package org.jruby;
import org.jruby.anno.JRubyMethod;
import org.jruby.anno.JRubyModule;
import org.jruby.common.IRubyWarnings.ID;
import org.jruby.ext.posix.Passwd;
import org.jruby.ext.posix.Group;
import org.jruby.ext.posix.POSIX;
import org.jruby.ext.posix.util.Platform;
import org.jruby.runtime.Block;
import org.jruby.runtime.ThreadContext;
import org.jruby.runtime.builtin.IRubyObject;
@JRubyModule(name="Etc")
public class RubyEtc {
public static RubyModule createEtcModule(Ruby runtime) {
RubyModule etcModule = runtime.defineModule("Etc");
runtime.setEtc(etcModule);
etcModule.defineAnnotatedMethods(RubyEtc.class);
definePasswdStruct(runtime);
defineGroupStruct(runtime);
return etcModule;
}
private static void definePasswdStruct(Ruby runtime) {
IRubyObject[] args = new IRubyObject[] {
runtime.newString("Passwd"),
runtime.newSymbol("name"),
runtime.newSymbol("passwd"),
runtime.newSymbol("uid"),
runtime.newSymbol("gid"),
runtime.newSymbol("gecos"),
runtime.newSymbol("dir"),
runtime.newSymbol("shell"),
runtime.newSymbol("change"),
runtime.newSymbol("uclass"),
runtime.newSymbol("expire")
};
runtime.setPasswdStruct(RubyStruct.newInstance(runtime.getStructClass(), args, Block.NULL_BLOCK));
}
private static void defineGroupStruct(Ruby runtime) {
IRubyObject[] args = new IRubyObject[] {
runtime.newString("Group"),
runtime.newSymbol("name"),
runtime.newSymbol("passwd"),
runtime.newSymbol("gid"),
runtime.newSymbol("mem")
};
runtime.setGroupStruct(RubyStruct.newInstance(runtime.getStructClass(), args, Block.NULL_BLOCK));
}
private static IRubyObject setupPasswd(Ruby runtime, Passwd passwd) {
IRubyObject[] args = new IRubyObject[] {
runtime.newString(passwd.getLoginName()),
runtime.newString(passwd.getPassword()),
runtime.newFixnum(passwd.getUID()),
runtime.newFixnum(passwd.getGID()),
runtime.newString(passwd.getGECOS()),
runtime.newString(passwd.getHome()),
runtime.newString(passwd.getShell()),
runtime.newFixnum(passwd.getPasswdChangeTime()),
runtime.newString(passwd.getAccessClass()),
runtime.newFixnum(passwd.getExpire())
};
return RubyStruct.newStruct(runtime.getPasswdStruct(), args, Block.NULL_BLOCK);
}
private static IRubyObject setupGroup(Ruby runtime, Group group) {
IRubyObject[] args = new IRubyObject[] {
runtime.newString(group.getName()),
runtime.newString(group.getPassword()),
runtime.newFixnum(group.getGID()),
intoStringArray(runtime, group.getMembers())
};
return RubyStruct.newStruct(runtime.getGroupStruct(), args, Block.NULL_BLOCK);
}
private static IRubyObject intoStringArray(Ruby runtime, String[] members) {
IRubyObject[] arr = new IRubyObject[members.length];
for(int i = 0; i<arr.length; i++) {
arr[i] = runtime.newString(members[i]);
}
return runtime.newArrayNoCopy(arr);
}
@JRubyMethod(name = "getpwuid", optional=1, module = true)
public static IRubyObject getpwuid(IRubyObject recv, IRubyObject[] args) {
Ruby runtime = recv.getRuntime();
POSIX posix = runtime.getPosix();
try {
int uid = args.length == 0 ? posix.getuid() : RubyNumeric.fix2int(args[0]);
Passwd pwd = posix.getpwuid(uid);
if(pwd == null) {
if (Platform.IS_WINDOWS) { // MRI behavior
return recv.getRuntime().getNil();
}
throw runtime.newArgumentError("can't find user for " + uid);
}
return setupPasswd(runtime, pwd);
} catch (Exception e) {
if (runtime.getDebug().isTrue()) {
