gdal/autotest/gcore/vsiaz_real_instance_manual.py

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Python

#!/usr/bin/env pytest
###############################################################################
# $Id$
#
# Project: GDAL/OGR Test Suite
# Purpose: Test /vsiaz
# Author: Even Rouault <even dot rouault at spatialys dot com>
#
###############################################################################
# Copyright (c) 2017 Even Rouault <even dot rouault at spatialys dot com>
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
###############################################################################
import stat
import gdaltest
import pytest
from osgeo import gdal
pytestmark = pytest.mark.require_curl()
###############################################################################
@pytest.fixture(autouse=True, scope="module")
def module_disable_exceptions():
with gdaltest.disable_exceptions():
yield
def open_for_read(uri):
"""
Opens a test file for reading.
"""
return gdal.VSIFOpenExL(uri, "rb", 1)
###############################################################################
# Nominal cases (require valid credentials)
def test_vsiaz_extra_1():
az_resource = gdal.GetConfigOption("AZ_RESOURCE")
if az_resource is None:
pytest.skip("Missing AZ_RESOURCE")
if "/" not in az_resource:
path = "/vsiaz/" + az_resource
statres = gdal.VSIStatL(path)
assert statres is not None and stat.S_ISDIR(statres.mode), (
"%s is not a valid bucket" % path
)
readdir = gdal.ReadDir(path)
assert readdir is not None, "ReadDir() should not return empty list"
for filename in readdir:
if filename != ".":
subpath = path + "/" + filename
assert gdal.VSIStatL(subpath) is not None, (
"Stat(%s) should not return an error" % subpath
)
unique_id = "vsiaz_test"
subpath = path + "/" + unique_id
ret = gdal.Mkdir(subpath, 0)
assert ret >= 0, "Mkdir(%s) should not return an error" % subpath
readdir = gdal.ReadDir(path)
assert unique_id in readdir, "ReadDir(%s) should contain %s" % (path, unique_id)
ret = gdal.Mkdir(subpath, 0)
assert ret != 0, "Mkdir(%s) repeated should return an error" % subpath
ret = gdal.Rmdir(subpath)
assert ret >= 0, "Rmdir(%s) should not return an error" % subpath
readdir = gdal.ReadDir(path)
assert unique_id not in readdir, "ReadDir(%s) should not contain %s" % (
path,
unique_id,
)
ret = gdal.Mkdir(subpath, 0)
assert ret >= 0, "Mkdir(%s) should not return an error" % subpath
f = gdal.VSIFOpenL(subpath + "/test.txt", "wb")
assert f is not None
gdal.VSIFWriteL("hello", 1, 5, f)
gdal.VSIFCloseL(f)
ret = gdal.Rmdir(subpath)
assert ret != 0, (
"Rmdir(%s) on non empty directory should return an error" % subpath
)
f = gdal.VSIFOpenL(subpath + "/test.txt", "rb")
assert f is not None
data = gdal.VSIFReadL(1, 5, f).decode("utf-8")
assert data == "hello"
gdal.VSIFCloseL(f)
md = gdal.GetFileMetadata(subpath + "/test.txt", "HEADERS")
assert "x-ms-blob-type" in md
metadata_md = gdal.GetFileMetadata(subpath + "/test.txt", "METADATA")
assert "ETag" in metadata_md or "etag" in metadata_md
assert metadata_md != md
md = gdal.GetFileMetadata(subpath + "/test.txt", "TAGS")
assert md == {}
# Change properties
assert gdal.SetFileMetadata(
subpath + "/test.txt", {"x-ms-blob-content-type": "foo"}, "PROPERTIES"
)
md = gdal.GetFileMetadata(subpath + "/test.txt", "HEADERS")
assert (
md.get("Content-Type", "") == "foo" or md.get("content-type", "") == "foo"
), md
# Change metadata
assert gdal.SetFileMetadata(
subpath + "/test.txt", {"x-ms-meta-FOO": "BAR"}, "METADATA"
)
md = gdal.GetFileMetadata(subpath + "/test.txt", "METADATA")
assert md["x-ms-meta-FOO"] == "BAR"
# Change tags (doesn't seem to work with Azurite)
if ":10000/devstoreaccount1" not in gdal.GetConfigOption(
"AZURE_STORAGE_CONNECTION_STRING", ""
):
assert gdal.SetFileMetadata(subpath + "/test.txt", {"BAR": "BAZ"}, "TAGS")
md = gdal.GetFileMetadata(subpath + "/test.txt", "TAGS")
assert md["BAR"] == "BAZ"
assert gdal.Rename(subpath + "/test.txt", subpath + "/test2.txt") == 0
f = gdal.VSIFOpenL(subpath + "/test2.txt", "rb")
assert f is not None
data = gdal.VSIFReadL(1, 5, f).decode("utf-8")
assert data == "hello"
gdal.VSIFCloseL(f)
ret = gdal.Unlink(subpath + "/test2.txt")
assert ret >= 0, "Unlink(%s) should not return an error" % (
subpath + "/test2.txt"
)
ret = gdal.Rmdir(subpath)
assert ret >= 0, "Rmdir(%s) should not return an error" % subpath
return
f = open_for_read("/vsiaz/" + az_resource)
assert f is not None
ret = gdal.VSIFReadL(1, 1, f)
gdal.VSIFCloseL(f)
assert len(ret) == 1
# Same with /vsiaz_streaming/
f = open_for_read("/vsiaz_streaming/" + az_resource)
assert f is not None
ret = gdal.VSIFReadL(1, 1, f)
gdal.VSIFCloseL(f)
assert len(ret) == 1
if False: # pylint: disable=using-constant-test
# we actually try to read at read() time and bSetError = false
# Invalid bucket : "The specified bucket does not exist"
gdal.ErrorReset()
f = open_for_read("/vsiaz/not_existing_bucket/foo")
with gdaltest.error_handler():
gdal.VSIFReadL(1, 1, f)
gdal.VSIFCloseL(f)
assert gdal.VSIGetLastErrorMsg() != ""
# Invalid resource
gdal.ErrorReset()
f = open_for_read("/vsiaz_streaming/" + az_resource + "/invalid_resource.baz")
assert f is None, gdal.VSIGetLastErrorMsg()
# Test GetSignedURL()
signed_url = gdal.GetSignedURL("/vsiaz/" + az_resource)
f = open_for_read("/vsicurl_streaming/" + signed_url)
assert f is not None
ret = gdal.VSIFReadL(1, 1, f)
gdal.VSIFCloseL(f)
assert len(ret) == 1