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32 changes: 32 additions & 0 deletions
32
android/src/main/java/expo/modules/xmtpreactnativesdk/wrappers/DecryptedLocalAttachment.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,32 @@ | ||
| package expo.modules.xmtpreactnativesdk.wrappers | ||
|
|
||
| import com.google.gson.GsonBuilder | ||
| import com.google.gson.JsonObject | ||
| import com.google.gson.JsonParser | ||
|
|
||
| /** | ||
| * Refers to a decrypted attachment that is stored locally on the device. | ||
| */ | ||
| class DecryptedLocalAttachment( | ||
| val fileUri: String, | ||
| val mimeType: String, | ||
| ) { | ||
| companion object { | ||
| fun fromJsonObject(obj: JsonObject) = DecryptedLocalAttachment( | ||
| obj.get("fileUri").asString, | ||
| obj.get("mimeType").asString, | ||
| ) | ||
|
|
||
| fun fromJson(json: String): DecryptedLocalAttachment { | ||
| val obj = JsonParser.parseString(json).asJsonObject | ||
| return fromJsonObject(obj); | ||
| } | ||
| } | ||
|
|
||
| fun toJsonMap(): Map<String, Any> = mapOf( | ||
| "fileUri" to fileUri, | ||
| "mimeType" to mimeType, | ||
| ) | ||
|
|
||
| fun toJson(): String = GsonBuilder().create().toJson(toJsonMap()) | ||
| } |
66 changes: 66 additions & 0 deletions
66
...oid/src/main/java/expo/modules/xmtpreactnativesdk/wrappers/EncryptedAttachmentMetadata.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,66 @@ | ||
| package expo.modules.xmtpreactnativesdk.wrappers | ||
|
|
||
| import com.facebook.common.util.Hex | ||
| import com.google.gson.JsonObject | ||
| import com.google.protobuf.ByteString | ||
| import com.google.protobuf.kotlin.toByteString | ||
| import org.xmtp.android.library.codecs.Attachment | ||
| import org.xmtp.android.library.codecs.EncryptedEncodedContent | ||
| import org.xmtp.android.library.codecs.RemoteAttachment | ||
|
|
||
| /** | ||
| * Describes the metadata for an encrypted attachment used to encrypt/decrypt the payload. | ||
| */ | ||
| class EncryptedAttachmentMetadata( | ||
| val filename: String, | ||
| val secret: ByteString, | ||
| val salt: ByteString, | ||
| val nonce: ByteString, | ||
| val contentDigest: String, | ||
| val contentLength: Int, | ||
| ) { | ||
| companion object { | ||
| fun fromAttachment( | ||
| attachment: Attachment, | ||
| encrypted: EncryptedEncodedContent | ||
| ) = EncryptedAttachmentMetadata( | ||
| attachment.filename, | ||
| encrypted.secret, | ||
| encrypted.salt, | ||
| encrypted.nonce, | ||
| encrypted.contentDigest, | ||
| attachment.data.size(), | ||
| ) | ||
|
|
||
| fun fromRemoteAttachment( | ||
| remoteAttachment: RemoteAttachment, | ||
| ) = EncryptedAttachmentMetadata( | ||
| remoteAttachment.filename ?: "", | ||
| remoteAttachment.secret, | ||
| remoteAttachment.salt, | ||
| remoteAttachment.nonce, | ||
| remoteAttachment.contentDigest, | ||
| remoteAttachment.contentLength ?: 0, | ||
| ) | ||
|
|
||
| fun fromJsonObj( | ||
| obj: JsonObject, | ||
| ) = EncryptedAttachmentMetadata( | ||
| obj.get("filename").asString, | ||
| Hex.hexStringToByteArray(obj.get("secret").asString).toByteString(), | ||
| Hex.hexStringToByteArray(obj.get("salt").asString).toByteString(), | ||
| Hex.hexStringToByteArray(obj.get("nonce").asString).toByteString(), | ||
| obj.get("contentDigest").asString, | ||
| Integer.parseInt(obj.get("contentLength").asString), | ||
| ) | ||
| } | ||
|
|
||
| fun toJsonMap(): Map<String, Any> = mapOf( | ||
| "filename" to filename, | ||
| "secret" to Hex.encodeHex(secret.toByteArray(), false), | ||
| "salt" to Hex.encodeHex(salt.toByteArray(), false), | ||
| "nonce" to Hex.encodeHex(nonce.toByteArray(), false), | ||
| "contentDigest" to contentDigest, | ||
| "contentLength" to contentLength.toString(), | ||
| ) | ||
| } |
48 changes: 48 additions & 0 deletions
48
android/src/main/java/expo/modules/xmtpreactnativesdk/wrappers/EncryptedLocalAttachment.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,48 @@ | ||
| package expo.modules.xmtpreactnativesdk.wrappers | ||
|
|
||
| import android.net.Uri | ||
| import com.google.gson.GsonBuilder | ||
| import com.google.gson.JsonObject | ||
| import com.google.gson.JsonParser | ||
| import org.xmtp.android.library.codecs.Attachment | ||
| import org.xmtp.android.library.codecs.EncryptedEncodedContent | ||
|
|
||
| /** | ||
| * Refers to an encrypted attachment that is stored locally on the device | ||
| * alongside the metadata that can be used to encrypt/decrypt it. | ||
| */ | ||
| class EncryptedLocalAttachment( | ||
| val encryptedLocalFileUri: String, | ||
| val metadata: EncryptedAttachmentMetadata, | ||
| ) { | ||
| companion object { | ||
| fun from( | ||
| attachment: Attachment, | ||
| encrypted: EncryptedEncodedContent, | ||
| encryptedFile: Uri, | ||
| ) = EncryptedLocalAttachment( | ||
| encryptedFile.toString(), | ||
| EncryptedAttachmentMetadata.fromAttachment( | ||
| attachment, | ||
| encrypted | ||
| ) | ||
| ) | ||
|
|
||
| fun fromJsonObject(obj: JsonObject) = EncryptedLocalAttachment( | ||
| obj.get("encryptedLocalFileUri").asString, | ||
| EncryptedAttachmentMetadata.fromJsonObj(obj.get("metadata").asJsonObject), | ||
| ) | ||
|
|
||
| fun fromJson(json: String): EncryptedLocalAttachment { | ||
| val obj = JsonParser.parseString(json).asJsonObject | ||
| return fromJsonObject(obj); | ||
| } | ||
| } | ||
|
|
||
| fun toJsonMap(): Map<String, Any> = mapOf( | ||
| "encryptedLocalFileUri" to encryptedLocalFileUri, | ||
| "metadata" to metadata.toJsonMap() | ||
| ) | ||
|
|
||
| fun toJson(): String = GsonBuilder().create().toJson(toJsonMap()) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1 @@ | ||
| data/ |
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