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< h1 > Source code for markdownx.forms< / h1 > < div class = "highlight" > < pre >
< span > < / span > < span class = "c1" > # Python internal library.< / span >
< span class = "kn" > from< / span > < span class = "nn" > os< / span > < span class = "k" > import< / span > < span class = "n" > path< / span > < span class = "p" > ,< / span > < span class = "n" > SEEK_END< / span >
< span class = "kn" > from< / span > < span class = "nn" > uuid< / span > < span class = "k" > import< / span > < span class = "n" > uuid4< / span >
< span class = "kn" > from< / span > < span class = "nn" > collections< / span > < span class = "k" > import< / span > < span class = "n" > namedtuple< / span >
< span class = "c1" > # Django library.< / span >
< span class = "kn" > from< / span > < span class = "nn" > django< / span > < span class = "k" > import< / span > < span class = "n" > forms< / span >
< span class = "kn" > from< / span > < span class = "nn" > django.utils.six< / span > < span class = "k" > import< / span > < span class = "n" > BytesIO< / span >
< span class = "kn" > from< / span > < span class = "nn" > django.core.files.storage< / span > < span class = "k" > import< / span > < span class = "n" > default_storage< / span >
< span class = "kn" > from< / span > < span class = "nn" > django.core.files.uploadedfile< / span > < span class = "k" > import< / span > < span class = "n" > InMemoryUploadedFile< / span >
< span class = "c1" > # Internal.< / span >
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< span class = "kn" > from< / span > < span class = "nn" > .utils< / span > < span class = "k" > import< / span > < span class = "n" > scale_and_crop< / span > < span class = "p" > ,< / span > < span class = "n" > xml_has_javascript< / span >
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< span class = "kn" > from< / span > < span class = "nn" > .exceptions< / span > < span class = "k" > import< / span > < span class = "n" > MarkdownxImageUploadError< / span >
< span class = "kn" > from< / span > < span class = "nn" > .settings< / span > < span class = "k" > import< / span > < span class = "p" > (< / span >
< span class = "n" > MARKDOWNX_IMAGE_MAX_SIZE< / span > < span class = "p" > ,< / span >
< span class = "n" > MARKDOWNX_MEDIA_PATH< / span > < span class = "p" > ,< / span >
< span class = "n" > MARKDOWNX_UPLOAD_CONTENT_TYPES< / span > < span class = "p" > ,< / span >
< span class = "n" > MARKDOWNX_UPLOAD_MAX_SIZE< / span > < span class = "p" > ,< / span >
< span class = "n" > MARKDOWNX_SVG_JAVASCRIPT_PROTECTION< / span >
< span class = "p" > )< / span >
< div class = "viewcode-block" id = "ImageForm" > < a class = "viewcode-back" href = "../../markdownx/docs/forms.html#markdownx.forms.ImageForm" > [docs]< / a > < span class = "k" > class< / span > < span class = "nc" > ImageForm< / span > < span class = "p" > (< / span > < span class = "n" > forms< / span > < span class = "o" > .< / span > < span class = "n" > Form< / span > < span class = "p" > ):< / span >
< span class = "sd" > " " " < / span >
< span class = "sd" > Used for the handling of images uploaded using the editor through :guilabel:`AJAX`.< / span >
< span class = "sd" > " " " < / span >
< span class = "n" > image< / span > < span class = "o" > =< / span > < span class = "n" > forms< / span > < span class = "o" > .< / span > < span class = "n" > FileField< / span > < span class = "p" > ()< / span >
< span class = "c1" > # Separately defined as it needs to be< / span >
< span class = "c1" > # processed a text file rather than image.< / span >
< span class = "n" > _SVG_TYPE< / span > < span class = "o" > =< / span > < span class = "s1" > ' image/svg+xml' < / span >
< div class = "viewcode-block" id = "ImageForm.save" > < a class = "viewcode-back" href = "../../markdownx/docs/forms.html#markdownx.forms.ImageForm.save" > [docs]< / a > < span class = "k" > def< / span > < span class = "nf" > save< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > ,< / span > < span class = "n" > commit< / span > < span class = "o" > =< / span > < span class = "kc" > True< / span > < span class = "p" > ):< / span >
< span class = "sd" > " " " < / span >
< span class = "sd" > Saves the uploaded image in the designated location.< / span >
< span class = "sd" > If image type is not SVG, a byteIO of image content_type is created and< / span >
< span class = "sd" > subsequently save; otherwise, the SVG is saved in its existing ``charset``< / span >