runtime.getWarnings().warn(ID.NOT_IMPLEMENTED, "Etc.getpwuid is not supported by JRuby on this platform", e);
}
return runtime.getNil();
}
}
@JRubyMethod(name = "getpwnam", required=1, module = true)
public static IRubyObject getpwnam(IRubyObject recv, IRubyObject name) {
Ruby runtime = recv.getRuntime();
String nam = name.convertToString().toString();
try {
Passwd pwd = runtime.getPosix().getpwnam(nam);
if(pwd == null) {
if (Platform.IS_WINDOWS) { // MRI behavior
return runtime.getNil();
}
throw runtime.newArgumentError("can't find user for " + nam);
}
return setupPasswd(recv.getRuntime(), pwd);
} catch (Exception e) {
if (runtime.getDebug().isTrue()) {
runtime.getWarnings().warn(ID.NOT_IMPLEMENTED, "Etc.getpwnam is not supported by JRuby on this platform", e);
}
return runtime.getNil();
}
}
@JRubyMethod(name = "passwd", module = true, frame=true)
public static IRubyObject passwd(IRubyObject recv, Block block) {
Ruby runtime = recv.getRuntime();
POSIX posix = runtime.getPosix();
try {
// call getpwent to fail early if unsupported
posix.getpwent();
if(block.isGiven()) {
ThreadContext context = runtime.getCurrentContext();
posix.setpwent();
Passwd pw;
while((pw = posix.getpwent()) != null) {
block.yield(context, setupPasswd(runtime, pw));
}
posix.endpwent();
}
Passwd pw = posix.getpwent();
if (pw != null) {
return setupPasswd(runtime, pw);
} else {
return runtime.getNil();
}
} catch (Exception e) {
if (runtime.getDebug().isTrue()) {
runtime.getWarnings().warn(ID.NOT_IMPLEMENTED, "Etc.passwd is not supported by JRuby on this platform", e);
}
return runtime.getNil();
}
}
@JRubyMethod(name = "getlogin", module = true)
public static IRubyObject getlogin(IRubyObject recv) {
Ruby runtime = recv.getRuntime();
try {
String login = runtime.getPosix().getlogin();
if (login != null) {
return runtime.newString(login);
} else {
return runtime.getNil();
}
} catch (Exception e) {
// fall back on env entry for USER
return runtime.newString(System.getProperty("user.name"));
}
}
@JRubyMethod(name = "endpwent", module = true)
public static IRubyObject endpwent(IRubyObject recv) {
Ruby runtime = recv.getRuntime();
try {
runtime.getPosix().endpwent();
} catch (Exception e) {
if (runtime.getDebug().isTrue()) {
runtime.getWarnings().warn(ID.NOT_IMPLEMENTED, "Etc.endpwent is not supported by JRuby on this platform", e);
}
}
return runtime.getNil();
}
@JRubyMethod(name = "setpwent", module = true)
public static IRubyObject setpwent(IRubyObject recv) {
Ruby runtime = recv.getRuntime();
try {
runtime.getPosix().setpwent();
} catch (Exception e) {
if (runtime.getDebug().isTrue()) {
runtime.getWarnings().warn(ID.NOT_IMPLEMENTED, "Etc.setpwent is not supported by JRuby on this platform", e);
}
}
return runtime.getNil();
}
@JRubyMethod(name = "getpwent", module = true)
public static IRubyObject getpwent(IRubyObject recv) {
Ruby runtime = recv.getRuntime();
try {
Passwd passwd = runtime.getPosix().getpwent();
if (passwd != null) {
return setupPasswd(runtime, passwd);
} else {
return runtime.getNil();
}
} catch (Exception e) {
if (runtime.getDebug().isTrue()) {
runtime.getWarnings().warn(ID.NOT_IMPLEMENTED, "Etc.getpwent is not supported by JRuby on this platform", e);
}
return runtime.getNil();
}
}
@JRubyMethod(name = "getgrnam", required=1, module = true)
