unitproc/bkt-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 $*"; } #o
   7 validateInput() {
   8     # Desc: Validates Input
   9     # Usage: validateInput [str input] [str input type]
  10     # Version: 0.3.1
  11     # Input: arg1: string to validate
  12     #        arg2: string specifying input type (ex:"ssh_pubkey")
  13     # Output: return code 0: if input string matched specified string type
  14     # Depends: bash 5, yell()
  15
  16     local fn argInput argType
  17
  18     # Save function name
  19     fn="${FUNCNAME[0]}";
  20
  21     # Process arguments
  22     argInput="$1";
  23     argType="$2";
  24     if [[ $# -gt 2 ]]; then yell "ERROR:$0:$fn:Too many arguments."; exit 1; fi;
  25
  26     # Check for blank
  27     if [[ -z "$argInput" ]]; then return 1; fi
  28
  29     # Define input types
  30     ## ssh_pubkey
  31     ### Check for alnum/dash base64 (ex: "ssh-rsa AAAAB3NzaC1yc2EAAA")
  32     if [[ "$argType" = "ssh_pubkey" ]]; then
  33         if [[ "$argInput" =~ ^[[:alnum:]-]*[\ ]*[[:alnum:]+/=]*$ ]]; then
  34             return 0; fi; fi;
  35
  36     ## age_pubkey
  37     ### Check for age1[:bech32:]
  38     if [[ "$argType" = "age_pubkey" ]]; then
  39         if [[ "$argInput" =~ ^age1[qpzry9x8gf2tvdw0s3jn54khce6mua7l]*$ ]]; then
  40             return 0; fi; fi
  41
  42     ## integer
  43     if [[ "$argType" = "integer" ]]; then
  44         if [[ "$argInput" =~ ^[[:digit:]]*$ ]]; then
  45             return 0; fi; fi;
  46
  47     ## time element (year, month, week, day, hour, minute, second)
  48     if [[ "$argType" = "time_element" ]]; then
  49         if [[ "$argInput" = "year" ]] || \
  50                [[ "$argInput" = "month" ]] || \
  51                [[ "$argInput" = "week" ]] || \
  52                [[ "$argInput" = "day" ]] || \
  53                [[ "$argInput" = "hour" ]] || \
  54                [[ "$argInput" = "minute" ]] || \
  55                [[ "$argInput" = "second" ]]; then
  56             return 0; fi; fi;
  57
  58     # Return error if no condition matched.
  59     return 1;
  60 } # Validates strings
  61
  62 #==BEGIN sample code==
  63 testKey="ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCq8G0XWi8A+MXNu7MEaxDsZJUwtgPC4shGAAarXC4PQTRxLfUHtyWkNbzGh31U/bKI3Snp1O78yOVEZSjdmWkDvkwtWKJQcoZBStgqw9oIPE0oG8uh49XoX77nVabi0JCf8zO63Ai4/9EdwyqE9xsJ+soOYt2V5+UCj0zsv1xpt2YhfYyXrzBv9x6k9lCxy0NW3Ik1mSW+OzSOT3tgDf36ujV/CI2i8ERM9civWy8FtFOReZMV2kkbj7fXI4E1wKM1RFIn7er1MseCSvbvh3o2uCO46/euqHAstYs5cL+4yB2qM/xKfHT5aocDjq7GBLKtree9xdNF0EE9CNr/+J5R";
  64 keyType="ssh_pubkey";
  65 if validateInput "$testKey" "$keyType"; then echo "Looks like a valid $keyType:\"$testKey\""; else echo "Doesn't look like a valid $keyType:\"$testKey\""; fi
  66 echo "";
  67
  68 testKey="blah-blah onetwothreeREEE";
  69 keyType="ssh_pubkey";
  70 if validateInput "$testKey" "$keyType"; then echo "Looks like a valid $keyType:\"$testKey\""; else echo "Doesn't look like a valid $keyType:\"$testKey\""; fi
  71 echo "";
  72
  73 testKey="";
  74 keyType="ssh_pubkey";
  75 if validateInput "$testKey" "$keyType"; then echo "Looks like a valid $keyType:\"$testKey\""; else echo "Doesn't look like a valid $keyType:\"$testKey\""; fi
  76 echo "";
  77
  78 testKey="age1c3s6huz6en6jh40cem0erc0m2un2ry85my0t0ujj4a5cu8gzkysq9l39e4";
  79 keyType="age_pubkey";
  80 if validateInput "$testKey" "$keyType"; then echo "Looks like a valid $keyType:\"$testKey\""; else echo "Doesn't look like a valid $keyType:\"$testKey\""; fi
  81 echo "";
  82
  83 testKey="123"
  84 keyType="integer";
  85 if validateInput "$testKey" "$keyType"; then echo "Looks like a valid $keyType:\"$testKey\""; else echo "Doesn't look like a valid $keyType:\"$testKey\""; fi
  86 echo "";
  87
  88 testKey="123abc"
  89 keyType="integer";
  90 if validateInput "$testKey" "$keyType"; then echo "Looks like a valid $keyType:\"$testKey\""; else echo "Doesn't look like a valid $keyType:\"$testKey\""; fi
  91 echo "";
  92
  93 testKey="year"
  94 keyType="time_element";
  95 if validateInput "$testKey" "$keyType"; then echo "Looks like a valid $keyType:\"$testKey\""; else echo "Doesn't look like a valid $keyType:\"$testKey\""; fi
  96 echo "";
  97
  98 #==END sample code==
  99
 100 # Author: Steven Baltakatei Sandoval (bktei.com)
 101 # License: GPLv3+