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Implemented communication with custom binary structure instead of JSON requests

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This commit is contained in:
Jakob Friedl
2025-07-19 16:49:27 +02:00
parent d22ad0bd0c
commit 99f55cc04f
19 changed files with 524 additions and 433 deletions
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58
src/server/api/handlers.nim
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@@ -2,6 +2,7 @@ import terminal, strformat, strutils, sequtils, tables, json, times, base64, sys
import ../[utils, globals]
import ../db/database
import ../task/packer
import ../../common/types
# Utility functions
@@ -40,6 +41,8 @@ proc getTasks*(listener, agent: string): seq[seq[byte]] =
{.cast(gcsafe).}:
var result: seq[seq[byte]]
# Check if listener exists
if not cq.dbListenerExists(listener.toUpperAscii):
cq.writeLine(fgRed, styleBright, fmt"[-] Task-retrieval request made to non-existent listener: {listener}.", "\n")
@@ -55,40 +58,47 @@ proc getTasks*(listener, agent: string): seq[seq[byte]] =
# if not cq.dbUpdateCheckin(agent.toUpperAscii, now().format("dd-MM-yyyy HH:mm:ss")):
# return nil
# Return tasks
return cq.agents[agent.toUpperAscii].tasks
# Return tasks
for task in cq.agents[agent.toUpperAscii].tasks:
let taskData = serializeTask(task)
result.add(taskData)
return result
proc handleResult*(listener, agent, task: string, taskResult: TaskResult) =
proc handleResult*(resultData: seq[byte]) =
{.cast(gcsafe).}:
let
taskResult = deserializeTaskResult(resultData)
taskId = uuidToString(taskResult.taskId)
agentId = uuidToString(taskResult.agentId)
listenerId = uuidToString(taskResult.listenerId)
let date: string = now().format("dd-MM-yyyy HH:mm:ss")
cq.writeLine(fgBlack, styleBright, fmt"[{date}] [*] ", resetStyle, fmt"{$resultData.len} bytes received.")
if taskResult.status == cast[uint8](STATUS_FAILED):
cq.writeLine(fgBlack, styleBright, fmt"[{date}]", fgRed, styleBright, " [-] ", resetStyle, fmt"Task {task} failed.")
case cast[StatusType](taskResult.status):
of STATUS_COMPLETED:
cq.writeLine(fgBlack, styleBright, fmt"[{date}]", fgGreen, " [+] ", resetStyle, fmt"Task {taskId} completed.")
if taskResult.data.len != 0:
cq.writeLine(fgBlack, styleBright, fmt"[{date}]", fgRed, styleBright, " [-] ", resetStyle, "Output:")
of STATUS_FAILED:
cq.writeLine(fgBlack, styleBright, fmt"[{date}]", fgRed, styleBright, " [-] ", resetStyle, fmt"Task {taskId} failed.")
case cast[ResultType](taskResult.resultType):
of RESULT_STRING:
if int(taskResult.length) > 0:
cq.writeLine(fgBlack, styleBright, fmt"[{date}] [*] ", resetStyle, "Output:")
# Split result string on newline to keep formatting
# for line in decode(taskResult.data).split("\n"):
# cq.writeLine(line)
else:
cq.writeLine()
for line in taskResult.data.toString().split("\n"):
cq.writeLine(line)
else:
cq.writeLine(fgBlack, styleBright, fmt"[{date}]", fgGreen, " [+] ", resetStyle, fmt"Task {task} finished.")
if taskResult.data.len != 0:
cq.writeLine(fgBlack, styleBright, fmt"[{date}]", fgGreen, " [+] ", resetStyle, "Output:")
of RESULT_BINARY:
# Write binary data to a file
cq.writeLine()
# Split result string on newline to keep formatting
# for line in decode(taskResult.data).split("\n"):
# cq.writeLine(line)
else:
cq.writeLine()
of RESULT_NO_OUTPUT:
cq.writeLine()
# Update task queue to include all tasks, except the one that was just completed
# cq.agents[agent].tasks = cq.agents[agent].tasks.filterIt(it.id != task)
return
cq.agents[agentId].tasks = cq.agents[agentId].tasks.filterIt(it.taskId != taskResult.taskId)