Add MojangRateLimitException

src/main/java/me/braydon/mc/controller/PlayerController.java

@@ -679,6 +679,7 @@ package me.braydon.mc.controller;
 import lombok.NonNull;
 import lombok.extern.log4j.Log4j2;
 import me.braydon.mc.exception.impl.BadRequestException;
+import me.braydon.mc.exception.impl.MojangRateLimitException;
 import me.braydon.mc.exception.impl.ResourceNotFoundException;
 import me.braydon.mc.model.Player;
 import me.braydon.mc.model.cache.CachedPlayer;
@@ -715,10 +716,13 @@ public final class PlayerController {
      * @return the player response
      * @throws BadRequestException       if the UUID or username is invalid
      * @throws ResourceNotFoundException if the player is not found
+     * @throws MojangRateLimitException  if the Mojang API rate limit is reached
      */
     @GetMapping("/{query}")
     @ResponseBody
-    public ResponseEntity<CachedPlayer> getPlayer(@PathVariable @NonNull String query) throws BadRequestException, ResourceNotFoundException {
+    public ResponseEntity<CachedPlayer> getPlayer(@PathVariable @NonNull String query)
+            throws BadRequestException, ResourceNotFoundException, MojangRateLimitException
+    {
         return ResponseEntity.ofNullable(mojangService.getPlayer(query, false));
     }
 

src/main/java/me/braydon/mc/exception/impl/MojangRateLimitException.java

@@ -0,0 +1,693 @@
+/*
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+ *   12. No Surrender of Others' Freedom.
+ *
+ *   If conditions are imposed on you (whether by court order, agreement or
+ * otherwise) that contradict the conditions of this License, they do not
+ * excuse you from the conditions of this License.  If you cannot convey a
+ * covered work so as to satisfy simultaneously your obligations under this
+ * License and any other pertinent obligations, then as a consequence you may
+ * not convey it at all.  For example, if you agree to terms that obligate you
+ * to collect a royalty for further conveying from those to whom you convey
+ * the Program, the only way you could satisfy both those terms and this
+ * License would be to refrain entirely from conveying the Program.
+ *
+ *   13. Use with the GNU Affero General Public License.
+ *
+ *   Notwithstanding any other provision of this License, you have
+ * permission to link or combine any covered work with a work licensed
+ * under version 3 of the GNU Affero General Public License into a single
+ * combined work, and to convey the resulting work.  The terms of this
+ * License will continue to apply to the part which is the covered work,
+ * but the special requirements of the GNU Affero General Public License,
+ * section 13, concerning interaction through a network will apply to the
+ * combination as such.
+ *
+ *   14. Revised Versions of this License.
+ *
+ *   The Free Software Foundation may publish revised and/or new versions of
+ * the GNU General Public License from time to time.  Such new versions will
+ * be similar in spirit to the present version, but may differ in detail to
+ * address new problems or concerns.
+ *
+ *   Each version is given a distinguishing version number.  If the
+ * Program specifies that a certain numbered version of the GNU General
+ * Public License "or any later version" applies to it, you have the
+ * option of following the terms and conditions either of that numbered
+ * version or of any later version published by the Free Software
+ * Foundation.  If the Program does not specify a version number of the
+ * GNU General Public License, you may choose any version ever published
+ * by the Free Software Foundation.
+ *
+ *   If the Program specifies that a proxy can decide which future
+ * versions of the GNU General Public License can be used, that proxy's
+ * public statement of acceptance of a version permanently authorizes you
+ * to choose that version for the Program.
+ *
+ *   Later license versions may give you additional or different
+ * permissions.  However, no additional obligations are imposed on any
+ * author or copyright holder as a result of your choosing to follow a
+ * later version.
+ *
+ *   15. Disclaimer of Warranty.
+ *
+ *   THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+ * APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+ * HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+ * OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+ * IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ * ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+ *
+ *   16. Limitation of Liability.
+ *
+ *   IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+ * WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+ * THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+ * GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+ * USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+ * DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+ * PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+ * EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGES.
+ *
+ *   17. Interpretation of Sections 15 and 16.
+ *
+ *   If the disclaimer of warranty and limitation of liability provided
+ * above cannot be given local legal effect according to their terms,
+ * reviewing courts shall apply local law that most closely approximates
+ * an absolute waiver of all civil liability in connection with the
+ * Program, unless a warranty or assumption of liability accompanies a
+ * copy of the Program in return for a fee.
+ *
+ *                      END OF TERMS AND CONDITIONS
+ *
+ *             How to Apply These Terms to Your New Programs
+ *
+ *   If you develop a new program, and you want it to be of the greatest
+ * possible use to the public, the best way to achieve this is to make it
+ * free software which everyone can redistribute and change under these terms.
+ *
+ *   To do so, attach the following notices to the program.  It is safest
+ * to attach them to the start of each source file to most effectively
+ * state the exclusion of warranty; and each file should have at least
+ * the "copyright" line and a pointer to where the full notice is found.
+ *
+ *     <one line to give the program's name and a brief idea of what it does.>
+ *     Copyright (C) <year>  <name of author>
+ *
+ *     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 3 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, see <https://www.gnu.org/licenses/>.
+ *
+ * Also add information on how to contact you by electronic and paper mail.
+ *
+ *   If the program does terminal interaction, make it output a short
+ * notice like this when it starts in an interactive mode:
+ *
+ *     RESTfulMC  Copyright (C) 2024  Braydon (Rainnny), and the RESTfulMC contributors
+ *     This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ *     This is free software, and you are welcome to redistribute it
+ *     under certain conditions; type `show c' for details.
+ *
+ * The hypothetical commands `show w' and `show c' should show the appropriate
+ * parts of the General Public License.  Of course, your program's commands
+ * might be different; for a GUI interface, you would use an "about box".
+ *
+ *   You should also get your employer (if you work as a programmer) or school,
+ * if any, to sign a "copyright disclaimer" for the program, if necessary.
+ * For more information on this, and how to apply and follow the GNU GPL, see
+ * <https://www.gnu.org/licenses/>.
+ *
+ *   The GNU General Public License does not permit incorporating your program
+ * into proprietary programs.  If your program is a subroutine library, you
+ * may consider it more useful to permit linking proprietary applications with
+ * the library.  If this is what you want to do, use the GNU Lesser General
+ * Public License instead of this License.  But first, please read
+ * <https://www.gnu.org/licenses/why-not-lgpl.html>.
+ */
+package me.braydon.mc.exception.impl;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.ResponseStatus;
+
+/**
+ * This exception is raised when the
+ * Mojang API rate limit is reached.
+ *
+ * @author Braydon
+ */
+@ResponseStatus(HttpStatus.TOO_MANY_REQUESTS)
+public final class MojangRateLimitException extends RuntimeException {
+    public MojangRateLimitException() {
+        super("Mojang requests exhausted, please try again later.");
+    }
+}

