2 // Getdown - application installer, patcher and launcher
3 // Copyright (C) 2004-2018 Getdown authors
4 // https://github.com/threerings/getdown/blob/master/LICENSE
6 package com.threerings.getdown.data;
9 import java.lang.reflect.Method;
10 import java.net.MalformedURLException;
11 import java.net.Proxy;
13 import java.net.URLClassLoader;
14 import java.net.URLConnection;
15 import java.net.URLEncoder;
16 import java.nio.channels.FileChannel;
17 import java.nio.channels.FileLock;
18 import java.nio.channels.OverlappingFileLockException;
19 import java.security.*;
20 import java.security.cert.Certificate;
22 import java.util.concurrent.*;
23 import java.util.regex.Matcher;
24 import java.util.regex.Pattern;
25 import java.util.zip.GZIPInputStream;
26 import com.sun.management.OperatingSystemMXBean;
27 import java.lang.management.ManagementFactory;
29 import jalview.bin.MemorySetting;
31 import com.threerings.getdown.util.*;
32 // avoid ambiguity with java.util.Base64 which we can't use as it's 1.8+
33 import com.threerings.getdown.util.Base64;
35 import com.threerings.getdown.data.EnvConfig;
36 import com.threerings.getdown.data.EnvConfig.Note;
38 import static com.threerings.getdown.Log.log;
39 import static java.nio.charset.StandardCharsets.UTF_8;
42 * Parses and provide access to the information contained in the <code>getdown.txt</code>
45 public class Application
47 /** The name of our configuration file. */
48 public static final String CONFIG_FILE = "getdown.txt";
50 /** The name of our target version file. */
51 public static final String VERSION_FILE = "version.txt";
53 /** System properties that are prefixed with this string will be passed through to our
54 * application (minus this prefix). */
55 public static final String PROP_PASSTHROUGH_PREFIX = "app.";
57 /** Suffix used for control file signatures. */
58 public static final String SIGNATURE_SUFFIX = ".sig";
60 /** A special classname that means 'use -jar code.jar' instead of a classname. */
61 public static final String MANIFEST_CLASS = "manifest";
63 /** Used to communicate information about the UI displayed when updating the application. */
64 public static final class UpdateInterface
67 * The major steps involved in updating, along with some arbitrary percentages
68 * assigned to them, to mark global progress.
73 //VERIFY_METADATA(15, 65, 95),
74 VERIFY_METADATA(15, 45, 90),
77 //VERIFY_RESOURCES(70, 97),
78 VERIFY_RESOURCES(30, 60),
79 //REDOWNLOAD_RESOURCES(90),
80 REDOWNLOAD_RESOURCES(70),
86 /** What is the final percent value for this step? */
87 public final List<Integer> defaultPercents;
89 /** Enum constructor. */
90 Step (int... percents)
92 this.defaultPercents = intsToList(percents);
96 /** The human readable name of this application. */
97 public final String name;
99 /** A background color, just in case. */
100 public final int background;
102 /** Background image specifiers for `RotatingBackgrounds`. */
103 public final List<String> rotatingBackgrounds;
105 /** The error background image for `RotatingBackgrounds`. */
106 public final String errorBackground;
108 /** The paths (relative to the appdir) of images for the window icon. */
109 public final List<String> iconImages;
111 /** The path (relative to the appdir) to a single background image to appear first. */
112 public final String instantBackgroundImage;
114 /** The path (relative to the appdir) to a single background image. */
115 public final String backgroundImage;
117 /** The path (relative to the appdir) to the progress bar image. */
118 public final String progressImage;
120 /** The dimensions of the progress bar. */
121 public final Rectangle progress;
123 /** The color of the progress text. */
124 public final int progressText;
126 /** The color of the progress bar. */
127 public final int progressBar;
129 /** The dimensions of the status display. */
130 public final Rectangle status;
132 /** The color of the status text. */
133 public final int statusText;
135 /** The color of the text shadow. */
136 public final int textShadow;
138 /** Where to point the user for help with install errors. */
139 public final String installError;
141 /** The dimensions of the patch notes button. */
142 public final Rectangle patchNotes;
144 /** The patch notes URL. */
145 public final String patchNotesUrl;
147 /** Whether window decorations are hidden for the UI. */
148 public final boolean hideDecorations;
150 /** Whether progress text should be hidden or not. */
151 public final boolean hideProgressText;
153 /** Whether the splash screen should retain focus. */
154 public final boolean progressSync;
156 /** Whether the splash screen should retain focus. */
157 public final boolean keepOnTop;
159 /** Whether to display the appbase. */
160 public final boolean displayAppbase;
162 /** Whether to display the version. */
163 public final boolean displayVersion;
165 /** The minimum number of seconds to display the GUI. This is to prevent the GUI from
166 * flashing up on the screen and immediately disappearing, which can be confusing to the
168 public final int minShowSeconds;
170 /** The global percentages for each step. A step may have more than one, and
171 * the lowest reasonable one is used if a step is revisited. */
172 public final Map<Step, List<Integer>> stepPercentages;
174 /** Generates a string representation of this instance. */
176 public String toString ()
178 return "[name=" + name + ", bg=" + background + ", bg=" + backgroundImage + ", instant_bg=" + instantBackgroundImage +
179 ", pi=" + progressImage + ", prect=" + progress + ", pt=" + progressText +
180 ", pb=" + progressBar + ", srect=" + status + ", st=" + statusText +
181 ", shadow=" + textShadow + ", err=" + installError + ", nrect=" + patchNotes +
182 ", notes=" + patchNotesUrl + ", stepPercentages=" + stepPercentages +
183 ", hideProgressText=" + hideProgressText + ", keepOnTop=" + keepOnTop + ", progressSync=" + progressSync + ", minShow=" + minShowSeconds +
184 ", displayAppbase=" + displayAppbase + ", displayVersion=" + displayVersion + "]";
187 public UpdateInterface (Config config)
189 this.name = config.getString("ui.name");
190 this.progress = config.getRect("ui.progress", new Rectangle(5, 5, 300, 15));
191 this.progressText = config.getColor("ui.progress_text", Color.BLACK);
192 this.hideProgressText = config.getBoolean("ui.hide_progress_text");
193 this.progressSync = config.getBoolean("ui.progress_sync");
194 this.keepOnTop = config.getBoolean("ui.keep_on_top");
195 this.displayAppbase = config.getBoolean("ui.display_appbase");
196 this.displayVersion = config.getBoolean("ui.display_version");
197 this.minShowSeconds = config.getInt("ui.min_show_seconds", 5);
198 this.progressBar = config.getColor("ui.progress_bar", 0x6699CC);
199 this.status = config.getRect("ui.status", new Rectangle(5, 25, 500, 100));
200 this.statusText = config.getColor("ui.status_text", Color.BLACK);
201 this.textShadow = config.getColor("ui.text_shadow", Color.CLEAR);
202 this.hideDecorations = config.getBoolean("ui.hide_decorations");
203 this.backgroundImage = config.getString("ui.background_image");
204 this.instantBackgroundImage = config.getString("ui.instant_background_image");
205 // default to black or white bg color, depending on the brightness of the progressText
206 int defaultBackground = (0.5f < Color.brightness(this.progressText)) ?
207 Color.BLACK : Color.WHITE;
208 this.background = config.getColor("ui.background", defaultBackground);
209 this.progressImage = config.getString("ui.progress_image");
210 this.rotatingBackgrounds = stringsToList(
211 config.getMultiValue("ui.rotating_background"));
212 this.iconImages = stringsToList(config.getMultiValue("ui.icon"));
213 this.errorBackground = config.getString("ui.error_background");
215 // On an installation error, where do we point the user.
216 String installError = config.getUrl("ui.install_error", null);
217 this.installError = (installError == null) ?
218 "m.default_install_error" : MessageUtil.taint(installError);
220 // the patch notes bits
221 this.patchNotes = config.getRect("ui.patch_notes", new Rectangle(5, 50, 112, 26));
222 this.patchNotesUrl = config.getUrl("ui.patch_notes_url", null);
224 // step progress percentage (defaults and then customized values)
225 EnumMap<Step, List<Integer>> stepPercentages = new EnumMap<>(Step.class);
226 for (Step step : Step.values()) {
227 stepPercentages.put(step, step.defaultPercents);
229 for (UpdateInterface.Step step : UpdateInterface.Step.values()) {
230 String spec = config.getString("ui.percents." + step.name());
233 stepPercentages.put(step, intsToList(StringUtil.parseIntArray(spec)));
234 } catch (Exception e) {
235 log.warning("Failed to parse percentages for " + step + ": " + spec);
239 this.stepPercentages = Collections.unmodifiableMap(stepPercentages);
244 * Used by {@link #verifyMetadata} to communicate status in circumstances where it needs to
245 * take network actions.
