Show an download button instead of the updater

[nickvergessen]

@karlitschek @schiessle as discussed

cc @LukasReschke @MorrisJobke

for testing:

diff --git a/lib/private/Updater/VersionCheck.php b/lib/private/Updater/VersionCheck.php
index 88ba9b6..eed1728 100644
--- a/lib/private/Updater/VersionCheck.php
+++ b/lib/private/Updater/VersionCheck.php
@@ -56,7 +56,7 @@ class VersionCheck {
        public function check() {
                // Look up the cache - it is invalidated all 30 minutes
                if (((int)$this->config->getAppValue('core', 'lastupdatedat') + 1800) > time()) {
-                       return json_decode($this->config->getAppValue('core', 'lastupdateResult'), true);
+               #       return json_decode($this->config->getAppValue('core', 'lastupdateResult'), true);
                }

                $updaterUrl = $this->config->getSystemValue('updater.server.url', 'https://updates.nextcloud.com/server/');
@@ -79,7 +79,12 @@ class VersionCheck {
                $url = $updaterUrl . '?version=' . $versionString;

                $tmp = [];
-               $xml = $this->getUrlContent($url);
+               $xml = '<nextcloud>
+ <version>12.0.51</version>
+ <versionstring>Nextcloud 12.0.51</versionstring>
+ <url>https://download.nextcloud.com/server/releases/nextcloud-12.0.51.zip</url>
+ <web>https://docs.nextcloud.org/server/10/admin_manual/maintenance/upgrade.html</web>
+</nextcloud>';//$this->getUrlContent($url);
                if ($xml) {
                        $loadEntities = libxml_disable_entity_loader(true);
                        $data = @simplexml_load_string($xml);

[mention-bot]

@nickvergessen, thanks for your PR! By analyzing the annotation information on this pull request, we identified @LukasReschke, @blizzz and @MorrisJobke to be potential reviewers

[schiessle]

tested, works great (beside the failing unit tests 😉 ) 👍

[karlitschek]

nice 👍

[nickvergessen]

forgot to change the url

[MorrisJobke]

Tested and works 👍