src/main/java/me/braydon/mc/service/MojangService.java

@@ -689,6 +689,7 @@ import me.braydon.mc.common.web.JsonWebException;
 import me.braydon.mc.common.web.JsonWebRequest;
 import me.braydon.mc.exception.impl.BadRequestException;
 import me.braydon.mc.exception.impl.InvalidMinecraftServerPlatform;
+import me.braydon.mc.exception.impl.MojangRateLimitException;
 import me.braydon.mc.exception.impl.ResourceNotFoundException;
 import me.braydon.mc.model.*;
 import me.braydon.mc.model.cache.CachedMinecraftServer;
@@ -797,8 +798,11 @@ public final class MojangService {
      * @param size      the size of the skin part image
      * @return the skin part texture
      * @throws BadRequestException if the extension is invalid
+     * @throws MojangRateLimitException if the Mojang API rate limit is reached
      */
-    public byte[] getSkinPartTexture(@NonNull String partName, @NonNull String query, @NonNull String extension, Integer size) {
+    public byte[] getSkinPartTexture(@NonNull String partName, @NonNull String query, @NonNull String extension, Integer size)
+            throws BadRequestException, MojangRateLimitException
+    {
         Skin.Part part = EnumUtils.getEnumConstant(Skin.Part.class, partName.toUpperCase()); // The skin part to get
         if (part == null) { // Default to the head part
             part = Skin.Part.HEAD;
@@ -838,9 +842,12 @@ public final class MojangService {
      * @return the player
      * @throws BadRequestException       if the UUID or username is invalid
      * @throws ResourceNotFoundException if the player is not found
+     * @throws MojangRateLimitException if the Mojang API rate limit is reached
      */
     @NonNull
-    public CachedPlayer getPlayer(@NonNull String query, boolean bypassCache) throws BadRequestException, ResourceNotFoundException {
+    public CachedPlayer getPlayer(@NonNull String query, boolean bypassCache)
+            throws BadRequestException, ResourceNotFoundException, MojangRateLimitException
+    {
         log.info("Requesting player with query: {}", query);
 
         UUID uuid; // The player UUID to lookup
@@ -1037,9 +1044,10 @@ public final class MojangService {
      * @param username the player's username
      * @return the player's UUID
      * @throws ResourceNotFoundException if the player isn't found
+     * @throws MojangRateLimitException if the Mojang rate limit is reached
      */
     @NonNull
-    private UUID usernameToUUID(@NonNull String username) throws ResourceNotFoundException {
+    private UUID usernameToUUID(@NonNull String username) throws ResourceNotFoundException, MojangRateLimitException {
         String originalUsername = username;
         username = username.toLowerCase(); // Lowercase the username
 
@@ -1062,7 +1070,9 @@ public final class MojangService {
             log.info("Cached UUID for username {}: {}", username, uuid);
             return uuid;
         } catch (JsonWebException ex) {
-            if (ex.getStatusCode() == 404) {
+            if (ex.getStatusCode() == 429) { // Mojang rate limit reached
+                throw new MojangRateLimitException();
+            } else if (ex.getStatusCode() == 404) { // Player not found
                 throw new ResourceNotFoundException("Player not found with username: %s".formatted(originalUsername));
             }
             throw ex;