// yacyURL.java // (C) 2006 by Michael Peter Christen; mc@yacy.net, Frankfurt a. M., Germany // first published 13.07.2006 on http://yacy.net // // $LastChangedDate: 2006-04-02 22:40:07 +0200 (So, 02 Apr 2006) $ // $LastChangedRevision: 1986 $ // $LastChangedBy: orbiter $ // // LICENSE // // This program is free software; you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation; either version 2 of the License, or // (at your option) any later version. // // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with this program; if not, write to the Free Software // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA package de.anomic.yacy; // this class exist to provide a system-wide normal form representation of urls, // and to prevent that java.net.URL usage causes DNS queries which are used in java.net. import java.io.File; import java.io.Serializable; import java.net.MalformedURLException; import java.util.Iterator; import java.util.TreeSet; import java.util.regex.Matcher; import java.util.regex.Pattern; import de.anomic.kelondro.order.Base64Order; import de.anomic.kelondro.order.Digest; import de.anomic.server.serverDomains; import de.anomic.tools.Punycode; import de.anomic.tools.Punycode.PunycodeException; public class yacyURL implements Serializable { /** * generated with svn4751 on 2008-05-01 */ private static final long serialVersionUID = -1173233022912141884L; public static final int TLD_any_zone_filter = 255; // from TLD zones can be filtered during search; this is the catch-all filter // class variables private String protocol, host, userInfo, path, quest, ref, hash; private int port; public yacyURL(final String url, final String hash) throws MalformedURLException { if (url == null) throw new MalformedURLException("url string is null"); parseURLString(url); this.hash = hash; } private void parseURLString(String url) throws MalformedURLException { // identify protocol assert (url != null); url = url.trim(); int p = url.indexOf(':'); if (p < 0) { if (url.startsWith("www.")) { url = "http://" + url; p = 4; } else { throw new MalformedURLException("protocol is not given in '" + url + "'"); } } this.protocol = url.substring(0, p).toLowerCase().trim(); if (url.length() < p + 4) throw new MalformedURLException("URL not parseable: '" + url + "'"); if (url.substring(p + 1, p + 3).equals("//")) { // identify host, userInfo and file for http and ftp protocol final int q = url.indexOf('/', p + 3); int r; if (q < 0) { if ((r = url.indexOf('@', p + 3)) < 0) { host = url.substring(p + 3); userInfo = null; } else { host = url.substring(r + 1); userInfo = url.substring(p + 3, r); } path = "/"; } else { host = url.substring(p + 3, q); if ((r = host.indexOf('@')) < 0) { userInfo = null; } else { userInfo = host.substring(0, r); host = host.substring(r + 1); } path = url.substring(q); } path = resolveBackpath(path); identPort(url, (protocol.equals("http") ? 80 : ((protocol.equals("https")) ? 443 : ((protocol.equals("ftp")) ? 21 : -1)))); identRef(); identQuest(); escape(); } else { // this is not a http or ftp url if (protocol.equals("mailto")) { // parse email url final int q = url.indexOf('@', p + 3); if (q < 0) { throw new MalformedURLException("wrong email address: " + url); } userInfo = url.substring(p + 1, q); host = url.substring(q + 1); path = null; port = -1; quest = null; ref = null; } else { throw new MalformedURLException("unknown protocol: " + url); } } // handle international domains if (!Punycode.isBasic(host)) try { final String[] domainParts = host.split("\\."); StringBuilder buffer = new StringBuilder(); // encode each domainpart seperately for(int i=0; i= 0) { String head = path.substring(0, p); int q = head.lastIndexOf('/'); if (q < 0) throw new MalformedURLException("backpath cannot be resolved in path = " + path); path = head.substring(0, q) + path.substring(p + 3); }*/ /* by [MT] */ if (path.length() == 0 || path.charAt(0) != '/') { path = "/" + path; } final Matcher matcher = backPathPattern.matcher(path); while (matcher.find()) { path = matcher.replaceAll(""); matcher.reset(path); } return path.equals("")?"