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app.py
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app.py
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import atexit
import os
import pathlib
import sqlite3
import subprocess
import configparser
from math import ceil
from flask import Flask, render_template, redirect, url_for, g, request, abort, send_file
app = Flask(__name__)
application = app
config = configparser.ConfigParser()
config.read("config.ini")
def get_branches():
return config.get('repository', 'branches').split(',')
def get_arches():
return config.get('repository', 'arches').split(',')
def get_repos():
return config.get('repository', 'repos').split(',')
def get_apk():
return config.get('settings', 'apk', fallback = 'apk')
def get_apkindex_cache():
return pathlib.Path(config.get('settings', 'apkindex-cache', fallback = 'apkindex_cache'))
def get_settings():
return {
"distro_name": config.get('branding', 'name'),
"logo": config.get('branding', 'logo'),
"favicon": config.get('branding', 'favicon'),
"flagging": config.get('settings', 'flagging') == 'yes',
"show_branch": config.get('settings', 'branch') != 'no',
"external_website": config.get('external', 'website'),
}
def open_databases():
db = {}
db_dir = config.get('database', 'path')
for branch in config.get('repository', 'branches').split(','):
db_file = os.path.join(db_dir, f"cports-{branch}.db")
db[branch] = sqlite3.connect(db_file)
cur = db[branch].cursor()
cur.execute("PRAGMA synchronous = NORMAL")
cur.execute("PRAGMA cache_size = 100000") # sized in pages
cur.execute("PRAGMA temp_store = memory")
cur.execute("PRAGMA busy_timeout = 3000") # milliseconds
g._db = db
def get_db():
db = getattr(g, '_db', None)
if db is None:
open_databases()
db = getattr(g, '_db', None)
return db
def get_maintainers(branch):
db = get_db()
cur = db[branch].cursor()
cur.execute("SELECT name FROM maintainer")
result = cur.fetchall()
return map(lambda x: x[0], result)
def get_filter(name, arch, repo, maintainer=None, origin=None, file=None, path=None, provides=False):
filter_fields = {
"packages.name": name,
"packages.arch": arch,
"packages.repo": repo,
"maintainer.name": maintainer,
"files.file": file,
"files.path": path
}
glob_fields = ["packages.name", "files.file", "files.path"]
where = []
args = []
for key in filter_fields:
if filter_fields[key] == "" or filter_fields[key] is None:
continue
if key == 'packages.name' and provides:
where.append("(provides.name GLOB ? OR packages.name GLOB ?)")
args.append(str(filter_fields[key]))
elif key in glob_fields:
where.append("{} GLOB ?".format(key))
else:
where.append("{} = ?".format(key))
args.append(str(filter_fields[key]))
if origin is not None and origin:
where.append("packages.origin = packages.name")
if len(where) > 0:
where = "WHERE " + " AND ".join(where)
else:
where = ""
return where, args
def get_num_packages(branch, name=None, arch=None, repo=None, maintainer=None, origin=None):
db = get_db()
where, args = get_filter(name, arch, repo, maintainer, origin, provides=True)
sql = """
SELECT DISTINCT count(*) as qty
FROM packages
LEFT JOIN maintainer ON packages.maintainer = maintainer.id
LEFT JOIN provides ON provides.pid = packages.id
{}
""".format(where)
cur = db[branch].cursor()
cur.execute(sql, args)
result = cur.fetchone()
return result[0]
def get_packages(branch, offset, name=None, arch=None, repo=None, maintainer=None, origin=None):
db = get_db()
where, args = get_filter(name, arch, repo, maintainer, origin, provides=True)
sql = """
SELECT DISTINCT packages.*, datetime(packages.build_time, 'unixepoch') as build_time,
maintainer.name as mname, maintainer.email as memail,
datetime(flagged.created, 'unixepoch') as flagged
FROM packages
LEFT JOIN maintainer ON packages.maintainer = maintainer.id
LEFT JOIN flagged ON packages.origin = flagged.origin
AND packages.version = flagged.version
AND packages.repo = flagged.repo
LEFT JOIN provides ON provides.pid = packages.id
{}
ORDER BY packages.build_time DESC, packages.name ASC
LIMIT 50 OFFSET ?
