unitproc/bktemp-validateInput

   1 #!/bin/bash
   2 # Desc: Validates Input
   3
   4 yell() { echo "$0: $*" >&2; }      #o Yell, Die, Try Three-Fingered Claw technique
   5 die() { yell "$*"; exit 111; }     #o Ref/Attrib: https://stackoverflow.com/a/25515370
   6 try() { "$@" || die "cannot $*"; } #o
   7 validateInput() {
   8     # Desc: Validates Input
   9     # Usage: validateInput [str input] [str input type]
  10     # Version: 0.2.1
  11     # Input: arg1: string to validate
  12     #        arg2: string specifying input type (ex:"ssh_pubkey")
  13     # Output: return code 0: if input string matched specified string type
  14     # Depends: bash 5, yell
  15
  16     # Save function name
  17     local FN="${FUNCNAME[0]}";
  18
  19     # Process arguments
  20     argInput="$1";
  21     argType="$2";
  22     if [[ $# -gt 2 ]]; then yell "ERROR:$0:$FN:Too many arguments."; exit 1; fi;
  23
  24     # Check for blank
  25     if [[ -z "$argInput" ]]; then return 1; fi
  26
  27     # Define input types
  28     ## ssh_pubkey
  29     ### Check for alnum/dash base64 (ex: "ssh-rsa AAAAB3NzaC1yc2EAAA")
  30     if [[ "$argType" = "ssh_pubkey" ]]; then
  31         if [[ "$argInput" =~ ^[[:alnum:]-]*[\ ]*[[:alnum:]+/=]*$ ]]; then
  32         return 0; fi; fi;
  33
  34     ## age_pubkey
  35     ### Check for age1[:bech32:]
  36     if [[ "$argType" = "age_pubkey" ]]; then
  37         if [[ "$argInput" =~ ^age1[qpzry9x8gf2tvdw0s3jn54khce6mua7l]*$ ]]; then
  38             return 0; fi; fi
  39
  40     # Return error if no condition matched.
  41     return 1;
  42 } # Validates strings
  43
  44 #==BEGIN sample code==
  45 testKey1="ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCq8G0XWi8A+MXNu7MEaxDsZJUwtgPC4shGAAarXC4PQTRxLfUHtyWkNbzGh31U/bKI3Snp1O78yOVEZSjdmWkDvkwtWKJQcoZBStgqw9oIPE0oG8uh49XoX77nVabi0JCf8zO63Ai4/9EdwyqE9xsJ+soOYt2V5+UCj0zsv1xpt2YhfYyXrzBv9x6k9lCxy0NW3Ik1mSW+OzSOT3tgDf36ujV/CI2i8ERM9civWy8FtFOReZMV2kkbj7fXI4E1wKM1RFIn7er1MseCSvbvh3o2uCO46/euqHAstYs5cL+4yB2qM/xKfHT5aocDjq7GBLKtree9xdNF0EE9CNr/+J5R";
  46 testKey2="blah-blah onetwothreeREEE";
  47 testKey3="";
  48 testKey4="age1c3s6huz6en6jh40cem0erc0m2un2ry85my0t0ujj4a5cu8gzkysq9l39e4";
  49 keyTypeA="ssh_pubkey";
  50 keyTypeB="age_pubkey";
  51 if validateInput "$testKey1" "$keyTypeA"; then echo "$testKey1 looks like a valid $keyTypeA."; else echo "$testKey1 doesn't look like a valid $keyTypeA."; fi
  52 if validateInput "$testKey2" "$keyTypeA"; then echo "$testKey2 looks like a valid $keyTypeA."; else echo "$testKey2 doesn't look like a valid $keyTypeA."; fi
  53 if validateInput "$testKey3" "$keyTypeA"; then echo "$testKey3 looks like a valid $keyTypeA."; else echo "$testKey3 doesn't look like a valid $keyTypeA."; fi
  54 if validateInput "$testKey4" "$keyTypeB"; then echo "$testKey4 looks like a valid $keyTypeB."; else echo "$testKey4 doesn't look like a valid $keyTypeB."; fi
  55 #==END sample code==
  56
  57 # Author: Steven Baltakatei Sandoval (bktei.com)
  58 # License: GPLv3+