2026-05-23 09:23:12 -05:00

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#include "..\script_component.hpp"
/*
* File: fnc_transport.sqf
* Author: IDSolutions
* Date: 2026-04-01
* Public: No
*
* Description:
* Shared transport helper for staging oversized requests and assembling
* chunked responses.
*
* Parameter(s):
* 0: Mode <STRING>
* "stage": 1=function, 2=argumentsJson, 3=chunkSize, 4=invoker
* "assemble": 1=response, 2=success, 3=chunkPrefix, 4=chunkPrefixLength, 5=invoker
*
* Returns:
* Depends on mode.
*/
params [["_mode", "", [""]]];
switch (_mode) do {
case "stage": {
_this params [
"_mode",
["_transportFunction", "", [""]],
["_argumentsJson", "", [""]],
["_requestChunkSize", 12000, [0]],
["_callExtensionCommand", {}, [{}]]
];
private _transferID = format [
"req_%1_%2",
floor (diag_tickTime * 1000),
floor (random 1000000000)
];
for "_offset" from 0 to ((count toArray _argumentsJson) - 1) step _requestChunkSize do {
private _chunk = _argumentsJson select [_offset, _requestChunkSize];
["transport:request:append", [_transferID, _chunk]] call _callExtensionCommand params [
"_appendResult",
"_appendSuccess"
];
if (!_appendSuccess || { !(_appendResult isEqualType "") } || { (_appendResult find "Error:") == 0 }) exitWith {
_transferID = "";
};
};
if (_transferID isEqualTo "") exitWith {
["", [], false]
};
[
"transport:invoke_stored",
[_transportFunction, _transferID],
true
]
};
case "assemble": {
_this params [
"_mode",
["_response", "", [""]],
["_responseSuccess", false, [true]],
["_chunkPrefix", "", [""]],
["_chunkPrefixLength", 0, [0]],
["_callExtensionCommand", {}, [{}]]
];
if !(_responseSuccess && { _response isEqualType "" } && { (_response find _chunkPrefix) == 0 }) exitWith {
[_response, _responseSuccess]
};
private _chunkEnvelope = fromJSON (_response select [_chunkPrefixLength]);
if !(_chunkEnvelope isEqualType createHashMap) exitWith {
["Error: Invalid extension chunk envelope", false]
};
private _transferID = _chunkEnvelope getOrDefault ["transferId", ""];
private _chunkCount = _chunkEnvelope getOrDefault ["chunkCount", 0];
if (_transferID isEqualTo "" || { !(_chunkCount isEqualType 0) } || { _chunkCount < 1 }) exitWith {
["Error: Invalid extension chunk metadata", false]
};
private _assembledResponse = "";
private _chunkReadSuccess = true;
for "_index" from 0 to (_chunkCount - 1) do {
["transport:response:get", [_transferID, str _index]] call _callExtensionCommand params [
"_chunkResult",
"_chunkSuccess"
];
if (!_chunkSuccess || { !(_chunkResult isEqualType "") } || { (_chunkResult find "Error:") == 0 }) exitWith {
_chunkReadSuccess = false;
_assembledResponse = "Error: Failed to retrieve chunked extension response";
};
_assembledResponse = _assembledResponse + _chunkResult;
};
["transport:response:clear", [_transferID]] call _callExtensionCommand;
[_assembledResponse, _chunkReadSuccess]
};
default {
["Error: Unsupported extension transport mode", false]
};
};