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JDK 11 java.base.jmod - Base Module
JDK 11 java.base.jmod is the JMOD file for JDK 11 Base module.
JDK 11 Base module compiled class files are stored in \fyicenter\jdk-11.0.1\jmods\java.base.jmod.
JDK 11 Base module compiled class files are also linked and stored in the \fyicenter\jdk-11.0.1\lib\modules JImage file.
JDK 11 Base module source code files are stored in \fyicenter\jdk-11.0.1\lib\src.zip\java.base.
You can click and view the content of each source code file in the list below.
✍: FYIcenter
⏎ java/net/URLPermission.java
/* * Copyright (c) 2013, 2017, Oracle and/or its affiliates. All rights reserved. * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. * * * * * * * * * * * * * * * * * * * * */ package java.net; import java.io.ObjectInputStream; import java.io.IOException; import java.util.List; import java.util.ArrayList; import java.util.Collections; import java.security.Permission; /** * Represents permission to access a resource or set of resources defined by a * given url, and for a given set of user-settable request methods * and request headers. The <i>name</i> of the permission is the url string. * The <i>actions</i> string is a concatenation of the request methods and headers. * The range of method and header names is not restricted by this class. * <p><b>The url</b><p> * The url string has the following expected structure. * <pre> * scheme : // authority [ / path ] * </pre> * <i>scheme</i> will typically be http or https, but is not restricted by this * class. * <i>authority</i> is specified as: * <pre> * authority = [ userinfo @ ] hostrange [ : portrange ] * portrange = portnumber | -portnumber | portnumber-[portnumber] | * * hostrange = ([*.] dnsname) | IPv4address | IPv6address * </pre> * <i>dnsname</i> is a standard DNS host or domain name, ie. one or more labels * separated by ".". <i>IPv4address</i> is a standard literal IPv4 address and * <i>IPv6address</i> is as defined in <a href="http://www.ietf.org/rfc/rfc2732.txt"> * RFC 2732</a>. Literal IPv6 addresses must however, be enclosed in '[]' characters. * The <i>dnsname</i> specification can be preceded by "*." which means * the name will match any hostname whose right-most domain labels are the same as * this name. For example, "*.oracle.com" matches "foo.bar.oracle.com" * <p> * <i>portrange</i> is used to specify a port number, or a bounded or unbounded range of ports * that this permission applies to. If portrange is absent or invalid, then a default * port number is assumed if the scheme is {@code http} (default 80) or {@code https} * (default 443). No default is assumed for other schemes. A wildcard may be specified * which means all ports. * <p> * <i>userinfo</i> is optional. A userinfo component if present, is ignored when * creating a URLPermission, and has no effect on any other methods defined by this class. * <p> * The <i>path</i> component comprises a sequence of path segments, * separated by '/' characters. <i>path</i> may also be empty. The path is specified * in a similar way to the path in {@link java.io.FilePermission}. There are * three different ways as the following examples show: * <table class="striped"> * <caption>URL Examples</caption> * <thead> * <tr><th scope="col">Example url</th><th scope="col">Description</th></tr> * </thead> * <tbody style="text-align:left"> * <tr><th scope="row" style="white-space:nowrap;">http://www.oracle.com/a/b/c.html</th> * <td>A url which identifies a specific (single) resource</td> * </tr> * <tr><th scope="row">http://www.oracle.com/a/b/*</th> * <td>The '*' character refers to all resources in the same "directory" - in * other words all resources with the same number of path components, and * which only differ in the final path component, represented by the '*'. * </td> * </tr> * <tr><th scope="row">http://www.oracle.com/a/b/-</th> * <td>The '-' character refers to all resources recursively below the * preceding path (eg. http://www.oracle.com/a/b/c/d/e.html matches this * example). * </td> * </tr> * </tbody> * </table> * <p> * The '*' and '-' may only be specified in the final segment of a path and must be * the only character in that segment. Any query or fragment components of the * url are ignored when constructing