Exemplo n.º 1
0
def get_bitmap_by_id(imageid):
    # select image with matching id and return 404 if no such image found
    image = Image.select().where(Image.id == imageid)
    if image.count() == 0:
        return json.dumps({'message': 'No image with matching ID found!'}), 404
    # forward request to image source using proxy
    return proxy.stream(request, 'GET', BASE_URL_DATASET + image[0].src)
Exemplo n.º 2
0
def title(title_id):
    """
    Render title (grid of page thumbnails).
    """

    # Get title information
    try:
        volume = Volume.get(Volume.id == title_id)
    except Volume.DoesNotExist:
        render_template("error.html",
                        response="Volume " + title_id + " does not exist")

    # Get list of images for this title
    thumbs = Image.select(
        Image,
        Volume).join(Volume).where(Volume.id == title_id).order_by(Image.page)

    # Get list of tags for this title
    tags = Tag.select(Tag, TagRelation,
                      Volume).join(TagRelation).join(Volume).where(
                          Volume.id == title_id).order_by(Tag.name)

    # pass list of thumbnails to template
    return render_template("title.html",
                           title=volume.title,
                           id=str(title_id),
                           thumbs=thumbs,
                           tags=tags)
Exemplo n.º 3
0
def get_image_by_id(imageid):
    # select image with matching id and return 404 if no such image found
    image = Image.select().where(Image.id == imageid)
    if image.count() == 0:
        return json.dumps({'message': 'No image with matching ID found!'}), 404
    # wrap image object into JSON and return it
    image_json = {'image': get_image_json_object(image[0])}
    return json.dumps(image_json), 200
Exemplo n.º 4
0
def get_images():
    # get options from request
    # in case of invalid parameters return 400
    try:
        limit = int(request.args.get('limit', default='100'))
        offset = int(request.args.get('offset', default='0'))
    except ValueError:
        return json.dumps({'message': 'Invalid limit or offset passed!'}), 400
    if limit < 1 or limit > 500 or offset < 0:
        return json.dumps({'message': 'Invalid limit or offset passed!'}), 400

    count = Image.select().count()  # pylint: disable=no-value-for-parameter
    image_dict = {'images': [], 'count': count}

    # iterate over all images with given offset and limit
    # wrap them into json and add them to the list
    for image in Image.select().limit(limit).offset(offset):
        image_json = get_image_json_object(image)
        image_dict['images'].append(image_json)
    return json.dumps(image_dict), 200
Exemplo n.º 5
0
def page_image(title_id, page_num):

    """Get archive file corresponding to title ID
    and member file corresponding to page number
    
    Returns extracted image to browser"""

    # Get title information
    try:
        volume = Volume.get(Volume.id == title_id)
    except Volume.DoesNotExist:
        abort(404)

    # Get page information
    try:
        page = Image.select().join(Volume).where((Volume.id == title_id)
                                                 & (Image.page == page_num)).get()
    except Image.DoesNotExist:
        abort(404)

    if volume.filetype == 'zip':

        # TODO: Error check on archive open
        z = zipfile.ZipFile(INPUT_PATH+volume.filename)

        # Get page binary data
        # TODO: Error checking
        zf = z.read(page.filename)

        z.close()

        # Return extracted image to browser
        return send_file(BytesIO(zf), mimetype=page.mimetype)

    elif volume.filetype == 'rar':

        # TODO: Error check on archive open
        rar = rarfile.RarFile(INPUT_PATH+volume.filename)

        # Get page binary data
        # TODO: Error checking
        rardata = rar.read(page.filename)

        rar.close()

    # Return extracted image to browser
        return send_file(BytesIO(rardata), mimetype=page.mimetype)

    # unrecognised archive type
    else:
        abort(500)
Exemplo n.º 6
0
def slide(title_id):
    """Test template for Unslider display, displays Title title_id"""

    # Get title information
    try:
        volume = Volume.get(Volume.id == title_id)
    except Volume.DoesNotExist:
        abort(404)

    # Get list of images for this title
    pages = Image.select(Image, Volume).join(Volume).where(
        Volume.id == title_id).order_by(Image.page)

    # Pass volume and page details to Unslider template
    return render_template("slider.html", title_id=title_id, volume=volume, pages=pages)
Exemplo n.º 7
0
def title(title_id):

    """
    Render title (grid of thumbnails).
    Image 0 as blurred CSS background?
    """

    # Get title information
    try:
        volume = Volume.get(Volume.id == title_id)
    except Volume.DoesNotExist:
        abort(404)

    # Get list of images for this title
    thumbs = Image.select(Image, Volume).join(Volume).where(Volume.id == title_id).order_by(Image.page)

    # Get list of tags for this title
    tags = Tag.select(Tag, TagRelation, Volume).join(TagRelation).join(Volume).where(Volume.id == title_id).order_by(Tag.name)
    
    # pass list of thumbnails to template
    return render_template("title.html", title=volume.title,
                           id=str(title_id), thumbs=thumbs, tags=tags)
Exemplo n.º 8
0
def page_image(title_id, page_num):
    """
    Get archive file corresponding to title ID
    and member file corresponding to page number

    Returns extracted image to browser
    """

    # Get title information
    try:
        volume = Volume.get(Volume.id == title_id)
    except Volume.DoesNotExist:
        return render_template("error.html",
                               response="Volume " + title_id +
                               " does not exist")

    # Get page information
    try:
        page = Image.select().join(Volume).where(
            (Volume.id == title_id)
            & (Image.page == page_num)).get()
    except Image.DoesNotExist:
        return render_template("error.html",
                               response="Image " + page_num +
                               " does not exist")

    if volume.filetype == 'zip':

        # TODO: Error check on archive open
        z = zipfile.ZipFile(INPUT_PATH + volume.filename)

        # Get page binary data
        try:
            zf = z.read(page.filename)
        except zipfile.BadZipFile:
            return render_template("error.html",
                                   response="Bad archive file: " +
                                   volume.filename)

        z.close()

        # Return extracted image to browser
        return send_file(BytesIO(zf), mimetype=page.mimetype)

    elif volume.filetype == 'rar':

        # TODO: Error check on archive open
        rar = rarfile.RarFile(INPUT_PATH + volume.filename)

        # Get page binary data
        # There must be a cleaner way of fixing paths, but pathlib doesn't seem to work
        try:
            rarpath = str(page.filename).replace('\\', '/')
            rardata = rar.read(rarpath)
        except rarfile.NoRarEntry:
            return render_template("error.html",
                                   response="No such file: " + rarpath +
                                   " in " + volume.filename)

        rar.close()

        # Return extracted image to browser
        return send_file(BytesIO(rardata), mimetype=page.mimetype)

    # unrecognised archive type
    else:
        return render_template("error.html",
                               response="Unrecognised archive type: " +
                               volume.filename)