mirror of https://github.com/scrapy/scrapy.git
786 lines
27 KiB
Python
786 lines
27 KiB
Python
import dataclasses
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import os
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import random
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import time
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import warnings
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from abc import ABC, abstractmethod
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from datetime import datetime
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from ftplib import FTP
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from io import BytesIO
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from pathlib import Path
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from posixpath import split
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from shutil import rmtree
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from tempfile import mkdtemp
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from typing import Any
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from unittest import mock
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from urllib.parse import urlparse
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import attr
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import pytest
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from itemadapter import ItemAdapter
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from twisted.internet.defer import inlineCallbacks
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from twisted.trial import unittest
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from scrapy.http import Request, Response
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from scrapy.item import Field, Item
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from scrapy.pipelines.files import (
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FilesPipeline,
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FSFilesStore,
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FTPFilesStore,
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GCSFilesStore,
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S3FilesStore,
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)
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from scrapy.utils.test import get_crawler
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from tests.mockserver import MockFTPServer
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from .test_pipeline_media import _mocked_download_func
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def get_gcs_content_and_delete(
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bucket: Any, path: str
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) -> tuple[bytes, list[dict[str, str]], Any]:
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from google.cloud import storage # noqa: PLC0415
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client = storage.Client(project=os.environ.get("GCS_PROJECT_ID"))
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bucket = client.get_bucket(bucket)
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blob = bucket.get_blob(path)
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content = blob.download_as_string()
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acl = list(blob.acl) # loads acl before it will be deleted
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bucket.delete_blob(path)
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return content, acl, blob
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def get_ftp_content_and_delete(
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path: str,
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host: str,
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port: int,
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username: str,
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password: str,
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use_active_mode: bool = False,
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) -> bytes:
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ftp = FTP()
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ftp.connect(host, port)
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ftp.login(username, password)
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if use_active_mode:
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ftp.set_pasv(False)
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ftp_data: list[bytes] = []
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def buffer_data(data: bytes) -> None:
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ftp_data.append(data)
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ftp.retrbinary(f"RETR {path}", buffer_data)
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dirname, filename = split(path)
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ftp.cwd(dirname)
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ftp.delete(filename)
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return b"".join(ftp_data)
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class TestFilesPipeline(unittest.TestCase):
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def setUp(self):
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self.tempdir = mkdtemp()
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settings_dict = {"FILES_STORE": self.tempdir}
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crawler = get_crawler(spidercls=None, settings_dict=settings_dict)
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self.pipeline = FilesPipeline.from_crawler(crawler)
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self.pipeline.download_func = _mocked_download_func
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self.pipeline.open_spider(None)
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def tearDown(self):
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rmtree(self.tempdir)
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def test_file_path(self):
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file_path = self.pipeline.file_path
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assert (
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file_path(Request("https://dev.mydeco.com/mydeco.pdf"))
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== "full/c9b564df929f4bc635bdd19fde4f3d4847c757c5.pdf"
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)
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assert (
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file_path(
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Request(
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"http://www.maddiebrown.co.uk///catalogue-items//image_54642_12175_95307.txt"
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)
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)
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== "full/4ce274dd83db0368bafd7e406f382ae088e39219.txt"
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)
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assert (
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file_path(
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Request("https://dev.mydeco.com/two/dirs/with%20spaces%2Bsigns.doc")
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)
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== "full/94ccc495a17b9ac5d40e3eabf3afcb8c2c9b9e1a.doc"
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)
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assert (
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file_path(
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Request(
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"http://www.dfsonline.co.uk/get_prod_image.php?img=status_0907_mdm.jpg"
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)
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)
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== "full/4507be485f38b0da8a0be9eb2e1dfab8a19223f2.jpg"
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)
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assert (
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file_path(Request("http://www.dorma.co.uk/images/product_details/2532/"))
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== "full/97ee6f8a46cbbb418ea91502fd24176865cf39b2"
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)
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assert (
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file_path(Request("http://www.dorma.co.uk/images/product_details/2532"))
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== "full/244e0dd7d96a3b7b01f54eded250c9e272577aa1"
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)
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assert (
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file_path(
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Request("http://www.dorma.co.uk/images/product_details/2532"),
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response=Response("http://www.dorma.co.uk/images/product_details/2532"),
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info=object(),
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)
