Add username hint for permissions during install (#3373)

The username is retrieved by 2 different means to support different
configurations and architectures. If there is no way to find the
username, the "unknown" string is displayed instead.

See #2758

19 files changed, 67 insertions, 31 deletions

diff --git a/app/i18n/cz/install.php b/app/i18n/cz/install.php
index 36b1e9f11..4d97a92bf 100644
--- a/app/i18n/cz/install.php
+++ b/app/i18n/cz/install.php
@@ -92,6 +92,7 @@ return array(
 			'nok' => 'Zkontrolujte oprávnění adresáře <em>%s</em>. HTTP server musí mít do tohoto adresáře práva zápisu.',
 			'ok' => 'Permissions on the temp directory are good.',	// TODO - Translation
 		),
+		'unknown_process_username' => 'unknown',	// TODO - Translation
 		'users' => array(
 			'nok' => 'Zkontrolujte oprávnění adresáře <em>%s</em>. HTTP server musí mít do tohoto adresáře práva zápisu.',
 			'ok' => 'Oprávnění adresáře users jsou v pořádku.',
diff --git a/app/i18n/de/install.php b/app/i18n/de/install.php
index cc6563887..693b0b2d7 100644
--- a/app/i18n/de/install.php
+++ b/app/i18n/de/install.php
@@ -92,6 +92,7 @@ return array(
 			'nok' => 'Überprüfen Sie die Berechtigungen des Verzeichnisses <em>%s</em>. Der HTTP-Server muss Schreibrechte besitzen.',
 			'ok' => 'Die Berechtigungen des Temp Verzeichnisses sind in Ordnung.',
 		),
+		'unknown_process_username' => 'unknown',	// TODO - Translation
 		'users' => array(
 			'nok' => 'Überprüfen Sie die Berechtigungen des Verzeichnisses <em>%s</em>. Der HTTP-Server muss Schreibrechte besitzen.',
 			'ok' => 'Die Berechtigungen des Verzeichnisses <em>%s</em> sind in Ordnung.',
diff --git a/app/i18n/en-us/install.php b/app/i18n/en-us/install.php
index 3c28b0c37..9e8b0ff9e 100644
--- a/app/i18n/en-us/install.php
+++ b/app/i18n/en-us/install.php
@@ -33,7 +33,7 @@ return array(
 		'_' => 'Checks',
 		'already_installed' => 'We have detected that FreshRSS is already installed!',
 		'cache' => array(
-			'nok' => 'Check permissions on the <em>%s</em> directory. The HTTP server must have write permission.',
+			'nok' => 'Check permissions on the <em>%1$s</em> directory for <em>%2$s</em> user. The HTTP server must have write permissions.',
 			'ok' => 'Permissions on the cache directory are good.',
 		),
 		'ctype' => array(
@@ -45,7 +45,7 @@ return array(
 			'ok' => 'You have the cURL library.',
 		),
 		'data' => array(
-			'nok' => 'Check permissions on the <em>%s</em> directory. The HTTP server must have write permission.',
+			'nok' => 'Check permissions on the <em>%1$s</em> directory for <em>%2$s</em> user. The HTTP server must have write permissions.',
 			'ok' => 'Permissions on the data directory are good.',
 		),
 		'dom' => array(
@@ -53,7 +53,7 @@ return array(
 			'ok' => 'You have the required library to browse the DOM.',
 		),
 		'favicons' => array(
-			'nok' => 'Check permissions on the <em>%s</em> directory. The HTTP server must have write permission.',
+			'nok' => 'Check permissions on the <em>%1$s</em> directory for <em>%2$s</em> user. The HTTP server must have write permissions.',
 			'ok' => 'Permissions on the favicons directory are good.',
 		),
 		'fileinfo' => array(
@@ -89,11 +89,12 @@ return array(
 			'ok' => 'Your PHP version, %s, is compatible with FreshRSS.',
 		),
 		'tmp' => array(
