From 8e3b4422a933f87c1a36a6efd583ebf0803891a1 Mon Sep 17 00:00:00 2001
From: Harsh Shandilya <me@msfjarvis.dev>
Date: Sat, 3 Dec 2022 17:46:03 +0530
Subject: [PATCH] feat(app): add implementations for SentryLeakUploader

---
 .../util/leaks/SentryLeakUploader.kt          |  8 +++
 .../util/leaks/SentryLeakUploader.kt          | 67 +++++++++++++++++++
 2 files changed, 75 insertions(+)
 create mode 100644 app/src/free/java/app/passwordstore/util/leaks/SentryLeakUploader.kt
 create mode 100644 app/src/nonFree/java/app/passwordstore/util/leaks/SentryLeakUploader.kt

diff --git a/app/src/free/java/app/passwordstore/util/leaks/SentryLeakUploader.kt b/app/src/free/java/app/passwordstore/util/leaks/SentryLeakUploader.kt
new file mode 100644
index 00000000..4b59b9f7
--- /dev/null
+++ b/app/src/free/java/app/passwordstore/util/leaks/SentryLeakUploader.kt
@@ -0,0 +1,8 @@
+package app.passwordstore.util.leaks
+
+import leakcanary.EventListener
+
+object SentryLeakUploader : EventListener {
+
+  override fun onEvent(event: EventListener.Event) {}
+}
diff --git a/app/src/nonFree/java/app/passwordstore/util/leaks/SentryLeakUploader.kt b/app/src/nonFree/java/app/passwordstore/util/leaks/SentryLeakUploader.kt
new file mode 100644
index 00000000..d8889350
--- /dev/null
+++ b/app/src/nonFree/java/app/passwordstore/util/leaks/SentryLeakUploader.kt
@@ -0,0 +1,67 @@
+package app.passwordstore.util.leaks
+
+import io.sentry.Sentry
+import io.sentry.SentryEvent
+import leakcanary.EventListener
+import leakcanary.EventListener.Event
+import shark.HeapAnalysisSuccess
+import shark.Leak
+import shark.LeakTrace
+import shark.LibraryLeak
+
+object SentryLeakUploader : EventListener {
+
+  override fun onEvent(event: Event) {
+    when (event) {
+      is Event.HeapAnalysisDone<*> -> {
+        if (event.heapAnalysis !is HeapAnalysisSuccess) return
+        val heapAnalysis = event.heapAnalysis as HeapAnalysisSuccess
+        val allLeakTraces =
+          heapAnalysis.allLeaks.toList().flatMap { leak ->
+            leak.leakTraces.map { leakTrace -> leak to leakTrace }
+          }
+
+        allLeakTraces.forEach { (leak, leakTrace) ->
+          val exception = FakeReportingException(leak.shortDescription)
+          val sentryEvent =
+            SentryEvent(exception).apply {
+              val leakContexts = mutableMapOf<String, Any>()
+              addHeapAnalysis(heapAnalysis, leakContexts)
+              addLeak(leak, leakContexts)
+              addLeakTrace(leakTrace, leakContexts)
+              contexts["Leak"] = leakContexts
+              // grouping leaks
+              fingerprints = listOf(leak.signature)
+            }
+          Sentry.captureEvent(sentryEvent)
+        }
+      }
+      else -> {}
+    }
+  }
+
+  private fun addHeapAnalysis(
+    heapAnalysis: HeapAnalysisSuccess,
+    leakContexts: MutableMap<String, Any>
+  ) {
+    leakContexts["heapDumpPath"] = heapAnalysis.heapDumpFile.absolutePath
+    heapAnalysis.metadata.forEach { (key, value) -> leakContexts[key] = value }
+    leakContexts["analysisDurationMs"] = heapAnalysis.analysisDurationMillis
+  }
+
+  private fun addLeak(leak: Leak, leakContexts: MutableMap<String, Any>) {
+    leakContexts["libraryLeak"] = leak is LibraryLeak
+    if (leak is LibraryLeak) {
+      leakContexts["libraryLeakPattern"] = leak.pattern.toString()
+      leakContexts["libraryLeakDescription"] = leak.description
+    }
+  }
+
+  private fun addLeakTrace(leakTrace: LeakTrace, leakContexts: MutableMap<String, Any>) {
+    leakTrace.retainedHeapByteSize?.let { leakContexts["retainedHeapByteSize"] = it }
+    leakContexts["signature"] = leakTrace.signature
+    leakContexts["leakTrace"] = leakTrace.toString()
+  }
+
+  class FakeReportingException(message: String) : RuntimeException(message)
+}