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== "full/244e0dd7d96a3b7b01f54eded250c9e272577aa1"
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)
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assert (
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file_path(
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Request(
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"http://www.dfsonline.co.uk/get_prod_image.php?img=status_0907_mdm.jpg.bohaha"
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)
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)
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== "full/76c00cef2ef669ae65052661f68d451162829507"
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)
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assert (
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file_path(
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Request(
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"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAR0AAACxCAMAAADOHZloAAACClBMVEX/\
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//+F0tzCwMK76ZKQ21AMqr7oAAC96JvD5aWM2kvZ78J0N7fmAAC46Y4Ap7y"
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)
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)
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== "full/178059cbeba2e34120a67f2dc1afc3ecc09b61cb.png"
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)
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def test_fs_store(self):
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assert isinstance(self.pipeline.store, FSFilesStore)
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assert self.pipeline.store.basedir == self.tempdir
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path = "some/image/key.jpg"
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fullpath = Path(self.tempdir, "some", "image", "key.jpg")
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assert self.pipeline.store._get_filesystem_path(path) == fullpath
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@inlineCallbacks
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def test_file_not_expired(self):
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item_url = "http://example.com/file.pdf"
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item = _create_item_with_files(item_url)
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patchers = [
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mock.patch.object(FilesPipeline, "inc_stats", return_value=True),
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mock.patch.object(
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FSFilesStore,
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"stat_file",
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return_value={"checksum": "abc", "last_modified": time.time()},
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),
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mock.patch.object(
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FilesPipeline,
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"get_media_requests",
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return_value=[_prepare_request_object(item_url)],
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),
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]
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for p in patchers:
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p.start()
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result = yield self.pipeline.process_item(item, None)
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assert result["files"][0]["checksum"] == "abc"
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assert result["files"][0]["status"] == "uptodate"
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for p in patchers:
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p.stop()
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@inlineCallbacks
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def test_file_expired(self):
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item_url = "http://example.com/file2.pdf"
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item = _create_item_with_files(item_url)
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patchers = [
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mock.patch.object(
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FSFilesStore,
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"stat_file",
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return_value={
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"checksum": "abc",
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"last_modified": time.time()
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- (self.pipeline.expires * 60 * 60 * 24 * 2),
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},
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),
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mock.patch.object(
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FilesPipeline,
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"get_media_requests",
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return_value=[_prepare_request_object(item_url)],
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),
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mock.patch.object(FilesPipeline, "inc_stats", return_value=True),
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]
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for p in patchers:
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p.start()
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result = yield self.pipeline.process_item(item, None)
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assert result["files"][0]["checksum"] != "abc"
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assert result["files"][0]["status"] == "downloaded"
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for p in patchers:
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p.stop()
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@inlineCallbacks
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def test_file_cached(self):
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item_url = "http://example.com/file3.pdf"
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item = _create_item_with_files(item_url)
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patchers = [
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mock.patch.object(FilesPipeline, "inc_stats", return_value=True),
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mock.patch.object(
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FSFilesStore,
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"stat_file",
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return_value={
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"checksum": "abc",
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"last_modified": time.time()
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- (self.pipeline.expires * 60 * 60 * 24 * 2),
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},
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),
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mock.patch.object(
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FilesPipeline,
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"get_media_requests",
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return_value=[_prepare_request_object(item_url, flags=["cached"])],
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),
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]
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for p in patchers:
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p.start()
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result = yield self.pipeline.process_item(item, None)
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assert result["files"][0]["checksum"] != "abc"
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assert result["files"][0]["status"] == "cached"
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for p in patchers:
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p.stop()
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def test_file_path_from_item(self):
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"""
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Custom file path based on item data, overriding default implementation
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"""
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class CustomFilesPipeline(FilesPipeline):
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def file_path(self, request, response=None, info=None, item=None):
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return f"full/{item.get('path')}"
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file_path = CustomFilesPipeline.from_crawler(
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get_crawler(None, {"FILES_STORE": self.tempdir})
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).file_path
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item = {"path": "path-to-store-file"}
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request = Request("http://example.com")
