[BK-2020-03.git] / unitproc / bkt-checkURL

#!/bin/bash

checkURL() {
    # Desc: Checks if string is a valid URL.
    # Warning: Does not correctly handle multi-byte characters.
    # Version: 0.0.2
    # Input: arg1: string
    # Output: return code 0: string is a valid URL
    #         return code 1: string is NOT a valid URL
    # Depends: Bash 5.0.3
    # Ref/Attrib: https://stackoverflow.com/a/3184819
    regex='(https?|ftp|file|ssh|git)://[-A-Za-z0-9\+&@#/%?=~_|!:,.;]*[-A-Za-z0-9\+&@#/%=~_|]'
    arg1="$1";
    if [[ $arg1 =~ $regex ]]; then
	return 0;
    else
	return 1;
    fi;
}

#==BEGIN sample code
testString="https://google.com/security.main.html"
if checkURL "$testString"; then echo "Is a valid URL:$testString"; else echo "Is NOT a valid URL:$testString"; fi;
testString="ssh://username@host.xz/absolute/path/to/repo.git/"
if checkURL "$testString"; then echo "Is a valid URL:$testString"; else echo "Is NOT a valid URL:$testString"; fi;
#==END sample code
Commit	Line	Data
55a0bbf5 SBS	1	#!/bin/bash
	2
	3	checkURL() {
	4	# Desc: Checks if string is a valid URL.
	5	# Warning: Does not correctly handle multi-byte characters.
508c8c87	6	# Version: 0.0.2
55a0bbf5 SBS	7	# Input: arg1: string
	8	# Output: return code 0: string is a valid URL
	9	# return code 1: string is NOT a valid URL
	10	# Depends: Bash 5.0.3
	11	# Ref/Attrib: https://stackoverflow.com/a/3184819
	12	regex='(https?\|ftp\|file\|ssh\|git)://[-A-Za-z0-9\+&@#/%?=~_\|!:,.;]*[-A-Za-z0-9\+&@#/%=~_\|]'
508c8c87 SBS	13	arg1="$1";
508c8c87 SBS	14	if [[ $arg1 =~ $regex ]]; then
55a0bbf5 SBS	15	return 0;
55a0bbf5 SBS	16	else
508c8c87	17	return 1;
55a0bbf5 SBS	18	fi;
	19	}
	20
	21	#==BEGIN sample code
	22	testString="https://google.com/security.main.html"
	23	if checkURL "$testString"; then echo "Is a valid URL:$testString"; else echo "Is NOT a valid URL:$testString"; fi;
	24	testString="ssh://username@host.xz/absolute/path/to/repo.git/"
	25	if checkURL "$testString"; then echo "Is a valid URL:$testString"; else echo "Is NOT a valid URL:$testString"; fi;
	26	#==END sample code