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Merge commit 'f96384a3b596f9bc0a3a035970b09b2c601f0ccb'
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@@ -1,20 +1,13 @@
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---
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title: safeURL
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description: Declares the provided string as a safe URL or URL substring.
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date: 2017-02-01
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publishdate: 2017-02-01
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lastmod: 2017-02-01
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keywords: [strings,urls]
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categories: [functions]
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menu:
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docs:
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parent: "functions"
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parent: functions
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signature: ["safeURL INPUT"]
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workson: []
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hugoversion:
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relatedfuncs: []
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deprecated: false
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aliases: []
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---
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`safeURL` declares the provided string as a "safe" URL or URL substring (see [RFC 3986]). A URL like `javascript:checkThatFormNotEditedBeforeLeavingPage()` from a trusted source should go in the page, but by default dynamic `javascript:` URLs are filtered out since they are a frequently exploited injection vector.
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@@ -23,35 +16,35 @@ Without `safeURL`, only the URI schemes `http:`, `https:` and `mailto:` are cons
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The following examples use a [site `config.toml`][configuration] with the following [menu entry][menus]:
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{{< code file="config.toml" copy="false" >}}
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{{< code-toggle file="config" copy=false >}}
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[[menu.main]]
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name = "IRC: #golang at freenode"
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url = "irc://irc.freenode.net/#golang"
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{{< /code >}}
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name = "IRC: #golang at freenode"
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url = "irc://irc.freenode.net/#golang"
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{{< /code-toggle >}}
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The following is an example of a sidebar partial that may be used in conjunction with the preceding front matter example:
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{{< code file="layouts/partials/bad-url-sidebar-menu.html" copy="false" >}}
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{{< code file="layouts/partials/bad-url-sidebar-menu.html" copy=false >}}
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<!-- This unordered list may be part of a sidebar menu -->
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<ul>
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{{ range .Site.Menus.main }}
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<li><a href="{{ .URL }}">{{ .Name }}</a></li>
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<li><a href="{{ .URL }}">{{ .Name }}</a></li>
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{{ end }}
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</ul>
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{{< /code >}}
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This partial would produce the following HTML output:
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{{< output file="bad-url-sidebar-menu-output.html" >}}
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```html
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<!-- This unordered list may be part of a sidebar menu -->
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<ul>
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<li><a href="#ZgotmplZ">IRC: #golang at freenode</a></li>
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<li><a href="#ZgotmplZ">IRC: #golang at freenode</a></li>
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</ul>
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{{< /output >}}
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```
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The odd output can be remedied by adding ` | safeURL` to our `.URL` page variable:
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{{< code file="layouts/partials/correct-url-sidebar-menu.html" copy="false" >}}
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{{< code file="layouts/partials/correct-url-sidebar-menu.html" copy=false >}}
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<!-- This unordered list may be part of a sidebar menu -->
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<ul>
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<li><a href="{{ .URL | safeURL }}">{{ .Name }}</a></li>
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@@ -60,11 +53,11 @@ The odd output can be remedied by adding ` | safeURL` to our `.URL` page variabl
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With the `.URL` page variable piped through `safeURL`, we get the desired output:
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{{< output file="correct-url-sidebar-menu-output.html" >}}
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```html
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<ul class="sidebar-menu">
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<li><a href="irc://irc.freenode.net/#golang">IRC: #golang at freenode</a></li>
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<li><a href="irc://irc.freenode.net/#golang">IRC: #golang at freenode</a></li>
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</ul>
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{{< /output >}}
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```
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[configuration]: /getting-started/configuration/
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[menus]: /content-management/menus/
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