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assert file_path(request, item=item) == "full/path-to-store-file"
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class TestFilesPipelineFieldsMixin(ABC):
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@property
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@abstractmethod
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def item_class(self) -> Any:
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raise NotImplementedError
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def test_item_fields_default(self, tmp_path):
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url = "http://www.example.com/files/1.txt"
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item = self.item_class(name="item1", file_urls=[url])
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pipeline = FilesPipeline.from_crawler(
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get_crawler(None, {"FILES_STORE": tmp_path})
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)
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requests = list(pipeline.get_media_requests(item, None))
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assert requests[0].url == url
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results = [(True, {"url": url})]
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item = pipeline.item_completed(results, item, None)
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files = ItemAdapter(item).get("files")
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assert files == [results[0][1]]
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assert isinstance(item, self.item_class)
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def test_item_fields_override_settings(self, tmp_path):
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url = "http://www.example.com/files/1.txt"
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item = self.item_class(name="item1", custom_file_urls=[url])
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pipeline = FilesPipeline.from_crawler(
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get_crawler(
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None,
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{
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"FILES_STORE": tmp_path,
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"FILES_URLS_FIELD": "custom_file_urls",
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"FILES_RESULT_FIELD": "custom_files",
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},
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)
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)
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requests = list(pipeline.get_media_requests(item, None))
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assert requests[0].url == url
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results = [(True, {"url": url})]
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item = pipeline.item_completed(results, item, None)
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custom_files = ItemAdapter(item).get("custom_files")
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assert custom_files == [results[0][1]]
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assert isinstance(item, self.item_class)
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class TestFilesPipelineFieldsDict(TestFilesPipelineFieldsMixin):
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item_class = dict
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class FilesPipelineTestItem(Item):
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name = Field()
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# default fields
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file_urls = Field()
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files = Field()
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# overridden fields
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custom_file_urls = Field()
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custom_files = Field()
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class TestFilesPipelineFieldsItem(TestFilesPipelineFieldsMixin):
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item_class = FilesPipelineTestItem
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@dataclasses.dataclass
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class FilesPipelineTestDataClass:
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name: str
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# default fields
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file_urls: list = dataclasses.field(default_factory=list)
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files: list = dataclasses.field(default_factory=list)
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# overridden fields
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custom_file_urls: list = dataclasses.field(default_factory=list)
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custom_files: list = dataclasses.field(default_factory=list)
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class TestFilesPipelineFieldsDataClass(TestFilesPipelineFieldsMixin):
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item_class = FilesPipelineTestDataClass
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@attr.s
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class FilesPipelineTestAttrsItem:
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name = attr.ib(default="")
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# default fields
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file_urls: list[str] = attr.ib(default=list)
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files: list[dict[str, str]] = attr.ib(default=list)
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# overridden fields
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custom_file_urls: list[str] = attr.ib(default=list)
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custom_files: list[dict[str, str]] = attr.ib(default=list)
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class TestFilesPipelineFieldsAttrsItem(TestFilesPipelineFieldsMixin):
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item_class = FilesPipelineTestAttrsItem
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|
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class TestFilesPipelineCustomSettings:
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default_cls_settings = {
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"EXPIRES": 90,
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"FILES_URLS_FIELD": "file_urls",
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"FILES_RESULT_FIELD": "files",
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}
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file_cls_attr_settings_map = {
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("EXPIRES", "FILES_EXPIRES", "expires"),
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("FILES_URLS_FIELD", "FILES_URLS_FIELD", "files_urls_field"),
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("FILES_RESULT_FIELD", "FILES_RESULT_FIELD", "files_result_field"),
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}
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def _generate_fake_settings(self, tmp_path, prefix=None):
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def random_string():
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return "".join([chr(random.randint(97, 123)) for _ in range(10)])
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settings = {
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"FILES_EXPIRES": random.randint(100, 1000),
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"FILES_URLS_FIELD": random_string(),
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"FILES_RESULT_FIELD": random_string(),
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"FILES_STORE": tmp_path,
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}
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if not prefix:
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return settings
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return {
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prefix.upper() + "_" + k if k != "FILES_STORE" else k: v
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for k, v in settings.items()
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}
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def _generate_fake_pipeline(self):
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class UserDefinedFilePipeline(FilesPipeline):
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EXPIRES = 1001
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FILES_URLS_FIELD = "alfa"
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FILES_RESULT_FIELD = "beta"
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return UserDefinedFilePipeline
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def test_different_settings_for_different_instances(self, tmp_path):
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"""
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If there are different instances with different settings they should keep
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different settings.
