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95 lines
4.7 KiB
Markdown
95 lines
4.7 KiB
Markdown
---
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layout: article
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title: URIs for Vault Items
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categories: [account-management]
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featured: false
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popular: false
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tags: [uri, match detection, autofill]
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order: 09
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---
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Any Login item in your Vault can be created with or edited to include one or more URI (Uniform Resource Identifier). A URI can be a website address (i.e. a URL), a Server IP Address, a Mobile App Package ID, and more.
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{% image uri.png Login item URI fields in the Web Vault %}
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{% callout success %}
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Assigning URIs to Login items is **required if you want to leverage auto-fill** functionality in the various Bitwarden client applications.
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{% endcallout %}
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## URI Schemes
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Well-formed URIs should include a scheme at the beginning, for example the `https://` scheme to securely reference a website address. If no scheme is specified, `http://` is assumed.
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{% callout success %}
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Most Bitwarden client applications allow you to {% icon fa-share-square %} **Launch** an website or app directly from your Vault. Without a scheme, this functionality will not work properly.
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{% endcallout %}
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Schemes include:
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- `http://` or `https://` reference website addresses (e.g. `https://github.com`)
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- `androidapp://` references an Android Application Package ID or Name (e.g. `androidapp://com.twitter.android`)
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## Match Detection Options
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Each URI assigned to a Login item has an associated **Match Detection** option. This option determines when and whether Bitwarden will offer the Login as an available option for auto-fill.
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### Default match detection
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Bitwarden Browser Extensions and Mobile Apps can select a **Default match detection** option from the options below (Base domain, Host, Starts with, Regular expression, Exact, or Never) by navigating to {% icon fa-cogs %}**Settings** → **Options** → **Default URI Match Detection**. Setting a default option will not preclude you from specifying a match detection option on an item-by-item basis as well.
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By default, Bitwarden will use **Base domain** matching as the default option.
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### Base domain
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Selecting **Base domain** will prompt Bitwarden to offer auto-fill when the top-level domain and second-level domain of a Login's URI value match the detected resource.
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For example, if the URI value `https://google.com` uses base domain match detection:
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- **Auto-fill offered** for `http://google.com` & `https://accounts.google.com`
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- **Auto-fill not offered** for `https://google.net` & `http://yahoo.com`
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### Host
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Selecting **Host** will prompt Bitwarden to offer auto-fill when the hostname and (*if specified*) port of the Login's URI value matches the detected resource.
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For example, if the URI value `https://sub.domain.com:4000` uses host match detection:
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- **Auto-fill offered** for `http://sub.domain.com:4000` & `https://sub.domain.com:4000/page.html`
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- **Auto-fill not offered** for `https://domain.com`, `https://sub.domain.com`, `https://sub2.sub.domain.com:4000`, or `https://sub.domain.com:5000`
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### Starts with
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Selecting **Starts with** will prompt Bitwarden to offer auto-fill when the detected resource starts with the Login URI value, regardless of what follows it.
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For example, if the URI value `https://sub.domain.com/path/` uses starts with match detection:
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- **Auto-fill offered** for `https://sub.domain.com/path/` & `https://sub.domain.com/path/page.html`
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- **Auto-fill not offered** for `https://sub.domain.com`, `https://sub.domain.com:4000/path/page.html` (interrupted with a port), or `https://sub.domain.com/path` (absent trailing slash)
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### Regular expression
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{% callout note %}
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Regular expressions are an advanced option and can be quite dangerous if used incorrectly. You should not use this option if you do not know exactly what you're doing.
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{% endcallout %}
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Selecting **Regular expression** will prompt Bitwarden to offer auto-fill when the detected resources matches a specified [regular expression](https://en.wikipedia.org/wiki/Regular_expression){:target="_blank"}. Regular expressions are always *case insensitive*.
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For example, if the URI vault `^https://.*google\.com$` uses regular expression match detection:
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- **Auto-fill offered** for `https://google.com`, `https://sub.google.com`, `https://malicious-site.com?q=google.com`
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- **Auto-fill not offered** for `http://google.com` or `https://yahoo.com`
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### Exact
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Selecting **Exact** will prompt Bitwarden to offer auto-fill when the Login URI value matches the detected resource exactly.
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For example, if the URI value `https://www.google.com/page.html` uses exact match detection:
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- **Auto-fill offered** for `https://www.google.com/page.html`
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- **Auto-fill not offered** for `http://www.google.com/page.html`, `https://www.google.com/page.html?query=123`, or `https://www.google.com`
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### Never
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Selecting **Never** will prompt Bitwarden to never offer auto-fill for the Login item.
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