Move bencoded info dicts from mysql torrent_info table to info_dict directory. DB change!

IMPORTANT!!! Make sure to run utils/infodict_mysql2file.py before upgrading the database.

.gitignore

@@ -14,16 +14,15 @@ __pycache__
 
 # Databases
 *.sql
-test.db
+/test.db
 
 # Webserver
-uwsgi.sock
+/uwsgi.sock
 
 # Application
-install/*
+/install/*
-config.py
+/config.py
 /test_torrent_batch
-torrents
 
 # Other
 *.swp

info_dicts/.gitignore

@@ -0,0 +1,2 @@
+*
+!.gitignore

migrations/versions/b61e4f6a88cc_del_torrents_info.py

@@ -0,0 +1,57 @@
+"""Remove bencoded info dicts from mysql
+
+Revision ID: b61e4f6a88cc
+Revises: 500117641608
+Create Date: 2017-08-29 01:45:08.357936
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import mysql
+import sys
+
+# revision identifiers, used by Alembic.
+revision = 'b61e4f6a88cc'
+down_revision = '500117641608'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    print("--- WARNING ---")
+    print("This migration drops the torrent_info tables.")
+    print("You will lose all of your .torrent files if you have not converted them beforehand.")
+    print("Use the migration script at utils/infodict_mysql2file.py")
+    print("Type OKAY and hit Enter to continue, CTRL-C to abort.")
+    print("--- WARNING ---")
+    try:
+        if input() != "OKAY":
+            sys.exit(1)
+    except KeyboardInterrupt:
+        sys.exit(1)
+
+    op.drop_table('sukebei_torrents_info')
+    op.drop_table('nyaa_torrents_info')
+
+
+def downgrade():
+    op.create_table('nyaa_torrents_info',
+    sa.Column('info_dict', mysql.MEDIUMBLOB(), nullable=True),
+    sa.Column('torrent_id', mysql.INTEGER(display_width=11), autoincrement=False, nullable=False),
+    sa.ForeignKeyConstraint(['torrent_id'], ['nyaa_torrents.id'], name='nyaa_torrents_info_ibfk_1', ondelete='CASCADE'),
+    sa.PrimaryKeyConstraint('torrent_id'),
+    mysql_collate='utf8_bin',
+    mysql_default_charset='utf8',
+    mysql_engine='InnoDB',
+    mysql_row_format='COMPRESSED'
+    )
+    op.create_table('sukebei_torrents_info',
+    sa.Column('info_dict', mysql.MEDIUMBLOB(), nullable=True),
+    sa.Column('torrent_id', mysql.INTEGER(display_width=11), autoincrement=False, nullable=False),
+    sa.ForeignKeyConstraint(['torrent_id'], ['sukebei_torrents.id'], name='sukebei_torrents_info_ibfk_1', ondelete='CASCADE'),
+    sa.PrimaryKeyConstraint('torrent_id'),
+    mysql_collate='utf8_bin',
+    mysql_default_charset='utf8',
+    mysql_engine='InnoDB',
+    mysql_row_format='COMPRESSED'
+    )

nyaa/api_handler.py

@@ -1,13 +1,11 @@
 import binascii
 import functools
 import json
-import os.path
 import re
 
 import flask
 
-from nyaa import backend, bencode, forms, models, utils
+from nyaa import backend, forms, models
-from nyaa.extensions import db
 from nyaa.views.torrents import _create_upload_category_choices
 
 api_blueprint = flask.Blueprint('api', __name__, url_prefix='/api')
@@ -120,142 +118,6 @@ def v2_api_upload():
     return flask.jsonify({'errors': mapped_errors}), 400
 