/":path; } /** * Escapes the following parts of the url, this object already contains: * */ private void escape() { if (path != null && path.indexOf('%') == -1) escapePath(); if (quest != null && quest.indexOf('%') == -1) escapeQuest(); if (ref != null && ref.indexOf('%') == -1) escapeRef(); } private void escapePath() { final String[] pathp = path.split("/", -1); String ptmp = ""; for (int i = 0; i < pathp.length; i++) { ptmp += "/" + escape(pathp[i]); } path = ptmp.substring((ptmp.length() > 0) ? 1 : 0); } private void escapeRef() { ref = escape(ref); } private void escapeQuest() { final String[] questp = quest.split("&", -1); String qtmp = ""; for (int i = 0; i < questp.length; i++) { if (questp[i].indexOf('=') != -1) { qtmp += "&" + escape(questp[i].substring(0, questp[i].indexOf('='))); qtmp += "=" + escape(questp[i].substring(questp[i].indexOf('=') + 1)); } else { qtmp += "&" + escape(questp[i]); } } quest = qtmp.substring((qtmp.length() > 0) ? 1 : 0); } private final static String[] hex = { "%00", "%01", "%02", "%03", "%04", "%05", "%06", "%07", "%08", "%09", "%0A", "%0B", "%0C", "%0D", "%0E", "%0F", "%10", "%11", "%12", "%13", "%14", "%15", "%16", "%17", "%18", "%19", "%1A", "%1B", "%1C", "%1D", "%1E", "%1F", "%20", "%21", "%22", "%23", "%24", "%25", "%26", "%27", "%28", "%29", "%2A", "%2B", "%2C", "%2D", "%2E", "%2F", "%30", "%31", "%32", "%33", "%34", "%35", "%36", "%37", "%38", "%39", "%3A", "%3B", "%3C", "%3D", "%3E", "%3F", "%40", "%41", "%42", "%43", "%44", "%45", "%46", "%47", "%48", "%49", "%4A", "%4B", "%4C", "%4D", "%4E", "%4F", "%50", "%51", "%52", "%53", "%54", "%55", "%56", "%57", "%58", "%59", "%5A", "%5B", "%5C", "%5D", "%5E", "%5F", "%60", "%61", "%62", "%63", "%64", "%65", "%66", "%67", "%68", "%69", "%6A", "%6B", "%6C", "%6D", "%6E", "%6F", "%70", "%71", "%72", "%73", "%74", "%75", "%76", "%77", "%78", "%79", "%7A", "%7B", "%7C", "%7D", "%7E", "%7F", "%80", "%81", "%82", "%83", "%84", "%85", "%86", "%87", "%88", "%89", "%8A", "%8B", "%8C", "%8D", "%8E", "%8F", "%90", "%91", "%92", "%93", "%94", "%95", "%96", "%97", "%98", "%99", "%9A", "%9B", "%9C", "%9D", "%9E", "%9F", "%A0", "%A1", "%A2", "%A3", "%A4", "%A5", "%A6", "%A7", "%A8", "%A9", "%AA", "%AB", "%AC", "%AD", "%AE", "%AF", "%B0", "%B1", "%B2", "%B3", "%B4", "%B5", "%B6", "%B7", "%B8", "%B9", "%BA", "%BB", "%BC", "%BD", "%BE", "%BF", "%C0", "%C1", "%C2", "%C3", "%C4", "%C5", "%C6", "%C7", "%C8", "%C9", "%CA", "%CB", "%CC", "%CD", "%CE", "%CF", "%D0", "%D1", "%D2", "%D3", "%D4", "%D5", "%D6", "%D7", "%D8", "%D9", "%DA", "%DB", "%DC", "%DD", "%DE", "%DF", "%E0", "%E1", "%E2", "%E3", "%E4", "%E5", "%E6", "%E7", "%E8", "%E9", "%EA", "%EB", "%EC", "%ED", "%EE", "%EF", "%F0", "%F1", "%F2", "%F3", "%F4", "%F5", "%F6", "%F7", "%F8", "%F9", "%FA", "%FB", "%FC", "%FD", "%FE", "%FF" }; /** * Encode a string to the "x-www-form-urlencoded" form, enhanced * with the UTF-8-in-URL proposal. This is what happens: * * * * @param s The string to be encoded * @return The encoded string */ // from: http://www.w3.org/International/URLUTF8Encoder.java public static String escape(final String s) { final StringBuilder sbuf = new StringBuilder(); final int len = s.length(); for (int i = 0; i < len; i++) { final