#!/bin/bash #################################################################################################### #### author: SlickStack ############################################################################ #### link: https://slickstack.io ################################################################### #### mirror: http://mirrors.slickstack.io/crons/01-cron-often.txt ################################## #### path: /var/www/crons/01-cron-often ############################################################ #### destination: n/a (not a boilerplate) ########################################################## #### purpose: SlickStack core cron job *often* (01/13) will run every ~3 minutes ################### #### module version: Ubuntu 20.04 LTS ############################################################## #### sourced by: root crontab ###################################################################### #### bash aliases: ss cron often ################################################################### #################################################################################################### ## NEVER MODIFY THE ROOT CRONTAB OR SS CORE CRON JOBS OR YOUR STACK WILL STOP WORKING ## ## INSTEAD ADJUST INTERVAL_SS SETTINGS IN SS-CONFIG OR EDIT CUSTOM CRON FILES ## #################################################################################################### #### 01-Cron-Often: Validate (Restore) SS-Config ################################################### #################################################################################################### ## THIS SNIPPET DOES NOT RELY ON SS-CONFIG OR SS-FUNCTIONS ## SNIPPET: ss core cron jobs ## this attempts to restore missing or damaged ss-config using a recent intact backup ## ## however it is not fool-proof since there is no way to verify all settings ## ## validate ss-config ## VALIDATE_SS_CONFIG=$(grep 'SS_BUILD' /var/www/ss-config) if [[ -z "$VALIDATE_SS_CONFIG" ]]; then SS_CONFIG_RECENT_BACKUPS=$(ls -1rta /var/www/meta/ss-config.bak* | tail -n1) SS_CONFIG_BEST_MATCH=$(grep -il 'SS_BUILD' "$SS_CONFIG_RECENT_BACKUPS") rm -rf /tmp/ss-config mv -f "$SS_CONFIG_BEST_MATCH" /tmp/ss-config VALIDATE_TMP_SS_CONFIG=$(grep 'SS_BUILD' /tmp/ss-config) if [[ -n "$VALIDATE_TMP_SS_CONFIG" ]]; then mv -f /tmp/ss-config /var/www/ss-config chown root:root /var/www/ss-config ## must be root:root chmod 0700 /var/www/ss-config ## 0700 means only root can execute fi rm -rf /tmp/ss-config fi #################################################################################################### #### 01-Cron-Often: Validate (Restore) SS-Functions ################################################ #################################################################################################### ## THIS SNIPPET DOES NOT RELY ON SS-CONFIG OR SS-FUNCTIONS ## SNIPPET: ss core cron jobs ## this attempts to restore missing or damaged ss-functions from our public mirrors ## ## we perform this check before cron job tasks as they rely on ss-functions ## ## validate ss-functions ## VALIDATE_SS_FUNCTIONS=$(grep 'SS_EOF' /var/www/ss-functions) if [[ -z "$VALIDATE_SS_FUNCTIONS" ]]; then rm -rf /tmp/ss-functions wget --no-check-certificate -q -4 -t 1 -T 15 -O /tmp/ss-functions http://mirrors.slickstack.io/bash/ss-functions.txt VALIDATE_TMP_SS_FUNCTIONS=$(grep 'SS_EOF' /tmp/ss-functions) if [[ -n "$VALIDATE_TMP_SS_FUNCTIONS" ]]; then mv -f /tmp/ss-functions /var/www/ss-functions chown root:root /var/www/ss-functions ## must be root:root chmod 0700 /var/www/ss-functions ## 0700 means only root can execute else wget --no-check-certificate -q -4 -t 3 -T 30 -O /tmp/ss-functions https://raw.githubusercontent.com/littlebizzy/slickstack/master/bash/ss-functions.txt mv -f /tmp/ss-functions /var/www/ss-functions chown root:root /var/www/ss-functions ## must be root:root chmod 0700 /var/www/ss-functions ## 0700 means only root can execute fi rm -rf /tmp/ss-functions fi #################################################################################################### #### 01-Cron-Often: Validate (Restore) SS-Check + SS-Worker ######################################## #################################################################################################### ## THIS SNIPPET DOES NOT RELY ON SS-CONFIG OR SS-FUNCTIONS ## SNIPPET: ss core cron jobs ## this attempts to restore missing or damaged ss-check and ss-worker bash scripts ## ## they are critical to maintenance tasks and keeping ss core files updated ## ## validate ss-check ## VALIDATE_SS_CHECK=$(grep 'SS_EOF' /var/www/ss-check) if [[ -z "$VALIDATE_SS_CHECK" ]]; then rm -rf /tmp/ss-check wget --no-check-certificate -q -4 -t 1 -T 15 -O /tmp/ss-check http://mirrors.slickstack.io/bash/ss-check.txt VALIDATE_TMP_SS_CHECK=$(grep 'SS_EOF' /tmp/ss-check) if [[ -n "$VALIDATE_TMP_SS_CHECK" ]]; then mv -f /tmp/ss-check /var/www/ss-check chown root:root /var/www/ss-check ## must be root:root chmod 0700 /var/www/ss-check ## 0700 means only root can execute else wget --no-check-certificate -q -4 -t 3 -T 30 -O /tmp/ss-check https://raw.githubusercontent.com/littlebizzy/slickstack/master/bash/ss-check.txt mv -f /tmp/ss-check /var/www/ss-check chown root:root /var/www/ss-check ## must be root:root chmod 0700 /var/www/ss-check ## 0700 means only root can execute fi rm -rf /tmp/ss-check fi ## validate ss-worker ## VALIDATE_SS_WORKER=$(grep 'SS_EOF' /var/www/ss-worker) if [[ -z "$VALIDATE_SS_WORKER" ]]; then rm -rf /tmp/ss-worker wget --no-check-certificate -q -4 -t 1 -T 15 -O /tmp/ss-worker http://mirrors.slickstack.io/bash/ss-worker.txt VALIDATE_TMP_SS_WORKER=$(grep 'SS_EOF' /tmp/ss-worker) if [[ -n "$VALIDATE_TMP_SS_WORKER" ]]; then mv -f /tmp/ss-worker /var/www/ss-worker chown root:root /var/www/ss-worker ## must be root:root chmod 0700 /var/www/ss-worker ## 0700 means only root can execute else wget --no-check-certificate -q -4 -t 3 -T 30 -O /tmp/ss-worker https://raw.githubusercontent.com/littlebizzy/slickstack/master/bash/ss-worker.txt mv -f /tmp/ss-worker /var/www/ss-worker chown root:root /var/www/ss-worker ## must be root:root chmod 0700 /var/www/ss-worker ## 0700 means only root can execute fi rm -rf /tmp/ss-worker fi #################################################################################################### #### 01-Cron-Often: Source SS-Config + SS-Functions (After Validated) ############################## #################################################################################################### ## at this point we know that ss-config and ss-functions exist or have been restored ## ## so we source them now to carry on with custom and scheduled cron job tasks ## ## source ss-config ## source /var/www/ss-config ## source ss-functions ## source /var/www/ss-functions ## BELOW THIS RELIES ON SS-CONFIG AND SS-FUNCTIONS #################################################################################################### #### 01-Cron-Often: Run Custom Tasks (EDIT SOURCED FILES) ########################################## #################################################################################################### ## this will run custom shell commands that you can save in a reserved filename below ## ## carefully consider server resources and best practices before customizing ## ## run 01-cron-often-custom ## source "$PATH_01_CRON_OFTEN_CUSTOM" #################################################################################################### #### 01-Cron-Often: Run Scheduled Tasks (DO NOT EDIT) ############################################## #################################################################################################### ## the below tasks will be called if configured to run at this interval in ss-config ## ## certain tasks are automatically called if the relevant interval is missing ## ## run ss-check if set to often or if not defined (default) ## if [[ "$INTERVAL_SS_CHECK" == "often" ]] || [[ -z "$INTERVAL_SS_CHECK" ]]; then source "$PATH_SS_CHECK" fi ## run ss-dump-database if set to often ## if [[ "$INTERVAL_SS_DUMP_DATABASE" == "often" ]]; then source "$PATH_SS_DUMP_DATABASE" fi #################################################################################################### #### 01-Cron-Often: Reset Permissions (SS Core Cron Jobs + SS Core Bash Scripts) ################### #################################################################################################### ## THIS SNIPPET DOES NOT RELY ON SS-CONFIG OR SS-FUNCTIONS ## SNIPPET: ss core cron jobs ## we hardcode this permissions reset snippet in all ss core cron jobs for redundancy ## ## chmod 0700 means only the root/sudo users can execute the ss core scripts ## ## reset permissions ## chown root:root /var/www/ss* ## must be root:root chown root:root /var/www/crons/*cron* ## must be root:root chown root:root /var/www/crons/custom/*cron* ## must be root:root chmod 0700 /var/www/ss* ## 0700 means only root can execute chmod 0700 /var/www/crons/*cron* ## 0700 means only root can execute chmod 0700 /var/www/crons/custom/*cron* ## 0700 means only root can execute #################################################################################################### #### 01-Cron-Often: Delete Lock File ############################################################### #################################################################################################### ## here we delete the lock file associated with this cron job to clear the cron queue ## ## this is technically not necessary but we do it anyway for extra security ## ## delete lock ## rm "$LOCK_01_CRON_OFTEN" #################################################################################################### #### 01-Cron-Often: Touch Timestamp File ########################################################### #################################################################################################### ## this is a dummy timestamp file that will remember the last time this script was run ## ## it can be useful for developer reference and is sometimes used by SlickStack ## ## script timestamp ## touch "$TIMESTAMP_01_CRON_OFTEN" #################################################################################################### #### SlickStack: External References Used To Improve This Script (Thanks, Interwebz) ############### #################################################################################################### ## Ref: https://bash.cyberciti.biz/guide/Setting_up_permissions_on_a_script ## Ref: https://stackoverflow.com/questions/22861580/bash-script-check-if-a-file-contains-a-specific-line ## Ref: https://stackoverflow.com/questions/4749330/how-to-test-if-string-exists-in-file-with-bash/14201583 ## Ref: https://stackoverflow.com/questions/11287861/how-to-check-if-a-file-contains-a-specific-string-using-bash ## Ref: https://stackoverflow.com/questions/4749330/how-to-test-if-string-exists-in-file-with-bash- ## Ref: https://stackoverflow.com/questions/42377739/while-file-doesnt-contain-string-bash ## Ref: https://stackoverflow.com/questions/29378566/i-just-assigned-a-variable-but-echo-variable-shows-something-else ## Ref: https://fluentcrm.com/docs/replace-wordpress-cron-with-a-real-cron-job/ ## Ref: https://stackoverflow.com/questions/18656678/how-to-get-path-of-the-php-binary-on-server-where-it-is-located ## Ref: https://tldp.org/LDP/abs/html/nestedifthen.html ## Ref: https://unix.stackexchange.com/questions/282901/find-latest-file-created-in-folder-and-grep-contents ## Ref: https://serverfault.com/questions/69283/when-to-use-single-quote-double-quote-in-grep ## Ref: https://unix.stackexchange.com/questions/277412/cp-vs-mv-which-operation-is-more-efficient ## Ref: https://programmerr47.medium.com/dont-put-constants-everywhere-b3bb9cb0bbae ## Ref: https://stackoverflow.com/questions/4234129/should-i-use-constants-instead-of-strings-even-if-the-strings-are-only-ever-used ## Ref: https://unix.stackexchange.com/questions/236659/what-is-the-point-of-mv-f ## Ref: https://stackoverflow.com/questions/89989/is-there-a-curl-wget-option-that-says-not-to-save-files-upon-http-errors ## Ref: https://unix.stackexchange.com/questions/47584/in-a-bash-script-using-the-conditional-or-in-an-if-statement ## Ref: https://serverfault.com/questions/52034/what-is-the-difference-between-double-and-single-square-brackets-in-bash ## SS_EOF