247 public static interface StatusDisplay
249 /** Requests that the specified status message be displayed. */
250 public void updateStatus (String message);
254 * Contains metadata for an auxiliary resource group.
256 public static class AuxGroup {
257 public final String name;
258 public final List<Resource> codes;
259 public final List<Resource> rsrcs;
261 public AuxGroup (String name, List<Resource> codes, List<Resource> rsrcs) {
263 this.codes = Collections.unmodifiableList(codes);
264 this.rsrcs = Collections.unmodifiableList(rsrcs);
268 /** The proxy that should be used to do HTTP downloads. This must be configured prior to using
269 * the application instance. Yes this is a public mutable field, no I'm not going to create a
270 * getter and setter just to pretend like that's not the case. */
271 public Proxy proxy = Proxy.NO_PROXY;
274 * Creates an application instance which records the location of the <code>getdown.txt</code>
275 * configuration file from the supplied application directory.
278 public Application (EnvConfig envc) {
280 _config = getLocalPath(envc.appDir, CONFIG_FILE);
284 * Returns the configured application directory.
286 public File getAppDir () {
291 * Returns whether the application should cache code resources prior to launching the
294 public boolean useCodeCache ()
296 return _useCodeCache;
300 * Returns the number of days a cached code resource is allowed to stay unused before it
301 * becomes eligible for deletion.
303 public int getCodeCacheRetentionDays ()
305 return _codeCacheRetentionDays;
309 * Returns the configured maximum concurrent downloads. Used to cap simultaneous downloads of
310 * app files from its hosting server.
312 public int maxConcurrentDownloads () {
313 return _maxConcDownloads;
317 * Returns a resource that refers to the application configuration file itself.
319 public Resource getConfigResource ()
322 return createResource(CONFIG_FILE, Resource.NORMAL);
323 } catch (Exception e) {
324 throw new RuntimeException("Invalid appbase '" + _vappbase + "'.", e);
329 * Returns a list of the code {@link Resource} objects used by this application.
331 public List<Resource> getCodeResources ()
337 * Returns a list of the non-code {@link Resource} objects used by this application.
339 public List<Resource> getResources ()
345 * Returns the digest of the given {@code resource}.
347 public String getDigest (Resource resource)
349 return _digest.getDigest(resource);
353 * Returns a list of all the active {@link Resource} objects used by this application (code and
356 public List<Resource> getAllActiveResources ()
358 List<Resource> allResources = new ArrayList<>();
359 allResources.addAll(getActiveCodeResources());
360 allResources.addAll(getActiveResources());
365 * Returns the auxiliary resource group with the specified name, or null.
367 public AuxGroup getAuxGroup (String name)
369 return _auxgroups.get(name);
373 * Returns the set of all auxiliary resource groups defined by the application. An auxiliary
374 * resource group is a collection of resource files that are not downloaded unless a group
375 * token file is present in the application directory.
377 public Iterable<AuxGroup> getAuxGroups ()
379 return _auxgroups.values();
383 * Returns true if the specified auxgroup has been "activated", false if not. Non-activated
384 * groups should be ignored, activated groups should be downloaded and patched along with the
387 public boolean isAuxGroupActive (String auxgroup)
389 Boolean active = _auxactive.get(auxgroup);
390 if (active == null) {
391 // TODO: compare the contents with the MD5 hash of the auxgroup name and the client's
393 active = getLocalPath(auxgroup + ".dat").exists();
394 _auxactive.put(auxgroup, active);
400 * Returns all main code resources and all code resources from active auxiliary resource groups.
402 public List<Resource> getActiveCodeResources ()
404 ArrayList<Resource> codes = new ArrayList<>();
405 codes.addAll(getCodeResources());
406 for (AuxGroup aux : getAuxGroups()) {
407 if (isAuxGroupActive(aux.name)) {
408 codes.addAll(aux.codes);
415 * Returns all resources indicated to contain native library files (.dll, .so, etc.).
417 public List<Resource> getNativeResources ()
419 List<Resource> natives = new ArrayList<>();
420 for (Resource resource: _resources) {
421 if (resource.isNative()) {
422 natives.add(resource);
429 * Returns all non-code resources and all resources from active auxiliary resource groups.
431 public List<Resource> getActiveResources ()
433 ArrayList<Resource> rsrcs = new ArrayList<>();
434 rsrcs.addAll(getResources());
435 for (AuxGroup aux : getAuxGroups()) {
436 if (isAuxGroupActive(aux.name)) {
437 rsrcs.addAll(aux.rsrcs);
444 * Returns a resource that can be used to download a patch file that will bring this
445 * application from its current version to the target version.
447 * @param auxgroup the auxiliary resource group for which a patch resource is desired or null
448 * for the main application patch resource.
450 public Resource getPatchResource (String auxgroup)
452 if (_targetVersion <= _version) {
453 log.warning("Requested patch resource for up-to-date or non-versioned application",
454 "cvers", _version, "tvers", _targetVersion);
458 String infix = (auxgroup == null) ? "" : ("-" + auxgroup);
459 String pfile = "patch" + infix + _version + ".dat";
461 URL remote = new URL(createVAppBase(_targetVersion), encodePath(pfile));
462 return new Resource(pfile, remote, getLocalPath(pfile), Resource.NORMAL);
463 } catch (Exception e) {
464 log.warning("Failed to create patch resource path",
465 "pfile", pfile, "appbase", _appbase, "tvers", _targetVersion, "error", e);
471 * Returns a resource for a zip file containing a Java VM that can be downloaded to use in
472 * place of the installed VM (in the case where the VM that launched Getdown does not meet the
473 * application's version requirements) or null if no VM is available for this platform.
475 public Resource getJavaVMResource ()
477 if (StringUtil.isBlank(_javaLocation)) {
481 String extension = (_javaLocation.endsWith(".tgz"))?".tgz":".jar";
482 String vmfile = LaunchUtil.LOCAL_JAVA_DIR + extension;
483 log.info("vmfile is '"+vmfile+"'");
484 System.out.println("vmfile is '"+vmfile+"'");
486 URL remote = new URL(createVAppBase(_targetVersion), encodePath(_javaLocation));
487 log.info("Attempting to fetch jvm at "+remote.toString());
488 System.out.println("Attempting to fetch jvm at "+remote.toString());
489 return new Resource(vmfile, remote, getLocalPath(vmfile),
490 EnumSet.of(Resource.Attr.UNPACK, Resource.Attr.CLEAN));
491 } catch (Exception e) {
492 log.warning("Failed to create VM resource", "vmfile", vmfile, "appbase", _appbase,
493 "tvers", _targetVersion, "javaloc", _javaLocation, "error", e);
494 System.out.println("Failed to create VM resource: vmfile="+vmfile+", appbase="+_appbase+
495 ", tvers="+_targetVersion+", javaloc="+_javaLocation+", error="+e);
501 * Returns a resource that can be used to download an archive containing all files belonging to
504 public Resource getFullResource ()
506 String file = "full";
508 URL remote = new URL(createVAppBase(_targetVersion), encodePath(file));
509 return new Resource(file, remote, getLocalPath(file), Resource.NORMAL);
510 } catch (Exception e) {
511 log.warning("Failed to create full resource path",
512 "file", file, "appbase", _appbase, "tvers", _targetVersion, "error", e);
518 * Returns the URL to use to report an initial download event. Returns null if no tracking
519 * start URL was configured for this application.
521 * @param event the event to be reported: start, jvm_start, jvm_complete, complete.
