validJobUser.sh #2

#!/bin/bash
# ==========
# $File: //guest/amo/scripts/triggers/validJobUser.sh $
# $Revision: #2 $
# $Change: 26333 $
#
# $Author: amo $
# $DateTimeTZ: 2020/02/20 03:16:55 -0800 PST $
# ----------
# Purpose:
# script to check if the username passed to this script exists in the database
# 
# Example trigger entry:
# validJobUser form-save job "%//scripts/triggers/validJobUser.sh% admin %serverport% myWorkspace %formfile%"
# 
# ----------
# This is an example script, and is not supported by Perforce Software. 
# While it does some basic sanity checks (confirming that 'p4' is available, and that there's a valid 
# login ticket), it would benefit from more robust exception-handling, some more thorough testing. 
#
# NB, originally, the user was grabbed from the 'p4 job' command using the command below. However, 
# brand-new jobs are named 'new' and this 'p4 job' command doesn't retrieve anything. 
# Had to switch to the 'formfile' approach to account for this. 
# -> user=`$p4ztag -F %Assignee% job -o $jobname`
# ==========

# name the logfile based on the script's name
# log="$(basename $0).log" # this works if the script is not in the depot, otherwise it picks the tmp filename.
this=validJobUser.sh
log=validJobUser.log

# create a $(timestamp function
timestamp(){
	date +"%Y-%m-%d-%T"
}

# initial log output
# printf "%s %s: starting... (actual script: %s)\n" $(timestamp) $this $0 >> $log

# the parameters we're expecting (note - not checked/validated)
adminuser=$1
port=$2
client=$3
jobname=$4  # actually formfile - we're having to parse the tmp file. 

# messages 
usage="USAGE: $0 adminuser port client job-formname"
nocli="ERROR: 'p4' client not found"
nocon="ERROR: 'p4' not logged in or no connection available"
unknown="ERROR: Trying to assign job to unknown user:"

# checking parameters provided
if [ "$#" -ne 4 ]; then printf "%s\n" "$usage" >> $log; exit 4; fi

# check we have 'p4' available
p4cli=`which p4`
if [ "$?" -ne 0 ]; then printf "%s\n%s\n" "$usage" "$nocli" >> $log; exit 2; fi

# 'p4' exists; create the 'connection string' (tagged mode)
p4ztag="$p4cli -u $adminuser -p $port -c $client -ztag"

# test for a current login ticket
$p4ztag login -s > /dev/null 2>&1
if [ $? -ne 0 ]; then printf "%s\n%s\n" "$usage" "$nocon" >> $log; exit 3; fi

# get 'Assignee' from job formfile
user=`grep ^Assignee $jobname | sed -e "s/Assignee:\s//g" 2>&1`
usery="$user found in user list - accepted job."
usern="$user not found in user list - rejecting."

# count the number of times 'Assignee' user appears in 'p4 users'. Would be 1 or 0, realistically.
ucount=`$p4ztag -F %User% users $user 2>/dev/null | wc -l`

# if the count is greater than 0, then we've found a user that matches, so we accept this. 
# otherwise, we can't accept this name for 'Assignee' and the trigger fails. 
if [ "$ucount" -gt "0" ]; then
    # user found: write message to log file, accept job
    printf "%s %s %s\n" $(timestamp) "$this" "$usery" >> $log
    exit 0  
else 
    # user not found: write message to log file, then to user, then fail
    printf "%s %s %s\n" $(timestamp) "$this" "$usern" >> $log
    printf "%s %s\n" "$unknown" "$usern"
    exit 1  
fi