""".format(where)
cur = db[branch].cursor()
args.append(offset)
cur.execute(sql, args)
fields = [i[0] for i in cur.description]
result = [dict(zip(fields, row)) for row in cur.fetchall()]
return result
def get_package(branch, repo, arch, name):
db = get_db()
sql = """
SELECT packages.*, datetime(packages.build_time, 'unixepoch') as build_time,
maintainer.name as mname, maintainer.email as memail,
datetime(flagged.created, 'unixepoch') as flagged
FROM packages
LEFT JOIN maintainer ON packages.maintainer = maintainer.id
LEFT JOIN flagged ON packages.origin = flagged.origin
AND packages.version = flagged.version AND packages.repo = flagged.repo
WHERE packages.repo = ?
AND packages.arch = ?
AND packages.name = ?
"""
cur = db[branch].cursor()
cur.execute(sql, [repo, arch, name])
fields = [i[0] for i in cur.description]
alldata = cur.fetchall()
if len(alldata) == 0:
return None
result = [dict(zip(fields, row)) for row in alldata]
return result[0]
def get_num_contents(branch, name=None, arch=None, repo=None, file=None, path=None):
db = get_db()
where, args = get_filter(name, arch, repo, file=file, path=path)
sql = """
SELECT count(packages.id)
FROM packages
JOIN files ON files.pid = packages.id
{}
""".format(where)
cur = db[branch].cursor()
cur.execute(sql, args)
result = cur.fetchone()
return result[0]
def get_contents(branch, offset, file=None, path=None, name=None, arch=None, repo=None):
db = get_db()
where, args = get_filter(name, arch, repo, maintainer=None, origin=None, file=file, path=path)
sql = """
SELECT packages.repo, packages.arch, packages.name, files.*
FROM packages
JOIN files ON files.pid = packages.id
{}
ORDER BY files.path, files.file
LIMIT 50 OFFSET ?
""".format(where)
cur = db[branch].cursor()
args.append(offset)
cur.execute(sql, args)
fields = [i[0] for i in cur.description]
result = [dict(zip(fields, row)) for row in cur.fetchall()]
return result
def get_depends(branch, package_id, arch):
db = get_db()
sql_provides = """
SELECT de.name, pa.repo, pa.arch, pa.name, pa.provider_priority, de.name as depname, de.version as depver
FROM depends de
JOIN provides pr ON de.name = pr.name
LEFT JOIN packages pa ON pr.pid = pa.id
WHERE de.pid = ? AND pa.arch = ?
"""
sql_direct = """
SELECT de.name, dp.repo, dp.arch, dp.name, dp.provider_priority, de.name as depname
FROM depends de
JOIN packages dp ON dp.name = de.name
WHERE de.pid = ? AND dp.arch = ?
"""
sql_names = """
SELECT de.name as depname
FROM depends de
WHERE de.pid = ?
"""
cur = db[branch].cursor()
apk_bin = get_apk()
cur.execute(sql_provides, [package_id, arch])
fields = [i[0] for i in cur.description]
through_provides = [dict(zip(fields, row)) for row in cur.fetchall()]
provides = {}
for p in through_provides:
depn = p['depname']
if depn in provides:
pp = provides[depn]
cmp = subprocess.run([apk_bin, 'version', '-t', str(pp['depver']), str(p['depver'])], capture_output = True)
outs = cmp.stdout.strip().decode()
if outs == "<":
provides[depn] = p
elif outs == "=":
oprio = -1
nprio = -1
if pp['provider_priority'] is not None:
oprio = pp['provider_priority']
if p['provider_priority'] is not None:
nprio = p['provider_priority']
if int(nprio) > int(oprio):
provides[depn] = p
else:
provides[depn] = p
cur.execute(sql_direct, [package_id, arch])
fields = [i[0] for i in cur.description]
direct_dependency = [dict(zip(fields, row)) for row in cur.fetchall()]
direct = {}
for p in direct_dependency:
direct[p['depname']] = p
cur.execute(sql_names, [package_id])
fields = [i[0] for i in cur.description]
all_deps = [dict(zip(fields, row)) for row in cur.fetchall()]
result = []
for dep in all_deps:
name = dep['depname']
dep = None
if name in direct:
dep = direct[name]
if name in provides and not dep:
dep = provides[name]
if dep is None:
result.append({'name': name})
else:
result.append({'name': name, 'target': dep['name'], 'repo': dep['repo'], 'arch': dep['arch']})
return result
def get_required_by(branch, package_id, pkgname, arch):
db = get_db()
# TODO: account for version constraints
sql = """
SELECT DISTINCT packages.* FROM packages
LEFT JOIN depends ON depends.pid = packages.id
WHERE packages.arch = ? AND (depends.name = ? OR depends.name IN (
SELECT name FROM provides WHERE provides.pid = ?