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"""
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custom_settings = self._generate_fake_settings(tmp_path)
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another_pipeline = FilesPipeline.from_crawler(
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get_crawler(None, custom_settings)
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)
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one_pipeline = FilesPipeline(tmp_path, crawler=get_crawler(None))
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for pipe_attr, settings_attr, pipe_ins_attr in self.file_cls_attr_settings_map:
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default_value = self.default_cls_settings[pipe_attr]
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assert getattr(one_pipeline, pipe_attr) == default_value
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custom_value = custom_settings[settings_attr]
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assert default_value != custom_value
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assert getattr(another_pipeline, pipe_ins_attr) == custom_value
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|
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def test_subclass_attributes_preserved_if_no_settings(self, tmp_path):
|
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"""
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If subclasses override class attributes and there are no special settings those values should be kept.
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"""
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pipe_cls = self._generate_fake_pipeline()
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pipe = pipe_cls.from_crawler(get_crawler(None, {"FILES_STORE": tmp_path}))
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for pipe_attr, settings_attr, pipe_ins_attr in self.file_cls_attr_settings_map:
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custom_value = getattr(pipe, pipe_ins_attr)
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assert custom_value != self.default_cls_settings[pipe_attr]
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assert getattr(pipe, pipe_ins_attr) == getattr(pipe, pipe_attr)
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|
|
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def test_subclass_attrs_preserved_custom_settings(self, tmp_path):
|
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"""
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If file settings are defined but they are not defined for subclass
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settings should be preserved.
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"""
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pipeline_cls = self._generate_fake_pipeline()
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settings = self._generate_fake_settings(tmp_path)
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pipeline = pipeline_cls.from_crawler(get_crawler(None, settings))
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for pipe_attr, settings_attr, pipe_ins_attr in self.file_cls_attr_settings_map:
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value = getattr(pipeline, pipe_ins_attr)
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setting_value = settings.get(settings_attr)
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assert value != self.default_cls_settings[pipe_attr]
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assert value == setting_value
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|
|
|
def test_no_custom_settings_for_subclasses(self, tmp_path):
|
|
"""
|
|
If there are no settings for subclass and no subclass attributes, pipeline should use
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attributes of base class.
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|
"""
|
|
|
|
class UserDefinedFilesPipeline(FilesPipeline):
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pass
|
|
|
|
user_pipeline = UserDefinedFilesPipeline.from_crawler(
|
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get_crawler(None, {"FILES_STORE": tmp_path})
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)
|
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for pipe_attr, settings_attr, pipe_ins_attr in self.file_cls_attr_settings_map:
|
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# Values from settings for custom pipeline should be set on pipeline instance.
|
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custom_value = self.default_cls_settings.get(pipe_attr.upper())
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assert getattr(user_pipeline, pipe_ins_attr) == custom_value
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|
|
|
def test_custom_settings_for_subclasses(self, tmp_path):
|
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"""
|
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If there are custom settings for subclass and NO class attributes, pipeline should use custom
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settings.
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"""
|
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class UserDefinedFilesPipeline(FilesPipeline):
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pass
|
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prefix = UserDefinedFilesPipeline.__name__.upper()
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settings = self._generate_fake_settings(tmp_path, prefix=prefix)
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user_pipeline = UserDefinedFilesPipeline.from_crawler(
|
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get_crawler(None, settings)
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)
|
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for pipe_attr, settings_attr, pipe_inst_attr in self.file_cls_attr_settings_map:
|
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# Values from settings for custom pipeline should be set on pipeline instance.
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custom_value = settings.get(prefix + "_" + settings_attr)
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assert custom_value != self.default_cls_settings[pipe_attr]
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assert getattr(user_pipeline, pipe_inst_attr) == custom_value
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|
|
|
def test_custom_settings_and_class_attrs_for_subclasses(self, tmp_path):
|
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"""
|
|
If there are custom settings for subclass AND class attributes
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|
setting keys are preferred and override attributes.