public static IRubyObject getgrnam(IRubyObject recv, IRubyObject name) {
Ruby runtime = recv.getRuntime();
String nam = name.convertToString().toString();
try {
Group grp = runtime.getPosix().getgrnam(nam);
if(grp == null) {
if (Platform.IS_WINDOWS) { // MRI behavior
return runtime.getNil();
}
throw runtime.newArgumentError("can't find group for " + nam);
}
return setupGroup(runtime, grp);
} catch (Exception e) {
if (runtime.getDebug().isTrue()) {
runtime.getWarnings().warn(ID.NOT_IMPLEMENTED, "Etc.getgrnam is not supported by JRuby on this platform", e);
}
return runtime.getNil();
}
}
@JRubyMethod(name = "getgrgid", optional=1, module = true)
public static IRubyObject getgrgid(IRubyObject recv, IRubyObject[] args) {
Ruby runtime = recv.getRuntime();
POSIX posix = runtime.getPosix();
try {
int gid = args.length == 0 ? posix.getgid() : RubyNumeric.fix2int(args[0]);
Group gr = posix.getgrgid(gid);
if(gr == null) {
if (Platform.IS_WINDOWS) { // MRI behavior
return runtime.getNil();
}
throw runtime.newArgumentError("can't find group for " + gid);
}
return setupGroup(runtime, gr);
} catch (Exception e) {
if (runtime.getDebug().isTrue()) {
runtime.getWarnings().warn(ID.NOT_IMPLEMENTED, "Etc.gegrgid is not supported by JRuby on this platform", e);
}
return runtime.getNil();
}
}
@JRubyMethod(name = "endgrent", module = true)
public static IRubyObject endgrent(IRubyObject recv) {
Ruby runtime = recv.getRuntime();
try {
runtime.getPosix().endgrent();
} catch (Exception e) {
if (runtime.getDebug().isTrue()) {
runtime.getWarnings().warn(ID.NOT_IMPLEMENTED, "Etc.engrent is not supported by JRuby on this platform", e);
}
}
return runtime.getNil();
}
@JRubyMethod(name = "setgrent", module = true)
public static IRubyObject setgrent(IRubyObject recv) {
Ruby runtime = recv.getRuntime();
try {
runtime.getPosix().setgrent();
} catch (Exception e) {
if (runtime.getDebug().isTrue()) {
runtime.getWarnings().warn(ID.NOT_IMPLEMENTED, "Etc.setgrent is not supported by JRuby on this platform", e);
}
}
return runtime.getNil();
}
@JRubyMethod(name = "group", module = true, frame=true)
public static IRubyObject group(IRubyObject recv, Block block) {
Ruby runtime = recv.getRuntime();
POSIX posix = runtime.getPosix();
try {
// try to read grent to fail fast
posix.getgrent();
if(block.isGiven()) {
ThreadContext context = runtime.getCurrentContext();
posix.setgrent();
Group gr;
while((gr = posix.getgrent()) != null) {
block.yield(context, setupGroup(runtime, gr));
}
posix.endgrent();
}
Group gr = posix.getgrent();
if (gr != null) {
return setupGroup(runtime, gr);
} else {
return runtime.getNil();
}
} catch (Exception e) {
if (runtime.getDebug().isTrue()) {
runtime.getWarnings().warn(ID.NOT_IMPLEMENTED, "Etc.group is not supported by JRuby on this platform", e);
}
return runtime.getNil();
}
}
@JRubyMethod(name = "getgrent", module = true)
public static IRubyObject getgrent(IRubyObject recv) {
Ruby runtime = recv.getRuntime();
try {
Group gr = runtime.getPosix().getgrent();
if (gr != null) {
return setupGroup(recv.getRuntime(), gr);
} else {
return runtime.getNil();
}
} catch (Exception e) {
if (runtime.getDebug().isTrue()) {
runtime.getWarnings().warn(ID.NOT_IMPLEMENTED, "Etc.getgrent is not supported by JRuby on this platform", e);
}
return runtime.getNil();
}
}
}