Merge pull request #46 from matrix-org/identicons

Add a media/v1/identicon resource for generating identicons
This commit is contained in:
Mark Haines 2015-02-02 18:56:34 +00:00
commit 09601255f5
4 changed files with 55 additions and 0 deletions

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@ -43,6 +43,7 @@ setup(
"py-bcrypt",
"frozendict>=0.4",
"pillow",
"pydenticon",
],
dependency_links=[
"https://github.com/matrix-org/syutil/tarball/v0.0.2#egg=syutil-0.0.2",

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@ -16,6 +16,7 @@ REQUIREMENTS = {
"py-bcrypt": ["bcrypt"],
"frozendict>=0.4": ["frozendict"],
"pillow": ["PIL"],
"pydenticon": ["pydenticon"],
}
def github_link(project, version, egg):

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@ -0,0 +1,51 @@
from pydenticon import Generator
from twisted.web.resource import Resource
FOREGROUND = [
"rgb(45,79,255)",
"rgb(254,180,44)",
"rgb(226,121,234)",
"rgb(30,179,253)",
"rgb(232,77,65)",
"rgb(49,203,115)",
"rgb(141,69,170)"
]
BACKGROUND = "rgb(224,224,224)"
SIZE = 5
class IdenticonResource(Resource):
isLeaf = True
def __init__(self):
Resource.__init__(self)
self.generator = Generator(
SIZE, SIZE, foreground=FOREGROUND, background=BACKGROUND,
)
def generate_identicon(self, name, width, height):
v_padding = width % SIZE
h_padding = height % SIZE
top_padding = v_padding // 2
left_padding = h_padding // 2
bottom_padding = v_padding - top_padding
right_padding = h_padding - left_padding
width -= v_padding
height -= h_padding
padding = (top_padding, bottom_padding, left_padding, right_padding)
identicon = self.generator.generate(
name, width, height, padding=padding
)
return identicon
def render_GET(self, request):
name = "/".join(request.postpath)
width = int(request.args.get("width", [96])[0])
height = int(request.args.get("height", [96])[0])
identicon_bytes = self.generate_identicon(name, width, height)
request.setHeader(b"Content-Type", b"image/png")
request.setHeader(
b"Cache-Control", b"public,max-age=86400,s-maxage=86400"
)
return identicon_bytes

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@ -16,6 +16,7 @@
from .upload_resource import UploadResource
from .download_resource import DownloadResource
from .thumbnail_resource import ThumbnailResource
from .identicon_resource import IdenticonResource
from .filepath import MediaFilePaths
from twisted.web.resource import Resource
@ -75,3 +76,4 @@ class MediaRepositoryResource(Resource):
self.putChild("upload", UploadResource(hs, filepaths))
self.putChild("download", DownloadResource(hs, filepaths))
self.putChild("thumbnail", ThumbnailResource(hs, filepaths))
self.putChild("identicon", IdenticonResource())