-			'nok' => 'Check permissions on the <em>%s</em> directory. The HTTP server must have write permissions.',
+			'nok' => 'Check permissions on the <em>%1$s</em> directory for <em>%2$s</em> user. The HTTP server must have write permissions.',
 			'ok' => 'Permissions on the temp directory are good.',
 		),
+		'unknown_process_username' => 'unknown',
 		'users' => array(
-			'nok' => 'Check permissions on the <em>%s</em> directory. The HTTP server must have write permissions.',
+			'nok' => 'Check permissions on the <em>%1$s</em> directory for <em>%2$s</em> user. The HTTP server must have write permissions.',
 			'ok' => 'Permissions on the users directory are good.',
 		),
 		'xml' => array(
diff --git a/app/i18n/en/install.php b/app/i18n/en/install.php
index 3c28b0c37..9551d1d75 100644
--- a/app/i18n/en/install.php
+++ b/app/i18n/en/install.php
@@ -33,7 +33,7 @@ return array(
 		'_' => 'Checks',
 		'already_installed' => 'We have detected that FreshRSS is already installed!',
 		'cache' => array(
-			'nok' => 'Check permissions on the <em>%s</em> directory. The HTTP server must have write permission.',
+			'nok' => 'Check permissions on the <em>%1$s</em> directory for <em>%2$s</em> user. The HTTP server must have write permission.',
 			'ok' => 'Permissions on the cache directory are good.',
 		),
 		'ctype' => array(
@@ -45,7 +45,7 @@ return array(
 			'ok' => 'You have the cURL library.',
 		),
 		'data' => array(
-			'nok' => 'Check permissions on the <em>%s</em> directory. The HTTP server must have write permission.',
+			'nok' => 'Check permissions on the <em>%1$s</em> directory for <em>%2$s</em> user. The HTTP server must have write permission.',
 			'ok' => 'Permissions on the data directory are good.',
 		),
 		'dom' => array(
@@ -53,7 +53,7 @@ return array(
 			'ok' => 'You have the required library to browse the DOM.',
 		),
 		'favicons' => array(
-			'nok' => 'Check permissions on the <em>%s</em> directory. The HTTP server must have write permission.',
+			'nok' => 'Check permissions on the <em>%1$s</em> directory for <em>%2$s</em> user. The HTTP server must have write permission.',
 			'ok' => 'Permissions on the favicons directory are good.',
 		),
 		'fileinfo' => array(
@@ -89,11 +89,12 @@ return array(
 			'ok' => 'Your PHP version, %s, is compatible with FreshRSS.',
 		),
 		'tmp' => array(
-			'nok' => 'Check permissions on the <em>%s</em> directory. The HTTP server must have write permissions.',
+			'nok' => 'Check permissions on the <em>%1$s</em> directory for <em>%2$s</em> user. The HTTP server must have write permissions.',
 			'ok' => 'Permissions on the temp directory are good.',
 		),
+		'unknown_process_username' => 'unknown',
 		'users' => array(
-			'nok' => 'Check permissions on the <em>%s</em> directory. The HTTP server must have write permissions.',
+			'nok' => 'Check permissions on the <em>%1$s</em> directory for <em>%2$s</em> user. The HTTP server must have write permissions.',
 			'ok' => 'Permissions on the users directory are good.',
 		),
 		'xml' => array(
diff --git a/app/i18n/es/install.php b/app/i18n/es/install.php
index ef7e1e70b..cbe7140b3 100755
--- a/app/i18n/es/install.php
+++ b/app/i18n/es/install.php
@@ -92,6 +92,7 @@ return array(
 			'nok' => 'Revisa los permisos en el directorio <em>%s</em>. El servidor HTTP debe contar con permisos de escritura.',
