Add an option to set a custom user agent to retrieve individual feeds (#3494)

* Add an option to set a custom user agent to retrieve individual feeds

This allows retrieving the original RSS feed when websites use services like FeedBurner.

* Use !== instead of != in subscriptionController.php

* Add proxy and user-agent to subscription/add

Co-authored-by: Georgelemental <georgelemental@gmail.com>
Co-authored-by: Alexandre Alapetite <alexandre@alapetite.fr>

17 files changed, 34 insertions, 0 deletions

diff --git a/app/i18n/cz/sub.php b/app/i18n/cz/sub.php
index 9e933f60d..19c0bf2a7 100644
--- a/app/i18n/cz/sub.php
+++ b/app/i18n/cz/sub.php
@@ -90,6 +90,8 @@ return array(
 		'title_add' => 'Přidat RSS kanál',
 		'ttl' => 'Neobnovovat častěji než',
 		'url' => 'URL kanálu',
+		'useragent' => 'Set the user agent for fetching this feed',	// TODO - Translation
+		'useragent_help' => 'Example: <kbd>Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:86.0)</kbd>',	// TODO - Translation
 		'validator' => 'Zkontrolovat platnost kanálu',
 		'website' => 'URL webové stránky',
 		'websub' => 'Okamžité oznámení s WebSub',
diff --git a/app/i18n/de/sub.php b/app/i18n/de/sub.php
index 0b74e29d0..8698268f3 100644
--- a/app/i18n/de/sub.php
+++ b/app/i18n/de/sub.php
@@ -90,6 +90,8 @@ return array(
 		'title_add' => 'Einen RSS-Feed hinzufügen',
 		'ttl' => 'Aktualisiere automatisch nicht öfter als',
 		'url' => 'Feed-URL',
+		'useragent' => 'Set the user agent for fetching this feed',	// TODO - Translation
+		'useragent_help' => 'Example: <kbd>Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:86.0)</kbd>',	// TODO - Translation
 		'validator' => 'Überprüfen Sie die Gültigkeit des Feeds',
 		'website' => 'Webseiten-URL',
 		'websub' => 'Sofortbenachrichtigung mit WebSub',
diff --git a/app/i18n/en-us/sub.php b/app/i18n/en-us/sub.php
index 0aa3f7f4c..ee8ece901 100644
--- a/app/i18n/en-us/sub.php
+++ b/app/i18n/en-us/sub.php
@@ -90,6 +90,8 @@ return array(
 		'title_add' => 'Add an RSS feed',
 		'ttl' => 'Do not automatically refresh more often than',
 		'url' => 'Feed URL',
+		'useragent' => 'Set the user agent for fetching this feed',
+		'useragent_help' => 'Example: <kbd>Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:86.0)</kbd>',
 		'validator' => 'Check the validity of the feed',
 		'website' => 'Website URL',
 		'websub' => 'Instant notification with WebSub',
diff --git a/app/i18n/en/sub.php b/app/i18n/en/sub.php
index 2335addf6..dd230ba1b 100644
--- a/app/i18n/en/sub.php
+++ b/app/i18n/en/sub.php
@@ -90,6 +90,8 @@ return array(
 		'title_add' => 'Add an RSS feed',
 		'ttl' => 'Do not automatically refresh more often than',
 		'url' => 'Feed URL',
+		'useragent' => 'Set the user agent for fetching this feed',
+		'useragent_help' => 'Example: <kbd>Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:86.0)</kbd>',
 		'validator' => 'Check the validity of the feed',
 		'website' => 'Website URL',
 		'websub' => 'Instant notification with WebSub',
diff --git a/app/i18n/es/sub.php b/app/i18n/es/sub.php
index 32376be75..856b4556e 100755
--- a/app/i18n/es/sub.php
+++ b/app/i18n/es/sub.php
@@ -90,6 +90,8 @@ return array(
 		'title_add' => 'Añadir fuente RSS',
 		'ttl' => 'No actualizar de forma automática con una frecuencia mayor a',
 		'url' => 'URL de la fuente',
+		'useragent' => 'Selecciona el agente de usario por recuperar la fuente',
+		'useragent_help' => 'Ejemplo: <kbd>Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:86.0)</kbd>',
 		'validator' => 'Verifica la validez de la fuente',
 		'website' => 'Web de la URL',
 		'websub' => 'Notificación inmedaiata con WebSub',
diff --git a/app/i18n/fr/sub.php b/app/i18n/fr/sub.php
index 495c4c086..a2a3d4bc2 100644
--- a/app/i18n/fr/sub.php
+++ b/app/i18n/fr/sub.php
