Node / meshtastic / Meshtastic-Android / files / feature / map / src / androidMain / kotlin / org / meshtastic / feature / map / kml / KmlDocument.android.kt

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T8b949e/*

* Copyright (c) 2026 Meshtastic LLC

*

* 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/>.

*/

Tff7b72package T7ee787org.meshtastic.feature.map.kml

T8b949e// Duplicated verbatim in androidMain and jvmMain rather than shared from a custom `jvmAndroid` source-set group:

T8b949e// the hierarchy-template group would not attach to the AGP-owned android target, and a hand-written dependsOn edge

T8b949e// disables the default template and silently drops iosMain. A few dozen lines twice is cheaper than either failure

T8b949e// mode.

Tff7b72import T7ee787co.touchlab.kermit.Logger

Tff7b72import T7ee787org.meshtastic.feature.map.layers.MAX_KMZ_INFLATED_BYTES

Tff7b72import T7ee787org.meshtastic.feature.map.layers.isKmzArchive

Tff7b72import T7ee787java.io.ByteArrayInputStream

Tff7b72import T7ee787java.io.ByteArrayOutputStream

Tff7b72import T7ee787java.util.zip.ZipInputStream

Tff7b72actual Tff7b72fun Td2a8ffreadKmlDocumentTb4b4b4(Te6edf3bytesTb4b4b4: Te6edf3ByteArrayTb4b4b4)Tb4b4b4: Tffa657String? Tff7b72= Tff7b72if Tb4b4b4(Te6edf3bytesTb4b4b4.Te6edf3isKmzArchiveTb4b4b4(Tb4b4b4)Tb4b4b4) Tb4b4b4{

Te6edf3ZipInputStreamTb4b4b4(Te6edf3ByteArrayInputStreamTb4b4b4(Te6edf3bytesTb4b4b4)Tb4b4b4)Tb4b4b4.Te6edf3use Tb4b4b4{ Te6edf3zip Tff7b72-Tff7b72>

Te6edf3generateSequence Tb4b4b4{ Te6edf3zipTb4b4b4.Te6edf3nextEntry Tb4b4b4}

Tb4b4b4.Te6edf3firstOrNull Tb4b4b4{ Tff7b72!Tffa657itTb4b4b4.Te6edf3isDirectory Tff7b72&Tff7b72& Tffa657itTb4b4b4.Te6edf3nameTb4b4b4.Te6edf3endsWithTb4b4b4(Ta5d6ff"Ta5d6ff.kmlTa5d6ff"Tb4b4b4, Te6edf3ignoreCase Tff7b72= Tff7b72trueTb4b4b4) Tb4b4b4}

Tff7b72?.Te6edf3let Tb4b4b4{ Te6edf3zipTb4b4b4.Te6edf3readEntryWithinTb4b4b4(Te6edf3MAX_KMZ_INFLATED_BYTESTb4b4b4)Tff7b72?.Te6edf3decodeToStringTb4b4b4(Tb4b4b4) Tb4b4b4}

Tb4b4b4}

Tb4b4b4} Tff7b72else Tb4b4b4{

Te6edf3bytesTb4b4b4.Te6edf3decodeToStringTb4b4b4(Tb4b4b4)

Tb4b4b4}

Tff7b72actual Tff7b72fun Td2a8ffreadKmlArchiveImagesTb4b4b4(Te6edf3bytesTb4b4b4: Te6edf3ByteArrayTb4b4b4, Te6edf3hrefsTb4b4b4: Te6edf3SetTff7b72<Tffa657StringTff7b72>Tb4b4b4)Tb4b4b4: Te6edf3MapTff7b72<Tffa657StringTb4b4b4, Te6edf3ByteArrayTff7b72> Tb4b4b4{

Tff7b72if Tb4b4b4(Te6edf3hrefsTb4b4b4.Te6edf3isEmptyTb4b4b4(Tb4b4b4) Tff7b72|Tff7b72| Tff7b72!Te6edf3bytesTb4b4b4.Te6edf3isKmzArchiveTb4b4b4(Tb4b4b4)Tb4b4b4) Tff7b72return Te6edf3emptyMapTb4b4b4(Tb4b4b4)

Tff7b72val Te6edf3images Tff7b72= Te6edf3mutableMapOfTff7b72<Tffa657StringTb4b4b4, Te6edf3ByteArrayTff7b72>Tb4b4b4(Tb4b4b4)