 
-# #################################### TEMPORARY ####################################
-
-from orderedset import OrderedSet  # noqa: E402 isort:skip
-
-
-@api_blueprint.route('/ghetto_import', methods=['POST'])
-def ghetto_import():
-    if flask.request.remote_addr != '127.0.0.1':
-        return flask.error(403)
-
-    torrent_file = flask.request.files.get('torrent')
-
-    try:
-        torrent_dict = bencode.decode(torrent_file)
-        # field.data.close()
-    except (bencode.MalformedBencodeException, UnicodeError):
-        return 'Malformed torrent file', 500
-
-    try:
-        forms._validate_torrent_metadata(torrent_dict)
-    except AssertionError as e:
-        return 'Malformed torrent metadata ({})'.format(e.args[0]), 500
-
-    try:
-        tracker_found = forms._validate_trackers(torrent_dict)  # noqa F841
-    except AssertionError as e:
-        return 'Malformed torrent trackers ({})'.format(e.args[0]), 500
-
-    bencoded_info_dict = bencode.encode(torrent_dict['info'])
-    info_hash = utils.sha1_hash(bencoded_info_dict)
-
-    # Check if the info_hash exists already in the database
-    torrent = models.Torrent.by_info_hash(info_hash)
-    if not torrent:
-        return 'This torrent does not exists', 500
-
-    if torrent.has_torrent:
-        return 'This torrent already has_torrent', 500
-
-    # Torrent is legit, pass original filename and dict along
-    torrent_data = forms.TorrentFileData(filename=os.path.basename(torrent_file.filename),
-                                         torrent_dict=torrent_dict,
-                                         info_hash=info_hash,
-                                         bencoded_info_dict=bencoded_info_dict)
-
-    # The torrent has been  validated and is safe to access with ['foo'] etc - all relevant
-    # keys and values have been checked for (see UploadForm in forms.py for details)
-    info_dict = torrent_data.torrent_dict['info']
-
-    changed_to_utf8 = backend._replace_utf8_values(torrent_data.torrent_dict)
-
-    torrent_filesize = info_dict.get('length') or sum(
-        f['length'] for f in info_dict.get('files'))
-
-    # In case no encoding, assume UTF-8.
-    torrent_encoding = torrent_data.torrent_dict.get('encoding', b'utf-8').decode('utf-8')
-
-    # Store bencoded info_dict
-    torrent.info = models.TorrentInfo(info_dict=torrent_data.bencoded_info_dict)
-    torrent.has_torrent = True
-
-    # To simplify parsing the filelist, turn single-file torrent into a list
-    torrent_filelist = info_dict.get('files')
-
-    used_path_encoding = changed_to_utf8 and 'utf-8' or torrent_encoding
-
-    parsed_file_tree = dict()
-    if not torrent_filelist:
-        # If single-file, the root will be the file-tree (no directory)
-        file_tree_root = parsed_file_tree
-        torrent_filelist = [{'length': torrent_filesize, 'path': [info_dict['name']]}]
-    else:
-        # If multi-file, use the directory name as root for files
-        file_tree_root = parsed_file_tree.setdefault(
-            info_dict['name'].decode(used_path_encoding), {})
-
-    # Parse file dicts into a tree
-    for file_dict in torrent_filelist:
-        # Decode path parts from utf8-bytes
-        path_parts = [path_part.decode(used_path_encoding) for path_part in file_dict['path']]
-
-        filename = path_parts.pop()
-        current_directory = file_tree_root
-
-        for directory in path_parts:
-            current_directory = current_directory.setdefault(directory, {})
-
-        # Don't add empty filenames (BitComet directory)
-        if filename:
-            current_directory[filename] = file_dict['length']
-
-    parsed_file_tree = utils.sorted_pathdict(parsed_file_tree)
-
-    json_bytes = json.dumps(parsed_file_tree, separators=(',', ':')).encode('utf8')
-    torrent.filelist = models.TorrentFilelist(filelist_blob=json_bytes)
-
-    db.session.add(torrent)
-    db.session.flush()
-
-    # Store the users trackers
-    trackers = OrderedSet()
-    announce = torrent_data.torrent_dict.get('announce', b'').decode('ascii')
-    if announce:
-        trackers.add(announce)
-
-    # List of lists with single item
-    announce_list = torrent_data.torrent_dict.get('announce-list', [])
-    for announce in announce_list:
-        trackers.add(announce[0].decode('ascii'))
-
-    # Remove our trackers, maybe? TODO ?
-
-    # Search for/Add trackers in DB
-    db_trackers = OrderedSet()
-    for announce in trackers:
-        tracker = models.Trackers.by_uri(announce)
-
-        # Insert new tracker if not found
-        if not tracker:
-            tracker = models.Trackers(uri=announce)
-            db.session.add(tracker)
-            db.session.flush()
-
-        db_trackers.add(tracker)
-
-    # Store tracker refs in DB
-    for order, tracker in enumerate(db_trackers):
-        torrent_tracker = models.TorrentTrackers(torrent_id=torrent.id,
-                                                 tracker_id=tracker.id, order=order)
-        db.session.add(torrent_tracker)
-
-    db.session.commit()
-
-    return 'success'
-
-
 # ####################################### INFO #######################################
 ID_PATTERN = '^[0-9]+$'
 INFO_HASH_PATTERN = '^[0-9a-fA-F]{40}$'  # INFO_HASH as string

nyaa/backend.py

@@ -162,9 +162,10 @@ def handle_torrent_upload(upload_form, uploading_user=None, fromAPI=False):
 
     # Delete exisiting torrent which is marked as deleted
     if torrent_data.db_id is not None:
-        models.Torrent.query.filter_by(id=torrent_data.db_id).delete()
+        oldtorrent = models.Torrent.by_id(torrent_data.db_id)
+        _delete_torrent_file(oldtorrent)
+        db.session.delete(oldtorrent)
         db.session.commit()
-        _delete_cached_torrent_file(torrent_data.db_id)
 