523 public URL getTrackingURL (String event)
526 String suffix = _trackingURLSuffix == null ? "" : _trackingURLSuffix;
527 String ga = getGATrackingCode();
528 return _trackingURL == null ? null :
529 HostWhitelist.verify(new URL(_trackingURL + encodePath(event + suffix + ga)));
530 } catch (MalformedURLException mue) {
531 log.warning("Invalid tracking URL", "path", _trackingURL, "event", event, "error", mue);
537 * Returns the URL to request to report that we have reached the specified percentage of our
538 * initial download. Returns null if no tracking request was configured for the specified
541 public URL getTrackingProgressURL (int percent)
543 if (_trackingPcts == null || !_trackingPcts.contains(percent)) {
546 return getTrackingURL("pct" + percent);
550 * Returns the name of our tracking cookie or null if it was not set.
552 public String getTrackingCookieName ()
554 return _trackingCookieName;
558 * Returns the name of our tracking cookie system property or null if it was not set.
560 public String getTrackingCookieProperty ()
562 return _trackingCookieProperty;
566 * Instructs the application to parse its {@code getdown.txt} configuration and prepare itself
567 * for operation. The application base URL will be parsed first so that if there are errors
568 * discovered later, the caller can use the application base to download a new {@code
569 * getdown.txt} file and try again.
571 * @return a {@code Config} instance that contains information from the config file.
573 * @exception IOException thrown if there is an error reading the file or an error encountered
574 * during its parsing.
576 public Config init (boolean checkPlatform)
579 Config config = null;
580 File cfgfile = _config;
581 Config.ParseOpts opts = Config.createOpts(checkPlatform);
583 // if we have a configuration file, read the data from it
584 if (cfgfile.exists()) {
585 config = Config.parseConfig(_config, opts);
587 // otherwise, try reading data from our backup config file; thanks to funny windows
588 // bullshit, we have to do this backup file fiddling in case we got screwed while
589 // updating getdown.txt during normal operation
590 else if ((cfgfile = getLocalPath(CONFIG_FILE + "_old")).exists()) {
591 config = Config.parseConfig(cfgfile, opts);
593 // otherwise, issue a warning that we found no getdown file
595 log.info("Found no getdown.txt file", "appdir", getAppDir());
597 } catch (Exception e) {
598 log.warning("Failure reading config file", "file", _config, e);
601 // see if there's an override config from locator file
602 Config locatorConfig = createLocatorConfig(opts);
604 // merge the locator file config into config (or replace config with)
605 if (locatorConfig != null) {
606 if (config == null || locatorConfig.getBoolean(LOCATOR_FILE_EXTENSION+"_replace")) {
607 config = locatorConfig;
609 config.mergeConfig(locatorConfig, locatorConfig.getBoolean(LOCATOR_FILE_EXTENSION+"_merge"));
613 // if we failed to read our config file, check for an appbase specified via a system
614 // property; we can use that to bootstrap ourselves back into operation
615 if (config == null) {
616 String appbase = _envc.appBase;
617 log.info("Using 'appbase' from bootstrap config", "appbase", appbase);
618 Map<String, Object> cdata = new HashMap<>();
619 cdata.put("appbase", appbase);
620 config = new Config(cdata);
623 // first determine our application base, this way if anything goes wrong later in the
624 // process, our caller can use the appbase to download a new configuration file
625 _appbase = config.getString("appbase");
627 // see if locatorConfig override
628 if (locatorConfig != null && !StringUtil.isBlank(locatorConfig.getString("appbase"))) {
629 _appbase = locatorConfig.getString("appbase");
632 if (_appbase == null) {
633 throw new RuntimeException("m.missing_appbase");
636 // check if we're overriding the domain in the appbase
637 _appbase = SysProps.overrideAppbase(_appbase);
639 // make sure there's a trailing slash
640 if (!_appbase.endsWith("/")) {
641 _appbase = _appbase + "/";
644 // extract our version information
645 _version = config.getLong("version", -1L);
647 // if we are a versioned deployment, create a versioned appbase
649 _vappbase = createVAppBase(_version);
650 } catch (MalformedURLException mue) {
651 String err = MessageUtil.tcompose("m.invalid_appbase", _appbase);
652 throw (IOException) new IOException(err).initCause(mue);
655 // check for a latest config URL
656 String latest = config.getString("latest");
657 if (latest != null) {
658 if (latest.startsWith(_appbase)) {
659 latest = _appbase + latest.substring(_appbase.length());
661 latest = SysProps.replaceDomain(latest);
664 _latest = HostWhitelist.verify(new URL(latest));
665 } catch (MalformedURLException mue) {
666 log.warning("Invalid URL for latest attribute.", mue);
670 String appPrefix = _envc.appId == null ? "" : (_envc.appId + ".");
672 // determine our application class name (use app-specific class _if_ one is provided)
673 _class = config.getString("class");
674 if (appPrefix.length() > 0) {
675 _class = config.getString(appPrefix + "class", _class);
677 if (_class == null) {
678 throw new IOException("m.missing_class");
681 // determine whether we want strict comments
682 _strictComments = config.getBoolean("strict_comments");
684 // check to see if we're using a custom java.version property and regex
685 _javaVersionProp = config.getString("java_version_prop", _javaVersionProp);
686 _javaVersionRegex = config.getString("java_version_regex", _javaVersionRegex);
688 // check to see if we require a particular JVM version and have a supplied JVM
689 _javaMinVersion = config.getLong("java_version", _javaMinVersion);
690 // we support java_min_version as an alias of java_version; it better expresses the check
691 // that's going on and better mirrors java_max_version
692 _javaMinVersion = config.getLong("java_min_version", _javaMinVersion);
693 // check to see if we require a particular max JVM version and have a supplied JVM
694 _javaMaxVersion = config.getLong("java_max_version", _javaMaxVersion);
695 // check to see if we require a particular JVM version and have a supplied JVM
696 _javaExactVersionRequired = config.getBoolean("java_exact_version_required");
698 // this is a little weird, but when we're run from the digester, we see a String[] which
699 // contains java locations for all platforms which we can't grok, but the digester doesn't
700 // need to know about that; when we're run in a real application there will be only one!