@@ -90,6 +90,8 @@ return array(
 		'title_add' => 'Ajouter un flux RSS',
 		'ttl' => 'Ne pas automatiquement rafraîchir plus souvent que',
 		'url' => 'URL du flux',
+		'useragent' => 'Sélectionner l’agent utilisateur pour télécharger ce flux',
+		'useragent_help' => 'Exemple: <kbd>Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:86.0)</kbd>',
 		'validator' => 'Vérifier la validité du flux',
 		'website' => 'URL du site',
 		'websub' => 'Notification instantanée par WebSub',
diff --git a/app/i18n/he/sub.php b/app/i18n/he/sub.php
index 3bb576952..5984d5f6c 100644
--- a/app/i18n/he/sub.php
+++ b/app/i18n/he/sub.php
@@ -90,6 +90,8 @@ return array(
 		'title_add' => 'הוספת הזנה',
 		'ttl' => 'אין לרענן אוטומטית יותר מ',
 		'url' => 'הזנה URL',
+		'useragent' => 'Set the user agent for fetching this feed',	// TODO - Translation
+		'useragent_help' => 'Example: <kbd>Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:86.0)</kbd>',	// TODO - Translation
 		'validator' => 'בדיקות תקינות ההזנה',
 		'website' => 'אתר URL',
 		'websub' => 'Instant notification with WebSub',	// TODO - Translation
diff --git a/app/i18n/it/sub.php b/app/i18n/it/sub.php
index 9c2fd1b08..3cb71c485 100644
--- a/app/i18n/it/sub.php
+++ b/app/i18n/it/sub.php
@@ -90,6 +90,8 @@ return array(
 		'title_add' => 'Aggiungi RSS feed',
 		'ttl' => 'Non aggiornare automaticamente piu di',
 		'url' => 'Feed URL',	// TODO - Translation
+		'useragent' => 'Set the user agent for fetching this feed',	// TODO - Translation
+		'useragent_help' => 'Example: <kbd>Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:86.0)</kbd>',	// TODO - Translation
 		'validator' => 'Controlla la validita del feed ',
 		'website' => 'URL del sito',
 		'websub' => 'Notifica istantanea con WebSub',
diff --git a/app/i18n/kr/sub.php b/app/i18n/kr/sub.php
index a953808d7..1c04e9fb9 100644
--- a/app/i18n/kr/sub.php
+++ b/app/i18n/kr/sub.php
@@ -90,6 +90,8 @@ return array(
 		'title_add' => 'RSS 피드 추가',
 		'ttl' => '다음 시간이 지나기 전에 새로고침 금지',
 		'url' => '피드 URL',
+		'useragent' => 'Set the user agent for fetching this feed',	// TODO - Translation
+		'useragent_help' => 'Example: <kbd>Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:86.0)</kbd>',	// TODO - Translation
 		'validator' => '피드 유효성 검사',
 		'website' => '웹사이트 URL',
 		'websub' => 'WebSub을 사용한 즉시 알림',
diff --git a/app/i18n/nl/sub.php b/app/i18n/nl/sub.php
index e6adcb564..9656529b1 100644
--- a/app/i18n/nl/sub.php
+++ b/app/i18n/nl/sub.php
@@ -90,6 +90,8 @@ return array(
 		'title_add' => 'Voeg een RSS-feed toe',
 		'ttl' => 'Vernieuw automatisch niet vaker dan',
 		'url' => 'Feed-url',
+		'useragent' => 'Set the user agent for fetching this feed',	// TODO - Translation
+		'useragent_help' => 'Example: <kbd>Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:86.0)</kbd>',	// TODO - Translation
 		'validator' => 'Controleer de geldigheid van de feed',
 		'website' => 'Website-url',
 		'websub' => 'Directe notificaties met WebSub',
diff --git a/app/i18n/oc/sub.php b/app/i18n/oc/sub.php
index 9b70bdac2..7461facfc 100644
--- a/app/i18n/oc/sub.php
+++ b/app/i18n/oc/sub.php
@@ -90,6 +90,8 @@ return array(
 		'title_add' => 'Ajustar un flux RSS',
 		'ttl' => 'Actualizar pas automaticament mai sovent que',
 		'url' => 'Flux URL',
+		'useragent' => 'Set the user agent for fetching this feed',	// TODO - Translation
+		'useragent_help' => 'Example: <kbd>Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:86.0)</kbd>',	// TODO - Translation
 		'validator' => 'Verificar la validitat del flux',
 		'website' => 'URL del site',
 		'websub' => 'Notificaciones instantáneas amb WebSub',
diff --git a/app/i18n/pl/sub.php b/app/i18n/pl/sub.php
index b1e93f1e8..bea398af5 100644
--- a/app/i18n/pl/sub.php
+++ b/app/i18n/pl/sub.php
