mirror of
https://gitlab.archlinux.org/archlinux/aurweb.git
synced 2025-02-03 10:43:03 +01:00
dc3fd60715
Instead of using relative imports, add support for installing the config and db Python modules to a proper location using setuptools. Change all git-interface scripts to access those modules from the search path. Signed-off-by: Lukas Fleischer <lfleischer@archlinux.org>
419 lines
16 KiB
Python
Executable file
419 lines
16 KiB
Python
Executable file
#!/usr/bin/python3
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import os
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import pygit2
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import re
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import subprocess
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import sys
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import time
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import srcinfo.parse
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import srcinfo.utils
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import aurweb.config
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import aurweb.db
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notify_cmd = aurweb.config.get('notifications', 'notify-cmd')
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repo_path = aurweb.config.get('serve', 'repo-path')
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repo_regex = aurweb.config.get('serve', 'repo-regex')
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max_blob_size = aurweb.config.getint('update', 'max-blob-size')
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def size_humanize(num):
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for unit in ['B', 'KiB', 'MiB', 'GiB', 'TiB', 'PiB', 'EiB', 'ZiB']:
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if abs(num) < 2048.0:
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if isinstance(num, int):
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return "{}{}".format(num, unit)
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else:
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return "{:.2f}{}".format(num, unit)
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num /= 1024.0
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return "{:.2f}{}".format(num, 'YiB')
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def extract_arch_fields(pkginfo, field):
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values = []
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if field in pkginfo:
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for val in pkginfo[field]:
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values.append({"value": val, "arch": None})
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for arch in ['i686', 'x86_64']:
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if field + '_' + arch in pkginfo:
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for val in pkginfo[field + '_' + arch]:
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values.append({"value": val, "arch": arch})
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return values
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def parse_dep(depstring):
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dep, _, desc = depstring.partition(': ')
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depname = re.sub(r'(<|=|>).*', '', dep)
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depcond = dep[len(depname):]
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if (desc):
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return (depname + ': ' + desc, depcond)
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else:
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return (depname, depcond)
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def create_pkgbase(conn, pkgbase, user):
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cur = conn.execute("SELECT ID FROM Users WHERE Username = ?", [user])
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userid = cur.fetchone()[0]
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now = int(time.time())
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cur = conn.execute("INSERT INTO PackageBases (Name, SubmittedTS, " +
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"ModifiedTS, SubmitterUID, MaintainerUID) VALUES " +
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"(?, ?, ?, ?, ?)", [pkgbase, now, now, userid, userid])
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pkgbase_id = cur.lastrowid
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cur = conn.execute("INSERT INTO PackageNotifications " +
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"(PackageBaseID, UserID) VALUES (?, ?)",
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[pkgbase_id, userid])
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conn.commit()
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return pkgbase_id
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def save_metadata(metadata, conn, user):
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# Obtain package base ID and previous maintainer.
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pkgbase = metadata['pkgbase']
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cur = conn.execute("SELECT ID, MaintainerUID FROM PackageBases "
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"WHERE Name = ?", [pkgbase])
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(pkgbase_id, maintainer_uid) = cur.fetchone()
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was_orphan = not maintainer_uid
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# Obtain the user ID of the new maintainer.
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cur = conn.execute("SELECT ID FROM Users WHERE Username = ?", [user])
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user_id = int(cur.fetchone()[0])
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# Update package base details and delete current packages.
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now = int(time.time())
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conn.execute("UPDATE PackageBases SET ModifiedTS = ?, " +
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"PackagerUID = ?, OutOfDateTS = NULL WHERE ID = ?",
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[now, user_id, pkgbase_id])
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conn.execute("UPDATE PackageBases SET MaintainerUID = ? " +
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"WHERE ID = ? AND MaintainerUID IS NULL",
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[user_id, pkgbase_id])
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for table in ('Sources', 'Depends', 'Relations', 'Licenses', 'Groups'):
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conn.execute("DELETE FROM Package" + table + " WHERE EXISTS (" +
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"SELECT * FROM Packages " +
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"WHERE Packages.PackageBaseID = ? AND " +
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"Package" + table + ".PackageID = Packages.ID)",
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[pkgbase_id])
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conn.execute("DELETE FROM Packages WHERE PackageBaseID = ?", [pkgbase_id])
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for pkgname in srcinfo.utils.get_package_names(metadata):
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pkginfo = srcinfo.utils.get_merged_package(pkgname, metadata)
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if 'epoch' in pkginfo and int(pkginfo['epoch']) > 0:
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ver = '{:d}:{:s}-{:s}'.format(int(pkginfo['epoch']),
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pkginfo['pkgver'],
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pkginfo['pkgrel'])
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else:
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ver = '{:s}-{:s}'.format(pkginfo['pkgver'], pkginfo['pkgrel'])
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for field in ('pkgdesc', 'url'):
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if field not in pkginfo:
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pkginfo[field] = None
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# Create a new package.
