memegen.routes.image.get_with_text_jpeg() - Code Metrics - jacebrowning/memegen - Measure and Improve Code Quality continuously with Scrutinizer

memegen.routes.image.get_with_text_jpeg() A
last analyzed 2020-05-04 23:40 UTC

↳ Parent: memegen.routes.image

Complexity

Conditions

Size

Total Lines	3
Code Lines	3

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	2
CRAP Score	1

Importance

Changes

Metric	Value
cc	1
eloc	3
nop	2
dl	0
loc	3
rs	10
c	0
b	0
f	0
ccs	2
cts	2
cp	1
crap	1

from flask import Blueprint, current_app, request, redirect

from webargs import fields, flaskparser

import log

from .. import domain

from ._cache import Cache
from ._utils import route, track, display


blueprint = Blueprint('image', __name__)
cache_filtered = Cache()
cache_unfiltered = Cache(filtered=False)

PLACEHOLDER = "https://raw.githubusercontent.com/jacebrowning/memegen/master/memegen/static/images/missing.png"
OPTIONS = {
    'alt': fields.Str(missing=None),
    'font': fields.Str(missing=None),
    'preview': fields.Bool(missing=False),
    'share': fields.Bool(missing=False),
    'width': fields.Int(missing=None),
    'height': fields.Int(missing=None),
    'watermark': fields.Str(missing=None),
}


@blueprint.route("/latest.jpg")
@blueprint.route("/latest<int:index>.jpg")
@flaskparser.use_kwargs({'filtered': fields.Bool(missing=True)})
def get_latest(index=1, filtered=True):
    cache = cache_filtered if filtered else cache_unfiltered
    kwargs = cache.get(index - 1)

    if kwargs:
        kwargs['preview'] = True
    else:
        kwargs['key'] = 'custom'
        kwargs['path'] = "your_meme/goes_here"
        kwargs['alt'] = PLACEHOLDER

    return redirect(route('.get', _external=True, **kwargs))


@blueprint.route("/<key>.jpg")
@flaskparser.use_kwargs(OPTIONS)
def get_without_text(key, **options):
    options.pop('preview')
    options.pop('share')

    template = current_app.template_service.find(key)
    text = domain.Text(template.default_path)

    return redirect(route('.get', key=key, path=text.path, **options))


@blueprint.route("/<key>.jpeg")
def get_without_text_jpeg(key):
    return redirect(route('.get_without_text', key=key))


@blueprint.route("/<key>/<path:path>.jpg", endpoint='get')
@flaskparser.use_kwargs(OPTIONS)
def get_with_text(key, path, alt, font, watermark, preview, share, **size):
    assert len(size) == 2
    options = dict(key=key, path=path,
                   alt=alt, font=font, watermark=watermark, **size)
    if preview:
        options['preview'] = True
    if share:
        options['share'] = True

    text = domain.Text(path)
    fontfile = current_app.font_service.find(font)

    template = current_app.template_service.find(key, allow_missing=True)
    if template.key != key:
        options['key'] = template.key
        return redirect(route('.get', **options))

    if path != text.path:
        options['path'] = text.path
        return redirect(route('.get', **options))

    if alt and "://memegen.link/" in alt:
        options.pop('alt')
        options['key'] = alt.split('/')[3]
        return redirect(route('.get', **options))

    if alt and "://" in alt and key != 'custom':
        options['key'] = 'custom'
        return redirect(route('.get', **options))

    if alt and template.path == template.get_path(alt, download=False):
        options.pop('alt')
        return redirect(route('.get', **options))

    if font and not fontfile:
        options.pop('font')
        return redirect(route('.get', **options))

    final_watermark, valid = _get_watermark(request, text, watermark, share)
    if not valid:
        options.pop('watermark')
        return redirect(route('.get', **options))

    image = current_app.image_service.create(
        template, text,
        style=PLACEHOLDER if alt == 'none' else alt,
        font=fontfile, size=size, watermark=final_watermark,
    )

    if not preview:
        cache_filtered.add(key=key, path=path, alt=alt, font=font)
        cache_unfiltered.add(key=key, path=path, alt=alt, font=font)
        track(image.text)

    return display(image.text, image.path, share=share)


@blueprint.route("/<key>/<path:path>.jpeg")
def get_with_text_jpeg(key, path):
    return redirect(route('.get', key=key, path=path))