@@ -90,6 +90,8 @@ return array(
 		'title_add' => 'Dodaj kanał',
 		'ttl' => 'Nie odświeżaj automatycznie częściej niż',
 		'url' => 'Adres kanału',
+		'useragent' => 'Set the user agent for fetching this feed',	// TODO - Translation
+		'useragent_help' => 'Example: <kbd>Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:86.0)</kbd>',	// TODO - Translation
 		'validator' => 'Sprawdź poprawność kanału',
 		'website' => 'Adres strony',
 		'websub' => 'Instant notification with WebSub',	// TODO - Translation
diff --git a/app/i18n/pt-br/sub.php b/app/i18n/pt-br/sub.php
index 2fd0138ed..286c1c5bd 100644
--- a/app/i18n/pt-br/sub.php
+++ b/app/i18n/pt-br/sub.php
@@ -90,6 +90,8 @@ return array(
 		'title_add' => 'Adicionar o RSS feed',
 		'ttl' => 'Não atualize automaticamente mais que',
 		'url' => 'URL do Feed',
+		'useragent' => 'Set the user agent for fetching this feed',	// TODO - Translation
+		'useragent_help' => 'Example: <kbd>Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:86.0)</kbd>',	// TODO - Translation
 		'validator' => 'Verifique a validade do feed',
 		'website' => 'URL do site',
 		'websub' => 'Notificação instantânea com WebSub',
diff --git a/app/i18n/ru/sub.php b/app/i18n/ru/sub.php
index cd18f56de..05a8024f5 100644
--- a/app/i18n/ru/sub.php
+++ b/app/i18n/ru/sub.php
@@ -90,6 +90,8 @@ return array(
 		'title_add' => 'Add an RSS feed',	// TODO - Translation
 		'ttl' => 'Do not automatically refresh more often than',	// TODO - Translation
 		'url' => 'Feed URL',	// TODO - Translation
+		'useragent' => 'Set the user agent for fetching this feed',	// TODO - Translation
+		'useragent_help' => 'Example: <kbd>Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:86.0)</kbd>',	// TODO - Translation
 		'validator' => 'Check the validity of the feed',	// TODO - Translation
 		'website' => 'Website URL',	// TODO - Translation
 		'websub' => 'Instant notification with WebSub',	// TODO - Translation
diff --git a/app/i18n/sk/sub.php b/app/i18n/sk/sub.php
index b60d16400..98a436f02 100644
--- a/app/i18n/sk/sub.php
+++ b/app/i18n/sk/sub.php
@@ -90,6 +90,8 @@ return array(
 		'title_add' => 'Pridať kanál RSS',
 		'ttl' => 'Automaticky neaktualizovať častejšie ako',
 		'url' => 'Odkaz kanála',
+		'useragent' => 'Set the user agent for fetching this feed',	// TODO - Translation
+		'useragent_help' => 'Example: <kbd>Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:86.0)</kbd>',	// TODO - Translation
 		'validator' => 'Skontrolovať platnosť kanála',
 		'website' => 'Odkaz webovej stránky',
 		'websub' => 'Okamžité oznámenia cez WebSub',
diff --git a/app/i18n/tr/sub.php b/app/i18n/tr/sub.php
index 83ea31fb2..e9f895dcf 100644
--- a/app/i18n/tr/sub.php
+++ b/app/i18n/tr/sub.php
@@ -90,6 +90,8 @@ return array(
 		'title_add' => 'RSS akışı ekle',
 		'ttl' => 'Şu kadar süreden fazla otomatik yenileme yapma',
 		'url' => 'Akış URL',
+		'useragent' => 'Set the user agent for fetching this feed',	// TODO - Translation
+		'useragent_help' => 'Example: <kbd>Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:86.0)</kbd>',	// TODO - Translation
 		'validator' => 'Akış geçerliliğini kontrol edin',
 		'website' => 'Site URL',
 		'websub' => 'WebSub ile anlık bildirim',
diff --git a/app/i18n/zh-cn/sub.php b/app/i18n/zh-cn/sub.php
index 248b5b188..bb3a05b59 100644
--- a/app/i18n/zh-cn/sub.php
+++ b/app/i18n/zh-cn/sub.php
@@ -90,6 +90,8 @@ return array(
 		'title_add' => '添加订阅源',
 		'ttl' => '最小自动更新间隔',
 		'url' => '源地址',
+		'useragent' => 'Set the user agent for fetching this feed',	// TODO - Translation
+		'useragent_help' => 'Example: <kbd>Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:86.0)</kbd>',	// TODO - Translation
 		'validator' => '检查订阅源有效性',
 		'website' => '网站地址',
 		'websub' => 'WebSub 即时通知',