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bitbake: bitbake: hashserv: Add hash equivalence reference server
Implements a reference implementation of the hash equivalence server. This server has minimal dependencies (and no dependencies outside of the standard Python library), and implements the minimum required to be a conforming hash equivalence server. [YOCTO #13030] (Bitbake rev: 1bb2ad0b44b94ee04870bf3f7dac4e663bed6e4d) Signed-off-by: Joshua Watt <JPEWhacker@gmail.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Joshua Watt
committed by
Richard Purdie
Richard Purdie
parent
cea00c1283
commit
df85dd5485
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# Copyright (C) 2018 Garmin Ltd.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License version 2 as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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from http.server import BaseHTTPRequestHandler, HTTPServer
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import contextlib
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import urllib.parse
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import sqlite3
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import json
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import traceback
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import logging
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from datetime import datetime
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logger = logging.getLogger('hashserv')
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class HashEquivalenceServer(BaseHTTPRequestHandler):
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def log_message(self, f, *args):
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logger.debug(f, *args)
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def do_GET(self):
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try:
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p = urllib.parse.urlparse(self.path)
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if p.path != self.prefix + '/v1/equivalent':
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self.send_error(404)
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return
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query = urllib.parse.parse_qs(p.query, strict_parsing=True)
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method = query['method'][0]
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taskhash = query['taskhash'][0]
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d = None
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with contextlib.closing(self.db.cursor()) as cursor:
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cursor.execute('SELECT taskhash, method, unihash FROM tasks_v1 WHERE method=:method AND taskhash=:taskhash ORDER BY created ASC LIMIT 1',
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{'method': method, 'taskhash': taskhash})
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row = cursor.fetchone()
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if row is not None:
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logger.debug('Found equivalent task %s', row['taskhash'])
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d = {k: row[k] for k in ('taskhash', 'method', 'unihash')}
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self.send_response(200)
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self.send_header('Content-Type', 'application/json; charset=utf-8')
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self.end_headers()
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self.wfile.write(json.dumps(d).encode('utf-8'))
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except:
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logger.exception('Error in GET')
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self.send_error(400, explain=traceback.format_exc())
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return
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def do_POST(self):
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try:
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p = urllib.parse.urlparse(self.path)
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if p.path != self.prefix + '/v1/equivalent':
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self.send_error(404)
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return
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length = int(self.headers['content-length'])
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data = json.loads(self.rfile.read(length).decode('utf-8'))
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with contextlib.closing(self.db.cursor()) as cursor:
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cursor.execute('''
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SELECT taskhash, method, unihash FROM tasks_v1 WHERE method=:method AND outhash=:outhash
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ORDER BY CASE WHEN taskhash=:taskhash THEN 1 ELSE 2 END,
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created ASC
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LIMIT 1
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''', {k: data[k] for k in ('method', 'outhash', 'taskhash')})
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row = cursor.fetchone()
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if row is None or row['taskhash'] != data['taskhash']:
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unihash = data['unihash']
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if row is not None:
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unihash = row['unihash']
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insert_data = {
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'method': data['method'],
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'outhash': data['outhash'],
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'taskhash': data['taskhash'],
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'unihash': unihash,
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'created': datetime.now()
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}
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for k in ('owner', 'PN', 'PV', 'PR', 'task', 'outhash_siginfo'):
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if k in data:
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insert_data[k] = data[k]
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cursor.execute('''INSERT INTO tasks_v1 (%s) VALUES (%s)''' % (
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', '.join(sorted(insert_data.keys())),
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', '.join(':' + k for k in sorted(insert_data.keys()))),
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insert_data)
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logger.info('Adding taskhash %s with unihash %s', data['taskhash'], unihash)
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cursor.execute('SELECT taskhash, method, unihash FROM tasks_v1 WHERE id=:id', {'id': cursor.lastrowid})
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row = cursor.fetchone()
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self.db.commit()
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d = {k: row[k] for k in ('taskhash', 'method', 'unihash')}
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self.send_response(200)
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self.send_header('Content-Type', 'application/json; charset=utf-8')
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self.end_headers()
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self.wfile.write(json.dumps(d).encode('utf-8'))
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except:
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logger.exception('Error in POST')
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self.send_error(400, explain=traceback.format_exc())
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return
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def create_server(addr, db, prefix=''):
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class Handler(HashEquivalenceServer):
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pass
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Handler.prefix = prefix
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Handler.db = db
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db.row_factory = sqlite3.Row
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with contextlib.closing(db.cursor()) as cursor:
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cursor.execute('''
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CREATE TABLE IF NOT EXISTS tasks_v1 (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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method TEXT NOT NULL,
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outhash TEXT NOT NULL,
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taskhash TEXT NOT NULL,
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unihash TEXT NOT NULL,
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created DATETIME,
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-- Optional fields
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owner TEXT,
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PN TEXT,
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PV TEXT,
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PR TEXT,
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task TEXT,
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outhash_siginfo TEXT
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)
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''')
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logger.info('Starting server on %s', addr)
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return HTTPServer(addr, Handler)
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