def before_request():
"""
Before request gather log details
"""
g.start_time = time.time()
g.request_id = str(ulid.new())
get_log().info("CorrelationId", correlationId=request.headers.get("x-linz-correlation-id", str(ulid.new())))
def handle_data_error(e: DataError):
"""
Custom error
"""
response_body = {"message": e.msg}
get_log().info("ResponseMessage", message=e.msg, httpCode=e.http_code)
return jsonify(response_body), e.http_code
def handle_http_error(e: HTTPException):
"""
Catch HTTP exceptions
"""
response_body = {"message": e.description}
get_log().error("Exception", exception=e)
return jsonify(response_body), e.code
def handle_error(e: Exception):
"""
Catch python standard exception
"""
response_body = {"message": "Internal Server Error"}
get_log().error("Exception", exception=e)
return jsonify(response_body), 500
def validate_qgis_version(qgis_version):
"""
Ensure the query parameter is a valid version string
:param qgis_version: qgis version to filter by
:type qgis_version: string
"""
try:
StrictVersion(qgis_version)
except ValueError:
get_log().error("Invalid QGIS version")
raise DataError(400, "Invalid QGIS version")
def validate_stage(plugin_stage):
"""
# As query params that are not "?qgis=x"can not be sent via QGIS,
# at this stage only dev and prd stages are able to be stored
# dev is opt in via `?stage=dev. If the `stage` query param is not supplied
# the API interactions are considered to be for prd plugins
"""
if plugin_stage not in ["dev", ""]:
get_log().error("stage is not recognised")
raise DataError(400, "stage is not recognised")
return plugin_stage
def get_access_token(headers):
"""
Parse the bearer token
"""
auth_header = headers.get("authorization", None)
if not auth_header:
get_log().error("InvalidToken")
raise DataError(403, "Invalid token")
if not auth_header.lower().startswith(AUTH_PREFIX):
get_log().error("InvalidToken", authHeader=auth_header)
raise DataError(403, "Invalid token")
return auth_header[len(AUTH_PREFIX) :]
def health():
"""
Ping to confirm the service is up
"""
checks = {}
# check database connection
MetadataModel.all_version_zeros(DEFUALT_STAGE)
checks["db"] = {"status": "ok"}
# check s3 connection
aws.s3_head_bucket(repo_bucket_name)
checks["s3"] = {"status": "ok"}
# Anything not a 200 has been caught as an
# error and the health-checks have failed
get_log().info({"status": "ok", "details": checks})
return format_response({"status": "ok"}, 200)
def upload(plugin_id):
"""
End point for processing QGIS plugin data POSTed by the user
If the query param "?stage" is not supplied, plugins POSTed are
considered production. if `?stage=dev` is used the plugin
is stored as a dev version
:param data: plugin
:type data: binary data
:returns: tuple (http response, http code)
:rtype: tuple (flask.wrappers.Response, int)
"""
plugin_stage = request.args.get("stage", DEFUALT_STAGE)
validate_stage(plugin_stage)
post_data = request.get_data()
if not post_data:
get_log().error("NoDataSupplied")
raise DataError(400, "No plugin file supplied")
# Get users access token from header
token = get_access_token(request.headers)
MetadataModel.validate_token(token, plugin_id, plugin_stage)
# Test the file is a zipfile
if not zipfile.is_zipfile(BytesIO(post_data)):
get_log().error("NotZipfile")
raise DataError(400, "Plugin file supplied not a Zipfile")
# Extract plugin metadata
plugin_zipfile = zipfile.ZipFile(BytesIO(post_data), "r", zipfile.ZIP_DEFLATED, False)
metadata_path = plugin_parser.metadata_path(plugin_zipfile)
metadata = plugin_parser.metadata_contents(plugin_zipfile, metadata_path)
# Get the plugins root dir. This is what QGIS references when handling plugins
g.plugin_id = plugin_parser.zipfile_root_dir(plugin_zipfile)
if g.plugin_id != plugin_id:
raise DataError(400, "Invalid plugin name %s" % g.plugin_id)
# Allocate a filename
filename = str(uuid.uuid4())
get_log().info("FileName", filename=filename)
# Upload the plugin to s3
aws.s3_put(post_data, repo_bucket_name, filename, g.plugin_id)
get_log().info("UploadedTos3", filename=filename, bucketName=repo_bucket_name)
# Update metadata database
try:
plugin_metadata = MetadataModel.new_plugin_version(metadata, g.plugin_id, filename, plugin_stage)
except ValueError as error:
raise DataError(400, str(error))
return format_response(plugin_metadata, 201)
def validate_token(cls, token, plugin_id, plugin_stage):
"""
Check the bearer-token against the plugins secret to ensure
the user can modify the plugin.