< span class = "sd" > as an ``image/svg+xml``.< / span >
< span class = "sd" > *Note*: The dimension of image files (excluding SVG) are set using ``PIL``.< / span >
< span class = "sd" > :param commit: If ``True``, the file is saved to the disk;< / span >
< span class = "sd" > otherwise, it is held in the memory.< / span >
< span class = "sd" > :type commit: bool< / span >
< span class = "sd" > :return: An instance of saved image if ``commit is True``,< / span >
< span class = "sd" > else ``namedtuple(path, image)``.< / span >
< span class = "sd" > :rtype: bool, namedtuple< / span >
< span class = "sd" > " " " < / span >
< span class = "n" > image< / span > < span class = "o" > =< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > files< / span > < span class = "o" > .< / span > < span class = "n" > get< / span > < span class = "p" > (< / span > < span class = "s1" > ' image' < / span > < span class = "p" > )< / span >
< span class = "n" > content_type< / span > < span class = "o" > =< / span > < span class = "n" > image< / span > < span class = "o" > .< / span > < span class = "n" > content_type< / span >
< span class = "n" > file_name< / span > < span class = "o" > =< / span > < span class = "n" > image< / span > < span class = "o" > .< / span > < span class = "n" > name< / span >
< span class = "n" > image_extension< / span > < span class = "o" > =< / span > < span class = "n" > content_type< / span > < span class = "o" > .< / span > < span class = "n" > split< / span > < span class = "p" > (< / span > < span class = "s1" > ' /' < / span > < span class = "p" > )[< / span > < span class = "o" > -< / span > < span class = "mi" > 1< / span > < span class = "p" > ]< / span > < span class = "o" > .< / span > < span class = "n" > upper< / span > < span class = "p" > ()< / span >
< span class = "n" > image_size< / span > < span class = "o" > =< / span > < span class = "nb" > getattr< / span > < span class = "p" > (< / span > < span class = "n" > image< / span > < span class = "p" > ,< / span > < span class = "s1" > ' _size' < / span > < span class = "p" > )< / span >
< span class = "k" > if< / span > < span class = "n" > content_type< / span > < span class = "o" > .< / span > < span class = "n" > lower< / span > < span class = "p" > ()< / span > < span class = "o" > !=< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _SVG_TYPE< / span > < span class = "p" > :< / span >
< span class = "c1" > # Processing the raster graphic image.< / span >
< span class = "c1" > # Note that vector graphics in SVG format< / span >
< span class = "c1" > # do not require additional processing and< / span >
< span class = "c1" > # may be stored as uploaded.< / span >
< span class = "n" > image< / span > < span class = "o" > =< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _process_raster< / span > < span class = "p" > (< / span > < span class = "n" > image< / span > < span class = "p" > ,< / span > < span class = "n" > image_extension< / span > < span class = "p" > )< / span >
< span class = "n" > image_size< / span > < span class = "o" > =< / span > < span class = "n" > image< / span > < span class = "o" > .< / span > < span class = "n" > tell< / span > < span class = "p" > ()< / span >
< span class = "c1" > # Processed file (or the actual file in the case of SVG) is now< / span >
< span class = "c1" > # saved in the memory as a Django object.< / span >
< span class = "n" > uploaded_image< / span > < span class = "o" > =< / span > < span class = "n" > InMemoryUploadedFile< / span > < span class = "p" > (< / span >
< span class = "n" > file< / span > < span class = "o" > =< / span > < span class = "n" > image< / span > < span class = "p" > ,< / span >
< span class = "n" > field_name< / span > < span class = "o" > =< / span > < span class = "kc" > None< / span > < span class = "p" > ,< / span >
< span class = "n" > name< / span > < span class = "o" > =< / span > < span class = "n" > file_name< / span > < span class = "p" > ,< / span >
< span class = "n" > content_type< / span > < span class = "o" > =< / span > < span class = "n" > content_type< / span > < span class = "p" > ,< / span >
< span class = "n" > size< / span > < span class = "o" > =< / span > < span class = "n" > image_size< / span > < span class = "p" > ,< / span >
< span class = "n" > charset< / span > < span class = "o" > =< / span > < span class = "kc" > None< / span >
< span class = "p" > )< / span >