701 Object javaloc = config.getRaw("java_location");
702 if (javaloc instanceof String) {
703 _javaLocation = (String)javaloc;
706 // determine whether we have any tracking configuration
707 _trackingURL = config.getString("tracking_url");
709 // check for tracking progress percent configuration
710 String trackPcts = config.getString("tracking_percents");
711 if (!StringUtil.isBlank(trackPcts)) {
712 _trackingPcts = new HashSet<>();
713 for (int pct : StringUtil.parseIntArray(trackPcts)) {
714 _trackingPcts.add(pct);
716 } else if (!StringUtil.isBlank(_trackingURL)) {
717 _trackingPcts = new HashSet<>();
718 _trackingPcts.add(50);
721 // Check for tracking cookie configuration
722 _trackingCookieName = config.getString("tracking_cookie_name");
723 _trackingCookieProperty = config.getString("tracking_cookie_property");
725 // Some app may need an extra suffix added to the tracking URL
726 _trackingURLSuffix = config.getString("tracking_url_suffix");
728 // Some app may need to generate google analytics code
729 _trackingGAHash = config.getString("tracking_ga_hash");
731 // clear our arrays as we may be reinitializing
739 // parse our code resources
740 if (config.getMultiValue("code") == null &&
741 config.getMultiValue("ucode") == null) {
742 throw new IOException("m.missing_code");
744 parseResources(config, "code", Resource.NORMAL, _codes);
745 parseResources(config, "ucode", Resource.UNPACK, _codes);
747 // parse our non-code resources
748 parseResources(config, "resource", Resource.NORMAL, _resources);
749 parseResources(config, "uresource", Resource.UNPACK, _resources);
750 parseResources(config, "xresource", Resource.EXEC, _resources);
751 parseResources(config, "presource", Resource.PRELOAD, _resources);
752 parseResources(config, "nresource", Resource.NATIVE, _resources);
754 // parse our auxiliary resource groups
755 for (String auxgroup : config.getList("auxgroups")) {
756 ArrayList<Resource> codes = new ArrayList<>();
757 parseResources(config, auxgroup + ".code", Resource.NORMAL, codes);
758 parseResources(config, auxgroup + ".ucode", Resource.UNPACK, codes);
759 ArrayList<Resource> rsrcs = new ArrayList<>();
760 parseResources(config, auxgroup + ".resource", Resource.NORMAL, rsrcs);
761 parseResources(config, auxgroup + ".xresource", Resource.EXEC, rsrcs);
762 parseResources(config, auxgroup + ".uresource", Resource.UNPACK, rsrcs);
763 parseResources(config, auxgroup + ".presource", Resource.PRELOAD, rsrcs);
764 parseResources(config, auxgroup + ".nresource", Resource.NATIVE, rsrcs);
765 _auxgroups.put(auxgroup, new AuxGroup(auxgroup, codes, rsrcs));
768 // transfer our JVM arguments (we include both "global" args and app_id-prefixed args)
769 String[] jvmargs = config.getMultiValue("jvmarg");
770 addAll(jvmargs, _jvmargs);
771 if (appPrefix.length() > 0) {
772 jvmargs = config.getMultiValue(appPrefix + "jvmarg");
773 addAll(jvmargs, _jvmargs);
776 // see if a percentage of physical memory option exists
777 int jvmmempc = config.getInt("jvmmempc", -1);
778 // app_id prefixed setting overrides
779 if (appPrefix.length() > 0) {
780 jvmmempc = config.getInt(appPrefix + "jvmmempc", jvmmempc);
782 if (0 <= jvmmempc && jvmmempc <= 100) {
784 long maxMemLong = -1;
788 maxMemLong = MemorySetting.memPercent(jvmmempc);
789 } catch (Exception e)
792 } catch (Throwable t)
800 String[] maxMemHeapArg = new String[]{"-Xmx"+Long.toString(maxMemLong)};
801 // remove other max heap size arg
802 ARG: for (int i = 0; i < _jvmargs.size(); i++) {
803 if (_jvmargs.get(i) instanceof java.lang.String && _jvmargs.get(i).startsWith("-Xmx")) {
807 addAll(maxMemHeapArg, _jvmargs);
811 } else if (jvmmempc != -1) {
812 System.out.println("'jvmmempc' value must be in range 0 to 100 (read as '"+Integer.toString(jvmmempc)+"')");
815 // get the set of optimum JVM arguments
816 _optimumJvmArgs = config.getMultiValue("optimum_jvmarg");
818 // transfer our application arguments
819 String[] appargs = config.getMultiValue(appPrefix + "apparg");
820 addAll(appargs, _appargs);
822 // add the launch specific application arguments
823 _appargs.addAll(_envc.appArgs);
825 // look for custom arguments
826 fillAssignmentListFromPairs("extra.txt", _txtJvmArgs);
828 // determine whether we want to allow offline operation (defaults to false)
829 _allowOffline = config.getBoolean("allow_offline");
831 // look for a debug.txt file which causes us to run in java.exe on Windows so that we can
832 // obtain a thread dump of the running JVM
833 _windebug = getLocalPath("debug.txt").exists();
835 // whether to cache code resources and launch from cache
836 _useCodeCache = config.getBoolean("use_code_cache");
837 _codeCacheRetentionDays = config.getInt("code_cache_retention_days", 7);
839 // maximum simultaneous downloads
840 _maxConcDownloads = Math.max(1, config.getInt("max_concurrent_downloads",
841 SysProps.threadPoolSize()));
843 // extract some info used to configure our child process on macOS
844 _dockName = config.getString("ui.name");
845 _dockIconPath = config.getString("ui.mac_dock_icon", "../desktop.icns");
851 * Adds strings of the form pair0=pair1 to collector for each pair parsed out of pairLocation.
853 protected void fillAssignmentListFromPairs (String pairLocation, List<String> collector)
855 File pairFile = getLocalPath(pairLocation);
856 if (pairFile.exists()) {
858 List<String[]> args = Config.parsePairs(pairFile, Config.createOpts(false));
859 for (String[] pair : args) {
860 if (pair[1].length() == 0) {
861 collector.add(pair[0]);
863 collector.add(pair[0] + "=" + pair[1]);
866 } catch (Throwable t) {
867 log.warning("Failed to parse '" + pairFile + "': " + t);
873 * Returns a URL from which the specified path can be fetched. Our application base URL is
874 * properly versioned and combined with the supplied path.
876 public URL getRemoteURL (String path)
877 throws MalformedURLException
879 return new URL(_vappbase, encodePath(path));
883 * Returns the local path to the specified resource.
885 public File getLocalPath (String path)
887 return getLocalPath(getAppDir(), path);
891 * Returns true if we either have no version requirement, are running in a JVM that meets our
892 * version requirements or have what appears to be a version of the JVM that meets our
895 public boolean haveValidJavaVersion ()
897 // if we're doing no version checking, then yay!
898 if (_javaMinVersion == 0 && _javaMaxVersion == 0) return true;
901 // parse the version out of the java.version (or custom) system property
902 long version = SysProps.parseJavaVersion(_javaVersionProp, _javaVersionRegex);
904 log.info("Checking Java version", "current", version,
905 "wantMin", _javaMinVersion, "wantMax", _javaMaxVersion);
907 // if we have an unpacked VM, check the 'release' file for its version
908 Resource vmjar = getJavaVMResource();
909 if (vmjar != null && vmjar.isMarkedValid()) {
910 File vmdir = new File(getAppDir(), LaunchUtil.LOCAL_JAVA_DIR);
911 File relfile = new File(vmdir, "release");
912 if (!relfile.exists()) {
913 log.warning("Unpacked JVM missing 'release' file. Assuming valid version.");
917 long vmvers = VersionUtil.readReleaseVersion(relfile, _javaVersionRegex);
919 log.warning("Unable to read version from 'release' file. Assuming valid.");
924 log.info("Checking version of unpacked JVM [vers=" + version + "].");
927 if (_javaExactVersionRequired) {
928 if (version == _javaMinVersion) return true;
930 log.warning("An exact Java VM version is required.", "current", version,
931 "required", _javaMinVersion);
936 boolean minVersionOK = (_javaMinVersion == 0) || (version >= _javaMinVersion);
937 boolean maxVersionOK = (_javaMaxVersion == 0) || (version <= _javaMaxVersion);
938 return minVersionOK && maxVersionOK;
940 } catch (RuntimeException re) {
941 // if we can't parse the java version we're in weird land and should probably just try
942 // our luck with what we've got rather than try to download a new jvm
943 log.warning("Unable to parse VM version, hoping for the best",
944 "error", re, "needed", _javaMinVersion);
950 * Checks whether the app has a set of "optimum" JVM args that we wish to try first, detecting
951 * whether the launch is successful and, if necessary, trying again without the optimum
954 public boolean hasOptimumJvmArgs ()
956 return _optimumJvmArgs != null;
960 * Returns true if the app should attempt to run even if we have no Internet connection.
962 public boolean allowOffline ()
964 return _allowOffline;
968 * Attempts to redownload the <code>getdown.txt</code> file based on information parsed from a
969 * previous call to {@link #init}.
971 public void attemptRecovery (StatusDisplay status)
974 status.updateStatus("m.updating_metadata");
975 downloadConfigFile();
979 * Downloads and replaces the <code>getdown.txt</code> and <code>digest.txt</code> files with
980 * those for the target version of our application.
982 public void updateMetadata ()
986 // update our versioned application base with the target version
987 _vappbase = createVAppBase(_targetVersion);
988 } catch (MalformedURLException mue) {
989 String err = MessageUtil.tcompose("m.invalid_appbase", _appbase);
990 throw (IOException) new IOException(err).initCause(mue);
994 // now re-download our control files; we download the digest first so that if it fails,
995 // our config file will still reference the old version and re-running the updater will
996 // start the whole process over again
997 downloadDigestFiles();
998 downloadConfigFile();
1000 } catch (IOException ex) {
1001 // if we are allowing offline execution, we want to allow the application to run in its
1002 // current form rather than aborting the entire process; to do this, we delete the
1003 // version.txt file and "trick" Getdown into thinking that it just needs to validate
1004 // the application as is; next time the app runs when connected to the internet, it
1005 // will have to rediscover that it needs updating and reattempt to update itself
1006 if (_allowOffline) {
1007 log.warning("Failed to update digest files. Attempting offline operaton.", ex);
1008 if (!FileUtil.deleteHarder(getLocalPath(VERSION_FILE))) {
1009 log.warning("Deleting version.txt failed. This probably isn't going to work.");
1018 * Invokes the process associated with this application definition.
