mirror of https://github.com/termux/termux-app
105 lines
4.5 KiB
Java
105 lines
4.5 KiB
Java
package com.termux.shared.termux.data;
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import java.util.LinkedHashSet;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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public class TermuxUrlUtils {
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public static Pattern URL_MATCH_REGEX;
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public static Pattern getUrlMatchRegex() {
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if (URL_MATCH_REGEX != null) return URL_MATCH_REGEX;
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StringBuilder regex_sb = new StringBuilder();
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regex_sb.append("("); // Begin first matching group.
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regex_sb.append("(?:"); // Begin scheme group.
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regex_sb.append("dav|"); // The DAV proto.
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regex_sb.append("dict|"); // The DICT proto.
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regex_sb.append("dns|"); // The DNS proto.
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regex_sb.append("file|"); // File path.
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regex_sb.append("finger|"); // The Finger proto.
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regex_sb.append("ftp(?:s?)|"); // The FTP proto.
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regex_sb.append("git|"); // The Git proto.
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regex_sb.append("gemini|"); // The Gemini proto.
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regex_sb.append("gopher|"); // The Gopher proto.
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regex_sb.append("http(?:s?)|"); // The HTTP proto.
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regex_sb.append("imap(?:s?)|"); // The IMAP proto.
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regex_sb.append("irc(?:[6s]?)|"); // The IRC proto.
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regex_sb.append("ip[fn]s|"); // The IPFS proto.
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regex_sb.append("ldap(?:s?)|"); // The LDAP proto.
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regex_sb.append("pop3(?:s?)|"); // The POP3 proto.
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regex_sb.append("redis(?:s?)|"); // The Redis proto.
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regex_sb.append("rsync|"); // The Rsync proto.
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regex_sb.append("rtsp(?:[su]?)|"); // The RTSP proto.
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regex_sb.append("sftp|"); // The SFTP proto.
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regex_sb.append("smb(?:s?)|"); // The SAMBA proto.
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regex_sb.append("smtp(?:s?)|"); // The SMTP proto.
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regex_sb.append("svn(?:(?:\\+ssh)?)|"); // The Subversion proto.
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regex_sb.append("tcp|"); // The TCP proto.
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regex_sb.append("telnet|"); // The Telnet proto.
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regex_sb.append("tftp|"); // The TFTP proto.
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regex_sb.append("udp|"); // The UDP proto.
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regex_sb.append("vnc|"); // The VNC proto.
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regex_sb.append("ws(?:s?)"); // The Websocket proto.
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regex_sb.append(")://"); // End scheme group.
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regex_sb.append(")"); // End first matching group.
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// Begin second matching group.
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regex_sb.append("(");
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// User name and/or password in format 'user:pass@'.
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regex_sb.append("(?:\\S+(?::\\S*)?@)?");
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// Begin host group.
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regex_sb.append("(?:");
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// IP address (from http://www.regular-expressions.info/examples.html).
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regex_sb.append("(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)|");
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// Host name or domain.
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regex_sb.append("(?:(?:[a-z\\u00a1-\\uffff0-9]-*)*[a-z\\u00a1-\\uffff0-9]+)(?:(?:\\.(?:[a-z\\u00a1-\\uffff0-9]-*)*[a-z\\u00a1-\\uffff0-9]+)*(?:\\.(?:[a-z\\u00a1-\\uffff0-9]-*){1,}[a-z\\u00a1-\\uffff0-9]{1,}))?|");
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// Just path. Used in case of 'file://' scheme.
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regex_sb.append("/(?:(?:[a-z\\u00a1-\\uffff0-9]-*)*[a-z\\u00a1-\\uffff0-9]+)");
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// End host group.
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regex_sb.append(")");
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// Port number.
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regex_sb.append("(?::\\d{1,5})?");
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// Resource path with optional query string.
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regex_sb.append("(?:/[a-zA-Z0-9:@%\\-._~!$&()*+,;=?/]*)?");
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// Fragment.
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regex_sb.append("(?:#[a-zA-Z0-9:@%\\-._~!$&()*+,;=?/]*)?");
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// End second matching group.
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regex_sb.append(")");
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URL_MATCH_REGEX = Pattern.compile(
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regex_sb.toString(),
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Pattern.CASE_INSENSITIVE | Pattern.MULTILINE | Pattern.DOTALL);
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return URL_MATCH_REGEX;
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}
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public static LinkedHashSet<CharSequence> extractUrls(String text) {
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LinkedHashSet<CharSequence> urlSet = new LinkedHashSet<>();
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Matcher matcher = getUrlMatchRegex().matcher(text);
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while (matcher.find()) {
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int matchStart = matcher.start(1);
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int matchEnd = matcher.end();
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String url = text.substring(matchStart, matchEnd);
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urlSet.add(url);
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}
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return urlSet;
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}
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}
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