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import json
import pytest
import responses

from sandcrawler import CdxApiClient, CdxApiError, WaybackClient, WaybackError, PetaboxError


CDX_TARGET = "http://fatcat.wiki/"
CDX_DT = "20180812220054"
# cdx -m exact -p output=json -p from=20180812220054 -p to=20180812220054 http://fatcat.wiki/
CDX_SINGLE_HIT = [
 ["urlkey","timestamp","original","mimetype","statuscode","digest","redirect","robotflags","length","offset","filename"],
 ["wiki,fatcat)/", CDX_DT, CDX_TARGET, "text/html", "200", "O5RHV6OQ7SIHDJIEP7ZW53DLRX5NFIJR", "-", "-", "8445", "108062304", "WIDE-20180810142205-crawl802/WIDE-20180812131623-00059.warc.gz"],
]

CDX_BEST_SHA1B32 = "AAAAAAAAASIHDJIEP7ZW53DLRX5NFIJR"
# cdx -m exact -p output=json -p from=20180812220054 -p to=20180812220054 http://fatcat.wiki/
CDX_MULTI_HIT = [
 ["urlkey","timestamp","original","mimetype","statuscode","digest","redirect","robotflags","length","offset","filename"],
 ["wiki,fatcat)/", CDX_DT, CDX_TARGET, "text/html", "200", "O5RHV6OQ7SIHDJIEP7ZW53DLRX5NFIJR", "-", "-", "8445", "108062304", "WIDE-20180810142205-crawl802/WIDE-20180812131623-00059.warc.gz"],
 # sooner, but not right mimetype
 ["wiki,fatcat)/", "20180912220054", CDX_TARGET, "text/html", "200", "O5RHV6OQ7SIHDJIEP7ZW53DLRX5NFIJR", "-", "-", "8445", "108062304", "WIDE-20180810142205-crawl802/WIDE-20180812131623-00059.warc.gz"],
 # sooner and mimetype, but wrong status code
 ["wiki,fatcat)/", "20180912220054", CDX_TARGET, "application/pdf", "400", "O5RHV6OQ7SIHDJIEP7ZW53DLRX5NFIJR", "-", "-", "8445", "108062304", "WIDE-20180810142205-crawl802/WIDE-20180812131623-00059.warc.gz"],
 ["wiki,fatcat)/", "20180912220054", CDX_TARGET, "application/pdf", "500", "O5RHV6OQ7SIHDJIEP7ZW53DLRX5NFIJR", "-", "-", "8445", "108062304", "WIDE-20180810142205-crawl802/WIDE-20180812131623-00059.warc.gz"],
 ["wiki,fatcat)/", "20180912220054", CDX_TARGET, "application/pdf", "150", "O5RHV6OQ7SIHDJIEP7ZW53DLRX5NFIJR", "-", "-", "8445", "108062304", "WIDE-20180810142205-crawl802/WIDE-20180812131623-00059.warc.gz"],
 # "best"
 ["wiki,fatcat)/", CDX_DT, CDX_TARGET, "application/pdf", "200", CDX_BEST_SHA1B32, "-", "-", "8445", "108062304", "WIDE-20180810142205-crawl802/WIDE-20180812131623-00059.warc.gz"],
 # older
 ["wiki,fatcat)/", "20180712220054", CDX_TARGET, "application/pdf", "200", "O5RHV6OQ7SIHDJIEP7ZW53DLRX5NFIJR", "-", "-", "8445", "108062304", "WIDE-20180810142205-crawl802/WIDE-20180812131623-00059.warc.gz"],
]

@pytest.fixture
def cdx_client():
    client = CdxApiClient(
        host_url="http://dummy-cdx/cdx",
        cdx_auth_token="dummy-token",
    )
    return client

@responses.activate
def test_cdx_fetch(cdx_client):

    responses.add(responses.GET,
        'http://dummy-cdx/cdx',
        status=200,
        body=json.dumps(CDX_SINGLE_HIT))

    resp = cdx_client.fetch(CDX_TARGET, CDX_DT)

    assert len(responses.calls) == 1

    assert resp.datetime == CDX_DT
    assert resp.url == CDX_TARGET
    assert resp.sha1b32 == "O5RHV6OQ7SIHDJIEP7ZW53DLRX5NFIJR"
    assert resp.warc_csize == "8445"
    assert resp.warc_offset == "108062304"
    assert resp.warc_path == "WIDE-20180810142205-crawl802/WIDE-20180812131623-00059.warc.gz"

@responses.activate
def test_cdx_fetch_errors(cdx_client):

    with pytest.raises(ValueError):
        resp = cdx_client.fetch(CDX_TARGET, "2019")

    responses.add(responses.GET,
        'http://dummy-cdx/cdx',
        status=200,
        body=json.dumps(CDX_SINGLE_HIT))

    with pytest.raises(KeyError):
        resp = cdx_client.fetch(CDX_TARGET, "20180812220055")

    with pytest.raises(KeyError):
        resp = cdx_client.fetch("http://some-other.com", CDX_DT)

    resp = cdx_client.fetch(CDX_TARGET, CDX_DT)
    assert len(responses.calls) == 3

@responses.activate
def test_cdx_lookup_best(cdx_client):

    responses.add(responses.GET,
        'http://dummy-cdx/cdx',
        status=200,
        body=json.dumps(CDX_MULTI_HIT))

    resp = cdx_client.lookup_best(CDX_TARGET, best_mimetype="application/pdf")

    assert len(responses.calls) == 1

    assert resp.datetime == CDX_DT
    assert resp.url == CDX_TARGET
    assert resp.sha1b32 == CDX_BEST_SHA1B32
    assert resp.warc_path == CDX_SINGLE_HIT[1][-1]

WARC_TARGET = "http://fatcat.wiki/"
WARC_BODY = b"<html>some stuff</html>"

@pytest.fixture
def wayback_client(cdx_client, mocker):
    client = WaybackClient(
        cdx_client=cdx_client,
        petabox_webdata_secret="dummy-petabox-secret",
    )
    # mock out the wayback store with mock stuff
    client.rstore = mocker.Mock()
    resource = mocker.Mock()
    client.rstore.load_resource = mocker.MagicMock(return_value=resource)
    resource.get_status = mocker.MagicMock(return_value=[200])
    resource.get_location = mocker.MagicMock(return_value=[WARC_TARGET])
    body = mocker.Mock()
    resource.open_raw_content = mocker.MagicMock(return_value=body)
    body.read = mocker.MagicMock(return_value=WARC_BODY)

    return client

def test_wayback_fetch(wayback_client, mocker):
    resp = wayback_client.fetch_petabox(123, 456789, "here/there.warc.gz")
    assert resp.body == WARC_BODY
    assert resp.location == WARC_TARGET

    resp = wayback_client.fetch_petabox_body(123, 456789, "here/there.warc.gz")
    assert resp == WARC_BODY