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monst
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102 changes: 102 additions & 0 deletions
102
src/main/java/com/monst/bankingplugin/util/UpdaterService.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,102 @@ | ||
| package com.monst.bankingplugin.util; | ||
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| import com.google.gson.JsonArray; | ||
| import com.google.gson.JsonElement; | ||
| import com.google.gson.JsonObject; | ||
| import com.google.gson.JsonParser; | ||
| import com.monst.bankingplugin.BankingPlugin; | ||
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| import java.io.InputStreamReader; | ||
| import java.net.URL; | ||
| import java.net.URLConnection; | ||
| import java.nio.charset.StandardCharsets; | ||
| import java.util.Optional; | ||
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| public class UpdaterService { | ||
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| private final BankingPlugin plugin; | ||
| private Update update; | ||
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| public UpdaterService(BankingPlugin plugin) { | ||
| this.plugin = plugin; | ||
| } | ||
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| /** | ||
| * Checks if an update is needed. | ||
| */ | ||
| public Promise<Update> checkForUpdate() { | ||
| plugin.debug("Checking for updates..."); | ||
| return Promise.async(plugin, () -> { | ||
| JsonElement response; | ||
| URL url = new URL("https://api.github.com/repos/FreshLlamanade/BankingPlugin/releases"); | ||
| URLConnection con = url.openConnection(); | ||
| con.setConnectTimeout(5000); | ||
| con.setRequestProperty("User-Agent", "BankingPlugin"); | ||
| con.setDoOutput(true); | ||
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| response = new JsonParser().parse(new InputStreamReader(con.getInputStream(), StandardCharsets.UTF_8)); | ||
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| // Releases are sorted by date, newest first | ||
| JsonArray releases = response.getAsJsonArray(); | ||
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| if (releases.size() == 0) | ||
| // No versions available | ||
| return update; | ||
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| String versionNumber = null; | ||
| JsonObject jar = null; | ||
| for (int i = releases.size() - 1; i >= 0; i--) { | ||
| JsonObject version = releases.get(i).getAsJsonObject(); | ||
| versionNumber = version.get("name").getAsString(); | ||
| plugin.debug("Checking version " + versionNumber); | ||
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| if (versionNumber.compareTo(plugin.getDescription().getVersion()) <= 0) { | ||
| // This version is no newer than current version | ||
| // No need to check further | ||
| return update; | ||
| } | ||
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| if (plugin.config().ignoreUpdatesContaining.ignore(versionNumber)) { // This version is ignored | ||
| plugin.debug("Skipping version " + versionNumber + " because it contains an ignored tag."); | ||
| continue; | ||
| } | ||
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| for (JsonElement asset : version.get("assets").getAsJsonArray()) { | ||
| if (((JsonObject) asset).get("name").getAsString().endsWith(".jar")) { | ||
| // Found the latest non-ignored jar available, and it is newer than the current version | ||
| jar = (JsonObject) asset; | ||
| break; | ||
| } | ||
| } | ||
| } | ||
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| if (jar == null) | ||
| // No suitable update found | ||
| return update; | ||
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| plugin.debug("Found latest version: " + versionNumber); | ||
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| // An update already exists newer or equal to this one | ||
| if (update != null && update.getVersion().compareTo(versionNumber) > 0) | ||
| return update; | ||
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| if (update != null) | ||
| update.setOutdated(); | ||
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| // Create a new update package | ||
| plugin.debug("Creating new update package."); | ||
| URL fileURL; | ||
| fileURL = new URL(jar.get("browser_download_url").getAsString()); | ||
| String checksum = Optional.ofNullable(jar.get("md5")).map(JsonElement::getAsString).orElse(null); | ||
| int downloadSize = jar.get("size").getAsInt(); | ||
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| update = new Update(plugin, versionNumber, fileURL, checksum, downloadSize); | ||
| return update; | ||
| }); | ||
| } | ||
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| public Update getUpdateIfAvailable() { | ||
| return update; | ||
| } | ||
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| } |