GhidraMCP

package com.lauriewired.handlers.get; import com.lauriewired.handlers.Handler; import com.sun.net.httpserver.HttpExchange; import ghidra.framework.plugintool.PluginTool; import ghidra.program.model.address.Address; import ghidra.program.model.listing.Program; import java.io.IOException; import java.util.*; import static com.lauriewired.util.ParseUtils.*; import static ghidra.program.util.GhidraProgramUtilities.getCurrentProgram; /** * Handler to get bytes from a specified address in the current program. * Expects query parameters: address=<address> and size=<size>. */ public final class GetBytes extends Handler { /** * Constructor for the GetBytes handler. * * @param tool The PluginTool instance to use. */ public GetBytes(PluginTool tool) { super(tool, "/get_bytes"); } /** * Parses the query parameters from the HTTP exchange. * * @param exchange The HTTP exchange containing the request. * @return A map of query parameters. */ @Override public void handle(HttpExchange exchange) throws IOException { Map<String, String> qparams = parseQueryParams(exchange); String addrStr = qparams.get("address"); int size = parseIntOrDefault(qparams.get("size"), 1); sendResponse(exchange, getBytes(addrStr, size)); } /** * Gets the bytes from the specified address in the current program. * * @param addressStr The address to read from. * @param size The number of bytes to read. * @return A string representation of the bytes in hex format. */ private String getBytes(String addressStr, int size) { Program program = getCurrentProgram(tool); if (program == null) return "No program loaded"; if (addressStr == null || addressStr.isEmpty()) return "Address is required"; if (size <= 0) return "Size must be > 0"; try { Address addr = program.getAddressFactory().getAddress(addressStr); byte[] buf = new byte[size]; int read = program.getMemory().getBytes(addr, buf); return hexdump(addr, buf, read); } catch (Exception e) { return "Error reading memory: " + e.getMessage(); } } }