int ch = s.charAt(i); if ('A' <= ch && ch <= 'Z') { // 'A'..'Z' sbuf.append((char)ch); } else if ('a' <= ch && ch <= 'z') { // 'a'..'z' sbuf.append((char)ch); } else if ('0' <= ch && ch <= '9') { // '0'..'9' sbuf.append((char)ch); } else if (ch == ' ') { // space sbuf.append("%20"); } else if (ch == '&' || ch == ':' // unreserved || ch == '-' || ch == '_' || ch == '.' || ch == '!' || ch == '~' || ch == '*' || ch == '\'' || ch == '(' || ch == ')' || ch == ';') { sbuf.append((char)ch); } else if (ch <= 0x007f) { // other ASCII sbuf.append(hex[ch]); } else if (ch <= 0x07FF) { // non-ASCII <= 0x7FF sbuf.append(hex[0xc0 | (ch >> 6)]); sbuf.append(hex[0x80 | (ch & 0x3F)]); } else { // 0x7FF < ch <= 0xFFFF sbuf.append(hex[0xe0 | (ch >> 12)]); sbuf.append(hex[0x80 | ((ch >> 6) & 0x3F)]); sbuf.append(hex[0x80 | (ch & 0x3F)]); } } return sbuf.toString(); } // from: http://www.w3.org/International/unescape.java public static String unescape(final String s) { final StringBuilder sbuf = new StringBuilder(); final int l = s.length(); int ch = -1; int b, sumb = 0; for (int i = 0, more = -1; i < l; i++) { /* Get next byte b from URL segment s */ switch (ch = s.charAt(i)) { case '%': ch = s.charAt(++i) ; final int hb = (Character.isDigit ((char) ch) ? ch - '0' : 10 + Character.toLowerCase((char) ch) - 'a') & 0xF; ch = s.charAt(++i) ; final int lb = (Character.isDigit ((char) ch) ? ch - '0' : 10 + Character.toLowerCase ((char) ch) - 'a') & 0xF; b = (hb << 4) | lb; break; case '+': b = ' '; break; default: b = ch; } /* Decode byte b as UTF-8, sumb collects incomplete chars */ if ((b & 0xc0) == 0x80) { // 10xxxxxx (continuation byte) sumb = (sumb << 6) | (b & 0x3f) ; // Add 6 bits to sumb if (--more == 0) sbuf.append((char) sumb) ; // Add char to sbuf } else if ((b & 0x80) == 0x00) { // 0xxxxxxx (yields 7 bits) sbuf.append((char) b) ; // Store in sbuf } else if ((b & 0xe0) == 0xc0) { // 110xxxxx (yields 5 bits) sumb = b & 0x1f; more = 1; // Expect 1 more byte } else if ((b & 0xf0) == 0xe0) { // 1110xxxx (yields 4 bits) sumb = b & 0x0f; more = 2; // Expect 2 more bytes } else if ((b & 0xf8) == 0xf0) { // 11110xxx (yields 3 bits) sumb = b & 0x07; more = 3; // Expect 3 more bytes } else if ((b & 0xfc) == 0xf8) { // 111110xx (yields 2 bits) sumb = b & 0x03; more = 4; // Expect 4 more bytes } else /*if ((b & 0xfe) == 0xfc)*/ { // 1111110x (yields 1 bit) sumb = b & 0x01; more = 5; // Expect 5 more bytes } /* We don't test if the UTF-8 encoding is well-formed */ } return sbuf.toString(); } private void identPort(final String inputURL, final int dflt) throws MalformedURLException { // identify ref in file final int r = this.host.indexOf(':'); if (r < 0) { this.port = dflt; } else { try { final String portStr = this.host.substring(r + 1); if (portStr.trim().length() > 0) this.port = Integer.parseInt(portStr); else this.port = -1; this.host = this.host.substring(0, r); } catch (final NumberFormatException e) { throw new MalformedURLException("wrong port in host fragment '" + this.host + "' of input url '" + inputURL + "'"); } } } private void identRef() { // identify ref in file final int r = path.indexOf('#'); if (r < 0) { this.ref = null; } else { this.ref = path.substring(r + 1); this.path = path.substring(0, r); } } private void identQuest() { // identify quest in file final int r = path.indexOf('?'); if (r < 0) { this.quest = null; } else { this.quest = path.substring(r + 1); this.path = path.substring(0, r); } } public String getFile() { return getFile(true); } public String getFile(final boolean includeReference) { // this is the path plus quest plus ref // if there is no quest and no ref the result is identical