 			'ok' => 'Permissions on the temp directory are good.',	// TODO - Translation
 		),
+		'unknown_process_username' => 'unknown',	// TODO - Translation
 		'users' => array(
 			'nok' => 'Revisa los permisos en el directorio <em>%s</em>. El servidor HTTP debe contar con permisos de escritura.',
 			'ok' => 'Los permisos en el directorio users son correctos.',
diff --git a/app/i18n/fr/install.php b/app/i18n/fr/install.php
index 3ee38d04d..6b36d2b7b 100644
--- a/app/i18n/fr/install.php
+++ b/app/i18n/fr/install.php
@@ -33,7 +33,7 @@ return array(
 		'_' => 'Vérifications',
 		'already_installed' => 'FreshRSS semble avoir déjà été installé !',
 		'cache' => array(
-			'nok' => 'Veuillez vérifier les droits sur le répertoire <em>%s</em>. Le serveur HTTP doit être capable d’écrire dedans.',
+			'nok' => 'Veuillez vérifier les droits de l’utilisateur <em>%2$s</em> sur le répertoire <em>%1$s</em>. Le serveur HTTP doit être capable d’écrire dedans.',
 			'ok' => 'Les droits sur le répertoire de cache sont bons.',
 		),
 		'ctype' => array(
@@ -45,7 +45,7 @@ return array(
 			'ok' => 'Vous disposez de cURL.',
 		),
 		'data' => array(
-			'nok' => 'Veuillez vérifier les droits sur le répertoire <em>%s</em>. Le serveur HTTP doit être capable d’écrire dedans.',
+			'nok' => 'Veuillez vérifier les droits de l’utilisateur <em>%2$s</em> sur le répertoire <em>%1$s</em>. Le serveur HTTP doit être capable d’écrire dedans.',
 			'ok' => 'Les droits sur le répertoire de data sont bons.',
 		),
 		'dom' => array(
@@ -53,7 +53,7 @@ return array(
 			'ok' => 'Vous disposez de la librairie pour parcourir le DOM.',
 		),
 		'favicons' => array(
-			'nok' => 'Veuillez vérifier les droits sur le répertoire <em>%s</em>. Le serveur HTTP doit être capable d’écrire dedans.',
+			'nok' => 'Veuillez vérifier les droits de l’utilisateur <em>%2$s</em> sur le répertoire <em>%1$s</em>. Le serveur HTTP doit être capable d’écrire dedans.',
 			'ok' => 'Les droits sur le répertoire des favicons sont bons.',
 		),
 		'fileinfo' => array(
@@ -89,11 +89,12 @@ return array(
 			'ok' => 'Votre version de PHP est la %s, qui est compatible avec FreshRSS.',
 		),
 		'tmp' => array(
-			'nok' => 'Veuillez vérifier les droits sur le répertoire <em>%s</em>. Le serveur HTTP doit être capable d’écrire dedans.',
+			'nok' => 'Veuillez vérifier les droits de l’utilisateur <em>%2$s</em> sur le répertoire <em>%1$s</em>. Le serveur HTTP doit être capable d’écrire dedans.',
 			'ok' => 'Les droits sur le répertoire temporaire sont bons.',
 		),
+		'unknown_process_username' => 'inconnu',
 		'users' => array(
-			'nok' => 'Veuillez vérifier les droits sur le répertoire <em>%s</em>. Le serveur HTTP doit être capable d’écrire dedans.',
+			'nok' => 'Veuillez vérifier les droits de l’utilisateur <em>%2$s</em> sur le répertoire <em>%1$s</em>. Le serveur HTTP doit être capable d’écrire dedans.',
 			'ok' => 'Les droits sur le répertoire des utilisateurs sont bons.',
 		),
 		'xml' => array(
diff --git a/app/i18n/he/install.php b/app/i18n/he/install.php
index 1b83c8a4e..e36ff6226 100644
--- a/app/i18n/he/install.php
+++ b/app/i18n/he/install.php
@@ -33,7 +33,7 @@ return array(
 		'_' => 'בדיקות',
 		'already_installed' => 'We have detected that FreshRSS is already installed!',	// TODO - Translation
 		'cache' => array(