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< span class = "k" > if< / span > < span class = "p" > (< / span > < span class = "n" > content_type< / span > < span class = "o" > .< / span > < span class = "n" > lower< / span > < span class = "p" > ()< / span > < span class = "o" > ==< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _SVG_TYPE< / span >
< span class = "ow" > and< / span > < span class = "n" > MARKDOWNX_SVG_JAVASCRIPT_PROTECTION< / span >
< span class = "ow" > and< / span > < span class = "n" > xml_has_javascript< / span > < span class = "p" > (< / span > < span class = "n" > uploaded_image< / span > < span class = "o" > .< / span > < span class = "n" > read< / span > < span class = "p" > ())):< / span >
< span class = "k" > raise< / span > < span class = "n" > MarkdownxImageUploadError< / span > < span class = "p" > (< / span >
< span class = "s1" > ' Failed security monitoring: SVG file contains JavaScript.' < / span >
< span class = "p" > )< / span >
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< span class = "k" > return< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _save< / span > < span class = "p" > (< / span > < span class = "n" > uploaded_image< / span > < span class = "p" > ,< / span > < span class = "n" > file_name< / span > < span class = "p" > ,< / span > < span class = "n" > commit< / span > < span class = "p" > )< / span > < / div >
< span class = "k" > def< / span > < span class = "nf" > _save< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > ,< / span > < span class = "n" > image< / span > < span class = "p" > ,< / span > < span class = "n" > file_name< / span > < span class = "p" > ,< / span > < span class = "n" > commit< / span > < span class = "p" > ):< / span >
< span class = "sd" > " " " < / span >
< span class = "sd" > Final saving process, called internally after processing tasks are complete.< / span >
< span class = "sd" > :param image: Prepared image< / span >
< span class = "sd" > :type image: django.core.files.uploadedfile.InMemoryUploadedFile< / span >
< span class = "sd" > :param file_name: Name of the file using which the image is to be saved.< / span >
< span class = "sd" > :type file_name: str< / span >
< span class = "sd" > :param commit: If ``True``, the image is saved onto the disk.< / span >
< span class = "sd" > :type commit: bool< / span >
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< span class = "sd" > :return: URL of the uploaded image ``commit=True``, otherwise a namedtuple < / span >
< span class = "sd" > of ``(path, image)`` where ``path`` is the absolute path generated < / span >
< span class = "sd" > for saving the file, and ``image`` is the prepared image.< / span >
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< span class = "sd" > :rtype: str, namedtuple< / span >
< span class = "sd" > " " " < / span >
< span class = "c1" > # Defining a universally unique name for the file< / span >
< span class = "c1" > # to be saved on the disk.< / span >
< span class = "n" > unique_file_name< / span > < span class = "o" > =< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > get_unique_file_name< / span > < span class = "p" > (< / span > < span class = "n" > file_name< / span > < span class = "p" > )< / span >
< span class = "n" > full_path< / span > < span class = "o" > =< / span > < span class = "n" > path< / span > < span class = "o" > .< / span > < span class = "n" > join< / span > < span class = "p" > (< / span > < span class = "n" > MARKDOWNX_MEDIA_PATH< / span > < span class = "p" > ,< / span > < span class = "n" > unique_file_name< / span > < span class = "p" > )< / span >
< span class = "k" > if< / span > < span class = "n" > commit< / span > < span class = "p" > :< / span >
< span class = "n" > default_storage< / span > < span class = "o" > .< / span > < span class = "n" > save< / span > < span class = "p" > (< / span > < span class = "n" > full_path< / span > < span class = "p" > ,< / span > < span class = "n" > image< / span > < span class = "p" > )< / span >
< span class = "k" > return< / span > < span class = "n" > default_storage< / span > < span class = "o" > .< / span > < span class = "n" > url< / span > < span class = "p" > (< / span > < span class = "n" > full_path< / span > < span class = "p" > )< / span >
< span class = "c1" > # If `commit is False`, return the path and in-memory image.< / span >
< span class = "n" > image_data< / span > < span class = "o" > =< / span > < span class = "n" > namedtuple< / span > < span class = "p" > (< / span > < span class = "s1" > ' image_data' < / span > < span class = "p" > ,< / span > < span class = "p" > [< / span > < span class = "s1" > ' path' < / span > < span class = "p" > ,< / span > < span class = "s1" > ' image' < / span > < span class = "p" > ])< / span >