     # The torrent has been  validated and is safe to access with ['foo'] etc - all relevant
     # keys and values have been checked for (see UploadForm in forms.py for details)
@@ -195,7 +196,15 @@ def handle_torrent_upload(upload_form, uploading_user=None, fromAPI=False):
                              uploader_ip=ip_address(flask.request.remote_addr).packed)
 
     # Store bencoded info_dict
-    torrent.info = models.TorrentInfo(info_dict=torrent_data.bencoded_info_dict)
+    info_hash = torrent_data.info_hash.hex().lower()
+    path = os.path.join(app.config['BASE_DIR'], 'info_dicts',
+                        info_hash[0:2], info_hash[2:4])
+    if not os.path.exists(path):
+        os.makedirs(path)
+    path = os.path.join(path, info_hash)
+    with open(path, 'wb') as fp:
+        fp.write(torrent_data.bencoded_info_dict)
+
     torrent.stats = models.Statistic()
     torrent.has_torrent = True
 
@@ -361,9 +370,10 @@ def tracker_api(info_hashes, method):
     return True
 
 
-def _delete_cached_torrent_file(torrent_id):
+def _delete_torrent_file(torrent):
-    # Note: obviously temporary
+    info_hash = torrent.info_hash_as_hex
-    cached_torrent = os.path.join(app.config['BASE_DIR'],
+    path = os.path.join(app.config['BASE_DIR'], 'info_dicts',
-                                  'torrent_cache', str(torrent_id) + '.torrent')
+                        info_hash[0:2], info_hash[2:4], info_hash)
-    if os.path.exists(cached_torrent):
+
-        os.remove(cached_torrent)
+    if os.path.exists(path):
+        os.remove(path)

nyaa/models.py

@@ -170,11 +170,6 @@ class TorrentBase(DeclarativeHelperBase):
                                backref='torrents', lazy="joined",
                                primaryjoin=join_sql.format(cls.__flavor__))
 
-    @declarative.declared_attr
-    def info(cls):
-        return db.relationship(cls._flavor_prefix('TorrentInfo'), uselist=False,
-                               cascade="all, delete-orphan", back_populates='torrent')
-
     @declarative.declared_attr
     def filelist(cls):
         return db.relationship(cls._flavor_prefix('TorrentFilelist'), uselist=False,
@@ -235,7 +230,7 @@ class TorrentBase(DeclarativeHelperBase):
 
     @property
     def info_hash_as_hex(self):
-        return self.info_hash.hex()
+        return self.info_hash.hex().lower()
 
     @property
     def magnet_uri(self):
@@ -290,22 +285,6 @@ class TorrentFilelistBase(DeclarativeHelperBase):
                                back_populates='filelist')
 
 
-class TorrentInfoBase(DeclarativeHelperBase):
-    __tablename_base__ = 'torrents_info'
-
-    __table_args__ = {'mysql_row_format': 'COMPRESSED'}
-
-    @declarative.declared_attr
-    def torrent_id(cls):
-        return db.Column(db.Integer, db.ForeignKey(
-            cls._table_prefix('torrents.id'), ondelete="CASCADE"), primary_key=True)
-    info_dict = db.Column(MediumBlobType, nullable=True)
-
-    @declarative.declared_attr
-    def torrent(cls):
-        return db.relationship(cls._flavor_prefix('Torrent'), uselist=False, back_populates='info')
-
-
 class StatisticBase(DeclarativeHelperBase):
     __tablename_base__ = 'statistics'
 
@@ -806,15 +785,6 @@ class SukebeiTorrentFilelist(TorrentFilelistBase, db.Model):
     __flavor__ = 'Sukebei'
 
 
-# TorrentInfo
-class NyaaTorrentInfo(TorrentInfoBase, db.Model):
-    __flavor__ = 'Nyaa'
-
-
-class SukebeiTorrentInfo(TorrentInfoBase, db.Model):
-    __flavor__ = 'Sukebei'
-
-
 # Statistic
 class NyaaStatistic(StatisticBase, db.Model):
     __flavor__ = 'Nyaa'
@@ -882,7 +852,6 @@ class SukebeiReport(ReportBase, db.Model):
 if config['SITE_FLAVOR'] == 'nyaa':
     Torrent = NyaaTorrent
     TorrentFilelist = NyaaTorrentFilelist
-    TorrentInfo = NyaaTorrentInfo
     Statistic = NyaaStatistic
     TorrentTrackers = NyaaTorrentTrackers
     MainCategory = NyaaMainCategory
@@ -895,7 +864,6 @@ if config['SITE_FLAVOR'] == 'nyaa':
 elif config['SITE_FLAVOR'] == 'sukebei':
     Torrent = SukebeiTorrent
     TorrentFilelist = SukebeiTorrentFilelist
-    TorrentInfo = SukebeiTorrentInfo
     Statistic = SukebeiStatistic
     TorrentTrackers = SukebeiTorrentTrackers
     MainCategory = SukebeiMainCategory

nyaa/torrents.py

@@ -118,7 +118,7 @@ def create_default_metadata_base(torrent, trackers=None, webseeds=None):
     return metadata_base
 