1020 * @param optimum whether or not to include the set of optimum arguments (as opposed to falling
1023 public Process createProcess (boolean optimum)
1026 ArrayList<String> args = new ArrayList<>();
1028 // reconstruct the path to the JVM
1029 args.add(LaunchUtil.getJVMPath(getAppDir(), _windebug || optimum));
1031 // check whether we're using -jar mode or -classpath mode
1032 boolean dashJarMode = MANIFEST_CLASS.equals(_class);
1034 // add the -classpath arguments if we're not in -jar mode
1035 ClassPath classPath = PathBuilder.buildClassPath(this);
1037 args.add("-classpath");
1038 args.add(classPath.asArgumentString());
1041 // we love our Mac users, so we do nice things to preserve our application identity
1042 if (LaunchUtil.isMacOS()) {
1043 args.add("-Xdock:icon=" + getLocalPath(_dockIconPath).getAbsolutePath());
1044 args.add("-Xdock:name=" + _dockName);
1047 // pass along our proxy settings
1049 if ((proxyHost = System.getProperty("http.proxyHost")) != null) {
1050 args.add("-Dhttp.proxyHost=" + proxyHost);
1051 args.add("-Dhttp.proxyPort=" + System.getProperty("http.proxyPort"));
1052 args.add("-Dhttps.proxyHost=" + proxyHost);
1053 args.add("-Dhttps.proxyPort=" + System.getProperty("http.proxyPort"));
1056 // add the marker indicating the app is running in getdown
1057 args.add("-D" + Properties.GETDOWN + "=true");
1059 // set the native library path if we have native resources
1060 // @TODO optional getdown.txt parameter to set addCurrentLibraryPath to true or false?
1061 ClassPath javaLibPath = PathBuilder.buildLibsPath(this, true);
1062 if (javaLibPath != null) {
1063 args.add("-Djava.library.path=" + javaLibPath.asArgumentString());
1066 // pass along any pass-through arguments
1067 for (Map.Entry<Object, Object> entry : System.getProperties().entrySet()) {
1068 String key = (String)entry.getKey();
1069 if (key.startsWith(PROP_PASSTHROUGH_PREFIX)) {
1070 key = key.substring(PROP_PASSTHROUGH_PREFIX.length());
1071 args.add("-D" + key + "=" + entry.getValue());
1075 // add the JVM arguments
1076 for (String string : _jvmargs) {
1077 args.add(processArg(string));
1080 // add the optimum arguments if requested and available
1081 if (optimum && _optimumJvmArgs != null) {
1082 for (String string : _optimumJvmArgs) {
1083 args.add(processArg(string));
1087 // add the arguments from extra.txt (after the optimum ones, in case they override them)
1088 for (String string : _txtJvmArgs) {
1089 args.add(processArg(string));
1092 // if we're in -jar mode add those arguments, otherwise add the app class name
1095 args.add(classPath.asArgumentString());
1100 // almost finally check the startup file arguments
1101 for (File f : _startupFiles) {
1102 _appargs.add(f.getAbsolutePath());
1103 break; // Only add one file to open
1106 // check if one arg with recognised extension
1107 if ( _appargs.size() == 1 && _appargs.get(0) != null ) {
1108 String filename = _appargs.get(0);
1110 int j = filename.lastIndexOf('.');
1112 ext = filename.substring(j+1);
1114 if (LOCATOR_FILE_EXTENSION.equals(ext.toLowerCase())) {
1115 // this file extension should have been dealt with in Getdown class
1117 _appargs.add(0, "-open");
1121 // finally add the application arguments
1122 for (String string : _appargs) {
1123 args.add(processArg(string));
1126 String[] envp = createEnvironment();
1127 String[] sargs = args.toArray(new String[args.size()]);
1128 log.info("Running " + StringUtil.join(sargs, "\n "));
1130 return Runtime.getRuntime().exec(sargs, envp, getAppDir());
1134 * If the application provided environment variables, combine those with the current
1135 * environment and return that in a style usable for {@link Runtime#exec(String, String[])}.
1136 * If the application didn't provide any environment variables, null is returned to just use
1137 * the existing environment.
1139 protected String[] createEnvironment ()
1141 List<String> envvar = new ArrayList<>();
1142 fillAssignmentListFromPairs("env.txt", envvar);
1143 if (envvar.isEmpty()) {
1144 log.info("Didn't find any custom environment variables, not setting any.");
1148 List<String> envAssignments = new ArrayList<>();
1149 for (String assignment : envvar) {
1150 envAssignments.add(processArg(assignment));
1152 for (Map.Entry<String, String> environmentEntry : System.getenv().entrySet()) {
1153 envAssignments.add(environmentEntry.getKey() + "=" + environmentEntry.getValue());
1155 String[] envp = envAssignments.toArray(new String[envAssignments.size()]);
1156 log.info("Environment " + StringUtil.join(envp, "\n "));
1161 * Runs this application directly in the current VM.
1163 public void invokeDirect () throws IOException
1165 ClassPath classPath = PathBuilder.buildClassPath(this);
1166 URL[] jarUrls = classPath.asUrls();
1168 // create custom class loader
1169 URLClassLoader loader = new URLClassLoader(jarUrls, ClassLoader.getSystemClassLoader()) {
1170 @Override protected PermissionCollection getPermissions (CodeSource code) {
1171 Permissions perms = new Permissions();
1172 perms.add(new AllPermission());
1176 Thread.currentThread().setContextClassLoader(loader);
1178 log.info("Configured URL class loader:");
1179 for (URL url : jarUrls) log.info(" " + url);
1181 // configure any system properties that we can
1182 for (String jvmarg : _jvmargs) {
1183 if (jvmarg.startsWith("-D")) {
1184 jvmarg = processArg(jvmarg.substring(2));
1185 int eqidx = jvmarg.indexOf("=");
1187 log.warning("Bogus system property: '" + jvmarg + "'?");
1189 System.setProperty(jvmarg.substring(0, eqidx), jvmarg.substring(eqidx+1));
1194 // pass along any pass-through arguments
1195 Map<String, String> passProps = new HashMap<>();
1196 for (Map.Entry<Object, Object> entry : System.getProperties().entrySet()) {
1197 String key = (String)entry.getKey();
1198 if (key.startsWith(PROP_PASSTHROUGH_PREFIX)) {
1199 key = key.substring(PROP_PASSTHROUGH_PREFIX.length());
1200 passProps.put(key, (String)entry.getValue());
1203 // we can't set these in the above loop lest we get a ConcurrentModificationException
1204 for (Map.Entry<String, String> entry : passProps.entrySet()) {
1205 System.setProperty(entry.getKey(), entry.getValue());
1208 // prepare our app arguments
1209 String[] args = new String[_appargs.size()];
1210 for (int ii = 0; ii < args.length; ii++) args[ii] = processArg(_appargs.get(ii));
1213 log.info("Loading " + _class);
1214 Class<?> appclass = loader.loadClass(_class);
1215 Method main = appclass.getMethod("main", EMPTY_STRING_ARRAY.getClass());
1216 log.info("Invoking main({" + StringUtil.join(args, ", ") + "})");
1217 main.invoke(null, new Object[] { args });
1218 } catch (Exception e) {
1219 log.warning("Failure invoking app main", e);
1223 /** Replaces the application directory and version in any argument. */
1224 protected String processArg (String arg)
1226 arg = arg.replace("%APPDIR%", getAppDir().getAbsolutePath());
1227 arg = arg.replace("%VERSION%", String.valueOf(_version));
1229 // if this argument contains %ENV.FOO% replace those with the associated values looked up
1230 // from the environment
1231 if (arg.contains(ENV_VAR_PREFIX)) {
1232 StringBuffer sb = new StringBuffer();
1233 Matcher matcher = ENV_VAR_PATTERN.matcher(arg);
1234 while (matcher.find()) {
1235 String varName = matcher.group(1), varValue = System.getenv(varName);
1236 String repValue = varValue == null ? "MISSING:"+varName : varValue;
1237 matcher.appendReplacement(sb, Matcher.quoteReplacement(repValue));
1239 matcher.appendTail(sb);
1240 arg = sb.toString();
1247 * Loads the <code>digest.txt</code> file and verifies the contents of both that file and the
1248 * <code>getdown.text</code> file. Then it loads the <code>version.txt</code> and decides
1249 * whether or not the application needs to be updated or whether we can proceed to verification
1252 * @return true if the application needs to be updated, false if it is up to date and can be
1253 * verified and executed.