< span class = "k" > return< / span > < span class = "n" > image_data< / span > < span class = "p" > (< / span > < span class = "n" > path< / span > < span class = "o" > =< / span > < span class = "n" > full_path< / span > < span class = "p" > ,< / span > < span class = "n" > image< / span > < span class = "o" > =< / span > < span class = "n" > image< / span > < span class = "p" > )< / span >
< span class = "nd" > @staticmethod< / span >
< span class = "k" > def< / span > < span class = "nf" > _process_raster< / span > < span class = "p" > (< / span > < span class = "n" > image< / span > < span class = "p" > ,< / span > < span class = "n" > extension< / span > < span class = "p" > ):< / span >
< span class = "sd" > " " " < / span >
< span class = "sd" > Processing of raster graphic image using Python Imaging Library (PIL).< / span >
< span class = "sd" > This is where raster graphics are processed to the specifications< / span >
< span class = "sd" > as defined in ``settings.py``.< / span >
< span class = "sd" > *Note*: The file needs to be uploaded and saved temporarily in the< / span >
< span class = "sd" > memory to enable processing tasks using Python Imaging Library (PIL)< / span >
< span class = "sd" > to take place and subsequently retained until written onto the disk.< / span >
< span class = "sd" > :param image: Non-SVG image as processed by Django.< / span >
< span class = "sd" > :type image: django.forms.BaseForm.file< / span >
< span class = "sd" > :param extension: Image extension (e.g.: png, jpg, gif)< / span >
< span class = "sd" > :type extension: str< / span >
< span class = "sd" > :return: The image object ready to be written into a file.< / span >
< span class = "sd" > :rtype: BytesIO< / span >
< span class = "sd" > " " " < / span >
< span class = "n" > thumb_io< / span > < span class = "o" > =< / span > < span class = "n" > BytesIO< / span > < span class = "p" > ()< / span >
< span class = "n" > preped_image< / span > < span class = "o" > =< / span > < span class = "n" > scale_and_crop< / span > < span class = "p" > (< / span > < span class = "n" > image< / span > < span class = "p" > ,< / span > < span class = "o" > **< / span > < span class = "n" > MARKDOWNX_IMAGE_MAX_SIZE< / span > < span class = "p" > )< / span >
< span class = "n" > preped_image< / span > < span class = "o" > .< / span > < span class = "n" > save< / span > < span class = "p" > (< / span > < span class = "n" > thumb_io< / span > < span class = "p" > ,< / span > < span class = "n" > extension< / span > < span class = "p" > )< / span >
< span class = "n" > thumb_io< / span > < span class = "o" > .< / span > < span class = "n" > seek< / span > < span class = "p" > (< / span > < span class = "mi" > 0< / span > < span class = "p" > ,< / span > < span class = "n" > SEEK_END< / span > < span class = "p" > )< / span >
< span class = "k" > return< / span > < span class = "n" > thumb_io< / span >
< span class = "nd" > @staticmethod< / span >
< div class = "viewcode-block" id = "ImageForm.get_unique_file_name" > < a class = "viewcode-back" href = "../../markdownx/docs/forms.html#markdownx.forms.ImageForm.get_unique_file_name" > [docs]< / a > < span class = "k" > def< / span > < span class = "nf" > get_unique_file_name< / span > < span class = "p" > (< / span > < span class = "n" > file_name< / span > < span class = "p" > ):< / span >
< span class = "sd" > " " " < / span >
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< span class = "sd" > Generates a universally unique ID using Python ``UUID`` and attaches the < / span >
< span class = "sd" > extension of file name to it.< / span >
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< span class = "sd" > :param file_name: Name of the uploaded file, including the extension.< / span >
< span class = "sd" > :type file_name: str< / span >
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< span class = "sd" > :return: Universally unique ID, ending with the extension extracted < / span >
< span class = "sd" > from ``file_name``.< / span >
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< span class = "sd" > :rtype: str< / span >
< span class = "sd" > " " " < / span >
< span class = "n" > extension< / span > < span class = "o" > =< / span > < span class = "mi" > 1< / span >