-			'nok' => 'Check permissions on the <em>%s</em> directory. The HTTP server must have write permission.',	// TODO - Translation
+			'nok' => 'Check permissions on the <em>%1$s</em> directory for <em>%2$s</em> user. The HTTP server must have write permissions.',
 			'ok' => 'ההרשאות בתיקיית המטמון תקינות',
 		),
 		'ctype' => array(
@@ -45,7 +45,7 @@ return array(
 			'ok' => 'יש לכם את גירסת %s של cURL',
 		),
 		'data' => array(
-			'nok' => 'Check permissions on the <em>%s</em> directory. The HTTP server must have write permission.',	// TODO - Translation
+			'nok' => 'Check permissions on the <em>%1$s</em> directory for <em>%2$s</em> user. The HTTP server must have write permissions.',
 			'ok' => 'ההרשאות בתיקיית הדאטא תקינות',
 		),
 		'dom' => array(
@@ -53,7 +53,7 @@ return array(
 			'ok' => 'הספרייה הנדרשת לסיור ב DOM מותקנת',
 		),
 		'favicons' => array(
-			'nok' => 'Check permissions on the <em>%s</em> directory. The HTTP server must have write permission.',	// TODO - Translation
+			'nok' => 'Check permissions on the <em>%1$s</em> directory for <em>%2$s</em> user. The HTTP server must have write permissions.',
 			'ok' => 'ההרשאות בתיקיית הfavicons תקינות',
 		),
 		'fileinfo' => array(
@@ -89,11 +89,12 @@ return array(
 			'ok' => 'גירסת PHP שלכם היא %s, שתואמת ל FreshRSS',
 		),
 		'tmp' => array(
-			'nok' => 'Check permissions on the <em>%s</em> directory. The HTTP server must have write permissions.',	// TODO - Translation
+			'nok' => 'Check permissions on the <em>%1$s</em> directory for <em>%2$s</em> user. The HTTP server must have write permissions.',	// TODO - Translation
 			'ok' => 'Permissions on the temp directory are good.',	// TODO - Translation
 		),
+		'unknown_process_username' => 'unknown',	// TODO - Translation
 		'users' => array(
-			'nok' => 'Check permissions on the <em>%s</em> directory. The HTTP server must have write permissions.',	// TODO - Translation
+			'nok' => 'Check permissions on the <em>%1$s</em> directory for <em>%2$s</em> user. The HTTP server must have write permissions.',	// TODO - Translation
 			'ok' => 'Permissions on the users directory are good.',	// TODO - Translation
 		),
 		'xml' => array(
diff --git a/app/i18n/it/install.php b/app/i18n/it/install.php
index a19db50bb..e1eab2ca4 100644
--- a/app/i18n/it/install.php
+++ b/app/i18n/it/install.php
@@ -92,6 +92,7 @@ return array(
 			'nok' => 'Verifica i permessi sulla cartella <em>%s</em>. Il server HTTP deve avere i permessi per scriverci dentro.',
 			'ok' => 'Permissions on the temp directory are good.',	// TODO - Translation
 		),
+		'unknown_process_username' => 'unknown',	// TODO - Translation
 		'users' => array(
 			'nok' => 'Verifica i permessi sulla cartella <em>%s</em>. Il server HTTP deve avere i permessi per scriverci dentro.',
 			'ok' => 'I permessi sulla cartella users sono corretti.',
diff --git a/app/i18n/kr/install.php b/app/i18n/kr/install.php
index 64d76000d..64e1680a4 100644
--- a/app/i18n/kr/install.php
+++ b/app/i18n/kr/install.php
@@ -92,6 +92,7 @@ return array(
 			'nok' => '<em>%s</em> 디렉토리의 권한을 확인하세요. HTTP 서버가 쓰기 권한을 가지고 있어야 합니다.',
 			'ok' => 'Permissions on the temp directory are good.',	// TODO - Translation
 		),
+		'unknown_process_username' => 'unknown',	// TODO - Translation
 		'users' => array(
 			'nok' => '<em>%s</em> 디렉토리의 권한을 확인하세요. HTTP 서버가 쓰기 권한을 가지고 있어야 합니다.',