to getPath // this is defined according to http://java.sun.com/j2se/1.4.2/docs/api/java/net/URL.html#getFile() if (quest != null) return ((includeReference) && (ref != null)) ? path + "?" + quest + "#" + ref : path + "?" + quest; return ((includeReference) && (ref != null)) ? path + "#" + ref : path; } public String getFileName() { // this is a method not defined in any sun api // it returns the last portion of a path without any reference final int p = path.lastIndexOf('/'); if (p < 0) return path; if (p == path.length() - 1) return ""; // no file name, this is a path to a directory return path.substring(p + 1); // the 'real' file name } public String getPath() { return path; } public String getAuthority() { return ((port >= 0) && (host != null)) ? host + ":" + port : ((host != null) ? host : ""); } public String getHost() { return host; } public int getPort() { return port; } public String getProtocol() { return protocol; } public String getRef() { return ref; } public String getUserInfo() { return userInfo; } public String getQuery() { return quest; } public String toString() { return toNormalform(false, true); } public String toNormalform(final boolean stripReference, final boolean stripAmp) { String result = toNormalform(!stripReference); if (stripAmp) { result = result.replaceAll("&", "&"); } return result; } private String toNormalform(final boolean includeReference) { // generates a normal form of the URL boolean defaultPort = false; if (this.protocol.equals("mailto")) { return this.protocol + ":" + this.userInfo + "@" + this.host; } else if (this.protocol.equals("http")) { if (this.port < 0 || this.port == 80) { defaultPort = true; } } else if (this.protocol.equals("ftp")) { if (this.port < 0 || this.port == 21) { defaultPort = true; } } else if (this.protocol.equals("https")) { if (this.port < 0 || this.port == 443) { defaultPort = true; } } final String path = resolveBackpath(this.getFile(includeReference)); if (defaultPort) { return this.protocol + "://" + ((this.userInfo != null) ? (this.userInfo + "@") : ("")) + this.getHost().toLowerCase() + path; } return this.protocol + "://" + ((this.userInfo != null) ? (this.userInfo + "@") : ("")) + this.getHost().toLowerCase() + ((defaultPort) ? ("") : (":" + this.port)) + path; } /* (non-Javadoc) * @see java.lang.Object#hashCode() */ @Override public int hashCode() { final int prime = 31; int result = 1; result = prime * result + ((host == null) ? 0 : host.hashCode()); result = prime * result + ((path == null) ? 0 : path.hashCode()); result = prime * result + port; result = prime * result + ((protocol == null) ? 0 : protocol.hashCode()); result = prime * result + ((quest == null) ? 0 : quest.hashCode()); result = prime * result + ((ref == null) ? 0 : ref.hashCode()); result = prime * result + ((userInfo == null) ? 0 : userInfo.hashCode()); return result; } /* (non-Javadoc) * @see java.lang.Object#equals(java.lang.Object) */ @Override public boolean equals(Object obj) { if (this == obj) return true; if (obj == null) return false; if (!(obj instanceof yacyURL)) return false; yacyURL other = (yacyURL) obj; if (host == null) { if (other.host != null) return false; } else if (!host.equals(other.host)) return false; if (path == null) { if (other.path != null) return false; } else if (!path.equals(other.path)) return false; if (port != other.port) return false; if (protocol == null) { if (other.protocol != null) return false; } else if (!protocol.equals(other.protocol)) return false; if (quest == null) { if (other.quest != null) return false; } else if (!quest.equals(other.quest)) return false; if (ref == null) { if (other.ref != null) return