< span class = "n" > extension_dot_index< / span > < span class = "o" > =< / span > < span class = "mi" > 1< / span >
< span class = "n" > file_name< / span > < span class = "o" > =< / span > < span class = "s2" > " < / span > < span class = "si" > {unique_name}< / span > < span class = "s2" > .< / span > < span class = "si" > {extension}< / span > < span class = "s2" > " < / span > < span class = "o" > .< / span > < span class = "n" > format< / span > < span class = "p" > (< / span >
< span class = "n" > unique_name< / span > < span class = "o" > =< / span > < span class = "n" > uuid4< / span > < span class = "p" > (),< / span >
< span class = "n" > extension< / span > < span class = "o" > =< / span > < span class = "n" > path< / span > < span class = "o" > .< / span > < span class = "n" > splitext< / span > < span class = "p" > (< / span > < span class = "n" > file_name< / span > < span class = "p" > )[< / span > < span class = "n" > extension< / span > < span class = "p" > ][< / span > < span class = "n" > extension_dot_index< / span > < span class = "p" > :]< / span >
< span class = "p" > )< / span >
< span class = "k" > return< / span > < span class = "n" > file_name< / span > < / div >
< div class = "viewcode-block" id = "ImageForm.clean" > < a class = "viewcode-back" href = "../../markdownx/docs/forms.html#markdownx.forms.ImageForm.clean" > [docs]< / a > < span class = "k" > def< / span > < span class = "nf" > clean< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > ):< / span >
< span class = "sd" > " " " < / span >
< span class = "sd" > Checks the upload against allowed extensions and maximum size.< / span >
< span class = "sd" > :return: Upload< / span >
< span class = "sd" > " " " < / span >
< span class = "n" > upload< / span > < span class = "o" > =< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > cleaned_data< / span > < span class = "o" > .< / span > < span class = "n" > get< / span > < span class = "p" > (< / span > < span class = "s1" > ' image' < / span > < span class = "p" > )< / span >
< span class = "c1" > # -----------------------------------------------< / span >
< span class = "c1" > # See comments in `self._error_templates` for< / span >
< span class = "c1" > # additional information on each error.< / span >
< span class = "c1" > # -----------------------------------------------< / span >
< span class = "k" > if< / span > < span class = "ow" > not< / span > < span class = "n" > upload< / span > < span class = "p" > :< / span >
< span class = "k" > raise< / span > < span class = "n" > MarkdownxImageUploadError< / span > < span class = "o" > .< / span > < span class = "n" > not_uploaded< / span > < span class = "p" > ()< / span >
< span class = "n" > content_type< / span > < span class = "o" > =< / span > < span class = "n" > upload< / span > < span class = "o" > .< / span > < span class = "n" > content_type< / span >
< span class = "n" > file_size< / span > < span class = "o" > =< / span > < span class = "nb" > getattr< / span > < span class = "p" > (< / span > < span class = "n" > upload< / span > < span class = "p" > ,< / span > < span class = "s1" > ' _size' < / span > < span class = "p" > )< / span >
< span class = "k" > if< / span > < span class = "n" > content_type< / span > < span class = "ow" > not< / span > < span class = "ow" > in< / span > < span class = "n" > MARKDOWNX_UPLOAD_CONTENT_TYPES< / span > < span class = "p" > :< / span >
< span class = "k" > raise< / span > < span class = "n" > MarkdownxImageUploadError< / span > < span class = "o" > .< / span > < span class = "n" > unsupported_format< / span > < span class = "p" > ()< / span >
< span class = "k" > elif< / span > < span class = "n" > file_size< / span > < span class = "o" > > < / span > < span class = "n" > MARKDOWNX_UPLOAD_MAX_SIZE< / span > < span class = "p" > :< / span >
< span class = "k" > raise< / span > < span class = "n" > MarkdownxImageUploadError< / span > < span class = "o" > .< / span > < span class = "n" > invalid_size< / span > < span class = "p" > (< / span >
< span class = "n" > current< / span > < span class = "o" > =< / span > < span class = "n" > file_size< / span > < span class = "p" > ,< / span >
< span class = "n" > expected< / span > < span class = "o" > =< / span > < span class = "n" > MARKDOWNX_UPLOAD_MAX_SIZE< / span >
< span class = "p" > )< / span >
< span class = "k" > return< / span > < span class = "n" > upload< / span > < / div > < / div >
< / pre > < / div >
< / div >
< div class = "articleComments" >
< / div >
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