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authorRoland Reichwein <mail@reichwein.it>2020-04-10 15:36:59 +0200
committerRoland Reichwein <mail@reichwein.it>2020-04-10 15:36:59 +0200
commitc0ccf16c69d43a89674640c61d13ec2c02b128d6 (patch)
treeae840bc16f0ddb430bdd68aacef4d7cb2af970d9 /plugins/static-files/static-files.cpp
parent0d157fb407a35f8afe6d6f0f4c2cc5cd5d5a1933 (diff)
First working plugin: static-files
Diffstat (limited to 'plugins/static-files/static-files.cpp')
-rw-r--r--plugins/static-files/static-files.cpp68
1 files changed, 66 insertions, 2 deletions
diff --git a/plugins/static-files/static-files.cpp b/plugins/static-files/static-files.cpp
index 358e239..ad85f22 100644
--- a/plugins/static-files/static-files.cpp
+++ b/plugins/static-files/static-files.cpp
@@ -1,8 +1,49 @@
#include "static-files.h"
+#include <filesystem>
+#include <fstream>
#include <iostream>
+#include <string>
using namespace std::string_literals;
+namespace fs = std::filesystem;
+
+namespace {
+
+std::string getFile(const fs::path& filename)
+{
+ std::ifstream file(filename.string(), std::ios::in | std::ios::binary | std::ios::ate);
+
+ if (file.is_open()) {
+ std::ifstream::pos_type fileSize = file.tellg();
+ file.seekg(0, std::ios::beg);
+
+ std::string bytes(fileSize, ' ');
+ file.read(reinterpret_cast<char*>(bytes.data()), fileSize);
+
+ return bytes;
+
+ } else {
+ throw std::runtime_error("Opening "s + filename.string() + " for reading");
+ }
+}
+
+std::string extend_index_html(std::string path)
+{
+ if (path.size() == 0 || (path.size() && path.back() == '/'))
+ path.append("index.html");
+ return path;
+}
+
+// Used to return errors by generating response page and HTTP status code
+std::string HttpStatus(std::string status, std::string message, std::function<plugin_interface_setter_type>& SetResponseHeader)
+{
+ SetResponseHeader("status", status);
+ SetResponseHeader("content_type", "text/html");
+ return status + " " + message;
+}
+
+}
std::string static_files_plugin::name()
{
@@ -26,9 +67,32 @@ std::string static_files_plugin::generate_page(
)
{
try {
- return "Static Files "s + GetServerParam("path"s);
+ // Make sure we can handle the method
+ std::string method {GetRequestParam("method")};
+ if (method != "GET" && method != "HEAD")
+ return HttpStatus("400", "Unknown HTTP method", SetResponseHeader);
+
+ // Request path must be absolute and not contain "..".
+ std::string rel_target{GetRequestParam("rel_target")};
+ if (rel_target.find("..") != std::string::npos) {
+ std::string target{GetRequestParam("target")};
+ return HttpStatus("400", "Illegal request: "s + target, SetResponseHeader);
+ }
+
+ // Build the path to the requested file
+ std::string doc_root{GetRequestParam("doc_root")};
+ std::string path {fs::path{doc_root} / extend_index_html(rel_target)};
+
+ try {
+ return getFile(path);
+ } catch (const std::runtime_error& ex) {
+ return HttpStatus("404", "Not found: "s + GetRequestParam("target"), SetResponseHeader);
+ } catch (const std::exception& ex) {
+ return HttpStatus("500", "Internal Server Error: "s + ex.what(), SetResponseHeader);
+ }
+
} catch (const std::exception& ex) {
- return "Error: "s + ex.what();
+ return HttpStatus("500", "Unknown Error: "s + ex.what(), SetResponseHeader);
}
}