From 1b0669bdccaf232db416d8c31110672ce86ff66e Mon Sep 17 00:00:00 2001
From: Juan Pablo Contreras Franco <juanp.contreras@gmail.com>
Date: Sun, 8 Oct 2023 19:29:19 +0200
Subject: [PATCH] Adds the scaffold for the HTTP 1.x reassembly example
 application

---
 Examples/CMakeLists.txt                 |  1 +
 Examples/HttpReassembler/CMakeLists.txt | 17 +++++
 Examples/HttpReassembler/README.md      | 14 ++++
 Examples/HttpReassembler/main.cpp       | 86 +++++++++++++++++++++++++
 Packet++/src/HttpReassembly.cpp         |  2 +-
 5 files changed, 119 insertions(+), 1 deletion(-)
 create mode 100644 Examples/HttpReassembler/CMakeLists.txt
 create mode 100644 Examples/HttpReassembler/README.md
 create mode 100644 Examples/HttpReassembler/main.cpp

diff --git a/Examples/CMakeLists.txt b/Examples/CMakeLists.txt
index d101bdd6e1..17946a2dd7 100644
--- a/Examples/CMakeLists.txt
+++ b/Examples/CMakeLists.txt
@@ -25,6 +25,7 @@ add_subdirectory(ArpSpoofing)
 add_subdirectory(DNSResolver)
 add_subdirectory(DnsSpoofing)
 add_subdirectory(HttpAnalyzer)
+add_subdirectory(HttpReassembler)
 add_subdirectory(IcmpFileTransfer)
 add_subdirectory(IPDefragUtil)
 add_subdirectory(IPFragUtil)
diff --git a/Examples/HttpReassembler/CMakeLists.txt b/Examples/HttpReassembler/CMakeLists.txt
new file mode 100644
index 0000000000..3e8802a044
--- /dev/null
+++ b/Examples/HttpReassembler/CMakeLists.txt
@@ -0,0 +1,17 @@
+add_executable(HttpReassembler main.cpp)
+
+target_link_libraries(HttpReassembler PUBLIC PcapPlusPlus::Pcap++)
+
+if(MSVC)
+  # This executable requires getopt.h not available on VStudio
+  target_link_libraries(HttpReassembler PRIVATE Getopt-for-Visual-Studio)
+endif()
+
+set_target_properties(HttpReassembler PROPERTIES RUNTIME_OUTPUT_DIRECTORY "${PCAPPP_BINARY_EXAMPLES_DIR}")
+
+if(PCAPPP_INSTALL)
+  install(
+    TARGETS HttpReassembler
+    EXPORT PcapPlusPlusTargets
+    RUNTIME DESTINATION ${PCAPPP_INSTALL_BINDIR})
+endif()
diff --git a/Examples/HttpReassembler/README.md b/Examples/HttpReassembler/README.md
new file mode 100644
index 0000000000..5e1ad3d5b3
--- /dev/null
+++ b/Examples/HttpReassembler/README.md
@@ -0,0 +1,14 @@
+HTTP Traffic Analyzer
+=====================
+
+This application reassembless HTTP 1.x packets and generate a file from the payload. It read packets from a pcap/pcap-ng file.
+
+Using the utility (Work In Progress)
+-----------------
+When extracting HTTP traffic payload a pcap/pcap-ng file:
+
+	Basic usage:
+		HttpAnalyzer [-h] -f input_file
+	Options:
+		-f           : The input pcap file to analyze. Required argument for this mode
+		-h           : Displays this help message and exits
diff --git a/Examples/HttpReassembler/main.cpp b/Examples/HttpReassembler/main.cpp
new file mode 100644
index 0000000000..918f10f249
--- /dev/null
+++ b/Examples/HttpReassembler/main.cpp
@@ -0,0 +1,86 @@
+/**
+ * HttpReassembler application
+ * ========================
+ * This application reassembles HTTP payloads from captured packets as a text file.
+ */
+
+#include <iostream>
+#include <getopt.h>
+#include "PcapPlusPlusVersion.h"
+#include "SystemUtils.h"
+
+#define EXIT_WITH_ERROR(reason) do { \
+	printUsage(); \
+	std::cout << std::endl << "ERROR: " << reason << std::endl << std::endl; \
+	exit(1); \
+	} while(0)
+
+static struct option HttpReassemblerOptions[] =
+{
+	{"help", no_argument, nullptr, 'h'},
+	{"version", no_argument, nullptr, 'v'}
+};
+
+/**
+ * Print application usage
+ */
+void printUsage()
+{
+	std::cout << std::endl
+		<< "Usage:" << std::endl
+		<< "----------------------" << std::endl
+		<< pcpp::AppName::get() << " [-vh]" << std::endl
+		<< std::endl
+		<< "Options:" << std::endl
+		<< std::endl
+		<< "    -v             : Displays the current version and exists" << std::endl
+		<< "    -h             : Displays this help message and exits" << std::endl
+		<< std::endl;
+}
+
+/**
+ * Print application version
+ */
+void printAppVersion()
+{
+	std::cout
+		<< pcpp::AppName::get() << " " << pcpp::getPcapPlusPlusVersionFull() << std::endl
+		<< "Built: " << pcpp::getBuildDateTime() << std::endl
+		<< "Built from: " << pcpp::getGitInfo() << std::endl;
+	exit(0);
+}
+
+/**
+ * Utility's main method
+ */
+int main(int argc, char* argv[])
+{
+	pcpp::AppName::init(argc, argv);
+
+	int optionIndex = 0;
+	int opt = 0;
+
+	if (argc == 1) {
+		printUsage();
+		exit(0);
+	}
+
+	while((opt = getopt_long(argc, argv, "hv", HttpReassemblerOptions, &optionIndex)) != -1)
+	{
+		switch (opt)
+		{
+			case 0:
+				break;
+			case 'h':
+				printUsage();
+				exit(0);
+				break;
+			case 'v':
+				printAppVersion();
+				break;
+			default:
+				printUsage();
+				exit(-1);
+		}
+	}
+}
diff --git a/Packet++/src/HttpReassembly.cpp b/Packet++/src/HttpReassembly.cpp
index 0b21fe9323..c5e38254dd 100644
--- a/Packet++/src/HttpReassembly.cpp
+++ b/Packet++/src/HttpReassembly.cpp
@@ -3,4 +3,4 @@
 namespace pcpp
 {
 
-}
\ No newline at end of file
+}