URLPermissions. * <p> * As a special case, urls of the form, "scheme:*" are accepted to * mean any url of the given scheme. * <p> * The <i>scheme</i> and <i>authority</i> components of the url string are handled * without regard to case. This means {@link #equals(Object)}, * {@link #hashCode()} and {@link #implies(Permission)} are case insensitive with respect * to these components. If the <i>authority</i> contains a literal IP address, * then the address is normalized for comparison. The path component is case sensitive. * <p><b>The actions string</b><p> * The actions string of a URLPermission is a concatenation of the <i>method list</i> * and the <i>request headers list</i>. These are lists of the permitted request * methods and permitted request headers of the permission (respectively). The two lists * are separated by a colon ':' character and elements of each list are comma separated. * Some examples are: * <ul> * <li>"POST,GET,DELETE" * <li>"GET:X-Foo-Request,X-Bar-Request" * <li>"POST,GET:Header1,Header2" * </ul> * <p> * The first example specifies the methods: POST, GET and DELETE, but no request headers. * The second example specifies one request method and two headers. The third * example specifies two request methods, and two headers. * <p> * The colon separator need not be present if the request headers list is empty. * No white-space is permitted in the actions string. The action strings supplied to * the URLPermission constructors are case-insensitive and are normalized by converting * method names to upper-case and header names to the form defines in RFC2616 (lower case * with initial letter of each word capitalized). Either list can contain a wild-card '*' * character which signifies all request methods or headers respectively. * <p> * Note. Depending on the context of use, some request methods and headers may be permitted * at all times, and others may not be permitted at any time. For example, the * HTTP protocol handler might disallow certain headers such as Content-Length * from being set by application code, regardless of whether the security policy * in force, permits it. * * @since 1.8 */ public final class URLPermission extends Permission { private static final long serialVersionUID = -2702463814894478682L; private transient String scheme; private transient String ssp; // scheme specific part private transient String path; private transient List<String> methods; private transient List<String> requestHeaders; private transient Authority authority; // serialized field private String actions; /** * Creates a new URLPermission from a url string and which permits the given * request methods and user-settable request headers. * The name of the permission is the url string it was created with. Only the scheme, * authority and path components of the url are used internally. Any fragment or query * components are ignored. The permissions action string is as specified above. * * @param url the url string * * @param actions the actions string * * @exception IllegalArgumentException if url is invalid or if actions contains white-space. */ public URLPermission(String url, String actions) { super(url); init(actions); } private void init(String actions) { parseURI(getName()); int colon = actions.indexOf(':'); if (actions.lastIndexOf(':') != colon) { throw new IllegalArgumentException( "Invalid actions string: \"" + actions + "\""); } String methods, headers; if (colon == -1) { methods = actions; headers = ""; } else { methods = actions.substring(0, colon); headers = actions.substring(colon+1); } List<String> l = normalizeMethods(methods); Collections.sort(l); this.methods = Collections.unmodifiableList(l); l = normalizeHeaders(headers); Collections.sort(l); this.requestHeaders = Collections.unmodifiableList(l); this.actions = actions(); } /** * Creates a URLPermission with the given url string and unrestricted * methods and request headers by invoking the two argument * constructor as follows: URLPermission(url, "*:*") * * @param url the url string * * @throws IllegalArgumentException if url does not result in a valid {@link URI} */ public URLPermission(String url) { this(url, "*:*"); } /** * Returns the normalized method list and request * header list, in the form: * <pre> * "method-names : header-names" * </pre> * <p> * where method-names is the list of methods separated by commas * and header-names is the list of permitted headers separated by commas. * There is no white space in the returned String. If header-names is empty * then the colon separator may not be present. */ public String getActions() { return actions; } /** * Checks if this URLPermission implies the given permission. * Specifically, the following checks are done as if in the * following sequence: * <ul> * <li>if 'p' is not an instance of URLPermission return false</li> * <li>if any of p's methods are not in this's method list, and if * this's method list is not equal to "*", then return false.</li> * <li>if any of p's headers are not in this's request header list, and if * this's request header list is not equal to "*", then return false.</li> * <li>if this's url scheme is not equal to p's url scheme return false</li> * <li>if the scheme specific part of this's url is '*' return true</li> * <li>if the set of hosts defined by p's url hostrange is not a subset of * this's url hostrange then return false. For example, "*.foo.oracle.com" * is a subset of "*.oracle.com". "foo.bar.oracle.com" is not * a subset of "*.foo.oracle.com"</li> * <li>if the portrange defined by p's url is not a subset of the * portrange defined by this's url then return false. * <li>if the path or paths specified by p's url are contained in the * set of paths specified by this's url, then return true * <li>otherwise, return false</li> * </ul> * <p>Some examples of how paths are matched are shown below: * <table class="plain"> * <caption>Examples of Path Matching</caption> * <thead> * <tr><th scope="col">this's path</th><th scope="col">p's path</th><th>match</th></tr> * </thead> * <tbody style="text-align:left"> * <tr><th scope="row">/a/b</th><th scope="row">/a/b</th><td>yes</td></tr> * <tr><th scope="row" rowspan="3">/a/b/*</th><th scope="row">/a/b/c</th><td>yes</td></tr> * <tr> <th scope="row">/a/b/c/d</th><td>no</td></tr> * <tr> <th scope="row">/a/b/c/-</th><td>no</td></tr> * <tr><th scope="row" rowspan="3">/a/b/-</th><th scope="row">/a/b/c/d</th><td>yes</td></tr> * <tr> <th scope="row">/a/b/c/d/e</th><td>yes</td></tr> * <tr> <th scope="row">/a/b/c/*</th><td>yes</td></tr> * </tbody> * </table> */ public boolean implies(Permission p) { if (! (p instanceof URLPermission)) { return false; } URLPermission that = (URLPermission)p; if (this.methods.isEmpty() && !that.methods.isEmpty()) { return false; } if (!this.methods.isEmpty() && !this.methods.get(0).equals("*") && Collections.indexOfSubList(this.methods, that.methods) == -1) { return false; } if (this.requestHeaders.isEmpty() && !that.requestHeaders.isEmpty()) { return false; } if (!this.requestHeaders.isEmpty() && !this.requestHeaders.get(0).equals("*") && Collections.indexOfSubList(this.requestHeaders, that.requestHeaders) == -1) { return false; } if (!this.scheme.equals(that.scheme)) { return false; } if (this.ssp.equals("*")) { return true; } if (!this.authority.implies(that.authority)) { return false; } if (this.path == null) { return that.path == null; } if (that.path == null) { return false; } if (this.path.endsWith("/-")) { String thisprefix = this.path.substring(0, this.path.length() - 1); return that.path.startsWith(thisprefix); } if (this.path.endsWith("/*")) { String thisprefix = this.path.substring(0, this.path.length() - 1); if (!that.path.startsWith(thisprefix)) { return false; } String thatsuffix = that.path.substring(thisprefix.length()); // suffix must not contain '/' chars if (thatsuffix.indexOf('/') != -1) { return false; } if (thatsuffix.equals("-")) { return false; } return true; } return this.path.equals(that.path); } /** * Returns true if, this.getActions().equals(p.getActions()) * and p's url equals this's url. Returns false otherwise. */ public boolean equals(Object p) { if (!(p instanceof URLPermission)) { return false; } URLPermission that = (URLPermission)p; if (!this.scheme.equals(that.scheme)) { return false; } if (!this.getActions().equals(that.getActions())) { return false; } if (!this.authority.equals(that.authority)) { return false; } if (this.path != null) { return this.path.equals(that.path); } else { return that.path == null; } } /** * Returns a hashcode calculated from the hashcode of the * actions String and the url string. */ public int hashCode() { return getActions().hashCode() + scheme.hashCode() + authority.hashCode() + (path == null ? 