1255 * @exception IOException thrown if we encounter an unrecoverable error while verifying the
1258 public boolean verifyMetadata (StatusDisplay status)
1261 log.info("Verifying application: " + _vappbase);
1262 log.info("Version: " + _version);
1263 log.info("Class: " + _class);
1265 // this will read in the contents of the digest file and validate itself
1267 _digest = new Digest(getAppDir(), _strictComments);
1268 } catch (IOException ioe) {
1269 log.info("Failed to load digest: " + ioe.getMessage() + ". Attempting recovery...");
1272 // if we have no version, then we are running in unversioned mode so we need to download
1273 // our digest.txt file on every invocation
1274 if (_version == -1) {
1275 // make a note of the old meta-digest, if this changes we need to revalidate all of our
1276 // resources as one or more of them have also changed
1277 String olddig = (_digest == null) ? "" : _digest.getMetaDigest();
1279 status.updateStatus("m.checking");
1280 downloadDigestFiles();
1281 _digest = new Digest(getAppDir(), _strictComments);
1282 if (!olddig.equals(_digest.getMetaDigest())) {
1283 log.info("Unversioned digest changed. Revalidating...");
1284 status.updateStatus("m.validating");
1285 clearValidationMarkers();
1287 } catch (IOException ioe) {
1288 log.warning("Failed to refresh non-versioned digest: " +
1289 ioe.getMessage() + ". Proceeding...");
1293 // regardless of whether we're versioned, if we failed to read the digest from disk, try to
1294 // redownload the digest file and give it another good college try; this time we allow
1295 // exceptions to propagate up to the caller as there is nothing else we can do
1296 if (_digest == null) {
1297 status.updateStatus("m.updating_metadata");
1298 downloadDigestFiles();
1299 _digest = new Digest(getAppDir(), _strictComments);
1302 // now verify the contents of our main config file
1303 Resource crsrc = getConfigResource();
1304 if (!_digest.validateResource(crsrc, null)) {
1305 status.updateStatus("m.updating_metadata");
1306 // attempt to redownload both of our metadata files; again we pass errors up to our
1307 // caller because there's nothing we can do to automatically recover
1308 downloadConfigFile();
1309 downloadDigestFiles();
1310 _digest = new Digest(getAppDir(), _strictComments);
1311 // revalidate everything if we end up downloading new metadata
1312 clearValidationMarkers();
1313 // if the new copy validates, reinitialize ourselves; otherwise report baffling hoseage
1314 if (_digest.validateResource(crsrc, null)) {
1317 log.warning(CONFIG_FILE + " failed to validate even after redownloading. " +
1318 "Blindly forging onward.");
1322 // start by assuming we are happy with our version
1323 _targetVersion = _version;
1325 // if we are a versioned application, read in the contents of the version.txt file
1326 // and/or check the latest config URL for a newer version
1327 if (_version != -1) {
1328 File vfile = getLocalPath(VERSION_FILE);
1329 long fileVersion = VersionUtil.readVersion(vfile);
1330 if (fileVersion != -1) {
1331 _targetVersion = fileVersion;
1334 if (_latest != null) {
1335 try (InputStream in = ConnectionUtil.open(proxy, _latest, 0, 0).getInputStream();
1336 InputStreamReader reader = new InputStreamReader(in, UTF_8);
1337 BufferedReader bin = new BufferedReader(reader)) {
1338 for (String[] pair : Config.parsePairs(bin, Config.createOpts(false))) {
1339 if (pair[0].equals("version")) {
1340 _targetVersion = Math.max(Long.parseLong(pair[1]), _targetVersion);
1341 if (fileVersion != -1 && _targetVersion > fileVersion) {
1342 // replace the file with the newest version
1343 try (FileOutputStream fos = new FileOutputStream(vfile);
1344 PrintStream out = new PrintStream(fos)) {
1345 out.println(_targetVersion);
1351 } catch (Exception e) {
1352 log.warning("Unable to retrieve version from latest config file.", e);
1357 // finally let the caller know if we need an update
1358 return _version != _targetVersion;
1362 * Verifies the code and media resources associated with this application. A list of resources
1363 * that do not exist or fail the verification process will be returned. If all resources are
1364 * ready to go, null will be returned and the application is considered ready to run.
1366 * @param obs a progress observer that will be notified of verification progress. NOTE: this
1367 * observer may be called from arbitrary threads, so if you update a UI based on calls to it,
1368 * you have to take care to get back to your UI thread.
1369 * @param alreadyValid if non-null a 1 element array that will have the number of "already
1370 * validated" resources filled in.
1371 * @param unpacked a set to populate with unpacked resources.
1372 * @param toInstall a list into which to add resources that need to be installed.
1373 * @param toDownload a list into which to add resources that need to be downloaded.
1375 public void verifyResources (
1376 ProgressObserver obs, int[] alreadyValid, Set<Resource> unpacked,
1377 Set<Resource> toInstall, Set<Resource> toDownload)
1378 throws InterruptedException
1380 // resources are verified on background threads supplied by the thread pool, and progress
1381 // is reported by posting runnable actions to the actions queue which is processed by the
1383 ExecutorService exec = Executors.newFixedThreadPool(SysProps.threadPoolSize());
1384 final BlockingQueue<Runnable> actions = new LinkedBlockingQueue<Runnable>();
1385 final int[] completed = new int[1];
1387 long start = System.currentTimeMillis();
1389 // obtain the sizes of the resources to validate
1390 List<Resource> rsrcs = getAllActiveResources();
1391 long[] sizes = new long[rsrcs.size()];
1393 for (int ii = 0; ii < sizes.length; ii++) {
1394 totalSize += sizes[ii] = rsrcs.get(ii).getLocal().length();
1396 final ProgressObserver fobs = obs;
1397 // as long as we forward aggregated progress updates to the UI thread, having multiple
1398 // threads update a progress aggregator is "mostly" thread-safe
1399 final ProgressAggregator pagg = new ProgressAggregator(new ProgressObserver() {
1400 public void progress (final int percent) {
1401 actions.add(new Runnable() {
1402 public void run () {
1403 fobs.progress(percent);
1409 final int[] fAlreadyValid = alreadyValid;
1410 final Set<Resource> toInstallAsync = new ConcurrentSkipListSet<>(toInstall);
1411 final Set<Resource> toDownloadAsync = new ConcurrentSkipListSet<>();
1412 final Set<Resource> unpackedAsync = new ConcurrentSkipListSet<>();
1414 for (int ii = 0; ii < sizes.length; ii++) {
1415 final Resource rsrc = rsrcs.get(ii);
1416 final int index = ii;
1417 exec.execute(new Runnable() {
1418 public void run () {
1419 verifyResource(rsrc, pagg.startElement(index), fAlreadyValid,
1420 unpackedAsync, toInstallAsync, toDownloadAsync);
1421 actions.add(new Runnable() {
1422 public void run () {
1430 while (completed[0] < rsrcs.size()) {
1431 // we should be getting progress completion updates WAY more often than one every
1432 // minute, so if things freeze up for 60 seconds, abandon ship
1433 Runnable action = actions.poll(60, TimeUnit.SECONDS);
1439 toInstall.addAll(toInstallAsync);
1440 toDownload.addAll(toDownloadAsync);
1441 unpacked.addAll(unpackedAsync);
1443 long complete = System.currentTimeMillis();
1444 log.info("Verified resources", "count", rsrcs.size(), "size", (totalSize/1024) + "k",
1445 "duration", (complete-start) + "ms");
1448 private void verifyResource (Resource rsrc, ProgressObserver obs, int[] alreadyValid,
1449 Set<Resource> unpacked,
1450 Set<Resource> toInstall, Set<Resource> toDownload) {
1451 if (rsrc.isMarkedValid()) {
1452 if (alreadyValid != null) {
1460 if (_digest.validateResource(rsrc, obs)) {
1461 // if the resource has a _new file, add it to to-install list
1462 if (rsrc.getLocalNew().exists()) {
1463 toInstall.add(rsrc);
1472 } catch (Exception e) {
1473 log.info("Failure verifying resource. Requesting redownload...",
1474 "rsrc", rsrc, "error", e);
1479 toDownload.add(rsrc);
1483 * Unpacks the resources that require it (we know that they're valid).