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cur = conn.execute("INSERT INTO Packages (PackageBaseID, Name, " +
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"Version, Description, URL) " +
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"VALUES (?, ?, ?, ?, ?)",
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[pkgbase_id, pkginfo['pkgname'], ver,
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pkginfo['pkgdesc'], pkginfo['url']])
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conn.commit()
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pkgid = cur.lastrowid
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# Add package sources.
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for source_info in extract_arch_fields(pkginfo, 'source'):
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conn.execute("INSERT INTO PackageSources (PackageID, Source, " +
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"SourceArch) VALUES (?, ?, ?)",
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[pkgid, source_info['value'], source_info['arch']])
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# Add package dependencies.
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for deptype in ('depends', 'makedepends',
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'checkdepends', 'optdepends'):
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cur = conn.execute("SELECT ID FROM DependencyTypes WHERE Name = ?",
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[deptype])
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deptypeid = cur.fetchone()[0]
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for dep_info in extract_arch_fields(pkginfo, deptype):
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depname, depcond = parse_dep(dep_info['value'])
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deparch = dep_info['arch']
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conn.execute("INSERT INTO PackageDepends (PackageID, " +
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"DepTypeID, DepName, DepCondition, DepArch) " +
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"VALUES (?, ?, ?, ?, ?)",
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[pkgid, deptypeid, depname, depcond, deparch])
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# Add package relations (conflicts, provides, replaces).
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for reltype in ('conflicts', 'provides', 'replaces'):
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cur = conn.execute("SELECT ID FROM RelationTypes WHERE Name = ?",
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[reltype])
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reltypeid = cur.fetchone()[0]
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for rel_info in extract_arch_fields(pkginfo, reltype):
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relname, relcond = parse_dep(rel_info['value'])
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relarch = rel_info['arch']
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conn.execute("INSERT INTO PackageRelations (PackageID, " +
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"RelTypeID, RelName, RelCondition, RelArch) " +
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"VALUES (?, ?, ?, ?, ?)",
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[pkgid, reltypeid, relname, relcond, relarch])
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# Add package licenses.
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if 'license' in pkginfo:
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for license in pkginfo['license']:
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cur = conn.execute("SELECT ID FROM Licenses WHERE Name = ?",
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[license])
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row = cur.fetchone()
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if row:
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licenseid = row[0]
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else:
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cur = conn.execute("INSERT INTO Licenses (Name) " +
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"VALUES (?)", [license])
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conn.commit()
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licenseid = cur.lastrowid
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conn.execute("INSERT INTO PackageLicenses (PackageID, " +
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"LicenseID) VALUES (?, ?)",
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[pkgid, licenseid])
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# Add package groups.
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if 'groups' in pkginfo:
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for group in pkginfo['groups']:
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cur = conn.execute("SELECT ID FROM Groups WHERE Name = ?",
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[group])
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row = cur.fetchone()
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if row:
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groupid = row[0]
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else:
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cur = conn.execute("INSERT INTO Groups (Name) VALUES (?)",
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[group])
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conn.commit()
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groupid = cur.lastrowid
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conn.execute("INSERT INTO PackageGroups (PackageID, "
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"GroupID) VALUES (?, ?)", [pkgid, groupid])
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# Add user to notification list on adoption.
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if was_orphan:
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cur = conn.execute("SELECT COUNT(*) FROM PackageNotifications WHERE " +
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"PackageBaseID = ? AND UserID = ?",
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[pkgbase_id, user_id])
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if cur.fetchone()[0] == 0:
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conn.execute("INSERT INTO PackageNotifications " +
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"(PackageBaseID, UserID) VALUES (?, ?)",
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[pkgbase_id, user_id])
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conn.commit()
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def update_notify(conn, user, pkgbase_id):
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# Obtain the user ID of the new maintainer.
