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c37ec602 MT |
1 | #!/usr/bin/python |
2 | ||
abc3bb31 | 3 | import logging |
e8478c5e MT |
4 | import os |
5 | import random | |
c37ec602 MT |
6 | import tornado.web |
7 | ||
8 | from handlers_base import * | |
9 | import backend | |
10 | ||
11 | class IUseImage(BaseHandler): | |
e8478c5e MT |
12 | def get_error_html(self, status_code, **kwargs): |
13 | """ | |
14 | Select a random image from the errors directory | |
15 | and return the content. | |
16 | """ | |
17 | self.set_header("Content-Type", "image/png") | |
18 | ||
19 | template_path = self.application.settings.get("template_path", "") | |
20 | template_path = os.path.join(template_path, "i-use", "errors") | |
21 | ||
22 | images = os.listdir(template_path) | |
23 | if images: | |
24 | image = random.choice(images) | |
25 | image = os.path.join(template_path, image) | |
26 | ||
27 | with open(image, "rb") as f: | |
28 | return f.read() | |
29 | ||
c37ec602 | 30 | def get(self, profile_id, image_id): |
abc3bb31 | 31 | image = None |
b3250465 MT |
32 | # Try to get the image from memcache. If we have a cache miss we |
33 | # build a new one. | |
abc3bb31 MT |
34 | mem_id = "iuse-%s-%s-%s" % (profile_id, image_id, self.locale.code) |
35 | ||
36 | cache = self.get_argument("cache", "true") | |
37 | if cache == "true": | |
38 | image = self.memcached.get(mem_id) | |
39 | ||
40 | if image: | |
41 | logging.debug("Got image from cache for profile: %s" % profile_id) | |
42 | else: | |
43 | logging.info("Rendering new image for profile: %s" % profile_id) | |
c37ec602 | 44 | |
b3250465 MT |
45 | image_cls = self.iuse.get_imagetype(image_id) |
46 | if not image_cls: | |
47 | raise tornado.web.HTTPError(404, "Image class is unknown: %s" % image_id) | |
c37ec602 | 48 | |
b3250465 MT |
49 | profile = self.stasy.get_profile(profile_id) |
50 | if not profile: | |
51 | raise tornado.web.HTTPError(404, "Profile '%s' was not found." % profile_id) | |
52 | ||
53 | # Render the image | |
9068dba1 | 54 | image = image_cls(self.backend, self, profile).to_string() |
c37ec602 | 55 | |
b3250465 MT |
56 | # Save the image to the memcache for 15 minutes |
57 | self.memcached.set(mem_id, image, 15*60) | |
c37ec602 | 58 | |
192f0bdf | 59 | self.set_header("Content-Type", "image/png") |
b3250465 | 60 | self.write(image) |
c37ec602 | 61 |