forked from Fediversity/fediversity.eu
208 lines
9.7 KiB
JavaScript
Executable file
208 lines
9.7 KiB
JavaScript
Executable file
'use strict';
|
|
|
|
const Assert = require('@hapi/hoek/lib/assert');
|
|
const EscapeRegex = require('@hapi/hoek/lib/escapeRegex');
|
|
|
|
|
|
const internals = {};
|
|
|
|
|
|
internals.generate = function () {
|
|
|
|
const rfc3986 = {};
|
|
|
|
const hexDigit = '\\dA-Fa-f'; // HEXDIG = DIGIT / "A" / "B" / "C" / "D" / "E" / "F"
|
|
const hexDigitOnly = '[' + hexDigit + ']';
|
|
|
|
const unreserved = '\\w-\\.~'; // unreserved = ALPHA / DIGIT / "-" / "." / "_" / "~"
|
|
const subDelims = '!\\$&\'\\(\\)\\*\\+,;='; // sub-delims = "!" / "$" / "&" / "'" / "(" / ")" / "*" / "+" / "," / ";" / "="
|
|
const pctEncoded = '%' + hexDigit; // pct-encoded = "%" HEXDIG HEXDIG
|
|
const pchar = unreserved + pctEncoded + subDelims + ':@'; // pchar = unreserved / pct-encoded / sub-delims / ":" / "@"
|
|
const pcharOnly = '[' + pchar + ']';
|
|
const decOctect = '(?:0{0,2}\\d|0?[1-9]\\d|1\\d\\d|2[0-4]\\d|25[0-5])'; // dec-octet = DIGIT / %x31-39 DIGIT / "1" 2DIGIT / "2" %x30-34 DIGIT / "25" %x30-35 ; 0-9 / 10-99 / 100-199 / 200-249 / 250-255
|
|
|
|
rfc3986.ipv4address = '(?:' + decOctect + '\\.){3}' + decOctect; // IPv4address = dec-octet "." dec-octet "." dec-octet "." dec-octet
|
|
|
|
/*
|
|
h16 = 1*4HEXDIG ; 16 bits of address represented in hexadecimal
|
|
ls32 = ( h16 ":" h16 ) / IPv4address ; least-significant 32 bits of address
|
|
IPv6address = 6( h16 ":" ) ls32
|
|
/ "::" 5( h16 ":" ) ls32
|
|
/ [ h16 ] "::" 4( h16 ":" ) ls32
|
|
/ [ *1( h16 ":" ) h16 ] "::" 3( h16 ":" ) ls32
|
|
/ [ *2( h16 ":" ) h16 ] "::" 2( h16 ":" ) ls32
|
|
/ [ *3( h16 ":" ) h16 ] "::" h16 ":" ls32
|
|
/ [ *4( h16 ":" ) h16 ] "::" ls32
|
|
/ [ *5( h16 ":" ) h16 ] "::" h16
|
|
/ [ *6( h16 ":" ) h16 ] "::"
|
|
*/
|
|
|
|
const h16 = hexDigitOnly + '{1,4}';
|
|
const ls32 = '(?:' + h16 + ':' + h16 + '|' + rfc3986.ipv4address + ')';
|
|
const IPv6SixHex = '(?:' + h16 + ':){6}' + ls32;
|
|
const IPv6FiveHex = '::(?:' + h16 + ':){5}' + ls32;
|
|
const IPv6FourHex = '(?:' + h16 + ')?::(?:' + h16 + ':){4}' + ls32;
|
|
const IPv6ThreeHex = '(?:(?:' + h16 + ':){0,1}' + h16 + ')?::(?:' + h16 + ':){3}' + ls32;
|
|
const IPv6TwoHex = '(?:(?:' + h16 + ':){0,2}' + h16 + ')?::(?:' + h16 + ':){2}' + ls32;
|
|
const IPv6OneHex = '(?:(?:' + h16 + ':){0,3}' + h16 + ')?::' + h16 + ':' + ls32;
|
|
const IPv6NoneHex = '(?:(?:' + h16 + ':){0,4}' + h16 + ')?::' + ls32;
|
|
const IPv6NoneHex2 = '(?:(?:' + h16 + ':){0,5}' + h16 + ')?::' + h16;
|
|
const IPv6NoneHex3 = '(?:(?:' + h16 + ':){0,6}' + h16 + ')?::';
|
|
|
|
rfc3986.ipv4Cidr = '(?:\\d|[1-2]\\d|3[0-2])'; // IPv4 cidr = DIGIT / %x31-32 DIGIT / "3" %x30-32 ; 0-9 / 10-29 / 30-32
|
|
rfc3986.ipv6Cidr = '(?:0{0,2}\\d|0?[1-9]\\d|1[01]\\d|12[0-8])'; // IPv6 cidr = DIGIT / %x31-39 DIGIT / "1" %x0-1 DIGIT / "12" %x0-8; 0-9 / 10-99 / 100-119 / 120-128
|
|
rfc3986.ipv6address = '(?:' + IPv6SixHex + '|' + IPv6FiveHex + '|' + IPv6FourHex + '|' + IPv6ThreeHex + '|' + IPv6TwoHex + '|' + IPv6OneHex + '|' + IPv6NoneHex + '|' + IPv6NoneHex2 + '|' + IPv6NoneHex3 + ')';
