Make rate limit function more more resilient (hestiacp#2703)

* Make rate limit function more more resilient

* Add update script

* Change default value to no

Co-authored-by: Raphael <rs@scit.ch>

Author: jaapmarcus

bin/v-add-mail-domain

@@ -18,7 +18,7 @@ antivirus=${4-yes}
 dkim=${5-yes}
 dkim_size=${6-1024}
 restart=${7-yes}
-reject=${8-yes}
+reject=${8-no}
 
 # Includes
 # shellcheck source=/etc/hestiacp/hestia.conf

install/deb/exim/exim4.conf.4.94.template

@@ -138,7 +138,7 @@ acl_check_rcpt:
 
 # Limit per email account for SMTP auhenticated users
   deny    message       = Email account $authenticated_id is sending too many emails - rate overlimit = $sender_rate / $sender_rate_period
-          set acl_c_msg_limit = ${if exists{/etc/exim4/domains/${lookup{$sender_address_domain}dsearch{/etc/exim4/domains/}}/limits} {${extract{1}{:}{${lookup{$authenticated_id}lsearch{/etc/exim4/domains/${lookup{$sender_address_domain}dsearch{/etc/exim4/domains/}}/limits}}}}} {${readfile{/etc/exim4/limit.conf}}} }
+          set acl_c_msg_limit  = ${if exists{/etc/exim4/domains/${lookup{${domain:$authenticated_id}}dsearch{/etc/exim4/domains/}}/limits}{${lookup {$authenticated_id} lsearch{/etc/exim4/domains/${lookup{${domain:$authenticated_id}}dsearch{/etc/exim4/domains/}}/limits}{$value}{${readfile{/etc/exim4/limit.conf}}}}}{${readfile{/etc/exim4/limit.conf}}} } 
           ratelimit     = $acl_c_msg_limit / 1h / strict/ $authenticated_id
 
   warn    ratelimit     = ${eval:$acl_c_msg_limit / 2} / 1h / strict / $authenticated_id

install/deb/exim/exim4.conf.template

@@ -138,7 +138,7 @@ acl_check_rcpt:
 
 # Limit per email account for SMTP auhenticated users
   deny    message       = Email account $authenticated_id is sending too many emails - rate overlimit = $sender_rate / $sender_rate_period
-          set acl_c_msg_limit = ${if exists{/etc/exim4/domains/${lookup{$sender_address_domain}dsearch{/etc/exim4/domains/}}/limits} {${extract{1}{:}{${lookup{$authenticated_id}lsearch{/etc/exim4/domains/${lookup{$sender_address_domain}dsearch{/etc/exim4/domains/}}/limits}}}}} {${readfile{/etc/exim4/limit.conf}}} }
+      set acl_c_msg_limit  = ${if exists{/etc/exim4/domains/${lookup{${domain:$authenticated_id}}dsearch{/etc/exim4/domains/}}/limits}{${lookup {$authenticated_id} lsearch{/etc/exim4/domains/${lookup{${domain:$authenticated_id}}dsearch{/etc/exim4/domains/}}/limits}{$value}{${readfile{/etc/exim4/limit.conf}}}}}{${readfile{/etc/exim4/limit.conf}}} } 
           ratelimit     = $acl_c_msg_limit / 1h / strict/ $authenticated_id
 
   warn    ratelimit     = ${eval:$acl_c_msg_limit / 2} / 1h / strict / $authenticated_id

install/upgrade/versions/1.6.2.sh

@@ -21,6 +21,13 @@ upgrade_config_set_value 'UPGRADE_UPDATE_MAIL_TEMPLATES' 'no'
 upgrade_config_set_value 'UPGRADE_REBUILD_USERS' 'no'
 upgrade_config_set_value 'UPGRADE_UPDATE_FILEMANAGER_CONFIG' 'false'
 
+alc=$(cat exim4.conf.template | grep '${lookup{${domain:$authenticated_id}}dsearch{/etc/exim4/domains/}}/limits');
+if [ -z "$alc" ]; then
+    sed -i 's| set acl_c_msg_limit|#string1\n#replaceme|'  /etc/exim4/exim4.conf.template
+    sed -i '/#replaceme/d' /etc/exim4/exim4.conf.template
+    sed -i 's|#string1|set acl_c_msg_limit  = \${if exists{/etc/exim4/domains/\${lookup{\${domain:\$authenticated_id}}dsearch{/etc/exim4/domains/}}/limits}{\${lookup {\$authenticated_id} lsearch{/etc/exim4/domains/\${lookup{${domain:\$authenticated_id}}dsearch{/etc/exim4/domains/}}/limits}{\$value}{\${readfile{/etc/exim4/limit.conf}}}}}{\${readfile{/etc/exim4/limit.conf}}} }|g' /etc/exim4/exim4.conf.template
+fi
+
 system_filter=$(cat /etc/exim4/exim4.conf.template | grep 'system_filter');
 if [ -z "$system_filter" ]; then
     sed -i '/SMTP_RELAY_PASS = \${lookup{pass}lsearch{SMTP_RELAY_FILE}}/a #shouldberemoved\n# Custom Filter\nsystem_filter = \/etc\/exim4\/system.filter\nsystem_filter_user = Debian-exim' /etc/exim4/exim4.conf.template