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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): | |
30bb04e2 | 12 | def write_error(self, status_code, **kwargs): |
e8478c5e MT |
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 | ||
30bb04e2 | 27 | imgdata = None |
e8478c5e | 28 | with open(image, "rb") as f: |
30bb04e2 MT |
29 | imgdata = f.read() |
30 | ||
31 | self.finish(imgdata) | |
e8478c5e | 32 | |
c37ec602 | 33 | def get(self, profile_id, image_id): |
abc3bb31 | 34 | image = None |
b3250465 MT |
35 | # Try to get the image from memcache. If we have a cache miss we |
36 | # build a new one. | |
abc3bb31 MT |
37 | mem_id = "iuse-%s-%s-%s" % (profile_id, image_id, self.locale.code) |
38 | ||
39 | cache = self.get_argument("cache", "true") | |
40 | if cache == "true": | |
41 | image = self.memcached.get(mem_id) | |
42 | ||
43 | if image: | |
44 | logging.debug("Got image from cache for profile: %s" % profile_id) | |
45 | else: | |
46 | logging.info("Rendering new image for profile: %s" % profile_id) | |
c37ec602 | 47 | |
b3250465 MT |
48 | image_cls = self.iuse.get_imagetype(image_id) |
49 | if not image_cls: | |
50 | raise tornado.web.HTTPError(404, "Image class is unknown: %s" % image_id) | |
c37ec602 | 51 | |
66862195 | 52 | profile = self.fireinfo.get_profile(profile_id) |
b3250465 MT |
53 | if not profile: |
54 | raise tornado.web.HTTPError(404, "Profile '%s' was not found." % profile_id) | |
55 | ||
56 | # Render the image | |
9068dba1 | 57 | image = image_cls(self.backend, self, profile).to_string() |
c37ec602 | 58 | |
66862195 MT |
59 | # Save the image to the memcache for 60 minutes |
60 | self.memcached.set(mem_id, image, 3600) | |
c37ec602 | 61 | |
192f0bdf | 62 | self.set_header("Content-Type", "image/png") |
b3250465 | 63 | self.write(image) |
c37ec602 | 64 |