 			'ok' => 'users 디렉토리의 권한이 올바르게 설정되어 있습니다.',
diff --git a/app/i18n/nl/install.php b/app/i18n/nl/install.php
index 1b7a3e839..739eb44c7 100644
--- a/app/i18n/nl/install.php
+++ b/app/i18n/nl/install.php
@@ -92,6 +92,7 @@ return array(
 			'nok' => 'Controleer permissies van de <em>%s</em> map. HTTP server moet rechten hebben om er in te kunnen schrijven.',
 			'ok' => 'Permissions on the temp directory are good.',	// TODO - Translation
 		),
+		'unknown_process_username' => 'unknown',	// TODO - Translation
 		'users' => array(
 			'nok' => 'Controleer permissies van de <em>%s</em> map. HTTP server moet rechten hebben om er in te kunnen schrijven.',
 			'ok' => 'Permissies van de users map zijn goed.',
diff --git a/app/i18n/oc/install.php b/app/i18n/oc/install.php
index 6c2bb3b28..80817f808 100644
--- a/app/i18n/oc/install.php
+++ b/app/i18n/oc/install.php
@@ -92,6 +92,7 @@ return array(
 			'nok' => 'Volgatz verificar los dreches sul repertòri <em>%s</em>. Lo servidor HTTP deu poder escriure dedins.',
 			'ok' => 'Permissions on the temp directory are good.',	// TODO - Translation
 		),
+		'unknown_process_username' => 'unknown',	// TODO - Translation
 		'users' => array(
 			'nok' => 'Volgatz verificar los dreches sul repertòri <em>%s</em>. Lo servidor HTTP deu poder escriure dedins.',
 			'ok' => 'Los dreches sul repertòri dels utilizaires son bons.',
diff --git a/app/i18n/pl/install.php b/app/i18n/pl/install.php
index 34e7e12df..658744453 100644
--- a/app/i18n/pl/install.php
+++ b/app/i18n/pl/install.php
@@ -33,7 +33,7 @@ return array(
 		'_' => 'Checks',	// TODO - Translation
 		'already_installed' => 'We have detected that FreshRSS is already installed!',	// TODO - Translation
 		'cache' => array(
-			'nok' => 'Check permissions on the <em>%s</em> directory. The HTTP server must have write permission.',	// TODO - Translation
+			'nok' => 'Check permissions on the <em>%1$s</em> directory for <em>%2$s</em> user. The HTTP server must have write permissions.',
 			'ok' => 'Permissions on the cache directory are good.',	// TODO - Translation
 		),
 		'ctype' => array(
@@ -45,7 +45,7 @@ return array(
 			'ok' => 'You have the cURL library.',	// TODO - Translation
 		),
 		'data' => array(
-			'nok' => 'Check permissions on the <em>%s</em> directory. The HTTP server must have write permission.',	// TODO - Translation
+			'nok' => 'Check permissions on the <em>%1$s</em> directory for <em>%2$s</em> user. The HTTP server must have write permissions.',
 			'ok' => 'Permissions on the data directory are good.',	// TODO - Translation
 		),
 		'dom' => array(
@@ -53,7 +53,7 @@ return array(
 			'ok' => 'You have the required library to browse the DOM.',	// TODO - Translation
 		),
 		'favicons' => array(
-			'nok' => 'Check permissions on the <em>%s</em> directory. The HTTP server must have write permission.',	// TODO - Translation
+			'nok' => 'Check permissions on the <em>%1$s</em> directory for <em>%2$s</em> user. The HTTP server must have write permissions.',
 			'ok' => 'Permissions on the favicons directory are good.',	// TODO - Translation
 		),
 		'fileinfo' => array(
@@ -89,11 +89,12 @@ return array(
 			'ok' => 'Your PHP version, %s, is compatible with FreshRSS.',	// TODO - Translation
 		),
 		'tmp' => array(
-			'nok' => 'Check permissions on the <em>%s</em> directory. The HTTP server must have write permissions.',	// TODO - Translation