:param token: bearer-token as submitted by user. Ensures user can modify plugin record
:type token: str
:param plugin_id: plugin root folder. Makes up the PK
:type plugin_id: str
"""
result = cls.get_plugin_item(plugin_id, plugin_stage, "metadata")
try:
metadata = next(result)
except StopIteration:
get_log().error("PluginNotFound")
raise DataError(400, "Plugin Not Found")
if hash_token(token) != metadata.secret:
get_log().error("InvalidToken")
raise DataError(403, "Invalid token")
def after_request(response):
"""
After request logout API/Lambda metrics
"""
get_log().info(
"RequestMetadata",
uri=request.path,
method=request.method,
status=response.status,
args=dict(request.args),
duration=(time.time() - g.start_time) * 1000,
lambdaName=os.environ["AWS_LAMBDA_FUNCTION_NAME"],
lambdaMemory=os.environ["AWS_LAMBDA_FUNCTION_MEMORY_SIZE"],
lambdaVersion=os.environ["AWS_LAMBDA_FUNCTION_VERSION"],
lambdaLogStreamName=os.environ["AWS_LAMBDA_LOG_STREAM_NAME"],
lambdaRegion=os.environ["AWS_REGION"],
)
response.headers["X-Request-ID"] = g.request_id
return response
def archive_plugin(cls, plugin_id, plugin_stage):
"""
Retire plugin by adding a enddate to the metadata record
:param plugin_id: plugin Id. Makes up the PK
:type plugin_id: str
:returns: json describing archived plugin metadata
:rtype: json
"""
result = cls.get_plugin_item(plugin_id, plugin_stage)
try:
version_zero = next(result)
except StopIteration:
get_log().error("PluginNotFound")
raise DataError(400, "Plugin Not Found")
version_zero.update(actions=[
cls.ended_at.set(datetime.now()),
cls.updated_at.set(datetime.now()),
cls.revisions.set(version_zero.revisions + 1),
])
# Insert former v0 into revision
cls.insert_revision(version_zero.attribute_values)
get_log().info("RevisionInserted",
pluginId=plugin_id,
revision=version_zero.revisions)
updated_metadata = json.loads(
json.dumps(version_zero.attribute_values, cls=ModelEncoder))
get_log().info("MetadataStored", metadata=updated_metadata)
return updated_metadata
def new_plugin_version(cls, metadata, plugin_id, filename, plugin_stage):
"""
If a new version of an existing plugin is submitted via the API
update the version zero record with its details and
store a revision of the former version zero entry for
database audit purposes.
:param metadata: ConfigParser representation of metadata.txt
:type metadata: configparser.ConfigParser
:param plugin_id: plugin root folder. Makes up the PK
:type plugin_id: str
:param filename: filename of plugin.zip in datastore (currently s3)
:type filename: str
:param plugin_stage: plugins stage (dev or prd)
:type stage: str
:returns: json describing plugin metadata
:rtype: json
"""
result = cls.get_plugin_item(plugin_id, plugin_stage)
try:
version_zero = next(result)
except StopIteration:
get_log().error("PluginNotFound")
raise DataError(400, "Plugin Not Found")
# Update version zero
cls.update_version_zero(metadata, version_zero, filename)
get_log().info("VersionZeroUpdated")
# Insert v0 into revision
cls.insert_revision(version_zero.attribute_values)
get_log().info("RevisionInserted",
pluginId=plugin_id,
revision=version_zero.revisions)
updated_metadata = json.loads(
json.dumps(version_zero.attribute_values, cls=ModelEncoder))
get_log().info("RevisionInserted",
pluginId=plugin_id,
stage=plugin_stage,
revision=version_zero.revisions)
return updated_metadata
