Github活动提要url不包括域名

Question

我想在rails应用程序中显示一个用户的活动提要。我正在使用feedjira。

2.2.4 :006 > xml_feed = Feedjira::Feed.fetch_raw "https://github.com/prasadsurase.atom"
2.2.4 :006 > github_feed = Feedjira::Feed.parse xml_feed
2.2.4 :006 > github_feed.entries.first.content
=> "<!-- pull_request -->n<svg aria-label="Pull request" class="octicon octicon-git-pull-request dashboard-event-icon" height="32" role="img" version="1.1" viewBox="0 0 12 16" width="24"><path d="M11 11.28V5c-.03-.78-.34-1.47-.94-2.06C9.46 2.35 8.78 2.03 8 2H7V0L4 3l3 3V4h1c.27.02.48.11.69.31.21.2.3.42.31.69v6.28A1.993 1.993 0 0 0 10 15a1.993 1.993 0 0 0 1-3.72zm-1 2.92c-.66 0-1.2-.55-1.2-1.2 0-.65.55-1.2 1.2-1.2.65 0 1.2.55 1.2 1.2 0 .65-.55 1.2-1.2 1.2zM4 3c0-1.11-.89-2-2-2a1.993 1.993 0 0 0-1 3.72v6.56A1.993 1.993 0 0 0 2 15a1.993 1.993 0 0 0 1-3.72V4.72c.59-.34 1-.98 1-1.72zm-.8 10c0 .66-.55 1.2-1.2 1.2-.65 0-1.2-.55-1.2-1.2 0-.65.55-1.2 1.2-1.2.65 0 1.2.55 1.2 1.2zM2 4.2C1.34 4.2.8 3.65.8 3c0-.65.55-1.2 1.2-1.2.65 0 1.2.55 1.2 1.2 0 .65-.55 1.2-1.2 1.2z"></path></svg>nn<div class="time">n  <relative-time datetime="2016-09-23T07:30:24Z">Sep 23, 2016</relative-time>n</div>nn<div class="title">n  <a href="/prasadsurase" data-ga-click="News feed, event click, Event click type:PullRequestEvent target:actor">prasadsurase</a> opened pull request <a href="/joshsoftware/code-curiosity/pull/136" data-ga-click="News feed, event click, Event click type:PullRequestEvent target:pull">joshsoftware/code-curiosity#136</a>n</div>nn<div class="details">n  <a href="/prasadsurase"><img alt="@prasadsurase" class="gravatar" height="30" src="https://avatars3.githubusercontent.com/u/562052?v=3&amp;s=60" width="30" /></a>n  <div class="message">n    <blockquote>Fixed controller method scopes. Removed unwanted routes.</blockquote>n      <div class="pull-info">n        <svg aria-hidden="true" class="octicon octicon-git-commit" height="16" version="1.1" viewBox="0 0 14 16" width="14"><path d="M10.86 7c-.45-1.72-2-3-3.86-3-1.86 0-3.41 1.28-3.86 3H0v2h3.14c.45 1.72 2 3 3.86 3 1.86 0 3.41-1.28 3.86-3H14V7h-3.14zM7 10.2c-1.22 0-2.2-.98-2.2-2.2 0-1.22.98-2.2 2.2-2.2 1.22 0 2.2.98 2.2 2.2 0 1.22-.98 2.2-2.2 2.2z"></path></svg>n        <em>1</em> commit withn        <em>34</em> additions andn        <em>31</em> deletionsn      </div>n  </div>n</div>n"

为中的条目呈现内容。如raw，则链接中不包含域名https://github.com/，只包含路径。这会导致UI上呈现的链接包含app域而不是github的问题。我们如何解决这个问题?

Answer 1

由于github atom feeds提供了相对url的内容，您可能需要将它们替换为绝对引用。

可以用

gsub( %r{<a href="/},'<a href="https://github.com/')

因此替换你的:

2.2.4 :006 > github_feed.entries.first.content

2.2.4 :006 > github_feed.entries.first.content.gsub( %r{<a href="/},'<a href="https://github.com/')
=> "<!-- pull_request_review_comment -->n<svg aria-label="Review pull request comment" class="octicon octicon-comment-discussion dashboard-event-icon" height="32" role="img" version="1.1" viewBox="0 0 16 16" width="32"><path d="M15 1H6c-.55 0-1 .45-1 1v2H1c-.55 0-1 .45-1 1v6c0 .55.45 1 1 1h1v3l3-3h4c.55 0 1-.45 1-1V9h1l3 3V9h1c.55 0 1-.45 1-1V2c0-.55-.45-1-1-1zM9 11H4.5L3 12.5V11H1V5h4v3c0 .55.45 1 1 1h3v2zm6-3h-2v1.5L11.5 8H6V2h9v6z"></path></svg>nn<div class="time">n  <relative-time datetime="2016-09-28T03:21:31Z">Sep 28, 2016</relative-time>n</div>nn<div class="title">n  <a href="https://github.com/prasadsurase" data-ga-click="News feed, event click, Event click type:PullRequestReviewCommentEvent target:actor">prasadsurase</a> commented on pull request <a href="https://github.com/joshsoftware/code-curiosity/pull/137#discussion_r80837476" data-ga-click="News feed, event click, Event click type:PullRequestReviewCommentEvent target:pull-comment">joshsoftware/code-curiosity#137</a>n</div>nn<div class="details">n  <a href="https://github.com/prasadsurase"><img alt="@prasadsurase" class="gravatar" height="30" src="https://avatars3.githubusercontent.com/u/562052?v=3&amp;s=60" width="30" /></a>n  <div class="message markdown-body">n    <blockquote>n      <p><a href="https://github.com/BandanaPandey" class="user-mention">@BandanaPandey</a> Same here.</p>n    </blockquote>n  </div>n</div>n"