+			'nok' => 'Check permissions on the <em>%1$s</em> directory for <em>%2$s</em> user. The HTTP server must have write permissions.',	// TODO - Translation
 			'ok' => 'Permissions on the temp directory are good.',	// TODO - Translation
 		),
+		'unknown_process_username' => 'unknown',	// TODO - Translation
 		'users' => array(
-			'nok' => 'Check permissions on the <em>%s</em> directory. The HTTP server must have write permissions.',	// TODO - Translation
+			'nok' => 'Check permissions on the <em>%1$s</em> directory for <em>%2$s</em> user. The HTTP server must have write permissions.',	// TODO - Translation
 			'ok' => 'Permissions on the users directory are good.',	// TODO - Translation
 		),
 		'xml' => array(
diff --git a/app/i18n/pt-br/install.php b/app/i18n/pt-br/install.php
index ae56cf770..e74add675 100644
--- a/app/i18n/pt-br/install.php
+++ b/app/i18n/pt-br/install.php
@@ -92,6 +92,7 @@ return array(
 			'nok' => 'Verifiquei as permissões no diretório <em>%s</em>. O servidor HTTP deve ter direitos para escrever dentro desta pasta.',
 			'ok' => 'Permissions on the temp directory are good.',	// TODO - Translation
 		),
+		'unknown_process_username' => 'unknown',	// TODO - Translation
 		'users' => array(
 			'nok' => 'Verifiquei as permissões no diretório <em>%s</em>. O servidor HTTP deve ter direitos para escrever dentro desta pasta.',
 			'ok' => 'Permissões no diretório users estão corretos.',
diff --git a/app/i18n/ru/install.php b/app/i18n/ru/install.php
index 797d708b7..7925a609e 100644
--- a/app/i18n/ru/install.php
+++ b/app/i18n/ru/install.php
@@ -92,6 +92,7 @@ return array(
 			'nok' => 'Проверьте права доступа к папке <em>%s</em> . Сервер HTTP должен иметь права на запись в эту папку.',
 			'ok' => 'Permissions on the temp directory are good.',	// TODO - Translation
 		),
+		'unknown_process_username' => 'unknown',	// TODO - Translation
 		'users' => array(
 			'nok' => 'Проверьте права доступа к папке <em>%s</em> . Сервер HTTP должен иметь права на запись в эту папку.',
 			'ok' => 'Права на папку users в порядке.',
diff --git a/app/i18n/sk/install.php b/app/i18n/sk/install.php
index 17dc475f3..9cf9a7f45 100644
--- a/app/i18n/sk/install.php
+++ b/app/i18n/sk/install.php
@@ -92,6 +92,7 @@ return array(
 			'nok' => 'Skontrolujte oprávnenia prístupu do priečinku <em>%s</em>. HTTP server musí mať právo doň zapisovať.',
 			'ok' => 'Permissions on the temp directory are good.',	// TODO - Translation
 		),
+		'unknown_process_username' => 'unknown',	// TODO - Translation
 		'users' => array(
 			'nok' => 'Skontrolujte oprávnenia prístupu do priečinku <em>%s</em>. HTTP server musí mať právo doň zapisovať.',
 			'ok' => 'Oprávnenia prístupu do priečinku používateľov sú OK.',
diff --git a/app/i18n/tr/install.php b/app/i18n/tr/install.php
index 11d21cf1a..fe5991939 100644
--- a/app/i18n/tr/install.php
+++ b/app/i18n/tr/install.php
@@ -92,6 +92,7 @@ return array(
 			'nok' => '<em>%s</em> klasör yetkisini kontrol edin. HTTP yazma yetkisi olmalı.',
 			'ok' => 'Permissions on the temp directory are good.',	// TODO - Translation
 		),
+		'unknown_process_username' => 'unknown',	// TODO - Translation
 		'users' => array(
 			'nok' => '<em>%s</em> klasör yetkisini kontrol edin. HTTP yazma yetkisi olmalı.',
 			'ok' => 'Kullanıcılar klasörü yetkileri sorunsuz.',
