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{{NoteTA|G1=IT}}
{{for|Elasticsearch的分支OpenSearch|OpenSearch (軟體)}}
{{Infobox file format
| child =
| name = OpenSearch
| icon =
| logo =
| screenshot = Dewiki-searchplugin-blueish-autodiscovery.png
| screenshot_size = 300px
| caption = 提供加入新搜尋外掛程式的網頁範例。使用Firefox，目前選取的搜尋引擎的符號會變成藍色。使用者可以透過點擊三角形來新增該頁面所提供的搜尋引擎。
| extension =
| mime =
| type code =
| uniform type =
| magic =
| owner = [[亞馬遜公司]]
| released = {{Start date|2005|03|15}}
| latest release version = 1.1 Draft 6<ref>{{cite web|url=https://github.com/dewitt/opensearch/blob/master/opensearch-1-1-draft-6.md|title=OpenSearch 1.1 Draft 6|date=2019-12-08|access-date=2020-05-21|archive-date=2022-01-21|archive-url=https://web.archive.org/web/20220121164117/https://github.com/dewitt/opensearch/blob/master/opensearch-1-1-draft-6.md|dead-url=no}}</ref>
| latest release date = {{Start date and age|2005|12|06}}
| genre = 網路聚合
| container for =
| contained by =
| extended from = [[RSS]]
| extended to =
| standard =
| free = [[知识共享许可协议|CC BY-SA 4.0 國際]]
| url = {{URL|https://github.com/dewitt/opensearch}}
}}
'''OpenSearch'''是一組允許以網路聚合的格式發布搜尋結果的技術。其於2005年推出，是[[網站]]與[[网络搜索引擎|搜尋引擎]]以標準可被存取的格式發布搜尋結果的一種方式。

OpenSearch由[[亞馬遜公司]]的子公司{{link-en|A9.com|A9.com|A9}}開發，第一版的OpenSearch 1.0由[[杰夫·贝索斯]]在2005年3月15日的[[歐萊禮新興技術大會]]上公佈<ref>{{cite web|url=http://conferences.oreillynet.com/cs/et2005/view/e_spkr/1848|title=Speaker Jeffrey P. Bezos|date=2005|publisher=[[歐萊禮媒體]]|access-date=2020-05-21|archive-date=2020-07-21|archive-url=https://web.archive.org/web/20200721201449/http://conferences.oreillynet.com/cs/et2005/view/e_spkr/1848|dead-url=no}}</ref><ref>{{Cite web |title=OpenSearch at A9 |url=https://www.allthingsdistributed.com/historical/archives/000542.html |date=2005-03-15 |access-date=2021-03-09 |archive-url=https://web.archive.org/web/20171024152502/http://www.allthingsdistributed.com/historical/archives/000542.html |archive-date=2017-10-24 |website=allthingsdistributed.com |last1=Werner |first1=Vogels |dead-url=no }}</ref>。OpenSearch 1.1的草稿版本則於2005年9月與12月發布。

== 支援 ==
支援OpenSearch的[[网页浏览器]]包含了[[Safari]]<ref>{{cite web
| url=https://developer.apple.com/library/archive/releasenotes/General/WhatsNewInSafari/Articles/Safari_8_0.html
| title=What's New in Safari 8.0
| date=2018-02-22
| publisher=[[蘋果公司]]
| quote=In OS X, website developers can aid Safari in discovering searchable content by including an OpenSearch description document on their site, [...]
| access-date=2020-05-21
| archive-date=2022-01-13
| archive-url=https://web.archive.org/web/20220113071301/https://developer.apple.com/library/archive/releasenotes/General/WhatsNewInSafari/Articles/Safari_8_0.html
| dead-url=no
}}</ref>、[[Microsoft Edge]]<ref>{{Cite web
| url=https://support.microsoft.com/en-us/help/4028574/microsoft-edge-change-the-default-search-engine
| title=Change your default search engine
| date=2020-04-16
| publisher=[[微软]]
| quote=However, you can change the default search engine in Microsoft Edge to any site that uses OpenSearch technology
| access-date=2020-05-21
| archive-date=2019-02-09
| archive-url=https://web.archive.org/web/20190209055856/https://support.microsoft.com/en-us/help/4028574/microsoft-edge-change-the-default-search-engine/
| dead-url=no
}}</ref>、[[Firefox瀏覽器|Firefox]]<ref>{{cite web
| url=https://developer.mozilla.org/en-US/docs/Archive/Add-ons/Supporting_search_suggestions_in_search_plugins
| title=Supporting search suggestions in search plugins
| date=2019-03-23
| publisher=[[Mozilla]]
| quote=Firefox supports search suggestions in OpenSearch plugins
| access-date=2020-05-21
| archive-date=2021-01-24
| archive-url=https://web.archive.org/web/20210124073052/https://developer.mozilla.org/en-US/docs/Archive/Add-ons/Supporting_search_suggestions_in_search_plugins
| dead-url=no
}}</ref>以及[[Google Chrome]]<ref>{{cite web
| url=http://www.google.com/chrome/intl/en/webmasters-faq.html
| title=FAQ for web developers
| quote=By providing an OpenSearch description document (OSDD), you enable Google Chrome to include your site in the list of search engines in the browser.
| archive-url=https://web.archive.org/web/20120101182352/http://www.google.com/chrome/intl/en/webmasters-faq.html
| archive-date=2012-01-01
| url-status=dead
| access-date=2020-05-21}}</ref>。