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|
"""
|
|
pipeline_cls = self._generate_fake_pipeline()
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prefix = pipeline_cls.__name__.upper()
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settings = self._generate_fake_settings(tmp_path, prefix=prefix)
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user_pipeline = pipeline_cls.from_crawler(get_crawler(None, settings))
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|
for (
|
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pipe_cls_attr,
|
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settings_attr,
|
|
pipe_inst_attr,
|
|
) in self.file_cls_attr_settings_map:
|
|
custom_value = settings.get(prefix + "_" + settings_attr)
|
|
assert custom_value != self.default_cls_settings[pipe_cls_attr]
|
|
assert getattr(user_pipeline, pipe_inst_attr) == custom_value
|
|
|
|
def test_cls_attrs_with_DEFAULT_prefix(self, tmp_path):
|
|
class UserDefinedFilesPipeline(FilesPipeline):
|
|
DEFAULT_FILES_RESULT_FIELD = "this"
|
|
DEFAULT_FILES_URLS_FIELD = "that"
|
|
|
|
pipeline = UserDefinedFilesPipeline.from_crawler(
|
|
get_crawler(None, {"FILES_STORE": tmp_path})
|
|
)
|
|
assert (
|
|
pipeline.files_result_field
|
|
== UserDefinedFilesPipeline.DEFAULT_FILES_RESULT_FIELD
|
|
)
|
|
assert (
|
|
pipeline.files_urls_field
|
|
== UserDefinedFilesPipeline.DEFAULT_FILES_URLS_FIELD
|
|
)
|
|
|
|
def test_user_defined_subclass_default_key_names(self, tmp_path):
|
|
"""Test situation when user defines subclass of FilesPipeline,
|
|
but uses attribute names for default pipeline (without prefixing
|
|
them with pipeline class name).
|
|
"""
|
|
settings = self._generate_fake_settings(tmp_path)
|
|
|
|
class UserPipe(FilesPipeline):
|
|
pass
|
|
|
|
pipeline_cls = UserPipe.from_crawler(get_crawler(None, settings))
|
|
|
|
for pipe_attr, settings_attr, pipe_inst_attr in self.file_cls_attr_settings_map:
|
|
expected_value = settings.get(settings_attr)
|
|
assert getattr(pipeline_cls, pipe_inst_attr) == expected_value
|
|
|
|
def test_file_pipeline_using_pathlike_objects(self, tmp_path):
|
|
class CustomFilesPipelineWithPathLikeDir(FilesPipeline):
|
|
def file_path(self, request, response=None, info=None, *, item=None):
|
|
return Path("subdir") / Path(request.url).name
|
|
|
|
pipeline = CustomFilesPipelineWithPathLikeDir.from_crawler(
|
|
get_crawler(None, {"FILES_STORE": tmp_path})
|
|
)
|
|
request = Request("http://example.com/image01.jpg")
|
|
assert pipeline.file_path(request) == Path("subdir/image01.jpg")
|
|
|
|
def test_files_store_constructor_with_pathlike_object(self, tmp_path):
|
|
fs_store = FSFilesStore(tmp_path)
|
|
assert fs_store.basedir == str(tmp_path)
|
|
|
|
|
|
@pytest.mark.requires_botocore
|
|
class TestS3FilesStore(unittest.TestCase):
|
|
@inlineCallbacks
|
|
def test_persist(self):
|
|
bucket = "mybucket"
|
|
key = "export.csv"
|
|
uri = f"s3://{bucket}/{key}"
|
|
