如何以编程方式确定GitHub帐户是否使用默认配置文件图片(头像)?

时间:2018-03-05 04:24:50

标签: github github-api

当GitHub用户注册某个帐户时,GitHub会提供如下所示的默认个人资料图片:

enter image description here

用户可以根据说明here设置自定义个人资料照片。

我能想到的方法是从GitHub用户下载当前的个人资料图片,然后从https://github.com/identicons/USERNAME.png下载他的默认个人资料图片。然后比较这两张照片。但这个解决方案并不美观。

有没有一种很好的方法可以确定GitHub用户是使用默认个人资料图片还是设置了自定义个人资料图片?像一个布尔值,我可以检查或类似的东西。感谢。

2 个答案:

答案 0 :(得分:2)

GitHub会使用Gravatar service来获取与GitHub用户电子邮件帐户相关联的图片。

您可以query such an image通过Gravatar API。如果没有,则表示将使用默认的自动生成图像。

如果没有与电子邮件关联的图片,GitHub会使用?d=identicon parameter根据电子邮件哈希生成几何图案:

https://www.gravatar.com/avatar/05b6d7cc7c662bf81e01b39254f88a49?d=identicon

答案 1 :(得分:0)

我需要这样做,并且我认为作为生成的图像,像素将被干净地着色而没有抖动。

import requests
from PIL import Image

# image_url = "https://avatars.githubusercontent.com/u/85327959" # a photograph
image_url = "https://avatars.githubusercontent.com/u/85325807?v=4" # a gravatar
img_data = requests.get(image_url).content
with open("avatar.jpg", "wb") as handler:
    handler.write(img_data)

image = Image.open("avatar.jpg")
colour_count = len(set(image.getdata()))

print(image.size, "colours:", colour_count)

if colour_count < 10:
    print("this is a gravatar")

这是怎么回事?

我们下载图像,然后将其加载为 PIL 图像。然后我们以像素为单位制作一组颜色,所以我们只得到独特的颜色。如果只有 2 种独特的颜色,那么它是一个重力人,更多的是一张照片。 (我将它设置为 10 是为了给我一些喘息的空间,因为我不想要假阴性。)

你可以enter image description here

https://github.com/twbs.png

https://github.com/npm.png?size=200

我如何使用它IRL

在第一年的课程中,我想检查用户是否更新了他们的照片,以便教程团队可以轻松地将 repos 与人匹配。

def has_real_photo(repo_path):
    repo = git.cmd.Git(repo_path)
    origin_url = get_origin_url(repo)
    owner = origin_url.split("/")[3]
    image_url = f"https://github.com/{owner}.png?size=40"
    img_data = requests.get(image_url).content
    with open("avatar.jpg", "wb") as handler:
        handler.write(img_data)

    image = Image.open("avatar.jpg")
    colour_count = len(set(image.getdata()))

    if colour_count > 10:
        block_image = blocky_photo(image)
        print(block_image)
        return True
    else:
        block_image = blocky_photo(image)
        print(
            f"Your GitHub profile picture only has {colour_count} colours.\n"
            "This makes me think it's the default avatar.\n"
            "Not like this:\n",
            block_image,
            """Like this:
            ╭───────────╮
            │  !!!!!!!  │
            │ /       \ │
            │ │  O  O │ │
            │<│    v  │>│
            │  \  ─── / │
            │   \____/  │
            ╰───────────╯\n"""
            "Go to https://github.com/settings/profile and upload a photo of your face.\n"
            "This really helps us understand who's who and be more useful in tutorials.",
        )
        return False


def blocky_photo(image):
    colour_map_list = list(
        zip(
            list(set(image.getdata())),
            ["█", "░", "▒", "▓", "X", "#", "%", "/", ":", "*"],
        )
    )
    colour_map = {x[0]: x[1] for x in colour_map_list}
    image = image.resize((20, 10), Image.NEAREST)
    pixels = list(image.getdata())
    width, height = image.size
    block_image = ""
    for i in range(len(pixels)):
        block_image += colour_map[pixels[i]]
        if (i + 1) % (width) == 0:
            block_image += "\n "
    return block_image

他们有一组自己运行的测试,并且会打印:

Your GitHub profile picture only has 2 colours.
This makes me think it's the default avatar.
Not like this:
 ████████████████████
 █████░░░░░░░░░░█████
 █████░░░░░░░░░░█████
 █████░░░████░░░█████
 █████░░░████░░░█████
 █████░░░████░░░█████
 ██░░░░░░░░░░░░░░░░██
 ██░░░░░░░░░░░░░░░░██
 ██░░░░░░████░░░░░░██
 ████████████████████
  Like this:
            ╭───────────╮
            │  !!!!!!!  │
            │ /       \ │
            │ │  O  O │ │
            │<│    v  │>│
            │  \  ─── / │
            │   \____/  │
            ╰───────────╯
Go to https://github.com/settings/profile and upload a photo of your face.
This really helps us understand who's who and be more useful in tutorials.
✘ You've got a photo for your GitHub account