Tff7b72var Te6edf3budget Tff7b72= Te6edf3MAX_KMZ_INFLATED_BYTES

Te6edf3ZipInputStreamTb4b4b4(Te6edf3ByteArrayInputStreamTb4b4b4(Te6edf3bytesTb4b4b4)Tb4b4b4)Tb4b4b4.Te6edf3use Tb4b4b4{ Te6edf3zip Tff7b72-Tff7b72>

Tff7b72var Te6edf3entry Tff7b72= Te6edf3zipTb4b4b4.Te6edf3nextEntry

Tff7b72while Tb4b4b4(Te6edf3entry Tff7b72!Tff7b72= Tff7b72nullTb4b4b4) Tb4b4b4{

Tff7b72if Tb4b4b4(Tff7b72!Te6edf3entryTb4b4b4.Te6edf3isDirectory Tff7b72&Tff7b72& Te6edf3entryTb4b4b4.Te6edf3name Tff7b72in Te6edf3hrefsTb4b4b4) Tb4b4b4{

T8b949e// Budget blown mid-archive: stop reading but keep the images already extracted — each draws on its

T8b949e// own — and let the overlays whose files went unread be skipped by the caller as "not packed".

Tff7b72val Te6edf3data Tff7b72= Te6edf3zipTb4b4b4.Te6edf3readEntryWithinTb4b4b4(Te6edf3budgetTb4b4b4) Tff7b72?: Tff7b72break

Te6edf3budget Tff7b72-Tff7b72= Te6edf3dataTb4b4b4.Te6edf3size

Te6edf3imagesTff7b72[Te6edf3entryTb4b4b4.Te6edf3nameTff7b72] Tff7b72= Te6edf3data

Tb4b4b4}

Te6edf3entry Tff7b72= Te6edf3zipTb4b4b4.Te6edf3nextEntry

Tb4b4b4}

Tb4b4b4}

Tff7b72return Te6edf3images

Tb4b4b4}

T8b949e/**

* This entry inflated, or null once it would take the archive past [remaining] bytes.

*

* The inflated size cannot be trusted from the entry header (a hostile zip lies there), so the cap is enforced on the

* bytes actually produced. `InputStream.readNBytes` would do this but is API 33+ on Android; minSdk is 26.

*/

Tff7b72private Tff7b72fun Te6edf3ZipInputStreamTb4b4b4.Td2a8ffreadEntryWithinTb4b4b4(Te6edf3remainingTb4b4b4: Tffa657LongTb4b4b4)Tb4b4b4: Te6edf3ByteArray? Tb4b4b4{

Tff7b72val Te6edf3out Tff7b72= Te6edf3ByteArrayOutputStreamTb4b4b4(Tb4b4b4)

Tff7b72val Te6edf3buffer Tff7b72= Te6edf3ByteArrayTb4b4b4(Te6edf3DEFAULT_BUFFER_SIZETb4b4b4)

Tff7b72while Tb4b4b4(Tff7b72trueTb4b4b4) Tb4b4b4{

Tff7b72val Te6edf3read Tff7b72= Te6edf3readTb4b4b4(Te6edf3bufferTb4b4b4)

Tff7b72if Tb4b4b4(Te6edf3read Tff7b72=Tff7b72= Tff7b72-T79c0ff1Tb4b4b4) Tff7b72return Tff7b72outTb4b4b4.Te6edf3toByteArrayTb4b4b4(Tb4b4b4)

Tff7b72if Tb4b4b4(Tff7b72outTb4b4b4.Te6edf3sizeTb4b4b4(Tb4b4b4) Tff7b72+ Te6edf3read Tff7b72> Te6edf3remainingTb4b4b4) Tb4b4b4{

Te6edf3LoggerTb4b4b4.Te6edf3withTagTb4b4b4(Ta5d6ff"Ta5d6ffKmlDocumentTa5d6ff"Tb4b4b4)Tb4b4b4.Te6edf3w Tb4b4b4{ Ta5d6ff"Ta5d6ffRefusing a KMZ entry past the Tffd700${Te6edf3MAX_KMZ_INFLATED_BYTESTffd700}Ta5d6ffB inflate capTa5d6ff" Tb4b4b4}

Tff7b72return Tff7b72null

Tb4b4b4}

Tff7b72outTb4b4b4.Te6edf3writeTb4b4b4(Te6edf3bufferTb4b4b4, T79c0ff0Tb4b4b4, Te6edf3readTb4b4b4)

Tb4b4b4}

Tb4b4b4}