diff --git a/app/i18n/zh-cn/install.php b/app/i18n/zh-cn/install.php
index dad23ac17..a06ac6e9c 100644
--- a/app/i18n/zh-cn/install.php
+++ b/app/i18n/zh-cn/install.php
@@ -92,6 +92,7 @@ return array(
 			'nok' => '请检查 <em>%s</em> 目录权限。HTTP 服务器必须有其写入权限。',
 			'ok' => 'Permissions on the temp directory are good.',	// TODO - Translation
 		),
+		'unknown_process_username' => 'unknown',	// TODO - Translation
 		'users' => array(
 			'nok' => '请检查 <em>%s</em> 目录权限。HTTP 服务器必须有其写入权限。',
 			'ok' => 'users 目录权限正常',
diff --git a/app/install.php b/app/install.php
index cfd47910a..286e7cc69 100644
--- a/app/install.php
+++ b/app/install.php
@@ -363,17 +363,35 @@ function printStep0() {
 }
 
 function printStep1Template($key, $value, $messageParams = []) {
-	$message = _t("install.check.{$key}.{$value}", ...$messageParams);
 	if ('ok' === $value) {
+		$message = _t("install.check.{$key}.ok", ...$messageParams);
 		?><p class="alert alert-success"><span class="alert-head"><?= _t('gen.short.ok') ?></span> <?= $message ?></p><?php
 	} else {
+		$message = _t("install.check.{$key}.nok", ...$messageParams);
 		?><p class="alert alert-error"><span class="alert-head"><?= _t('gen.short.damn') ?></span> <?= $message ?></p><?php
 	}
 }
 
+function getProcessUsername() {
+	if (function_exists('posix_getpwuid') && function_exists('posix_geteuid')) {
+		$processUser = posix_getpwuid(posix_geteuid());
+		return $processUser['name'];
+	}
+
+	if (function_exists('exec')) {
+		exec('whoami', $output);
+		if (!empty($output[0])) {
+			return $output[0];
+		}
+	}
+
+	return _t('install.check.unknown_process_username');
+}
+
 // @todo refactor this view with the check_install action
 function printStep1() {
 	$res = checkRequirements();
+	$processUsername = getProcessUsername();
 ?>
 	<noscript><p class="alert alert-warn"><span class="alert-head"><?= _t('gen.short.attention') ?></span> <?= _t('install.javascript_is_better') ?></p></noscript>
 
@@ -388,11 +406,11 @@ function printStep1() {
 	printStep1Template('xml', $res['xml']);
 	printStep1Template('mbstring', $res['mbstring']);
 	printStep1Template('fileinfo', $res['fileinfo']);
-	printStep1Template('data', $res['data'], [DATA_PATH]);
-	printStep1Template('cache', $res['cache'], [CACHE_PATH]);
-	printStep1Template('tmp', $res['tmp'], [TMP_PATH]);
-	printStep1Template('users', $res['users'], [USERS_PATH]);
-	printStep1Template('favicons', $res['favicons'], [DATA_PATH . '/favicons']);
+	printStep1Template('data', $res['data'], [DATA_PATH, $processUsername]);
+	printStep1Template('cache', $res['cache'], [CACHE_PATH, $processUsername]);
+	printStep1Template('tmp', $res['tmp'], [TMP_PATH, $processUsername]);
+	printStep1Template('users', $res['users'], [USERS_PATH, $processUsername]);
+	printStep1Template('favicons', $res['favicons'], [DATA_PATH . '/favicons', $processUsername]);
 	printStep1Template('http_referer', $res['http_referer']);
 	?>
 
diff --git a/cli/i18n/ignore/en-us.php b/cli/i18n/ignore/en-us.php
index 0e76c7206..c8432e83e 100644
--- a/cli/i18n/ignore/en-us.php
+++ b/cli/i18n/ignore/en-us.php
@@ -672,6 +672,7 @@ return array(
 	'install.check.php.ok',
 	'install.check.tmp.nok',
 	'install.check.tmp.ok',
+	'install.check.unknown_process_username',
 	'install.check.users.nok',
 	'install.check.users.ok',
 	'install.check.xml.nok',