warc2zim/tests/test_warc_to_zim.py

#!/usr/bin/env python
# vim: ai ts=4 sts=4 et sw=4 nu

import json
import os
import re
import time

import pytest
import requests
from zimscraperlib.zim import Archive

from warc2zim.converter import iter_warc_records
from warc2zim.main import main
from warc2zim.url_rewriting import normalize
from warc2zim.utils import get_record_url

TEST_DATA_DIR = os.path.join(os.path.dirname(os.path.realpath(__file__)), "data")


# ============================================================================
CMDLINES = [
    ["example-response.warc"],
    ["example-response.warc", "--progress-file", "progress.json"],
    ["example-resource.warc.gz", "--favicon", "https://example.com/some/favicon.ico"],
    ["example-resource.warc.gz", "--favicon", "https://www.google.com/favicon.ico"],
    ["example-revisit.warc.gz"],
    [
        "example-revisit.warc.gz",
        "-u",
        "http://example.iana.org/",
        "--lang",
        "eng",
    ],
    [
        "example-utf8.warc",
        "-u",
        "https://httpbin.org/anything/utf8=%E2%9C%93?query=test&a=b&1=%E2%9C%93",
    ],
    ["single-page-test.warc"],
]


@pytest.fixture(params=CMDLINES, ids=[" ".join(cmds) for cmds in CMDLINES])
def cmdline(request):
    return request.param


# ============================================================================
FUZZYCHECKS = [
    {
        "filename": "video-yt.warc.gz",
        "entries": [
            "youtube.fuzzy.replayweb.page/get_video_info?video_id=aT-Up5Y4uRI",
            "youtube.fuzzy.replayweb.page/videoplayback?id=o-AE3bg3qVNY-gAWwYgL52vgpHKJe9ijdbu2eciNi5Uo_w",
        ],
    },
    {
        "filename": "video-yt-2.warc.gz",
        "entries": [
            "youtube.fuzzy.replayweb.page/youtubei/v1/player?videoId=aT-Up5Y4uRI",
            "youtube.fuzzy.replayweb.page/videoplayback?id=o-AGDtIqpFRmvgVVZk96wgGyFxL_SFSdpBxs0iBHatQpRD",
        ],
    },
    {
        "filename": "video-vimeo.warc.gz",
        "entries": [
            "vimeo.fuzzy.replayweb.page/video/347119375",
            "vimeo-cdn.fuzzy.replayweb.page/01/4423/13/347119375/1398505169.mp4",
        ],
    },
]


@pytest.fixture(params=FUZZYCHECKS, ids=[fuzzy["filename"] for fuzzy in FUZZYCHECKS])
def fuzzycheck(request):
    return request.param


# ============================================================================
class TestWarc2Zim:
    def list_articles(self, zimfile):
        zim_fh = Archive(zimfile)
        for x in range(zim_fh.entry_count):
            yield zim_fh.get_entry_by_id(x)

    def get_metadata(self, zimfile, name):
        zim_fh = Archive(zimfile)
        return zim_fh.get_metadata(name)

    def get_article(self, zimfile, path):
        zim_fh = Archive(zimfile)
        return zim_fh.get_content(path)

    def get_article_raw(self, zimfile, path):
        zim_fh = Archive(zimfile)
        return zim_fh.get_item(path)

    def verify_warc_and_zim(self, warcfile, zimfile):
        assert os.path.isfile(warcfile)
        assert os.path.isfile(zimfile)

        # [TOFIX]
        head_insert = b""

        # track to avoid checking duplicates, which are not written to ZIM
        warc_urls = set()

        zim_fh = Archive(zimfile)
        for record in iter_warc_records([warcfile]):
            url = get_record_url(record)
            if not url:
                continue

            if url in warc_urls:
                continue

            if record.rec_type not in (("response", "resource", "revisit")):
                continue

            # ignore revisit records that are to the same url
            if (
                record.rec_type == "revisit"
                and record.rec_headers["WARC-Refers-To-Target-URI"] == url
            ):
                continue

            # parse headers as record, ensure headers match
            url_no_scheme = url.split("//", 2)[1]

            if "www.youtube.com/embed" in url_no_scheme:
                # We know that those url are rewritten in zim. Don't check for them.
                break

            url_no_scheme = re.sub(r"\?\d+$", "?", url_no_scheme)

            # ensure payloads match
            try:
                payload = zim_fh.get_item(url_no_scheme)
            except KeyError:
                payload = None

            if record.http_headers and record.http_headers.get("Content-Length") == "0":
                assert not payload
            elif record.rec_type == "revisit":
                # We must have a payload
                # We should check with the content of the targeted record...
                # But difficult to test as we don't have it
                assert payload
            else:
                # We must have a payload
                assert payload
                payload_content = payload.content.tobytes()

