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-rw-r--r--src/blogc-github-lambda/lambda_function.py.in257
1 files changed, 0 insertions, 257 deletions
diff --git a/src/blogc-github-lambda/lambda_function.py.in b/src/blogc-github-lambda/lambda_function.py.in
deleted file mode 100644
index 08b2e2b..0000000
--- a/src/blogc-github-lambda/lambda_function.py.in
+++ /dev/null
@@ -1,257 +0,0 @@
-# coding: utf-8
-#
-# blogc: A blog compiler.
-# Copyright (C) 2014-2018 Rafael G. Martins <rafael@rafaelmartins.eng.br>
-#
-# This program can be distributed under the terms of the BSD License.
-# See the license for details.
-#
-
-from __future__ import print_function
-
-from contextlib import closing
-from io import BytesIO
-
-import base64
-import boto3
-import hmac
-import hashlib
-import json
-import mimetypes
-import os
-import shutil
-import subprocess
-import tarfile
-import traceback
-import urllib.request
-
-BLOGC_VERSION = '@PACKAGE_VERSION@'
-
-cwd = os.path.dirname(os.path.abspath(__file__))
-os.environ['PATH'] = '%s:%s' % (cwd, os.environ.get('PATH', ''))
-
-s3 = boto3.resource('s3')
-
-GITHUB_AUTH = os.environ.get('GITHUB_AUTH')
-GITHUB_SECRET = os.environ.get('GITHUB_SECRET')
-
-if os.environ.get("ENABLE_KMS"):
- kms = boto3.client('kms')
-
- if GITHUB_AUTH is not None:
- GITHUB_AUTH = kms.decrypt(
- CiphertextBlob=base64.b64decode(GITHUB_AUTH))['Plaintext']
-
- if GITHUB_SECRET is not None:
- GITHUB_SECRET = kms.decrypt(
- CiphertextBlob=base64.b64decode(GITHUB_SECRET))['Plaintext']
-else:
- GITHUB_AUTH = GITHUB_AUTH.encode('utf-8')
- GITHUB_SECRET = GITHUB_SECRET.encode('utf-8')
-
-
-def get_tarball(repo_name):
- tarball_url = 'https://api.github.com/repos/%s/tarball/master' % repo_name
- request = urllib.request.Request(tarball_url)
-
- if GITHUB_AUTH is not None:
- auth = base64.b64encode(GITHUB_AUTH)
- request.add_header("Authorization", "Basic %s" % auth.decode('utf-8'))
-
- with closing(urllib.request.urlopen(request)) as fp:
- tarball = fp.read()
-
- rootdir = None
- with closing(BytesIO(tarball)) as fp:
- with tarfile.open(fileobj=fp, mode='r:gz') as tar:
- for f in tar.getnames():
- if '/' not in f:
- rootdir = f
- break
- if rootdir is None:
- raise RuntimeError('Failed to find a directory in tarball')
- rootdir = '/tmp/%s' % rootdir
-
- if os.path.isdir(rootdir):
- shutil.rmtree(rootdir)
-
- tar.extractall('/tmp/')
-
- return rootdir
-
-
-def translate_filename(filename):
- f = filename.split('/')
- if len(f) == 0:
- return filename
- basename = f[-1]
-
- # replace any index.$EXT file with index.html, because s3 only allows
- # users to declare one directory index file name.
- p = basename.split('.')