1485 * @param unpacked a set of resources to skip because they're already unpacked.
1487 public void unpackResources (ProgressObserver obs, Set<Resource> unpacked)
1488 throws InterruptedException
1490 List<Resource> rsrcs = getActiveResources();
1492 // remove resources that we don't want to unpack
1493 for (Iterator<Resource> it = rsrcs.iterator(); it.hasNext(); ) {
1494 Resource rsrc = it.next();
1495 if (!rsrc.shouldUnpack() || unpacked.contains(rsrc)) {
1500 // obtain the sizes of the resources to unpack
1501 long[] sizes = new long[rsrcs.size()];
1502 for (int ii = 0; ii < sizes.length; ii++) {
1503 sizes[ii] = rsrcs.get(ii).getLocal().length();
1506 ProgressAggregator pagg = new ProgressAggregator(obs, sizes);
1507 for (int ii = 0; ii < sizes.length; ii++) {
1508 Resource rsrc = rsrcs.get(ii);
1509 ProgressObserver pobs = pagg.startElement(ii);
1512 } catch (IOException ioe) {
1513 log.warning("Failure unpacking resource", "rsrc", rsrc, ioe);
1520 * Clears all validation marker files.
1522 public void clearValidationMarkers ()
1524 clearValidationMarkers(getAllActiveResources().iterator());
1528 * Returns the version number for the application. Should only be called after successful
1529 * return of verifyMetadata.
1531 public long getVersion ()
1537 * Creates a versioned application base URL for the specified version.
1539 protected URL createVAppBase (long version)
1540 throws MalformedURLException
1542 String url = version < 0 ? _appbase : _appbase.replace("%VERSION%", "" + version);
1543 return HostWhitelist.verify(new URL(url));
1547 * Clears all validation marker files for the resources in the supplied iterator.
1549 protected void clearValidationMarkers (Iterator<Resource> iter)
1551 while (iter.hasNext()) {
1552 iter.next().clearMarker();
1557 * Downloads a new copy of CONFIG_FILE.
1559 protected void downloadConfigFile ()
1562 downloadControlFile(CONFIG_FILE, 0);
1566 * @return true if gettingdown.lock was unlocked, already locked by this application or if
1567 * we're not locking at all.
1569 public synchronized boolean lockForUpdates ()
1571 if (_lock != null && _lock.isValid()) {
1575 _lockChannel = new RandomAccessFile(getLocalPath("gettingdown.lock"), "rw").getChannel();
1576 } catch (FileNotFoundException e) {
1577 log.warning("Unable to create lock file", "message", e.getMessage(), e);
1581 _lock = _lockChannel.tryLock();
1582 } catch (IOException e) {
1583 log.warning("Unable to create lock", "message", e.getMessage(), e);
1585 } catch (OverlappingFileLockException e) {
1586 log.warning("The lock is held elsewhere in this JVM", e);
1589 log.info("Able to lock for updates: " + (_lock != null));
1590 return _lock != null;
1594 * Release gettingdown.lock
1596 public synchronized void releaseLock ()
1598 if (_lock != null) {
1599 log.info("Releasing lock");
1602 } catch (IOException e) {
1603 log.warning("Unable to release lock", "message", e.getMessage(), e);
1606 _lockChannel.close();
1607 } catch (IOException e) {
1608 log.warning("Unable to close lock channel", "message", e.getMessage(), e);
1610 _lockChannel = null;
1616 * Downloads the digest files and validates their signature.
1617 * @throws IOException
1619 protected void downloadDigestFiles ()
1622 for (int version = 1; version <= Digest.VERSION; version++) {
1623 downloadControlFile(Digest.digestFile(version), version);
1628 * Downloads a new copy of the specified control file, optionally validating its signature.
1629 * If the download is successful, moves it over the old file on the filesystem.
1631 * <p> TODO: Switch to PKCS #7 or CMS.
1633 * @param sigVersion if {@code 0} no validation will be performed, if {@code > 0} then this
1634 * should indicate the version of the digest file being validated which indicates which
1635 * algorithm to use to verify the signature. See {@link Digest#VERSION}.
1637 protected void downloadControlFile (String path, int sigVersion)
1640 File target = downloadFile(path);
1642 if (sigVersion > 0) {
1643 if (_envc.certs.isEmpty()) {
1644 log.info("No signing certs, not verifying digest.txt", "path", path);
1647 File signatureFile = downloadFile(path + SIGNATURE_SUFFIX);
1648 byte[] signature = null;
1649 try (FileInputStream signatureStream = new FileInputStream(signatureFile)) {
1650 signature = StreamUtil.toByteArray(signatureStream);
1652 FileUtil.deleteHarder(signatureFile); // delete the file regardless
1655 byte[] buffer = new byte[8192];
1656 int length, validated = 0;
1657 for (Certificate cert : _envc.certs) {
1658 try (FileInputStream dataInput = new FileInputStream(target)) {
1659 Signature sig = Signature.getInstance(Digest.sigAlgorithm(sigVersion));
1660 sig.initVerify(cert);
1661 while ((length = dataInput.read(buffer)) != -1) {
1662 sig.update(buffer, 0, length);
1665 if (!sig.verify(Base64.decode(signature, Base64.DEFAULT))) {
1666 log.info("Signature does not match", "cert", cert.getPublicKey());
1669 log.info("Signature matches", "cert", cert.getPublicKey());
1673 } catch (IOException ioe) {
1674 log.warning("Failure validating signature of " + target + ": " + ioe);
1676 } catch (GeneralSecurityException gse) {
1682 // if we couldn't find a key that validates our digest, we are the hosed!
1683 if (validated == 0) {
1684 // delete the temporary digest file as we know it is invalid
1685 FileUtil.deleteHarder(target);
1686 throw new IOException("m.corrupt_digest_signature_error");
1691 // now move the temporary file over the original
1692 File original = getLocalPath(path);
1693 if (!FileUtil.renameTo(target, original)) {
1694 throw new IOException("Failed to rename(" + target + ", " + original + ")");
1699 * Download a path to a temporary file, returning a {@link File} instance with the path
1702 protected File downloadFile (String path)
1705 File target = getLocalPath(path + "_new");
1707 URL targetURL = null;
1709 targetURL = getRemoteURL(path);
1710 } catch (Exception e) {
1711 log.warning("Requested to download invalid control file",
1712 "appbase", _vappbase, "path", path, "error", e);
1713 throw (IOException) new IOException("Invalid path '" + path + "'.").initCause(e);
1716 log.info("Attempting to refetch '" + path + "' from '" + targetURL + "'.");
1718 // stream the URL into our temporary file
1719 URLConnection uconn = ConnectionUtil.open(proxy, targetURL, 0, 0);
1720 // we have to tell Java not to use caches here, otherwise it will cache any request for
1721 // same URL for the lifetime of this JVM (based on the URL string, not the URL object);
1722 // if the getdown.txt file, for example, changes in the meanwhile, we would never hear
1723 // about it; turning off caches is not a performance concern, because when Getdown asks
1724 // to download a file, it expects it to come over the wire, not from a cache
1725 uconn.setUseCaches(false);
1726 uconn.setRequestProperty("Accept-Encoding", "gzip");
1727 try (InputStream fin = uconn.getInputStream()) {
1728 String encoding = uconn.getContentEncoding();
1729 boolean gzip = "gzip".equalsIgnoreCase(encoding);
1730 try (InputStream fin2 = (gzip ? new GZIPInputStream(fin) : fin)) {
1731 try (FileOutputStream fout = new FileOutputStream(target)) {
1732 StreamUtil.copy(fin2, fout);
1740 /** Helper function for creating {@link Resource} instances. */
1741 protected Resource createResource (String path, EnumSet<Resource.Attr> attrs)
1742 throws MalformedURLException
1744 return new Resource(path, getRemoteURL(path), getLocalPath(path), attrs);
1747 /** Helper function to add all values in {@code values} (if non-null) to {@code target}. */
1748 protected static void addAll (String[] values, List<String> target) {
1749 if (values != null) {
1750 for (String value : values) {
1757 * Make an immutable List from the specified int array.
1759 public static List<Integer> intsToList (int[] values)
1761 List<Integer> list = new ArrayList<>(values.length);
1762 for (int val : values) {
1765 return Collections.unmodifiableList(list);
1769 * Make an immutable List from the specified String array.