false; } else if (!ref.equals(other.ref)) return false; if (userInfo == null) { if (other.userInfo != null) return false; } else if (!userInfo.equals(other.userInfo)) return false; return true; } public int compareTo(final Object h) { assert (h instanceof yacyURL); return this.toString().compareTo(((yacyURL) h).toString()); } public boolean isPOST() { return (this.quest != null) && (this.quest.length() > 0); } public boolean isCGI() { final String ls = path.toLowerCase(); return ((ls.indexOf(".cgi") >= 0) || (ls.indexOf(".exe") >= 0) || (ls.indexOf(";jsessionid=") >= 0) || (ls.indexOf("sessionid/") >= 0) || (ls.indexOf("phpsessid=") >= 0) || (ls.indexOf("search.php?sid=") >= 0) || (ls.indexOf("memberlist.php?sid=") >= 0)); } // static methods from plasmaURL public static final int flagTypeID(final String hash) { return (Base64Order.enhancedCoder.decodeByte(hash.charAt(11)) & 32) >> 5; } public static final int flagTLDID(final String hash) { return (Base64Order.enhancedCoder.decodeByte(hash.charAt(11)) & 28) >> 2; } public static final int flagLengthID(final String hash) { return (Base64Order.enhancedCoder.decodeByte(hash.charAt(11)) & 3); } public final String hash() { // in case that the object was initialized without a known url hash, compute it now if (this.hash == null) this.hash = urlHashComputation(); return this.hash; } private final String urlHashComputation() { // the url hash computation needs a DNS lookup to check if the addresses domain is local // that causes that this method may be very slow assert this.hash == null; // should only be called if the hash was not computed bevore final int id = serverDomains.getDomainID(this.host); // id=7: tld is local final boolean isHTTP = this.protocol.equals("http"); int p = this.host.lastIndexOf('.'); String dom = (p > 0) ? dom = host.substring(0, p) : ""; p = dom.lastIndexOf('.'); // locate subdomain String subdom = ""; if (p > 0) { subdom = dom.substring(0, p); dom = dom.substring(p + 1); } // find rootpath int rootpathStart = 0; int rootpathEnd = this.path.length() - 1; if (this.path.startsWith("/")) rootpathStart = 1; if (this.path.endsWith("/")) rootpathEnd = this.path.length() - 2; p = this.path.indexOf('/', rootpathStart); String rootpath = ""; if (p > 0 && p < rootpathEnd) { rootpath = path.substring(rootpathStart, p); } // we collected enough information to compute the fragments that are // basis for hashes final int l = dom.length(); final int domlengthKey = (l <= 8) ? 0 : (l <= 12) ? 1 : (l <= 16) ? 2 : 3; final byte flagbyte = (byte) (((isHTTP) ? 0 : 32) | (id << 2) | domlengthKey); // combine the attributes final StringBuilder hash = new StringBuilder(12); // form the 'local' part of the hash hash.append(Base64Order.enhancedCoder.encode(Digest.encodeMD5Raw(toNormalform(true, true))).substring(0, 5)); // 5 chars hash.append(subdomPortPath(subdom, port, rootpath)); // 1 char // form the 'global' part of the hash hash.append(hosthash5(this.protocol, host, port)); // 5 chars hash.append(Base64Order.enhancedCoder.encodeByte(flagbyte)); // 1 char // return result hash return hash.toString(); } private static char subdomPortPath(final String subdom, final int port, final String rootpath) { return Base64Order.enhancedCoder.encode(Digest.encodeMD5Raw(subdom + ":" + port + ":" + rootpath)).charAt(0); } private static final char rootURLFlag0 = subdomPortPath("", 80, ""); private static final char rootURLFlag1 = subdomPortPath("www", 80, ""); public static final boolean probablyRootURL(final String urlHash) { return (urlHash.charAt(5) == rootURLFlag0) || (urlHash.charAt(5) == rootURLFlag1); } private static final String hosthash5(final String