|
|
rfc3986.ipvFuture = 'v' + hexDigitOnly + '+\\.[' + unreserved + subDelims + ':]+'; // IPvFuture = "v" 1*HEXDIG "." 1*( unreserved / sub-delims / ":" )
|
|
|
|
rfc3986.scheme = '[a-zA-Z][a-zA-Z\\d+-\\.]*'; // scheme = ALPHA *( ALPHA / DIGIT / "+" / "-" / "." )
|
|
rfc3986.schemeRegex = new RegExp(rfc3986.scheme);
|
|
|
|
const userinfo = '[' + unreserved + pctEncoded + subDelims + ':]*'; // userinfo = *( unreserved / pct-encoded / sub-delims / ":" )
|
|
const IPLiteral = '\\[(?:' + rfc3986.ipv6address + '|' + rfc3986.ipvFuture + ')\\]'; // IP-literal = "[" ( IPv6address / IPvFuture ) "]"
|
|
const regName = '[' + unreserved + pctEncoded + subDelims + ']{1,255}'; // reg-name = *( unreserved / pct-encoded / sub-delims )
|
|
const host = '(?:' + IPLiteral + '|' + rfc3986.ipv4address + '|' + regName + ')'; // host = IP-literal / IPv4address / reg-name
|
|
const port = '\\d*'; // port = *DIGIT
|
|
const authority = '(?:' + userinfo + '@)?' + host + '(?::' + port + ')?'; // authority = [ userinfo "@" ] host [ ":" port ]
|
|
const authorityCapture = '(?:' + userinfo + '@)?(' + host + ')(?::' + port + ')?';
|
|
|
|
/*
|
|
segment = *pchar
|
|
segment-nz = 1*pchar
|
|
path = path-abempty ; begins with "/" '|' is empty
|
|
/ path-absolute ; begins with "/" but not "//"
|
|
/ path-noscheme ; begins with a non-colon segment
|
|
/ path-rootless ; begins with a segment
|
|
/ path-empty ; zero characters
|
|
path-abempty = *( "/" segment )
|
|
path-absolute = "/" [ segment-nz *( "/" segment ) ]
|
|
path-rootless = segment-nz *( "/" segment )
|
|
*/
|
|
|
|
const segment = pcharOnly + '*';
|
|
const segmentNz = pcharOnly + '+';
|
|
const segmentNzNc = '[' + unreserved + pctEncoded + subDelims + '@' + ']+';
|
|
const pathEmpty = '';
|
|
const pathAbEmpty = '(?:\\/' + segment + ')*';
|
|
const pathAbsolute = '\\/(?:' + segmentNz + pathAbEmpty + ')?';
|
|
const pathRootless = segmentNz + pathAbEmpty;
|
|
const pathNoScheme = segmentNzNc + pathAbEmpty;
|
|
const pathAbNoAuthority = '(?:\\/\\/\\/' + segment + pathAbEmpty + ')'; // Used by file:///
|
|
|
|
// hier-part = "//" authority path
|
|
|
|
rfc3986.hierPart = '(?:' + '(?:\\/\\/' + authority + pathAbEmpty + ')' + '|' + pathAbsolute + '|' + pathRootless + '|' + pathAbNoAuthority + ')';
|
|
rfc3986.hierPartCapture = '(?:' + '(?:\\/\\/' + authorityCapture + pathAbEmpty + ')' + '|' + pathAbsolute + '|' + pathRootless + ')';
|
|
|
|
// relative-part = "//" authority path-abempty / path-absolute / path-noscheme / path-empty
|
|
|
|
rfc3986.relativeRef = '(?:' + '(?:\\/\\/' + authority + pathAbEmpty + ')' + '|' + pathAbsolute + '|' + pathNoScheme + '|' + pathEmpty + ')';
|
|
rfc3986.relativeRefCapture = '(?:' + '(?:\\/\\/' + authorityCapture + pathAbEmpty + ')' + '|' + pathAbsolute + '|' + pathNoScheme + '|' + pathEmpty + ')';
|
|
|
|
// query = *( pchar / "/" / "?" )
|
|
// query = *( pchar / "[" / "]" / "/" / "?" )
|
|
|
|
rfc3986.query = '[' + pchar + '\\/\\?]*(?=#|$)'; //Finish matching either at the fragment part '|' end of the line.