- if len(p) == 2 and p[0] == 'index':
- f[-1] = 'index.html'
- f = '/'.join(f)
- if not os.path.exists(f):
- return f
-
- return filename
-
-
-def sync_s3(src, dest, settings_file):
- settings = {}
- if os.path.exists(settings_file):
- with open(settings_file, 'r') as fp:
- settings = json.load(fp)
-
- content_types = settings.get('content-type', {})
- dest = settings.get('bucket', dest)
-
- bucket = s3.Bucket(dest)
-
- remote_files = {}
- for obj in bucket.objects.all():
- if not obj.key.endswith('/'):
- remote_files[obj.key] = obj
-
- local_files = {}
- for root, dirs, files in os.walk(src):
- real_root = root[len(src):].lstrip('/')
- for filename in files:
- real_filename = os.path.join(real_root, filename)
- data = {'Key': real_filename}
-
- mime = content_types.get(real_filename,
- mimetypes.guess_type(real_filename)[0])
- if mime is not None:
- data['ContentType'] = mime
-
- with open(os.path.join(src, real_filename), 'rb') as fp:
- data['Body'] = fp.read()
-
- # always push the original file to its place
- local_files[real_filename] = data
-
- # if we need a copy on s3 for index or something, push it too
- translated_filename = translate_filename(real_filename)
- if translated_filename != real_filename:
- translated_data = data.copy()
- translated_data['Key'] = translated_filename
- local_files[translated_filename] = translated_data
-
- to_upload = []
- for filename in local_files:
- if filename not in remote_files:
- to_upload.append(local_files[filename])
-
- to_delete = []
- for filename in remote_files:
- if filename in local_files:
- l = hashlib.sha1(local_files[filename]['Body'])
-
- with closing(remote_files[filename].get()['Body']) as fp:
- r = hashlib.sha1(fp.read())
-
- if l.hexdigest() != r.hexdigest():
- to_upload.append(local_files[filename])
- else:
- to_delete.append(filename)
-
- for data in to_upload:
- print('Uploading file: %s; content-type: "%s"' % (
- data['Key'],
- data.get('ContentType'),
- ))
- bucket.put_object(**data)
-
- for filename in to_delete:
- print('Deleting file:', filename)
- remote_files[filename].delete()
-
-
-def blogc_handler(message):
- print('blogc-github-lambda %s' % BLOGC_VERSION)
- payload = json.loads(message)
-
- if payload['ref'] == 'refs/heads/master':
- print('Building: %s' % payload['repository']['full_name'])
- debug = 'DEBUG' in os.environ
-
- env = os.environ.copy()
- env['BLOGC'] = os.path.join(cwd, 'blogc')
- env['OUTPUT_DIR'] = '_build_lambda'
-
- rootdir = get_tarball(payload['repository']['full_name'])
- blogcfile = os.path.join(rootdir, 'blogcfile')
-
- if os.path.isfile(blogcfile):
- # deploy using blogc-make
- args = [os.path.join(cwd, 'blogc'), '-m', '-f', blogcfile,
- 'all']
- if debug:
- args.append('-V')
- rv = subprocess.call(args, env=env)
- else:
- # fallback to using make. please note that this will break if
- # amazon removes gnu make from lambda images
- stream = None if debug else subprocess.PIPE
- rv = subprocess.call(['make', '-C', rootdir], env=env,
- stdout=stream, stderr=stream)
- if rv != 0:
- raise RuntimeError('Failed to run the build tool.')
-
- sync_s3(os.path.join(rootdir, env['OUTPUT_DIR']),
- payload['repository']['name'],
- os.path.join(rootdir, 's3.json'))
-
- else:
- print("Commit not for master branch, skipping: %s" % payload['ref'])
-
-
-def api_gateway_response(code, message):
- return {
- 'statusCode': code,
- 'body': json.dumps({'message': message}),
- }
-
-
-def api_gateway_handler(event):
- headers = event.get('headers')
- if headers is None:
- return api_gateway_response(400, 'NO_HEADERS')
-
- if headers.get('X-GitHub-Event') != 'push':
- return api_gateway_response(400, 'UNSUPPORTED_EVENT')
-
- body = event.get('body', '')
-
- if GITHUB_SECRET is not None:
- sig = headers.get('X-Hub-Signature')
- if sig is None:
- return api_gateway_response(400, 'NO_SIGNATURE')
-
- pieces = sig.split('=')
- if len(pieces) != 2 or pieces[0] != 'sha1':
- return api_gateway_response(400, 'INVALID_SIGNATURE')
-
- digest = hmac.new(GITHUB_SECRET, body.encode('utf-8'), hashlib.sha1)
-
- if not hmac.compare_digest(digest.hexdigest(), pieces[1]):
- return api_gateway_response(400, 'BAD_SIGNATURE')
-
- try:
- blogc_handler(body)
- except Exception as err:
- traceback.print_exc()
- return api_gateway_response(500, 'ERROR: %s' % err)
-
- return api_gateway_response(202, 'ACCEPTED')
-
-
-def lambda_handler(event, context):
- if 'Records' in event: # sns
- for record in event['Records']:
- if 'Sns' in record:
- blogc_handler(record['Sns']['Message'])
- elif 'body' in event: # api-gateway
- return api_gateway_handler(event)
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-22 19:38:06 +0000