@blueprint.route("/_<code>.jpg")
@flaskparser.use_kwargs(OPTIONS)
def get_encoded(code, alt, font, watermark, preview, share, **size):
    assert len(size) == 2
    options = dict(code=code, font=font, watermark=watermark, **size)
    if share:
        options['share'] = True

    if alt or preview:
        return redirect(route('.get_encoded', **options))

    key, path = current_app.link_service.decode(code)
    template = current_app.template_service.find(key)
    text = domain.Text(path)
    fontfile = current_app.font_service.find(font)

    if font and not fontfile:
        options.pop('font')
        return redirect(route('.get_encoded', **options))

    watermark, valid = _get_watermark(request, text, watermark, share)
    if not valid:
        options.pop('watermark')
        return redirect(route('.get_encoded', **options))

    image = current_app.image_service.create(
        template, text, font=fontfile, size=size, watermark=watermark,
    )

    track(image.text)

    return display(image.text, image.path, share=share)


def _get_watermark(_request, text: domain.Text, watermark: str, share: bool):
    referrer = _request.environ.get('HTTP_REFERER', "").lower()
    agent = _request.environ.get('HTTP_USER_AGENT', "").lower()
    log.debug("Referrer=%r Agent=%r", referrer, agent)

    if not text:
        log.debug(f"Watermark disabled (no text)")

        if watermark:
            return None, False
        else:
            return None, True

    if watermark == 'none':
        if share:
            log.debug("Watermark disabled (share=true)")
            return None, True
        for option in current_app.config['WATERMARK_OPTIONS']:
            for identity in (referrer, agent):
                if option and identity and option in identity:
                    log.debug(f"Watermark disabled ({option} in {identity})")
                    return None, True

        log.warning("Request does not support unmarked images")
        return None, False

    if watermark and watermark not in current_app.config['WATERMARK_OPTIONS']:
        log.warning("Unsupported custom watermark: %r", watermark)
        return watermark, False

    if watermark:
        log.debug("Using custom watermark: %r", watermark)
        return watermark, True

    default = current_app.config['WATERMARK_OPTIONS'][0]
    log.debug("Using default watermark: %r", default)
    return default, True