|
|
rfc3986.queryWithSquareBrackets = '[' + pchar + '\\[\\]\\/\\?]*(?=#|$)';
|
|
|
|
// fragment = *( pchar / "/" / "?" )
|
|
|
|
rfc3986.fragment = '[' + pchar + '\\/\\?]*';
|
|
|
|
return rfc3986;
|
|
};
|
|
|
|
internals.rfc3986 = internals.generate();
|
|
|
|
|
|
exports.ip = {
|
|
v4Cidr: internals.rfc3986.ipv4Cidr,
|
|
v6Cidr: internals.rfc3986.ipv6Cidr,
|
|
ipv4: internals.rfc3986.ipv4address,
|
|
ipv6: internals.rfc3986.ipv6address,
|
|
ipvfuture: internals.rfc3986.ipvFuture
|
|
};
|
|
|
|
|
|
internals.createRegex = function (options) {
|
|
|
|
const rfc = internals.rfc3986;
|
|
|
|
// Construct expression
|
|
|
|
const query = options.allowQuerySquareBrackets ? rfc.queryWithSquareBrackets : rfc.query;
|
|
const suffix = '(?:\\?' + query + ')?' + '(?:#' + rfc.fragment + ')?';
|
|
|
|
// relative-ref = relative-part [ "?" query ] [ "#" fragment ]
|
|
|
|
const relative = options.domain ? rfc.relativeRefCapture : rfc.relativeRef;
|
|
|
|
if (options.relativeOnly) {
|
|
return internals.wrap(relative + suffix);
|
|
}
|
|
|
|
// Custom schemes
|
|
|
|
let customScheme = '';
|
|
if (options.scheme) {
|
|
Assert(options.scheme instanceof RegExp || typeof options.scheme === 'string' || Array.isArray(options.scheme), 'scheme must be a RegExp, String, or Array');
|
|
|
|
const schemes = [].concat(options.scheme);
|
|
Assert(schemes.length >= 1, 'scheme must have at least 1 scheme specified');
|
|
|
|
// Flatten the array into a string to be used to match the schemes
|
|
|
|
const selections = [];
|
|
for (let i = 0; i < schemes.length; ++i) {
|
|
const scheme = schemes[i];
|
|
Assert(scheme instanceof RegExp || typeof scheme === 'string', 'scheme at position ' + i + ' must be a RegExp or String');
|
|
|
|
if (scheme instanceof RegExp) {
|
|
selections.push(scheme.source.toString());
|
|
}
|
|
else {
|
|
Assert(rfc.schemeRegex.test(scheme), 'scheme at position ' + i + ' must be a valid scheme');
|
|
selections.push(EscapeRegex(scheme));
|
|
}
|
|
}
|
|
|
|
customScheme = selections.join('|');
|
|
}
|
|
|
|
// URI = scheme ":" hier-part [ "?" query ] [ "#" fragment ]
|
|
|
|
const scheme = customScheme ? '(?:' + customScheme + ')' : rfc.scheme;
|
|
const absolute = '(?:' + scheme + ':' + (options.domain ? rfc.hierPartCapture : rfc.hierPart) + ')';
|
|
const prefix = options.allowRelative ? '(?:' + absolute + '|' + relative + ')' : absolute;
|
|
return internals.wrap(prefix + suffix, customScheme);
|
|
};
|
|
|
|
|
|
internals.wrap = function (raw, scheme) {
|
|
|
|
raw = `(?=.)(?!https?\:/(?:$|[^/]))(?!https?\:///)(?!https?\:[^/])${raw}`; // Require at least one character and explicitly forbid 'http:/' or HTTP with empty domain
|
|
|
|
return {
|
|
raw,
|
|
regex: new RegExp(`^${raw}$`),
|
|
scheme
|
|
};
|
|
};
|
|
|
|
|
|
internals.uriRegex = internals.createRegex({});
|
|
|
|
|
|
exports.regex = function (options = {}) {
|
|
|
|
if (options.scheme ||
|
|
options.allowRelative ||
|
|
options.relativeOnly ||
|
|
options.allowQuerySquareBrackets ||
|
|
options.domain) {
|
|
|
|
return internals.createRegex(options);
|
|
}
|
|
|
|
return internals.uriRegex;
|
|
};
|