mirror of
https://github.com/fankes/termux-app.git
synced 2025-09-07 11:09:49 +08:00
Create termux-shared library package for all termux constants and shared utils
The termux plugins should use this library instead of hardcoding "com.termux" values in their source code. The library can be included as a dependency by plugins and third party apps by including the following line in the build.gradle where x.xxx is the version number, once its published. `implementation 'com.termux:termux-shared:x.xxx'` The `TermuxConstants` class has been updated to `v0.17.0`, `TermuxPreferenceConstants` to `v0.9.0` and `TermuxPropertyConstants` to `v0.6.0`. Check their Changelog sections for info on changes. Some typos and redundant code has also been fixed.
This commit is contained in:
agnostic-apollo
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package com.termux.shared.data;
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import android.os.Bundle;
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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 DataUtils {
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public static final int TRANSACTION_SIZE_LIMIT_IN_BYTES = 100 * 1024; // 100KB
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public static String getTruncatedCommandOutput(String text, int maxLength, boolean fromEnd, boolean onNewline, boolean addPrefix) {
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if (text == null) return null;
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String prefix = "(truncated) ";
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if (addPrefix)
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maxLength = maxLength - prefix.length();
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if (maxLength < 0 || text.length() < maxLength) return text;
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if (fromEnd) {
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text = text.substring(0, Math.min(text.length(), maxLength));
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} else {
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int cutOffIndex = text.length() - maxLength;
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if (onNewline) {
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int nextNewlineIndex = text.indexOf('\n', cutOffIndex);
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if (nextNewlineIndex != -1 && nextNewlineIndex != text.length() - 1) {
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cutOffIndex = nextNewlineIndex + 1;
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}
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}
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text = text.substring(cutOffIndex);
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}
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if (addPrefix)
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text = prefix + text;
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return text;
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}
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/**
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* Get the {@code float} from a {@link String}.
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*
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* @param value The {@link String value.
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* @param def The default value if failed to read a valid value.
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* @return Returns the {@code float} value after parsing the {@link String} value, otherwise
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* returns default if failed to read a valid value, like in case of an exception.
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*/
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public static float getFloatFromString(String value, float def) {
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if (value == null) return def;
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try {
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return Float.parseFloat(value);
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}
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catch (Exception e) {
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return def;
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}
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}
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/**
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* Get the {@code int} from a {@link String}.
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*
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* @param value The {@link String value.
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* @param def The default value if failed to read a valid value.
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* @return Returns the {@code int} value after parsing the {@link String} value, otherwise
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* returns default if failed to read a valid value, like in case of an exception.
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*/
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public static int getIntFromString(String value, int def) {
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if (value == null) return def;
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try {
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return Integer.parseInt(value);
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}
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catch (Exception e) {
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return def;
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}
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}
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/**
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* Get an {@code int} from {@link Bundle} that is stored as a {@link String}.
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*
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* @param bundle The {@link Bundle} to get the value from.
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* @param key The key for the value.
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* @param def The default value if failed to read a valid value.
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* @return Returns the {@code int} value after parsing the {@link String} value stored in
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* {@link Bundle}, otherwise returns default if failed to read a valid value,
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* like in case of an exception.
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*/
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public static int getIntStoredAsStringFromBundle(Bundle bundle, String key, int def) {
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if (bundle == null) return def;
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return getIntFromString(bundle.getString(key, Integer.toString(def)), def);
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}
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/**
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* If value is not in the range [min, max], set it to either min or max.
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*/
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public static int clamp(int value, int min, int max) {
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return Math.min(Math.max(value, min), max);
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}
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/**
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* If value is not in the range [min, max], set it to default.
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*/
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public static float rangedOrDefault(float value, float def, float min, float max) {
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if (value < min || value > max)
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return def;
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else
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return value;
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}
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/**
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* Get the object itself if it is not {@code null}, otherwise default.
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*
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* @param object The {@link Object} to check.
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* @param def The default {@link Object}.
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* @return Returns {@code object} if it is not {@code null}, otherwise returns {@code def}.
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*/
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public static <T> T getDefaultIfNull(@androidx.annotation.Nullable T object, @androidx.annotation.Nullable T def) {
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return (object == null) ? def : object;
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}
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public static LinkedHashSet<CharSequence> extractUrls(String text) {
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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("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-\\uffff]{2,})))?|");
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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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final Pattern urlPattern = Pattern.compile(
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regex_sb.toString(),
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Pattern.CASE_INSENSITIVE | Pattern.MULTILINE | Pattern.DOTALL);
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LinkedHashSet<CharSequence> urlSet = new LinkedHashSet<>();
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Matcher matcher = urlPattern.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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