buffer = mock.MagicMock()
|
|
meta = {"foo": "bar"}
|
|
path = ""
|
|
content_type = "image/png"
|
|
|
|
store = S3FilesStore(uri)
|
|
from botocore.stub import Stubber # noqa: PLC0415
|
|
|
|
with Stubber(store.s3_client) as stub:
|
|
stub.add_response(
|
|
"put_object",
|
|
expected_params={
|
|
"ACL": S3FilesStore.POLICY,
|
|
"Body": buffer,
|
|
"Bucket": bucket,
|
|
"CacheControl": S3FilesStore.HEADERS["Cache-Control"],
|
|
"ContentType": content_type,
|
|
"Key": key,
|
|
"Metadata": meta,
|
|
},
|
|
service_response={},
|
|
)
|
|
|
|
yield store.persist_file(
|
|
path,
|
|
buffer,
|
|
info=None,
|
|
meta=meta,
|
|
headers={"Content-Type": content_type},
|
|
)
|
|
|
|
stub.assert_no_pending_responses()
|
|
# The call to read does not happen with Stubber
|
|
assert buffer.method_calls == [mock.call.seek(0)]
|
|
|
|
@inlineCallbacks
|
|
def test_stat(self):
|
|
bucket = "mybucket"
|
|
key = "export.csv"
|
|
uri = f"s3://{bucket}/{key}"
|
|
checksum = "3187896a9657a28163abb31667df64c8"
|
|
last_modified = datetime(2019, 12, 1)
|
|
|
|
store = S3FilesStore(uri)
|
|
from botocore.stub import Stubber # noqa: PLC0415
|
|
|
|
with Stubber(store.s3_client) as stub:
|
|
stub.add_response(
|
|
"head_object",
|
|
expected_params={
|
|
"Bucket": bucket,
|
|
"Key": key,
|
|
},
|
|
service_response={
|
|
"ETag": f'"{checksum}"',
|
|
"LastModified": last_modified,
|
|
},
|
|
)
|
|
|
|
file_stats = yield store.stat_file("", info=None)
|
|
assert file_stats == {
|
|
"checksum": checksum,
|
|
"last_modified": last_modified.timestamp(),
|
|
}
|
|
|
|
stub.assert_no_pending_responses()
|
|
|
|
|
|
@pytest.mark.skipif(
|
|
"GCS_PROJECT_ID" not in os.environ, reason="GCS_PROJECT_ID not found"
|
|
)
|
|
class TestGCSFilesStore(unittest.TestCase):
|
|
@inlineCallbacks
|
|
def test_persist(self):
|
|
uri = os.environ.get("GCS_TEST_FILE_URI")
|
|
if not uri:
|
|
pytest.skip("No GCS URI available for testing")
|
|
data = b"TestGCSFilesStore: \xe2\x98\x83"
|
|
buf = BytesIO(data)
|
|
meta = {"foo": "bar"}
|
|
path = "full/filename"
|
|
store = GCSFilesStore(uri)
|
|
store.POLICY = "authenticatedRead"
|
|
expected_policy = {"role": "READER", "entity": "allAuthenticatedUsers"}
|
|
yield store.persist_file(path, buf, info=None, meta=meta, headers=None)
|
|
s = yield store.stat_file(path, info=None)
|
|
assert "last_modified" in s
|
|
assert "checksum" in s
|
|
assert s["checksum"] == "cdcda85605e46d0af6110752770dce3c"
|
|
u = urlparse(uri)
|
|
content, acl, blob = get_gcs_content_and_delete(u.hostname, u.path[1:] + path)
|
|
assert content == data
|
|
assert blob.metadata == {"foo": "bar"}
|
|
assert blob.cache_control == GCSFilesStore.CACHE_CONTROL
|
|
assert blob.content_type == "application/octet-stream"
|
|
assert expected_policy in acl
|
|
|
|
@inlineCallbacks
|
|
def test_blob_path_consistency(self):
|
|
"""Test to make sure that paths used to store files is the same as the one used to get
|
|
already uploaded files.