 
-def create_bencoded_torrent(torrent, metadata_base=None):
+def create_bencoded_torrent(torrent, bencoded_info, metadata_base=None):
     ''' Creates a bencoded torrent metadata for a given torrent,
         optionally using a given metadata_base dict (note: 'info' key will be
         popped off the dict) '''
@@ -135,7 +135,6 @@ def create_bencoded_torrent(torrent, metadata_base=None):
     prefix = bencode.encode(prefixed_dict)
     suffix = bencode.encode(suffixed_dict)
 
-    bencoded_info = torrent.info.info_dict
     bencoded_torrent = prefix[:-1] + b'4:info' + bencoded_info + suffix[1:]
 
     return bencoded_torrent

nyaa/views/torrents.py

@@ -319,7 +319,7 @@ def download_torrent(torrent_id):
     if torrent.deleted and not (flask.g.user and flask.g.user.is_moderator):
         flask.abort(404)
 
-    torrent_file, torrent_file_size = _get_cached_torrent_file(torrent)
+    torrent_file, torrent_file_size = _make_torrent_file(torrent)
     disposition = 'inline; filename="{0}"; filename*=UTF-8\'\'{0}'.format(
         quote(torrent.torrent_name.encode('utf-8')))
 
@@ -472,18 +472,15 @@ def _create_upload_category_choices():
     return choices
 
 
-def _get_cached_torrent_file(torrent):
-    # Note: obviously temporary
-    cached_torrent = os.path.join(app.config['BASE_DIR'],
-                                  'torrent_cache', str(torrent.id) + '.torrent')
-    if not os.path.exists(cached_torrent):
-        with open(cached_torrent, 'wb') as out_file:
-            metadata_base = torrents.create_default_metadata_base(torrent)
-            # Replace the default comment with url to the torrent page
-            metadata_base['comment'] = flask.url_for('torrents.view',
-                                                     torrent_id=torrent.id,
-                                                     _external=True)
 
-            out_file.write(torrents.create_bencoded_torrent(torrent, metadata_base))
+def _make_torrent_file(torrent):
+    info_hash = torrent.info_hash_as_hex
+    path = os.path.join(app.config['BASE_DIR'], 'info_dicts',
+                        info_hash[0:2], info_hash[2:4], info_hash)
 
-    return open(cached_torrent, 'rb'), os.path.getsize(cached_torrent)
+    with open(path, 'rb') as fp:
+        bencoded_info = fp.read()
+
+    data = torrents.create_bencoded_torrent(torrent, bencoded_info)
+
+    return data, len(data)

torrent_cache/.gitignore

@@ -1 +0,0 @@
-*.torrent

torrents/.gitignore

@@ -0,0 +1,2 @@
+*
+!.gitignore

utils/infodict_mysql2file.py

@@ -0,0 +1,53 @@
+#!/usr/bin/python
+import os
+import sys
+
+import MySQLdb
+import MySQLdb.cursors
+
+if len(sys.argv) < 3 or len(sys.argv) > 4:
+    print("Usage: {0} <prefix(nyaa|sukebei)> <outdir> [offset]".format(sys.argv[0]))
+    sys.exit(1)
+
+ofs = 0
+prefix = sys.argv[1]
+outdir = sys.argv[2]
+if not os.path.exists(outdir):
+    os.makedirs(outdir)
+if len(sys.argv) == 4:
+    ofs = int(sys.argv[3])
+
+
+db = MySQLdb.connect(host='localhost',
+                     user='test',
+                     passwd='test123',
+                     db='nyaav2',
+                     cursorclass=MySQLdb.cursors.SSCursor)
+cur = db.cursor()
+
+cur.execute(
+    """SELECT
+            id,
+            info_hash,
+            info_dict
+        FROM
+            {0}_torrents
+        JOIN {0}_torrents_info ON torrent_id = id
+        LIMIT 18446744073709551610 OFFSET {1}
+    """.format(prefix, ofs))
+
+for row in cur:
+    id = row[0]
+    info_hash = row[1].hex().lower()
+    info_dict = row[2]
+
+    path = os.path.join(outdir, info_hash[0:2], info_hash[2:4])
+    if not os.path.exists(path):
+        os.makedirs(path)
+    path = os.path.join(path, info_hash)
+
+    with open(path, 'wb') as fp:
+        fp.write(info_dict)
+
+    ofs += 1
+    print(ofs)