                # if HTML, still need to account for the head insert, otherwise should
                # have exact match
                if payload.mimetype.startswith("text/html"):
                    assert head_insert in payload_content

            warc_urls.add(url)

    def test_normalize(self):
        assert normalize(None) is None
        assert normalize("") == ""
        assert normalize("https://exemple.com") == "exemple.com"
        assert normalize("https://exemple.com/") == "exemple.com/"
        assert normalize("http://example.com/?foo=bar") == "example.com/?foo=bar"
        assert normalize(b"http://example.com/?foo=bar") == "example.com/?foo=bar"

        assert normalize("https://example.com/?foo=bar") == "example.com/?foo=bar"

        assert (
            normalize("https://example.com/some/path/http://example.com/?foo=bar")
            == "example.com/some/path/http://example.com/?foo=bar"
        )

        assert (
            normalize("example.com/some/path/http://example.com/?foo=bar")
            == "example.com/some/path/http://example.com/?foo=bar"
        )

        assert (
            normalize("http://example.com/path/with/final/slash/")
            == "example.com/path/with/final/slash/"
        )

        assert normalize("http://test@example.com/") == "test@example.com/"

        assert (
            normalize(
                "http://lesfondamentaux.reseau-canope.fr/fileadmin/template/css/main.css?1588230493"
            )
            == "lesfondamentaux.reseau-canope.fr/fileadmin/template/css/main.css?"
        )

    def test_warc_to_zim_specify_params_and_metadata(self, tmp_path):
        zim_output = "zim-out-filename.zim"
        main(
            [
                "-v",
                os.path.join(TEST_DATA_DIR, "example-response.warc"),
                "--name",
                "example-response",
                "--output",
                str(tmp_path),
                "--zim-file",
                zim_output,
                "--tags",
                "some",
                "--tags",
                "foo",
                "--desc",
                "test zim",
                "--tags",
                "bar",
                "--title",
                "Some Title",
            ]
        )

        zim_output = tmp_path / zim_output

        assert os.path.isfile(zim_output)

        all_articles = {
            article.path: article.title for article in self.list_articles(zim_output)
        }

        assert all_articles == {
            # entries from WARC
            "example.com/": "Example Domain",
            "_zim_static/__wb_module_decl.js": "_zim_static/__wb_module_decl.js",
            "_zim_static/wombat.js": "_zim_static/wombat.js",
            "_zim_static/wombat_setup.js": "_zim_static/wombat_setup.js",
        }

        zim_fh = Archive(zim_output)

        # ZIM metadata
        assert list(zim_fh.metadata.keys()) == [
            "Counter",
            "Creator",
            "Date",
            "Description",
            "Language",
            "Name",
            "Publisher",
            "Scraper",
            "Tags",
            "Title",
        ]

        assert zim_fh.has_fulltext_index
        assert zim_fh.has_title_index

        assert self.get_metadata(zim_output, "Description") == b"test zim"
        assert (
            self.get_metadata(zim_output, "Tags")
            == b"_ftindex:yes;_category:other;some;foo;bar"
        )
        assert self.get_metadata(zim_output, "Title") == b"Some Title"

    def test_warc_to_zim(self, cmdline, tmp_path):
        # intput filename
        filename = cmdline[0]

        # set intput filename (first arg) to absolute path from test dir
        warcfile = os.path.join(TEST_DATA_DIR, filename)
        cmdline[0] = warcfile

        cmdline.extend(["--output", str(tmp_path), "--name", filename])

        main(cmdline)

        zimfile = filename + "_" + time.strftime("%Y-%m") + ".zim"

        if "--progress-file" in cmdline:
            with open(tmp_path / "progress.json") as fh:
                progress = json.load(fh)
                assert (
                    progress["written"] > 0
                    and progress["total"] > 0
                    and progress["written"] <= progress["total"]
                )

        self.verify_warc_and_zim(warcfile, tmp_path / zimfile)

    def test_same_domain_only(self, tmp_path):
        zim_output = "same-domain.zim"
        main(
            [
                os.path.join(TEST_DATA_DIR, "example-revisit.warc.gz"),
                "--favicon",
                "http://example.com/favicon.ico",
                "--include-domains",
                "example.com/",
                "--lang",
                "eng",
                "--zim-file",
                zim_output,
                "--name",
                "same-domain",
                "--output",
                str(tmp_path),
            ]
        )

        zim_output = tmp_path / zim_output

        for article in self.list_articles(zim_output):
            url = article.path
            # ignore the replay files, which have only one path segment
            if not url.startswith("_zim_static/"):
                assert url.startswith("example.com/")

    def test_skip_self_redirect(self, tmp_path):
        zim_output = "self-redir.zim"
        main(
            [
                os.path.join(TEST_DATA_DIR, "self-redirect.warc"),
                "--output",
                str(tmp_path),
                "--zim-file",
                zim_output,
                "--name",
                "self-redir",
            ]
        )

        zim_output = tmp_path / zim_output

    def test_include_domains_favicon_and_language(self, tmp_path):
        zim_output = "spt.zim"
        main(
            [
                os.path.join(TEST_DATA_DIR, "single-page-test.warc"),
                "-i",
                "reseau-canope.fr",
                "--output",
                str(tmp_path),
                "--zim-file",
                zim_output,
                "--name",
                "spt",
            ]
        )

        zim_output = tmp_path / zim_output

        for article in self.list_articles(zim_output):
            url = article.path
            # ignore the replay files, which have only one path segment
            if not url.startswith("_zim_static/"):
                assert "reseau-canope.fr/" in url