))
ORDER BY packages.name
"""
cur = db[branch].cursor()
cur.execute(sql, [arch, pkgname, package_id])
fields = [i[0] for i in cur.description]
result = [dict(zip(fields, row)) for row in cur.fetchall()]
return result
def get_subpackages(branch, package_id, arch):
db = get_db()
sql = """
SELECT DISTINCT packages.* FROM packages
WHERE arch = ? AND origin = ?
ORDER BY packages.name
"""
cur = db[branch].cursor()
cur.execute(sql, [arch, package_id])
fields = [i[0] for i in cur.description]
result = [dict(zip(fields, row)) for row in cur.fetchall()]
return result
def get_install_if(branch, package_id):
db = get_db()
sql = """
SELECT name, operator, version
FROM install_if
WHERE pid = ?
"""
cur = db[branch].cursor()
cur.execute(sql, [package_id])
fields = [i[0] for i in cur.description]
result = [dict(zip(fields, row)) for row in cur.fetchall()]
return result
def get_provides(branch, package_id, pkgname):
db = get_db()
sql = """
SELECT name, operator, version
FROM provides
WHERE pid = ?
AND name != ?
"""
cur = db[branch].cursor()
cur.execute(sql, [package_id, pkgname])
fields = [i[0] for i in cur.description]
result = [dict(zip(fields, row)) for row in cur.fetchall()]
return result
@app.route('/')
def index():
return redirect(url_for("packages"))
@app.route('/packages')
def packages():
name = request.args.get('name')
branch = request.args.get('branch')
repo = request.args.get('repo')
arch = request.args.get('arch')
maintainer = request.args.get('maintainer')
origin = request.args.get('origin')
page = request.args.get('page')
form = {
"name": name if name is not None else "",
"branch": branch if branch is not None else config.get('repository', 'default-branch'),
"repo": repo if repo is not None else "",
"arch": arch if arch is not None else "",
"maintainer": maintainer if maintainer is not None else "",
"origin": origin if origin is not None else "",
"page": int(page) if page is not None else 1
}
branches = get_branches()
arches = get_arches()
repos = get_repos()
maintainers = get_maintainers(branch=form['branch'])
offset = (form['page'] - 1) * 50
packages = get_packages(branch=form['branch'], offset=offset, name=name, arch=arch, repo=repo,
maintainer=maintainer,
origin=origin)
num_packages = get_num_packages(branch=form['branch'], name=name, arch=arch, repo=repo, maintainer=maintainer,
origin=origin)
pages = ceil(num_packages / 50)
pag_start = form['page'] - 4
pag_stop = form['page'] + 3
if pag_start < 0:
pag_stop += abs(pag_start)
pag_start = 0
pag_stop = min(pag_stop, pages)
return render_template("index.html",
**get_settings(),
title="Package index",
form=form,
branches=branches,
arches=arches,
repos=repos,
maintainers=maintainers,
packages=packages,
pag_start=pag_start,
pag_stop=pag_stop,
pages=pages)
@app.route('/contents')
def contents():
file = request.args.get('file')
path = request.args.get('path')
name = request.args.get('name')
branch = request.args.get('branch')
repo = request.args.get('repo')
arch = request.args.get('arch')
page = request.args.get('page')
form = {
"file": file if file is not None else "",
"path": path if path is not None else "",
"name": name if name is not None else "",
"branch": branch if branch is not None else config.get('repository', 'default-branch'),
"repo": repo if repo is not None else "",
"arch": arch if arch is not None else "",
"page": int(page) if page is not None else 1
}
branches = get_branches()
arches = get_arches()
repos = get_repos()
offset = (form['page'] - 1) * 50
if form['name'] == '' and form['file'] == '' and form['path'] == '':
contents = []
num_contents = 0
else:
contents = get_contents(branch=form['branch'], offset=offset, file=file, path=path, name=name, arch=arch,
repo=form['repo'])