1	1	from flask import Blueprint, current_app, request, redirect
		0 ignored issues – show introduced 2017-11-04 06:35 UTC by Report Bug Copy Issue Report Unable to import 'flask' Loading history...
2		from webargs import fields, flaskparser
		0 ignored issues – show introduced 2017-11-04 06:35 UTC by Report Bug Copy Issue Report Unable to import 'webargs' Loading history...
3	1	import log
4	1
5		from .. import domain
6	1
7		from ._cache import Cache
8	1	from ._utils import route, track, display
9	1
10
11		blueprint = Blueprint('image', __name__)
12	1	cache_filtered = Cache()
13	1	cache_unfiltered = Cache(filtered=False)
14	1
15	1	PLACEHOLDER = "https://raw.githubusercontent.com/jacebrowning/memegen/master/memegen/static/images/missing.png"
16		OPTIONS = {
17	1	'alt': fields.Str(missing=None),
18		'font': fields.Str(missing=None),
19		'preview': fields.Bool(missing=False),
20		'share': fields.Bool(missing=False),
21		'width': fields.Int(missing=None),
22		'height': fields.Int(missing=None),
23		'watermark': fields.Str(missing=None),
24		}
25
26
27		@blueprint.route("/latest.jpg")
28	1	@blueprint.route("/latest<int:index>.jpg")
29	1	@flaskparser.use_kwargs({'filtered': fields.Bool(missing=True)})
30	1	def get_latest(index=1, filtered=True):
31	1	cache = cache_filtered if filtered else cache_unfiltered
32	1	kwargs = cache.get(index - 1)
33	1
34		if kwargs:
35	1	kwargs['preview'] = True
36	1	else:
37		kwargs['key'] = 'custom'
38	1	kwargs['path'] = "your_meme/goes_here"
39	1	kwargs['alt'] = PLACEHOLDER
40	1
41		return redirect(route('.get', _external=True, **kwargs))
42	1
43
44		@blueprint.route("/<key>.jpg")
45	1	@flaskparser.use_kwargs(OPTIONS)
46	1	def get_without_text(key, **options):
47		options.pop('preview')
48	1	options.pop('share')
49	1
50		template = current_app.template_service.find(key)
51	1	text = domain.Text(template.default_path)
52	1
53		return redirect(route('.get', key=key, path=text.path, **options))
54	1
55
56		@blueprint.route("/<key>.jpeg")
57	1	def get_without_text_jpeg(key):
58		return redirect(route('.get_without_text', key=key))
59	1
60
61		@blueprint.route("/<key>/<path:path>.jpg", endpoint='get')
62	1	@flaskparser.use_kwargs(OPTIONS)
63	1	def get_with_text(key, path, alt, font, watermark, preview, share, **size):
64		assert len(size) == 2
65	1	options = dict(key=key, path=path,
66		alt=alt, font=font, watermark=watermark, **size)
67	1	if preview:
68	1	options['preview'] = True
69	1	if share:
70		options['share'] = True
71
72	1	text = domain.Text(path)
73	1	fontfile = current_app.font_service.find(font)
74
75	1	template = current_app.template_service.find(key, allow_missing=True)
76	1	if template.key != key:
77	1	options['key'] = template.key
78	1	return redirect(route('.get', **options))
79
80	1	if path != text.path:
81	1	options['path'] = text.path
82	1	return redirect(route('.get', **options))
83
84	1	if alt and "://memegen.link/" in alt:
85	1	options.pop('alt')
86	1	options['key'] = alt.split('/')[3]
87		return redirect(route('.get', **options))
88	1
89	1	if alt and "://" in alt and key != 'custom':
90	1	options['key'] = 'custom'
91		return redirect(route('.get', **options))
92	1
93	1	if alt and template.path == template.get_path(alt, download=False):
94	1	options.pop('alt')
95	1	return redirect(route('.get', **options))
96
97	1	if font and not fontfile:
98		options.pop('font')
99		return redirect(route('.get', **options))
100
101		final_watermark, valid = _get_watermark(request, text, watermark, share)
102	1	if not valid:
103	1	options.pop('watermark')
104	1	return redirect(route('.get', **options))
105	1
106		image = current_app.image_service.create(
107	1	template, text,
108		style=PLACEHOLDER if alt == 'none' else alt,
109		font=fontfile, size=size, watermark=final_watermark,
110	1	)
111
112	1	if not preview:
113		cache_filtered.add(key=key, path=path, alt=alt, font=font)
114		cache_unfiltered.add(key=key, path=path, alt=alt, font=font)
115	1	track(image.text)
116
117		return display(image.text, image.path, share=share)
118	1
119	1
120	1	@blueprint.route("/<key>/<path:path>.jpeg")
121	1	def get_with_text_jpeg(key, path):
122		return redirect(route('.get', key=key, path=path))
123	1
124
125	1	@blueprint.route("/_<code>.jpg")
126		@flaskparser.use_kwargs(OPTIONS)
127		def get_encoded(code, alt, font, watermark, preview, share, **size):
128	1	assert len(size) == 2
129	1	options = dict(code=code, font=font, watermark=watermark, **size)
130	1	if share:
131	1	options['share'] = True
132
133	1	if alt or preview:
134	1	return redirect(route('.get_encoded', **options))
135	1
136	1	key, path = current_app.link_service.decode(code)
137	1	template = current_app.template_service.find(key)
138	1	text = domain.Text(path)
139		fontfile = current_app.font_service.find(font)
140
141		if font and not fontfile:
142	1	options.pop('font')
143	1	return redirect(route('.get_encoded', **options))
144	1
145		watermark, valid = _get_watermark(request, text, watermark, share)
146	1	if not valid:
147	1	options.pop('watermark')
148	1	return redirect(route('.get_encoded', **options))
149
150	1	image = current_app.image_service.create(
151	1	template, text, font=fontfile, size=size, watermark=watermark,
152	1	)
153
154		track(image.text)
155
156		return display(image.text, image.path, share=share)
157
158
159		def _get_watermark(_request, text: domain.Text, watermark: str, share: bool):
160		referrer = _request.environ.get('HTTP_REFERER', "").lower()
161		agent = _request.environ.get('HTTP_USER_AGENT', "").lower()
162		log.debug("Referrer=%r Agent=%r", referrer, agent)
163
164		if not text:
165		log.debug(f"Watermark disabled (no text)")
		0 ignored issues – show introduced 2020-05-03 20:37 UTC by Report Bug Copy Issue Report Using an f-string that does not have any interpolated variables Loading history...
166		if watermark:
167		return None, False
168		else:
169		return None, True
170
171		if watermark == 'none':
172		if share:
173		log.debug("Watermark disabled (share=true)")
174		return None, True
175		for option in current_app.config['WATERMARK_OPTIONS']:
176		for identity in (referrer, agent):
177		if option and identity and option in identity:
178		log.debug(f"Watermark disabled ({option} in {identity})")
179		return None, True
180
181		log.warning("Request does not support unmarked images")
182		return None, False
183
184		if watermark and watermark not in current_app.config['WATERMARK_OPTIONS']:
185		log.warning("Unsupported custom watermark: %r", watermark)
186		return watermark, False
187
188		if watermark:
189		log.debug("Using custom watermark: %r", watermark)
190		return watermark, True
191
192		default = current_app.config['WATERMARK_OPTIONS'][0]
193		log.debug("Using default watermark: %r", default)
194		return default, True
195

jacebrowning / memegen

memegen.routes.image.get_with_text_jpeg() A last analyzed 2020-05-04 23:40 UTC

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memegen.routes.image.get_with_text_jpeg() A
last analyzed 2020-05-04 23:40 UTC