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cur = conn.execute("SELECT ID FROM Users WHERE Username = ?", [user])
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user_id = int(cur.fetchone()[0])
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# Execute the notification script.
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subprocess.Popen((notify_cmd, 'update', str(user_id), str(pkgbase_id)))
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def die(msg):
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sys.stderr.write("error: {:s}\n".format(msg))
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exit(1)
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def warn(msg):
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sys.stderr.write("warning: {:s}\n".format(msg))
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def die_commit(msg, commit):
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sys.stderr.write("error: The following error " +
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"occurred when parsing commit\n")
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sys.stderr.write("error: {:s}:\n".format(commit))
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sys.stderr.write("error: {:s}\n".format(msg))
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exit(1)
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def main():
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repo = pygit2.Repository(repo_path)
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user = os.environ.get("AUR_USER")
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pkgbase = os.environ.get("AUR_PKGBASE")
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privileged = (os.environ.get("AUR_PRIVILEGED", '0') == '1')
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warn_or_die = warn if privileged else die
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if len(sys.argv) == 2 and sys.argv[1] == "restore":
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if 'refs/heads/' + pkgbase not in repo.listall_references():
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die('{:s}: repository not found: {:s}'.format(sys.argv[1],
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pkgbase))
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refname = "refs/heads/master"
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branchref = 'refs/heads/' + pkgbase
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sha1_old = sha1_new = repo.lookup_reference(branchref).target
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elif len(sys.argv) == 4:
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refname, sha1_old, sha1_new = sys.argv[1:4]
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else:
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die("invalid arguments")
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if refname != "refs/heads/master":
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die("pushing to a branch other than master is restricted")
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conn = aurweb.db.Connection()
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# Detect and deny non-fast-forwards.
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if sha1_old != "0" * 40 and not privileged:
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walker = repo.walk(sha1_old, pygit2.GIT_SORT_TOPOLOGICAL)
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walker.hide(sha1_new)
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if next(walker, None) is not None:
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die("denying non-fast-forward (you should pull first)")
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# Prepare the walker that validates new commits.
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walker = repo.walk(sha1_new, pygit2.GIT_SORT_TOPOLOGICAL)
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if sha1_old != "0" * 40:
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walker.hide(sha1_old)
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# Validate all new commits.
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for commit in walker:
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for fname in ('.SRCINFO', 'PKGBUILD'):
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if fname not in commit.tree:
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die_commit("missing {:s}".format(fname), str(commit.id))
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for treeobj in commit.tree:
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blob = repo[treeobj.id]
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if isinstance(blob, pygit2.Tree):
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die_commit("the repository must not contain subdirectories",
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str(commit.id))
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if not isinstance(blob, pygit2.Blob):
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die_commit("not a blob object: {:s}".format(treeobj),
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str(commit.id))
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if blob.size > max_blob_size:
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die_commit("maximum blob size ({:s}) exceeded".format(
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size_humanize(max_blob_size)), str(commit.id))
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metadata_raw = repo[commit.tree['.SRCINFO'].id].data.decode()
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(metadata, errors) = srcinfo.parse.parse_srcinfo(metadata_raw)
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if errors:
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sys.stderr.write("error: The following errors occurred "
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"when parsing .SRCINFO in commit\n")
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sys.stderr.write("error: {:s}:\n".format(str(commit.id)))
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for error in errors:
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for err in error['error']:
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sys.stderr.write("error: line {:d}: {:s}\n".format(
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error['line'], err))
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exit(1)
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metadata_pkgbase = metadata['pkgbase']
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if not re.match(repo_regex, metadata_pkgbase):
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die_commit('invalid pkgbase: {:s}'.format(metadata_pkgbase),
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str(commit.id))
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for pkgname in set(metadata['packages'].keys()):
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pkginfo = srcinfo.utils.get_merged_package(pkgname, metadata)
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for field in ('pkgver', 'pkgrel', 'pkgname'):
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if field not in pkginfo:
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die_commit('missing mandatory field: {:s}'.format(field),
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str(commit.id))
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if 'epoch' in pkginfo and not pkginfo['epoch'].isdigit():
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die_commit('invalid epoch: {:s}'.format(pkginfo['epoch']),
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str(commit.id))
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if not re.match(r'[a-z0-9][a-z0-9\.+_-]*$', pkginfo['pkgname']):
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die_commit('invalid package name: {:s}'.format(
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pkginfo['pkgname']), str(commit.id))
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for field in ('pkgname', 'pkgdesc', 'url'):
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if field in pkginfo and len(pkginfo[field]) > 255:
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die_commit('{:s} field too long: {:s}'.format(field,
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pkginfo[field]), str(commit.id))
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for field in ('install', 'changelog'):
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if field in pkginfo and not pkginfo[field] in commit.tree:
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die_commit('missing {:s} file: {:s}'.format(field,
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pkginfo[field]), str(commit.id))
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for field in extract_arch_fields(pkginfo, 'source'):
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fname = field['value']
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if "://" in fname or "lp:" in fname:
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continue
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if fname not in commit.tree:
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die_commit('missing source file: {:s}'.format(fname),
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str(commit.id))
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# Display a warning if .SRCINFO is unchanged.