num_contents = get_num_contents(branch=form['branch'], file=file, path=path, name=name, arch=arch, repo=repo)
pages = ceil(num_contents / 50)
pag_start = form['page'] - 4
pag_stop = form['page'] + 3
if pag_start < 0:
pag_stop += abs(pag_start)
pag_start = 0
pag_stop = min(pag_stop, pages)
return render_template("contents.html",
**get_settings(),
title="Package contents",
form=form,
branches=branches,
arches=arches,
repos=repos,
contents=contents,
pag_start=pag_start,
pag_stop=pag_stop,
pages=pages)
@app.route('/package/<branch>/<path:repo>/<arch>/<name>')
def package(branch, repo, arch, name):
package = get_package(branch, repo, arch, name)
if package is None:
return abort(404)
git_commit = package['commit'].replace('-dirty', '')
# for urls we only care about the first part
rpart = repo.split('/')[0]
git_url = config.get('external', 'git-commit').format(commit=git_commit, branch=branch, repo=rpart, arch=arch,
name=name, version=package['version'],
origin=package['origin'])
repo_url = config.get('external', 'git-repo').format(commit=git_commit, branch=branch, repo=rpart, arch=arch,
name=name, version=package['version'],
origin=package['origin'])
build_url = config.get('external', 'build-log').format(commit=git_commit, branch=branch, repo=rpart, arch=arch,
name=name, version=package['version'],
buildbot_version=package['version'].replace('.', '_'),
origin=package['origin'])
depends = get_depends(branch, package['id'], arch)
required_by = get_required_by(branch, package['id'], package['name'], arch)
subpackages = get_subpackages(branch, package['origin'], arch)
install_if = get_install_if(branch, package['id'])
provides = get_provides(branch, package['id'], package['name'])
return render_template("package.html",
**get_settings(),
title=name,
branch=branch,
git_url=git_url,
repo_url=repo_url,
build_log_url=build_url,
num_depends=len(depends),
depends=depends,
num_required_by=len(required_by),
required_by=required_by,
num_subpackages=len(subpackages),
subpackages=subpackages,
num_install_if=len(install_if),
install_if=install_if,
num_provides=len(provides),
provides=provides,
pkg=package)
@app.route('/apkindex/<branch>/<path:repo>/<arch>')
def apkindex(branch, repo, arch):
db = get_db()
repos = get_repos()
arches = get_arches()
if repo not in repos or arch not in arches:
return abort(404)
icache = get_apkindex_cache() / f"apkindex_{repo.replace('/', '_')}_{arch}.txt"
if icache.is_file():
# exists, send it as is; it will be deleted on next repo update
return send_file(icache, mimetype="text/plain")
sql = """
SELECT DISTINCT packages.* FROM packages
WHERE packages.repo = ?
AND packages.arch = ?
ORDER BY packages.name ASC
"""
cur = db[branch].cursor()
cur.execute(sql, [repo, arch])
fields = [i[0] for i in cur.description]
mappings = {
"name": "P",
"origin": "o",
"version": "V",
"arch": "A",
"description": "T",
"url": "U",
"license": "L",
"build_time": "t",
}
icache.parent.mkdir(parents=True, exist_ok=True)
with open(icache, "w") as outf:
for row in cur.fetchall():
for i in range(len(fields)):
idxn = mappings.get(fields[i], None)
if idxn is None:
continue
outf.write(f"{idxn}:{str(row[i]).strip()}\n")
outf.write("\n")
return send_file(icache, mimetype="text/plain")
def do_exit():
print("running exit commands and exiting...")
# and a second time, just to run it only once..
try:
# this is only available inside uwsgi context
import uwsgi
# they start from 1
do_once = uwsgi.worker_id() == 1
except ImportError:
do_once = True
if do_once:
with app.app_context():
db = get_db()
for branch in get_branches():
cur = db[branch].cursor()
cur.execute("PRAGMA optimize")
try:
# this is only available inside uwsgi context
import uwsgi
uwsgi.atexit = do_exit
except ImportError:
pass
if __name__ == '__main__':
atexit.register(do_exit)
app.run()