def get_image_from_pdf(document, node=None, preset_id=None):
ext = file_formats.PNG
with tempfile.NamedTemporaryFile(suffix=".{}".format(ext)) as tempf:
tempf.close()
create_image_from_pdf_page(document.file_on_disk.name, tempf.name)
with open(tempf.name, 'rb') as tf:
return create_file_from_contents(tf.read(), ext=ext, node=node, preset_id=preset_id)
def get_image_from_pdf(document, node=None, preset_id=None):
ext = file_formats.PNG
with tempfile.NamedTemporaryFile(suffix=".{}".format(ext)) as tempf:
tempf.close()
create_image_from_pdf_page(document.file_on_disk.name, tempf.name)
with open(tempf.name, 'rb') as tf:
return create_file_from_contents(tf.read(), ext=ext, node=node, preset_id=preset_id)
def get_image_from_pdf(document, node=None, preset_id=None):
ext = file_formats.PNG
orig_ext = document.file_format.extension
with tempfile.NamedTemporaryFile(suffix=".{}".format(ext)) as tempf, tempfile.NamedTemporaryFile(suffix=".{}".format(orig_ext)) as localtempf:
# localtempf is where we store the file in case it's in object storage
shutil.copyfileobj(document.file_on_disk, localtempf)
tempf.close()
localtempf.flush()
create_image_from_pdf_page(localtempf.name, tempf.name)
with open(tempf.name, 'rb') as tf:
return create_file_from_contents(tf.read(), ext=ext, node=node, preset_id=preset_id, uploaded_by=document.uploaded_by)
def get_image_from_pdf(document, node=None, preset_id=None):
ext = file_formats.PNG
orig_ext = document.file_format.extension
with tempfile.NamedTemporaryFile(suffix=".{}".format(ext)) as tempf, tempfile.NamedTemporaryFile(suffix=".{}".format(orig_ext)) as localtempf:
# localtempf is where we store the file in case it's in object storage
shutil.copyfileobj(document.file_on_disk, localtempf)
tempf.close()
localtempf.flush()
create_image_from_pdf_page(localtempf.name, tempf.name)
with open(tempf.name, 'rb') as tf:
return create_file_from_contents(tf.read(), ext=ext, node=node, preset_id=preset_id, uploaded_by=document.uploaded_by)
def extractor_fun(self, fpath_in, thumbpath_out, **kwargs):
create_image_from_pdf_page(fpath_in, thumbpath_out, **kwargs)
def test_generates_16_9_thumbnail(self, tmpdir):
input_file = os.path.join(files_dir, "generate_thumbnail", "sample.pdf")
assert os.path.exists(input_file)
output_file = tmpdir.join("pdf_16_9.png").strpath
images.create_image_from_pdf_page(input_file, output_file, crop='smart')
self.check_16_9_format(output_file)
def test_generates_thumbnail(self, tmpdir):
input_file = os.path.join(files_dir, "generate_thumbnail", "sample.pdf")
assert os.path.exists(input_file)
output_file = tmpdir.join("pdf.png").strpath
images.create_image_from_pdf_page(input_file, output_file)
self.check_thumbnail_generated(output_file)
def test_raises_for_invalid_pdf(self, tmpdir, bad_pdf_file):
input_file = bad_pdf_file.name
output_file = tmpdir.join('thumbnail.png').strpath
with pytest.raises(images.ThumbnailGenerationError):
images.create_image_from_pdf_page(input_file, output_file)
def test_raises_for_missing_file(self, tmpdir):
input_file = os.path.join(files_dir, 'file_that_does_not_exist.pdf')
assert not os.path.exists(input_file)
output_file = tmpdir.join('thumbnail.png').strpath
with pytest.raises(images.ThumbnailGenerationError):
images.create_image_from_pdf_page(input_file, output_file)
