Created
October 25, 2020 22:55
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chmod-converter (part of my blog post https://superkogito.github.io/blog/chmodmodes.html)
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var chmod_dict = { | |
"r": 4, | |
"w": 2, | |
"x": 1, | |
"rwx": "7", | |
"rw-": "6", | |
"r-x": "5", | |
"r--": "4", | |
"-wx": "3", | |
"-w-": "2", | |
"--x": "1", | |
"---": "0", | |
"7": "rwx", | |
"6": "rw-", | |
"5": "r-x", | |
"4": "r--", | |
"3": "-wx", | |
"2": "-w-", | |
"1": "--x", | |
"0": "---" | |
} | |
var chmod_sub_symbolics = ["rwx", "rw-", "r-x", "r--", "-wx", "-w-", "--x", "---"] | |
function symbolic2table(symbolic) { | |
document.chmod.ownerr.checked = "r" == symbolic[1]; | |
document.chmod.ownerw.checked = "w" == symbolic[2]; | |
document.chmod.ownerx.checked = "x" == symbolic[3]; | |
document.chmod.groupr.checked = "r" == symbolic[4]; | |
document.chmod.groupw.checked = "w" == symbolic[5]; | |
document.chmod.groupx.checked = "x" == symbolic[6]; | |
document.chmod.otherr.checked = "r" == symbolic[7]; | |
document.chmod.otherw.checked = "w" == symbolic[8]; | |
document.chmod.otherx.checked = "x" == symbolic[9]; | |
} | |
function chmod2table() { | |
var symbolic = "-"; | |
if (document.chmod.ownerr.checked) { | |
symbolic += "r"; | |
} else { | |
symbolic += "-"; | |
} | |
if (document.chmod.ownerw.checked) { | |
symbolic += "w"; | |
} else { | |
symbolic += "-"; | |
} | |
if (document.chmod.ownerx.checked) { | |
symbolic += "x"; | |
} else { | |
symbolic += "-"; | |
} | |
if (document.chmod.groupr.checked) { | |
symbolic += "r"; | |
} else { | |
symbolic += "-"; | |
} | |
if (document.chmod.groupw.checked) { | |
symbolic += "w"; | |
} else { | |
symbolic += "-"; | |
} | |
if (document.chmod.groupx.checked) { | |
symbolic += "x"; | |
} else { | |
symbolic += "-"; | |
} | |
if (document.chmod.otherr.checked) { | |
symbolic += "r"; | |
} else { | |
symbolic += "-"; | |
} | |
if (document.chmod.otherw.checked) { | |
symbolic += "w"; | |
} else { | |
symbolic += "-"; | |
} | |
if (document.chmod.otherx.checked) { | |
symbolic += "x"; | |
} else { | |
symbolic += "-"; | |
} | |
document.chmod.chmod_symbolic.value = symbolic; | |
var owner = symbolic.substring(1, 4); | |
var group = symbolic.substring(4, 7); | |
var other = symbolic.substring(7, symbolic.length); | |
document.chmod.chmod_numeric.value = chmod_dict[owner] + chmod_dict[group] + chmod_dict[other]; | |
} | |
function numeric2symbolic() { | |
// get value | |
var numeric = document.chmod.chmod_numeric.value; | |
var len = numeric.length; | |
// padding | |
while ((len < 3) && (numeric != "")) { | |
numeric = "0" + numeric; | |
len = numeric.length; | |
} | |
console.log(numeric) | |
// converting | |
if (!numeric.includes("8") && !numeric.includes("9") && (len == 3)) { | |
var symbolic = ""; | |
for (var i = 0; i < len; i++) { | |
symbolic += chmod_dict[numeric[i]]; | |
} | |
console.log(symbolic); | |
document.chmod.chmod_symbolic.value = "-" + symbolic; | |
symbolic2table("-" + symbolic); | |
} else { | |
document.chmod.chmod_symbolic.value = "undefined"; | |
symbolic2table("----------"); | |
} | |
} | |
function symbolic2numeric() { | |
// init values | |
var symbolic = document.chmod.chmod_symbolic.value; | |
var len = symbolic.length; | |
var owner = symbolic.substring(1, 4); | |
var group = symbolic.substring(4, 7); | |
var other = symbolic.substring(7, len); | |
console.log(symbolic); | |
console.log(len); | |
console.log(owner + "|" + group + "|" + other); | |
// padding | |
if ((len == 10) && chmod_sub_symbolics.includes(owner) && chmod_sub_symbolics.includes(group) && chmod_sub_symbolics.includes(other)) { | |
console.log(chmod_dict[owner] + "|" + chmod_dict[group] + "|" + chmod_dict[other]); | |
document.chmod.chmod_numeric.value = chmod_dict[owner] + chmod_dict[group] + chmod_dict[other]; | |
symbolic2table(symbolic); | |
} else { | |
document.chmod.chmod_numeric.value = "xxx"; | |
symbolic2table("----------"); | |
} | |
} | |
window.onload = numeric2symbolic; |
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Excellent article - thank you!