Mozilla已表示他們會將OpenSearch搜尋附加元件棄用並改用WebExtentions搜尋附加元件。但不會影響到從網站手動新增OpenSearch引擎的能力<ref>{{cite web|url=https://blog.mozilla.org/addons/2019/10/15/search-engine-add-ons-to-be-removed-from-addons-mozilla-org/|title=Search Engine add-ons to be removed from addons.mozilla.org|date=2019-10-15|first=Caitlin|last=Neiman|publisher=Mozilla|access-date=2020-05-21|archive-date=2021-07-31|archive-url=https://web.archive.org/web/20210731032505/https://blog.mozilla.org/addons/2019/10/15/search-engine-add-ons-to-be-removed-from-addons-mozilla-org/|dead-url=no}}</ref>。自2019年12月5日起，使用OpenSearch技術的搜尋引擎附加元件已從Mozilla的附加元件網站上移除。

== 設計 ==
[[File:Dewiki-suggesting-searchplugin.png|thumb|300px|[[德語維基百科]]的搜尋建議]]

OpenSearch包含了：

# '''OpenSearch描述檔'''：用來識別與描述搜尋引擎的[[XML]]檔案
# '''OpenSearch查詢語法'''：描述了要在哪裡擷取搜尋結果
# '''OpenSearch [[RSS]]''' (OpenSearch 1.0) 或是'''OpenSearch回應''' (OpenSearch 1.1)：用於提供開放搜尋結果的格式
# '''OpenSearch聚合器'''：網站可以顯示OpenSearch結果
# '''OpenSearch自動探索'''向使用者發出搜尋外掛程式連結以及嵌入在HTML頁面標頭中連結的訊號

OpenSearch描述文件列出了指定網站或工具的搜尋結果回應。1.0版的規範僅允許RSS格式的回應；不過1.1版則支援了多種回應，可以是任意格式。OpenSearch聚合器僅正式支援RSS與[[Atom (標準)|Atom]]，但仍然可以接受其他如[[HTML]]等格式。

* 自動探索OpenSearch描述文件可透過HTML與Atom或RSS feed以連結關係<code><atom:link rel="search" ... /></code> (Atom)<ref name=":0">{{Cite web|url = https://github.com/dewitt/opensearch/blob/master/opensearch-1-1-draft-6.md#autodiscovery-in-rssatom|title = Autodiscovery in RSS/Atom|date = 2019-12-08|access-date = 2021-07-31|archive-date = 2022-01-21|archive-url = https://web.archive.org/web/20220121164117/https://github.com/dewitt/opensearch/blob/master/opensearch-1-1-draft-6.md#autodiscovery-in-rssatom|dead-url = no}}</ref>或<code><link rel="search" ... /></code> (RSS)<ref name=":0" />與HTML文件<ref>{{Cite web|url = https://github.com/dewitt/opensearch/blob/master/opensearch-1-1-draft-6.md#autodiscovery-in-htmlxhtml|title = Autodiscovery in HTML/XHTML|date = 2019-12-08|access-date = 2021-07-31|archive-date = 2022-01-21|archive-url = https://web.archive.org/web/20220121164117/https://github.com/dewitt/opensearch/blob/master/opensearch-1-1-draft-6.md#autodiscovery-in-htmlxhtml|dead-url = no}}</ref>。
* OpenSearch描述文件必須必須放置在同一個網域的網路伺服器上<ref>{{cite web
| url=https://github.com/dewitt/opensearch/blob/master/mediawiki/Documentation/Developer%20how%20to%20guide.wiki
| title=How to return OpenSearch results from your search engine
| work=Developer how to guide.wiki
| date=2018-04-14
| access-date=2020-05-21
| archive-date=2021-07-31
| archive-url=https://web.archive.org/web/20210731032534/https://github.com/dewitt/opensearch/blob/master/mediawiki/Documentation/Developer%20how%20to%20guide.wiki
| dead-url=no
}}</ref>。
* OpenSearch描述文件必須以<code>application/opensearchdescription+xml</code>[[互联网媒体类型]]<ref>{{Cite web|url = https://github.com/dewitt/opensearch/blob/master/opensearch-1-1-draft-6.md#mime-type-applicationopensearchdescriptionxml|title = MIME type application/opensearchdescription+xml|date = 2019-12-08|access-date = 2021-07-31|archive-date = 2022-01-21|archive-url = https://web.archive.org/web/20220121164117/https://github.com/dewitt/opensearch/blob/master/opensearch-1-1-draft-6.md#mime-type-applicationopensearchdescriptionxml|dead-url = no}}</ref>提供。

== 參見 ==
* [[表现层状态转换]] (REST)
* [[GraphQL]]
* {{link-en|OpenURL|OpenURL}}

== 參考資料 ==
{{reflist|30em}}

{{网页浏览器}}

[[Category:網路搜尋引擎]]
[[Category:XML]]
[[Category:公開格式]]
[[Category:2005年软件]]

OpenSearch - 版本历史

imported>Tjmj：​清理Category:使用未知参数的文件格式信息框的页面

imported>Tjmj：清理Category:使用未知参数的文件格式信息框的页面