        # test detected language
        assert self.get_metadata(zim_output, "Language") == b"fra"

        # test detected favicon
        assert self.get_article(
            zim_output,
            "lesfondamentaux.reseau-canope.fr/fileadmin/template/img/favicon.ico",
        )
        assert self.get_metadata(zim_output, "Illustration_48x48@1")

        # test default tags added
        assert self.get_metadata(zim_output, "Tags") == b"_ftindex:yes;_category:other"

    def test_all_warcs_root_dir(self, tmp_path):
        zim_output = "test-all.zim"
        main(
            [
                os.path.join(TEST_DATA_DIR),
                "--output",
                str(tmp_path),
                "--zim-file",
                zim_output,
                "--name",
                "test-all",
                "--url",
                "http://example.com",
            ]
        )
        zim_output = tmp_path / zim_output

        # check articles from different warc records in tests/data dir

        # from example.warc.gz
        assert self.get_article(zim_output, "example.com/") != b""

        # from single-page-test.warc
        assert (
            self.get_article(
                zim_output, "lesfondamentaux.reseau-canope.fr/accueil.html"
            )
            != b""
        )

        # timestamp fuzzy match from example-with-timestamp.warc
        assert self.get_article(zim_output, "example.com/path.txt?") != b""

    def test_fuzzy_urls(self, tmp_path, fuzzycheck):
        zim_output = fuzzycheck["filename"] + ".zim"
        main(
            [
                os.path.join(TEST_DATA_DIR, fuzzycheck["filename"]),
                "--output",
                str(tmp_path),
                "--zim-file",
                zim_output,
                "--name",
                "test-fuzzy",
            ]
        )
        zim_output = tmp_path / zim_output

        for entry in fuzzycheck["entries"]:
            # This should be item and get_article_raw is eq to getItem and it will fail
            # if it is not a item
            self.get_article_raw(zim_output, entry)

    def test_error_bad_main_page(self, tmp_path):
        zim_output_not_created = "zim-out-not-created.zim"
        with pytest.raises(
            KeyError,
            match="Unable to find WARC record for main page: no-such-url.example.com/,"
            " aborting",
        ):
            main(
                [
                    "-v",
                    os.path.join(TEST_DATA_DIR, "example-response.warc"),
                    "-u",
                    "https://no-such-url.example.com",
                    "--output",
                    str(tmp_path),
                    "--name",
                    "bad",
                    "--zim-file",
                    zim_output_not_created,
                ]
            )

    def test_args_only(self):
        # error, name required
        with pytest.raises(SystemExit) as e:
            main([])
        assert e.value.code == 2

        # error, no such output directory
        with pytest.raises(
            FileNotFoundError, match="No such file or directory.*/no-such-dir"
        ):
            main(["--name", "test", "--output", "/no-such-dir"])

        # success, special error code for no output files
        assert main(["--name", "test", "--output", "./"]) == 100

    def test_custom_css(self, tmp_path):
        custom_css = b"* { background-color: red; }"
        custom_css_path = tmp_path / "custom.css"
        with open(custom_css_path, "wb") as fh:
            fh.write(custom_css)

        zim_output = "test-css.zim"

        main(
            [
                os.path.join(TEST_DATA_DIR, "example-response.warc"),
                "--output",
                str(tmp_path),
                "--zim-file",
                zim_output,
                "--name",
                "test-css",
                "--custom-css",
                str(custom_css_path),
            ]
        )
        zim_output = tmp_path / zim_output

        res = self.get_article(zim_output, "example.com/")
        assert b"warc2zim.kiwix.app/custom.css" in res

        res = self.get_article(zim_output, "warc2zim.kiwix.app/custom.css")
        assert custom_css == res

    def test_custom_css_remote(self, tmp_path):
        zim_output = "test-css.zim"
        url = (
            "https://cdn.jsdelivr.net/npm/bootstrap@4.5.3/dist/css/bootstrap-reboot.css"
        )

        main(
            [
                os.path.join(TEST_DATA_DIR, "example-response.warc"),
                "--output",
                str(tmp_path),
                "--zim-file",
                zim_output,
                "--name",
                "test-css",
                "--custom-css",
                url,
            ]
        )
        zim_output = tmp_path / zim_output

        res = self.get_article(zim_output, "example.com/")
        assert b"warc2zim.kiwix.app/custom.css" in res

        res = self.get_article(zim_output, "warc2zim.kiwix.app/custom.css")
        assert res == requests.get(url, timeout=10).content