0 : path.hashCode()); } private List<String> normalizeMethods(String methods) { List<String> l = new ArrayList<>(); StringBuilder b = new StringBuilder(); for (int i=0; i<methods.length(); i++) { char c = methods.charAt(i); if (c == ',') { String s = b.toString(); if (s.length() > 0) l.add(s); b = new StringBuilder(); } else if (c == ' ' || c == '\t') { throw new IllegalArgumentException( "White space not allowed in methods: \"" + methods + "\""); } else { if (c >= 'a' && c <= 'z') { c += 'A' - 'a'; } b.append(c); } } String s = b.toString(); if (s.length() > 0) l.add(s); return l; } private List<String> normalizeHeaders(String headers) { List<String> l = new ArrayList<>(); StringBuilder b = new StringBuilder(); boolean capitalizeNext = true; for (int i=0; i<headers.length(); i++) { char c = headers.charAt(i); if (c >= 'a' && c <= 'z') { if (capitalizeNext) { c += 'A' - 'a'; capitalizeNext = false; } b.append(c); } else if (c == ' ' || c == '\t') { throw new IllegalArgumentException( "White space not allowed in headers: \"" + headers + "\""); } else if (c == '-') { capitalizeNext = true; b.append(c); } else if (c == ',') { String s = b.toString(); if (s.length() > 0) l.add(s); b = new StringBuilder(); capitalizeNext = true; } else { capitalizeNext = false; b.append(c); } } String s = b.toString(); if (s.length() > 0) l.add(s); return l; } private void parseURI(String url) { int len = url.length(); int delim = url.indexOf(':'); if (delim == -1 || delim + 1 == len) { throw new IllegalArgumentException( "Invalid URL string: \"" + url + "\""); } scheme = url.substring(0, delim).toLowerCase(); this.ssp = url.substring(delim + 1); if (!ssp.startsWith("//")) { if (!ssp.equals("*")) { throw new IllegalArgumentException( "Invalid URL string: \"" + url + "\""); } this.authority = new Authority(scheme, "*"); return; } String authpath = ssp.substring(2); delim = authpath.indexOf('/'); String auth; if (delim == -1) { this.path = ""; auth = authpath; } else { auth = authpath.substring(0, delim); this.path = authpath.substring(delim); } this.authority = new Authority(scheme, auth.toLowerCase()); } private String actions() { // The colon separator is optional when the request headers list is // empty.This implementation chooses to include it even when the request // headers list is empty. return String.join(",", methods) + ":" + String.join(",", requestHeaders); } /** * restore the state of this object from stream */ private void readObject(ObjectInputStream s) throws IOException, ClassNotFoundException { ObjectInputStream.GetField fields = s.readFields(); String actions = (String)fields.get("actions", null); init(actions); } static class Authority { HostPortrange p; Authority(String scheme, String authority) { int at = authority.indexOf('@'); if (at == -1) { p = new HostPortrange(scheme, authority); } else { p = new HostPortrange(scheme, authority.substring(at+1)); } } boolean implies(Authority other) { return impliesHostrange(other) && impliesPortrange(other); } private boolean impliesHostrange(Authority that) { String thishost = this.p.hostname(); String thathost = that.p.hostname(); if (p.wildcard() && thishost.equals("")) { // this "*" implies all others return true; } if (that.p.wildcard() && thathost.equals("")) { // that "*" can only be implied by this "*" return false; } if (thishost.equals(thathost)) { // covers all cases of literal IP addresses and fixed // domain names. return true; } if (this.p.wildcard()) { // this "*.foo.com" implies "bub.bar.foo.com" return thathost.endsWith(thishost); } return false; } private boolean impliesPortrange(Authority that) { int[] thisrange = this.p.portrange(); int[] thatrange = that.p.portrange(); if (thisrange[0] == -1) { /* port not specified non http/s URL */ return true; } return thisrange[0] <= thatrange[0] && thisrange[1] >= thatrange[1]; } boolean equals(Authority that) { return this.p.equals(that.p); } public int hashCode() { return p.hashCode(); } } }
⏎ java/net/URLPermission.java
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2020-05-29, 246017👍, 0💬
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