os.path.getsize(fpathaudiofile)
+        if fsize_b == 0:
+            loopcount += 1
+            if loopcount == 24:
+                changebadfilename(fpathaudiofile)
+                return False
+            time.sleep(5)
+            continue
+        if fsize_a == fsize_b:
+            fsizecompare = 1
+        else:
+            fsize_a = fsize_b
+        time.sleep(1)
+    return True
+
+
+def checkforaudiofile():
+    # Check the directory for files to process
+    if os.path.isdir(path):
+        files = os.listdir(path)
+        for audio in files:
+            fpath = path + "/" + audio
+            if ((audio.endswith('aax')) and (checkforlock(fpath) is False)):
+                if waitforupload(fpath):
+                    return audio
+                else:
+                    return "None"
+
+
+def createlockfile(fpath):
+    # create 0byte file with filename.aax.lock
+    lockfile = fpath + ".lock"
+    print(f"{time.asctime()} #Creating Lock file: {lockfile}")
+    try:
+        open(lockfile, "w")
+    except Exception as err:
+        sys.stderr.write("Couldn't create lock file: {}\n".format(err))
+        errorinprocessing = True
+
+
+def cpfiletoprocessing(fpath, audio):
+    # Copy the file to the processing location
+    print("Copying the file to processing " + audio)
+    try:
+        shutil.copy(fpath, "/processing/")
+    except Exception as err:
+        sys.stderr.write("Couldn't copy the file to processing: {}\n"
+                         .format(err)
+                         )
+        errorinprocessing = True
+
+
+def processfile(audio):
+    # process the file.  Convert from aax to mp3 back on the NAS
+    print(f"{time.asctime()} #Processing {audio}")
+    command = "./aaxConvert.py -v -d {} /processing/{}\n".format(dpath, audio)
+    subprocess.run(command, shell=True)
+
+
+def copyToArchive(fpath, audio):
+    # move aax to archive filesystem
+    archive = archivepath + "/" + audio
+    try:
+        shutil.copy(fpath, archive)
+    except Exception as err:
+        sys.stderr.write(
+            f"{time.asctime()} #Couldn't copy file to the archive: {err}\n"
+        )
+        errorinprocessing = True
+
+
+def cleanup(fpath, audio):
+    # cleanup after yourself
+    #  print"clean up debug: {}".format(fpath)
+    # TODO verify md5 hash of archive and original before delete
+    archive = archivepath + "/" + audio
+    orginial_hash = getMD5(fpath)
+    archive_file = getMD5(archive)
+
+    if orginial_hash == archive_file:
+        try:
+            lockfile = fpath + ".lock"
+            print("Removing lock file: " + lockfile)
+            os.remove(lockfile)
+            os.remove(fpath)
+            os.remove('/processing/' + audio)
+        except Exception as err:
+            sys.stderr.write(
+                f"{time.asctime()} Couldn't clean up after myself to the archive: {err}\n"  # noqa E501
+            )
+            errorinprocessing = True
+    else:
+        print("Checksum's do not match for fpath.  I am not cleaning up")
+
+
+def checkforlock(fpathaudiofile):
+    # Need to check for .lock file in this function.
+    lockfile = fpathaudiofile + ".lock"
+    if os.path.exists(lockfile):
+        return True
+    else:
+        return False
+
+
+def loopforever():
+    # main loop for running the app
+    while True:
+        # print("Looking for files in {}\n").format(path)
+        audio = str(checkforaudiofile())
+        if audio != "None":
+            fpath = path + '/' + audio
+            print(f"Debug: {fpath}")
+            print(f"{time.asctime()} #Processing file: {audio}\n")
+            try:
+                createlockfile(fpath)
+                cpfiletoprocessing(fpath, audio)  # copy file
+                processfile(audio)  # process file
+
+                # Copy file from Incoming to archive
+                copyToArchive(fpath, audio)
+
+                cleanup(fpath, audio)  # Clean up the processing dir
+
+                if errorinprocessing is True: # noqa F823
+                    print(f"{time.asctime()}There is a error with {audio}\n")
+
+            except Exception:
+                continue
+            time.sleep(15)
+            errorinprocessing = False
+
+
+if __name__ == "__main__":
+    loopforever()
diff --git a/querysubsonic.py b/queryAudiobookServer.py
similarity index 100%
rename from querysubsonic.py
rename to queryAudiobookServer.py

--
Gitblit v1.10.0