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if sha1_old not in ("0000000000000000000000000000000000000000", sha1_new):
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srcinfo_id_old = repo[sha1_old].tree['.SRCINFO'].id
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srcinfo_id_new = repo[sha1_new].tree['.SRCINFO'].id
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if srcinfo_id_old == srcinfo_id_new:
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warn(".SRCINFO unchanged. "
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"The package database will not be updated!")
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# Read .SRCINFO from the HEAD commit.
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metadata_raw = repo[repo[sha1_new].tree['.SRCINFO'].id].data.decode()
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(metadata, errors) = srcinfo.parse.parse_srcinfo(metadata_raw)
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# Ensure that the package base name matches the repository name.
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metadata_pkgbase = metadata['pkgbase']
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if metadata_pkgbase != pkgbase:
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die('invalid pkgbase: {:s}, expected {:s}'.format(metadata_pkgbase,
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pkgbase))
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# Ensure that packages are neither blacklisted nor overwritten.
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pkgbase = metadata['pkgbase']
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cur = conn.execute("SELECT ID FROM PackageBases WHERE Name = ?", [pkgbase])
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row = cur.fetchone()
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pkgbase_id = row[0] if row else 0
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cur = conn.execute("SELECT Name FROM PackageBlacklist")
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blacklist = [row[0] for row in cur.fetchall()]
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cur = conn.execute("SELECT Name, Repo FROM OfficialProviders")
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providers = dict(cur.fetchall())
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for pkgname in srcinfo.utils.get_package_names(metadata):
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pkginfo = srcinfo.utils.get_merged_package(pkgname, metadata)
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pkgname = pkginfo['pkgname']
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if pkgname in blacklist:
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warn_or_die('package is blacklisted: {:s}'.format(pkgname))
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if pkgname in providers:
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warn_or_die('package already provided by [{:s}]: {:s}'.format(
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providers[pkgname], pkgname))
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cur = conn.execute("SELECT COUNT(*) FROM Packages WHERE Name = ? " +
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"AND PackageBaseID <> ?", [pkgname, pkgbase_id])
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if cur.fetchone()[0] > 0:
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die('cannot overwrite package: {:s}'.format(pkgname))
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# Create a new package base if it does not exist yet.
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if pkgbase_id == 0:
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pkgbase_id = create_pkgbase(conn, pkgbase, user)
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# Store package base details in the database.
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save_metadata(metadata, conn, user)
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# Create (or update) a branch with the name of the package base for better
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# accessibility.
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branchref = 'refs/heads/' + pkgbase
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repo.create_reference(branchref, sha1_new, True)
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# Work around a Git bug: The HEAD ref is not updated when using
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# gitnamespaces. This can be removed once the bug fix is included in Git
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# mainline. See
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# http://git.661346.n2.nabble.com/PATCH-receive-pack-Create-a-HEAD-ref-for-ref-namespace-td7632149.html
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# for details.
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headref = 'refs/namespaces/' + pkgbase + '/HEAD'
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repo.create_reference(headref, sha1_new, True)
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# Send package update notifications.
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update_notify(conn, user, pkgbase_id)
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# Close the database.
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cur.close()
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conn.close()
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if __name__ == '__main__':
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main()
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