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authorsrdusr <[email protected]>2024-05-27 22:00:00 +0200
committersrdusr <[email protected]>2024-05-27 22:00:00 +0200
commitb565d7d9c47ca1ec5af0effd828431ee96027d60 (patch)
treefbe0c9c897e78f507443507354d5b1d8fb851099 /include/wireframe/l7/http.hpp
parentfbedc55d5aa861c381701c9f913b34ee7ab57ec4 (diff)
downloadpacketeer-b565d7d9c47ca1ec5af0effd828431ee96027d60.tar.gz
packeteer-b565d7d9c47ca1ec5af0effd828431ee96027d60.zip
Rename project from wireframe to packeteer
Decided on the name after weighing alternatives in NAMES.md: packeteer (packet + -eer, "one who wields packets") fit the project's actual scope better than the wire/frame pun once it had grown into full L2-L7 dissection, reassembly, checksums, privilege dropping, and dual TUI/GUI frontends. No existing packet-capture project uses the name; the one real-world collision (Packeteer, Inc., a networking company acquired and folded into Blue Coat/Symantec by 2008) is long defunct. Mechanical rename throughout: CMake project/target names, the wireframe:: namespace and include/wireframe/ directory (git mv, history preserved), every #include path, CLI/GUI help text, and the project's own working directory. NAMES.md rewritten to record the decision instead of leaving stale self-referential etymology behind from the blind rename pass. Verified after every step: full rebuild (all four targets, no warnings) and the full test suite (128/128 cases, 366/366 assertions) both from a fresh reconfigure and again after the directory move.
Diffstat (limited to 'include/wireframe/l7/http.hpp')
-rw-r--r--include/wireframe/l7/http.hpp113
1 files changed, 0 insertions, 113 deletions
diff --git a/include/wireframe/l7/http.hpp b/include/wireframe/l7/http.hpp
deleted file mode 100644
index 4780b23..0000000
--- a/include/wireframe/l7/http.hpp
+++ /dev/null
@@ -1,113 +0,0 @@
-#pragma once
-
-#include <cstdint>
-#include <optional>
-#include <span>
-#include <string>
-#include <string_view>
-
-#include "wireframe/l7/dissector.hpp"
-
-// Best-effort, single-segment HTTP/1.x request/status-line parsing (plus
-// the Host: header for requests). No TCP stream reassembly, so a
-// message split across multiple packets is only partially visible here
-// - the same scope DNS already has (single UDP datagram, no
-// reassembly). Good enough for a one-line summary, not a full dissector.
-namespace wireframe::net {
-
-inline constexpr std::uint16_t kHttpPort = 80;
-
-struct HttpMessage {
- bool is_request;
- std::string method_or_version; // request: method (GET); response: "HTTP/1.1"
- std::string target_or_status; // request: target path; response: status code
- std::optional<std::string> host; // request only, from a Host: header if present
-};
-
-inline std::optional<HttpMessage> parse_http(std::span<const unsigned char> payload) {
- std::string_view text(reinterpret_cast<const char*>(payload.data()), payload.size());
-
- std::size_t line_end = text.find("\r\n");
- std::size_t term_len = 2;
- if (line_end == std::string_view::npos) {
- line_end = text.find('\n');
- term_len = 1;
- if (line_end == std::string_view::npos) return std::nullopt;
- }
- std::string_view first_line = text.substr(0, line_end);
-
- std::size_t sp1 = first_line.find(' ');
- if (sp1 == std::string_view::npos) return std::nullopt;
- std::size_t sp2 = first_line.find(' ', sp1 + 1);
- if (sp2 == std::string_view::npos) return std::nullopt;
-
- std::string_view field1 = first_line.substr(0, sp1);
- std::string_view field2 = first_line.substr(sp1 + 1, sp2 - sp1 - 1);
-
- HttpMessage msg;
-
- if (field1.substr(0, 5) == "HTTP/") {
- msg.is_request = false;
- msg.method_or_version = std::string(field1);
- msg.target_or_status = std::string(field2);
- return msg;
- }
-
- static constexpr std::string_view kMethods[] = {"GET", "POST", "PUT", "DELETE",
- "HEAD", "OPTIONS", "PATCH", "CONNECT",
- "TRACE"};
- bool known_method = false;
- for (auto method : kMethods) {
- if (field1 == method) {
- known_method = true;
- break;
- }
- }
- if (!known_method) return std::nullopt;
-
- msg.is_request = true;
- msg.method_or_version = std::string(field1);
- msg.target_or_status = std::string(field2);
-
- // Best-effort Host: header scan, bounded by whatever this one
- // packet contains and terminated at the first blank line (end of
- // headers) or the end of the payload - never loops past text.size().
- std::size_t pos = line_end + term_len;
- while (pos < text.size()) {
- std::size_t next_end = text.find("\r\n", pos);
- std::size_t header_len = (next_end == std::string_view::npos) ? text.size() - pos
- : next_end - pos;
- std::string_view header_line = text.substr(pos, header_len);
- if (header_line.empty()) break; // blank line: end of headers
-
- if (header_line.size() > 5 &&
- (header_line.substr(0, 5) == "Host:" || header_line.substr(0, 5) == "host:")) {
- std::size_t value_start = 5;
- while (value_start < header_line.size() && header_line[value_start] == ' ') {
- ++value_start;
- }
- msg.host = std::string(header_line.substr(value_start));
- }
-
- if (next_end == std::string_view::npos) break;
- pos = next_end + 2;
- }
-
- return msg;
-}
-
-class HttpDissector : public L7Dissector {
-public:
- std::uint16_t port() const override { return kHttpPort; }
-
- std::optional<std::string> summarize(std::span<const unsigned char> payload) const override {
- auto msg = parse_http(payload);
- if (!msg) return std::nullopt;
-
- std::string out = "HTTP " + msg->method_or_version + " " + msg->target_or_status;
- if (msg->host) out += " Host: " + *msg->host;
- return out;
- }
-};
-
-} // namespace wireframe::net