protocol, final String host, final int port) { return Base64Order.enhancedCoder.encode(Digest.encodeMD5Raw(protocol + ":" + host + ":" + port)).substring(0, 5); } /** * compute a 6-byte hash fragment that can be used to identify the domain of the url * @param protocol * @param host * @param port * @return 6 bytes base64 encoded String representing the domain of the url */ public static final String hosthash6(final String protocol, final String host, final int port) { final StringBuilder hash = new StringBuilder(12); final int id = serverDomains.getDomainID(host); // id=7: tld is local int p = host.lastIndexOf('.'); String dom = (p > 0) ? dom = host.substring(0, p) : ""; p = dom.lastIndexOf('.'); if (p > 0) dom = dom.substring(p + 1); final int l = dom.length(); final int domlengthKey = (l <= 8) ? 0 : (l <= 12) ? 1 : (l <= 16) ? 2 : 3; final byte flagbyte = (byte) (((protocol.equals("http")) ? 0 : 32) | (id << 2) | domlengthKey); hash.append(hosthash5(protocol, host, port)); // 5 chars hash.append(Base64Order.enhancedCoder.encodeByte(flagbyte)); // 1 char // return result hash return hash.toString(); } public static final String hosthash6(final String host) { return hosthash6("http", host, 80); } private static String[] testTLDs = new String[] { "com", "net", "org", "uk", "fr", "de", "es", "it" }; public static final yacyURL probablyWordURL(final String urlHash, final TreeSet words) { final Iterator wi = words.iterator(); String word; while (wi.hasNext()) { word = wi.next(); if ((word == null) || (word.length() == 0)) continue; final String pattern = urlHash.substring(6, 11); for (int i = 0; i < testTLDs.length; i++) { if (pattern.equals(hosthash5("http", "www." + word.toLowerCase() + "." + testTLDs[i], 80))) try { return new yacyURL("http://www." + word.toLowerCase() + "." + testTLDs[i], null); } catch (final MalformedURLException e) { return null; } } } return null; } public static final boolean isWordRootURL(final String givenURLHash, final TreeSet words) { if (!(probablyRootURL(givenURLHash))) return false; final yacyURL wordURL = probablyWordURL(givenURLHash, words); if (wordURL == null) return false; if (wordURL.hash().equals(givenURLHash)) return true; return false; } public static final int domLengthEstimation(final String urlHash) { // generates an estimation of the original domain length assert (urlHash != null); assert (urlHash.length() == 12) : "urlhash = " + urlHash; final int flagbyte = Base64Order.enhancedCoder.decodeByte(urlHash.charAt(11)); final int domLengthKey = flagbyte & 3; switch (domLengthKey) { case 0: return 4; case 1: return 10; case 2: return 14; case 3: return 20; } return 20; } public static int domLengthNormalized(final String urlHash) { return domLengthEstimation(urlHash) << 8 / 20; } public static final int domDomain(final String urlHash) { // returns the ID of the domain of the domain assert (urlHash != null); assert (urlHash.length() == 12 || urlHash.length() == 6) : "urlhash = " + urlHash; return (Base64Order.enhancedCoder.decodeByte(urlHash.charAt((urlHash.length() == 12) ? 11 : 5)) & 28) >> 2; } public static boolean isDomDomain(final String urlHash, final int id) { return domDomain(urlHash) == id; } public static boolean matchesAnyDomDomain(final String urlHash, final int idset) { // this is a boolean matching on a set of domDomains return (domDomain(urlHash) | idset) != 0; } // checks for local/global IP range and local IP public boolean isLocal() { if (this.hash == null) { if (this.host.startsWith("0:0:0:0:0:0:0:1") || this.host.startsWith("127.") || this.host.equals("localhost")) return true; synchronized (this) { this.hash = urlHashComputation(); } } return