|
|
"""
|
|
try:
|
|
import google.cloud.storage # noqa: F401,PLC0415
|
|
except ModuleNotFoundError:
|
|
pytest.skip("google-cloud-storage is not installed")
|
|
with (
|
|
mock.patch("google.cloud.storage"),
|
|
mock.patch("scrapy.pipelines.files.time"),
|
|
):
|
|
uri = "gs://my_bucket/my_prefix/"
|
|
store = GCSFilesStore(uri)
|
|
store.bucket = mock.Mock()
|
|
path = "full/my_data.txt"
|
|
yield store.persist_file(
|
|
path, mock.Mock(), info=None, meta=None, headers=None
|
|
)
|
|
yield store.stat_file(path, info=None)
|
|
expected_blob_path = store.prefix + path
|
|
store.bucket.blob.assert_called_with(expected_blob_path)
|
|
store.bucket.get_blob.assert_called_with(expected_blob_path)
|
|
|
|
|
|
class TestFTPFileStore(unittest.TestCase):
|
|
@inlineCallbacks
|
|
def test_persist(self):
|
|
data = b"TestFTPFilesStore: \xe2\x98\x83"
|
|
buf = BytesIO(data)
|
|
meta = {"foo": "bar"}
|
|
path = "full/filename"
|
|
with MockFTPServer() as ftp_server:
|
|
store = FTPFilesStore(ftp_server.url("/"))
|
|
empty_dict = yield store.stat_file(path, info=None)
|
|
assert empty_dict == {}
|
|
yield store.persist_file(path, buf, info=None, meta=meta, headers=None)
|
|
stat = yield store.stat_file(path, info=None)
|
|
assert "last_modified" in stat
|
|
assert "checksum" in stat
|
|
assert stat["checksum"] == "d113d66b2ec7258724a268bd88eef6b6"
|
|
path = f"{store.basedir}/{path}"
|
|
content = get_ftp_content_and_delete(
|
|
path,
|
|
store.host,
|
|
store.port,
|
|
store.username,
|
|
store.password,
|
|
store.USE_ACTIVE_MODE,
|
|
)
|
|
assert data == content
|
|
|
|
|
|
class ItemWithFiles(Item):
|
|
file_urls = Field()
|
|
files = Field()
|
|
|
|
|
|
def _create_item_with_files(*files):
|
|
item = ItemWithFiles()
|
|
item["file_urls"] = files
|
|
return item
|
|
|
|
|
|
def _prepare_request_object(item_url, flags=None):
|
|
return Request(
|
|
item_url,
|
|
meta={"response": Response(item_url, status=200, body=b"data", flags=flags)},
|
|
)
|
|
|
|
|
|
# this is separate from the one in test_pipeline_media.py to specifically test FilesPipeline subclasses
|
|
class TestBuildFromCrawler:
|
|
def setup_method(self):
|
|
self.tempdir = mkdtemp()
|
|
self.crawler = get_crawler(None, {"FILES_STORE": self.tempdir})
|
|
|
|
def teardown_method(self):
|
|
rmtree(self.tempdir)
|
|
|
|
def test_simple(self):
|
|
class Pipeline(FilesPipeline):
|
|
pass
|
|
|
|
with warnings.catch_warnings(record=True) as w:
|
|
pipe = Pipeline.from_crawler(self.crawler)
|
|
assert pipe.crawler == self.crawler
|
|
assert pipe._fingerprinter
|
|
assert len(w) == 0
|
|
assert pipe.store
|
|
|
|
def test_has_old_init(self):
|
|
class Pipeline(FilesPipeline):
|
|
def __init__(self, store_uri, download_func=None, settings=None):
|
|
super().__init__(store_uri, download_func, settings)
|
|
self._init_called = True
|
|
|
|
with warnings.catch_warnings(record=True) as w:
|
|
pipe = Pipeline.from_crawler(self.crawler)
|
|
assert pipe.crawler == self.crawler
|
|
assert pipe._fingerprinter
|
|
assert len(w) == 2
|
|
assert pipe._init_called
|
|
|
|
def test_has_from_settings(self):
|
|
class Pipeline(FilesPipeline):
|
|
_from_settings_called = False
|
|
|
|
@classmethod
|
|
def from_settings(cls, settings):
|
|
o = super().from_settings(settings)
|
|
o._from_settings_called = True
|
|
return o
|
|
|
|
with warnings.catch_warnings(record=True) as w:
|
|
pipe = Pipeline.from_crawler(self.crawler)
|
|
assert pipe.crawler == self.crawler
|
|
assert pipe._fingerprinter
|
|
assert len(w) == 3
|
|
assert pipe.store
|
|
assert pipe._from_settings_called
|
|
|
|
def test_has_from_crawler_and_init(self):
|
|
class Pipeline(FilesPipeline):
|
|
_from_crawler_called = False
|
|
|
|
@classmethod
|
|
def from_crawler(cls, crawler):
|
|
settings = crawler.settings
|
|
store_uri = settings["FILES_STORE"]
|
|
o = cls(store_uri, crawler=crawler)
|
|
o._from_crawler_called = True
|
|
return o
|
|
|
|
with warnings.catch_warnings(record=True) as w:
|
|
pipe = Pipeline.from_crawler(self.crawler)
|
|
assert pipe.crawler == self.crawler
|
|
assert pipe._fingerprinter
|
|
assert len(w) == 0
|
|
assert pipe.store
|
|
assert pipe._from_crawler_called
|