1771 public static List<String> stringsToList (String[] values)
1773 return values == null ? null : Collections.unmodifiableList(Arrays.asList(values));
1776 /** Used to parse resources with the specified name. */
1777 protected void parseResources (Config config, String name, EnumSet<Resource.Attr> attrs,
1778 List<Resource> list)
1780 String[] rsrcs = config.getMultiValue(name);
1781 if (rsrcs == null) {
1784 for (String rsrc : rsrcs) {
1786 list.add(createResource(rsrc, attrs));
1787 } catch (Exception e) {
1788 log.warning("Invalid resource '" + rsrc + "'. " + e);
1793 /** Possibly generates and returns a google analytics tracking cookie. */
1794 protected String getGATrackingCode ()
1796 if (_trackingGAHash == null) {
1799 long time = System.currentTimeMillis() / 1000;
1800 if (_trackingStart == 0) {
1801 _trackingStart = time;
1803 if (_trackingId == 0) {
1804 int low = 100000000, high = 1000000000;
1805 _trackingId = low + _rando.nextInt(high-low);
1807 StringBuilder cookie = new StringBuilder("&utmcc=__utma%3D").append(_trackingGAHash);
1808 cookie.append(".").append(_trackingId);
1809 cookie.append(".").append(_trackingStart).append(".").append(_trackingStart);
1810 cookie.append(".").append(time).append(".1%3B%2B");
1811 cookie.append("__utmz%3D").append(_trackingGAHash).append(".");
1812 cookie.append(_trackingStart).append(".1.1.");
1813 cookie.append("utmcsr%3D(direct)%7Cutmccn%3D(direct)%7Cutmcmd%3D(none)%3B");
1814 int low = 1000000000, high = 2000000000;
1815 cookie.append("&utmn=").append(_rando.nextInt(high-low));
1816 return cookie.toString();
1820 * Encodes a path for use in a URL.
1822 protected static String encodePath (String path)
1825 // we want to keep slashes because we're encoding an entire path; also we need to turn
1826 // + into %20 because web servers don't like + in paths or file names, blah
1827 return URLEncoder.encode(path, "UTF-8").replace("%2F", "/").replace("+", "%20");
1828 } catch (UnsupportedEncodingException ue) {
1829 log.warning("Failed to URL encode " + path + ": " + ue);
1834 protected File getLocalPath (File appdir, String path)
1836 return new File(appdir, path);
1839 public static void setStartupFilesFromParameterString(String p) {
1840 // multiple files *might* be passed in as space separated quoted filenames
1842 if (!StringUtil.isBlank(p)) {
1844 // split quoted params or treat as single string array
1845 if (p.startsWith(q) && p.endsWith(q)) {
1846 // this fails if, e.g.
1847 // p=q("stupidfilename\" " "otherfilename")
1848 // let's hope no-one ever ends a filename with '" '
1849 filenames = p.substring(q.length(),p.length()-q.length()).split(q+" "+q);
1851 // single unquoted filename
1852 filenames = new String[]{p};
1855 // check for locator file. Only allow one locator file to be double clicked (if multiple files opened, ignore locator files)
1856 String locatorFilename = filenames.length >= 1 ? filenames[0] : null;
1858 !StringUtil.isBlank(locatorFilename)
1859 && locatorFilename.toLowerCase().endsWith("."+Application.LOCATOR_FILE_EXTENSION)
1861 setLocatorFile(locatorFilename);
1862 // remove the locator filename from the filenames array
1863 String[] otherFilenames = new String[filenames.length - 1];
1864 System.arraycopy(filenames, 1, otherFilenames, 0, otherFilenames.length);
1865 filenames = otherFilenames;
1868 for (int i = 0; i < filenames.length; i++) {
1869 String filename = filenames[i];
1870 // skip any other locator files in a multiple file list
1871 if (! filename.toLowerCase().endsWith("."+Application.LOCATOR_FILE_EXTENSION)) {
1872 addStartupFile(filename);
1878 public static void setLocatorFile(String filename) {
1879 _locatorFile = new File(filename);
1882 public static void addStartupFile(String filename) {
1883 _startupFiles.add(new File(filename));
1886 private Config createLocatorConfig(Config.ParseOpts opts) {
1887 if (_locatorFile == null) {
1891 Config locatorConfig = null;
1894 Config tmpConfig = null;
1895 Map<String, Object> tmpData = new HashMap<>();
1896 if (_locatorFile.exists()) {
1897 tmpConfig = Config.parseConfig(_locatorFile, opts);
1898 // appbase is sanitised in HostWhitelist
1899 Map<String, Object> tmpConfigData = tmpConfig.getData();
1900 if (tmpConfig != null) {
1901 for (Map.Entry<String, Object> entry : tmpConfigData.entrySet()) {
1902 String key = entry.getKey();
1903 Object value = entry.getValue();
1904 String mkey = key.indexOf('.') > -1 ? key.substring(key.indexOf('.') + 1) : key;
1905 if (Config.allowedReplaceKeys.contains(mkey) || Config.allowedMergeKeys.contains(mkey)) {
1906 tmpData.put(key, value);
1910 log.warning("Error occurred reading config file", "file", _locatorFile);
1913 log.warning("Given locator file does not exist", "file", _locatorFile);
1916 locatorConfig = new Config(tmpData);
1918 } catch (Exception e) {
1919 log.warning("Failure reading locator file", "file", _locatorFile, e);
1922 log.info("Returning locatorConfig", locatorConfig);
1924 return locatorConfig;
1927 public String getAppbase() {
1931 protected final EnvConfig _envc;
1932 protected File _config;
1933 protected Digest _digest;
1935 protected long _version = -1;
1936 protected long _targetVersion = -1;
1937 protected String _appbase;
1938 protected URL _vappbase;
1939 protected URL _latest;
1940 protected String _class;
1941 protected String _dockName;
1942 protected String _dockIconPath;
1943 protected boolean _strictComments;
1944 protected boolean _windebug;
1945 protected boolean _allowOffline;
1946 protected int _maxConcDownloads;
1948 protected String _trackingURL;
1949 protected Set<Integer> _trackingPcts;
1950 protected String _trackingCookieName;
1951 protected String _trackingCookieProperty;
1952 protected String _trackingURLSuffix;
1953 protected String _trackingGAHash;
1954 protected long _trackingStart;
1955 protected int _trackingId;
1957 protected String _javaVersionProp = "java.version";
1958 protected String _javaVersionRegex = "(\\d+)(?:\\.(\\d+)(?:\\.(\\d+)(_\\d+)?)?)?";
1959 protected long _javaMinVersion, _javaMaxVersion;
1960 protected boolean _javaExactVersionRequired;
1961 protected String _javaLocation;
1963 protected List<Resource> _codes = new ArrayList<>();
1964 protected List<Resource> _resources = new ArrayList<>();
1966 protected boolean _useCodeCache;
1967 protected int _codeCacheRetentionDays;
1969 protected Map<String,AuxGroup> _auxgroups = new HashMap<>();
1970 protected Map<String,Boolean> _auxactive = new HashMap<>();
1972 protected List<String> _jvmargs = new ArrayList<>();
1973 protected List<String> _appargs = new ArrayList<>();
1975 protected String[] _optimumJvmArgs;
1977 protected List<String> _txtJvmArgs = new ArrayList<>();
1979 /** If a warning has been issued about not being able to set modtimes. */
1980 protected boolean _warnedAboutSetLastModified;
1982 /** Locks gettingdown.lock in the app dir. Held the entire time updating is going on.*/
1983 protected FileLock _lock;
1985 /** Channel to the file underlying _lock. Kept around solely so the lock doesn't close. */
1986 protected FileChannel _lockChannel;
1988 protected Random _rando = new Random();
1990 protected static final String[] EMPTY_STRING_ARRAY = new String[0];
1992 protected static final String ENV_VAR_PREFIX = "%ENV.";
1993 protected static final Pattern ENV_VAR_PATTERN = Pattern.compile("%ENV\\.(.*?)%");
1995 protected static File _locatorFile;
1996 protected static List<File> _startupFiles = new ArrayList<>();
1997 public static final String LOCATOR_FILE_EXTENSION = "jvl";