domDomain(this.hash) == 7; } public static final boolean isLocal(String urlhash) { return domDomain(urlhash) == 7; } // language calculation public String language() { String language = "en"; final int pos = host.lastIndexOf("."); if ((pos > 0) && (host.length() - pos == 3)) language = host.substring(pos + 1).toLowerCase(); return language; } public static void main(final String[] args) { final String[][] test = new String[][]{ new String[]{null, "http://www.anomic.de/home/test?x=1#home"}, new String[]{null, "http://www.anomic.de/home/test?x=1"}, new String[]{null, "http://www.anomic.de/home/test#home"}, new String[]{null, "ftp://ftp.anomic.de/home/test#home"}, new String[]{null, "http://www.anomic.de/home/../abc/"}, new String[]{null, "mailto:abcdefg@nomailnomail.com"}, new String[]{"http://www.anomic.de/home", "test"}, new String[]{"http://www.anomic.de/home", "test/"}, new String[]{"http://www.anomic.de/home/", "test"}, new String[]{"http://www.anomic.de/home/", "test/"}, new String[]{"http://www.anomic.de/home/index.html", "test.htm"}, new String[]{"http://www.anomic.de/home/index.html", "http://www.yacy.net/test"}, new String[]{"http://www.anomic.de/home/index.html", "ftp://ftp.yacy.net/test"}, new String[]{"http://www.anomic.de/home/index.html", "../test"}, new String[]{"http://www.anomic.de/home/index.html", "mailto:abcdefg@nomailnomail.com"}, new String[]{null, "news:de.test"}, new String[]{"http://www.anomic.de/home", "news:de.test"}, new String[]{"http://www.anomic.de/home", "ftp://ftp.anomic.de/src"}, new String[]{null, "ftp://ftp.delegate.org/"}, new String[]{"http://www.anomic.de/home", "ftp://ftp.delegate.org/"}, new String[]{"http://www.anomic.de","mailto:yacy@weltherrschaft.org"}, new String[]{"http://www.anomic.de","javascipt:temp"}, new String[]{null,"http://yacy-websuche.de/wiki/index.php?title=De:IntroInformationFreedom&action=history"}, new String[]{null, "http://diskusjion.no/index.php?s=5bad5f431a106d9a8355429b81bb0ca5&showuser=23585"}, new String[]{null, "http://diskusjion.no/index.php?s=5bad5f431a106d9a8355429b81bb0ca5&showuser=23585"} }; String environment, url; yacyURL aURL, aURL1; java.net.URL jURL; for (int i = 0; i < test.length; i++) { environment = test[i][0]; url = test[i][1]; try {aURL = yacyURL.newURL(environment, url);} catch (final MalformedURLException e) {aURL = null;} if (environment == null) { try {jURL = new java.net.URL(url);} catch (final MalformedURLException e) {jURL = null;} } else { try {jURL = new java.net.URL(new java.net.URL(environment), url);} catch (final MalformedURLException e) {jURL = null;} } // check equality to java.net.URL if (((aURL == null) && (jURL != null)) || ((aURL != null) && (jURL == null)) || ((aURL != null) && (jURL != null) && (!(jURL.toString().equals(aURL.toString()))))) { System.out.println("Difference for environment=" + environment + ", url=" + url + ":"); System.out.println((jURL == null) ? "jURL rejected input" : "jURL=" + jURL.toString()); System.out.println((aURL == null) ? "aURL rejected input" : "aURL=" + aURL.toString()); } // check stability: the normalform of the normalform must be equal to the normalform if (aURL != null) try { aURL1 = new yacyURL(aURL.toNormalform(false, true), null); if (!(aURL1.toNormalform(false, true).equals(aURL.toNormalform(false, true)))) { System.out.println("no stability for url:"); System.out.println("aURL0=" + aURL.toString()); System.out.println("aURL1=" + aURL1.toString()); } } catch (final MalformedURLException e) { System.out.println("no stability for url:"); System.out.println("aURL0=" + aURL.toString()); System.out.println("aURL1 cannot be computed:" + e.getMessage()); } } } }