New feature: shareable user query (#6052)

* New feature: shareable user query
Share the output of a user query by RSS / HTML / OPML with other people through unique URLs.
Replaces the global admin token, which was the only option (but unsafe) to share RSS outputs with other people.
Also add a new HTML output for people without an RSS reader.

fix https://github.com/FreshRSS/FreshRSS/issues/3066#issuecomment-648977890
fix https://github.com/FreshRSS/FreshRSS/issues/3178#issuecomment-769435504

* Remove unused method

* Fix token saving

* Implement HTML view

* Update i18n for master token

* Revert i18n get_favorite

* Fix missing i18n for user queries from before this PR

* Remove irrelevant tests

* Add link to RSS version

* Fix getGet

* Fix getState

* Fix getSearch

* Alternative getSearch

* Default getOrder

* Explicit default state

* Fix test

* Add OPML sharing

* Remove many redundant SQL queries from original implementation of user queries

* Fix article tags

* Use default user settings

* Prepare public search

* Fixes

* Allow user search on article tags

* Implement user search

* Revert filter bug

* Revert wrong SQL left outer join change

* Implement checkboxes

* Safe check of OPML

* Fix label

* Remove RSS button to favour new sharing method
That sharing button was using a global admin token

* First version of HTTP 304

* Disallow some recusrivity
fix https://github.com/FreshRSS/FreshRSS/issues/6086

* Draft of nav

* Minor httpConditional

* Add support for offset for pagination

* Fix offset pagination

* Fix explicit order ASC

* Add documentation

* Help links i18n

* Note about deprecated master token

* Typo

* Doc about format

1 files changed, 0 insertions, 3 deletions

diff --git a/app/views/helpers/index/normal/entry_header.phtml b/app/views/helpers/index/normal/entry_header.phtml
index b324a5949..f550dfa21 100644
--- a/app/views/helpers/index/normal/entry_header.phtml
+++ b/app/views/helpers/index/normal/entry_header.phtml
@@ -1,9 +1,6 @@
 <?php
 	declare(strict_types=1);
 	/** @var FreshRSS_View $this */
-	if ($this->feed === null) {
-		throw new FreshRSS_Context_Exception('Feed not initialised!');
-	}
 	$topline_read = FreshRSS_Context::userConf()->topline_read;
 	$topline_favorite = FreshRSS_Context::userConf()->topline_favorite;
 	$topline_website = FreshRSS_Context::userConf()->topline_website;