Webbox: Support subdirectory via URL. This makes webbox viable as index page

1 files changed, 22 insertions, 9 deletions

diff --git a/plugins/webbox/webbox.cpp b/plugins/webbox/webbox.cpp
index 4abb2bf..09ac7c5 100644
--- a/plugins/webbox/webbox.cpp
+++ b/plugins/webbox/webbox.cpp
@@ -32,7 +32,7 @@ namespace {
 
  static const std::string DOWNLOAD_FILENAME{"webbox-download.zip"};
 
- // STATIC_HTML_TARGET: no leading slash because comparision is done with relative path;
+ // STATIC_HTML_TARGET: no leading slash because comparison is done with relative path;
  // trailing slash because of path comparison
  static const std::string STATIC_HTML_TARGET{"webbox-html/"};
  static const fs::path STATIC_HTML_DOC_ROOT{"/usr/lib/webbox/html"};
@@ -75,7 +75,7 @@ namespace {
   return result;
  }
 
- std::unordered_map<std::string, std::string> ParseQueryString(std::string s)
+ std::unordered_map<std::string, std::string> ParseQueryString(const std::string& s, const std::string& webboxPath)
  {
   std::unordered_map<std::string, std::string> result;
 
@@ -88,7 +88,10 @@ namespace {
      result[urlDecode(i.substr(0, pos))] = urlDecode(i.substr(pos + 1));
     }
    }
-  } else if (s == "/" || s == "" || boost::algorithm::starts_with(s, STATIC_HTML_TARGET)) {
+  } else if (s.empty() || s.back() == '/' || boost::algorithm::starts_with(s, STATIC_HTML_TARGET) ||
+             boost::algorithm::contains(s, "/"s + STATIC_HTML_TARGET) ||
+             (s.back() != '/' && fs::exists(webboxPath + "/" + s) && fs::is_directory(webboxPath + "/" + s)))
+  {
    result["command"] = "static-html";
   }
   
@@ -104,12 +107,13 @@ namespace {
    std::string m_pathInfo; // path inside webbox, derived from request
    fs::path m_path; // local filesystem path
 
-   std::unordered_map<std::string, std::string> paramHash;
-
    std::string webboxPath;
    std::string webboxName;
    bool webboxReadOnly;
    fs::path webboxStaticHtml;
+   std::string m_rootdir;
+   
+   std::unordered_map<std::string, std::string> paramHash;
 
    CommandParameters(
      std::function<std::string(const std::string& key)>& GetServerParam,
@@ -119,11 +123,12 @@ namespace {
     : m_GetServerParam(GetServerParam)
     , m_GetRequestParam(GetRequestParam)
     , m_SetResponseHeader(SetResponseHeader)
-    , paramHash(ParseQueryString(GetRequestParam("rel_target"))) // rel_target contains query string
     , webboxPath(m_GetRequestParam("doc_root"))
     , webboxName(m_GetRequestParam("WEBBOX_NAME"))
     , webboxReadOnly(m_GetRequestParam("WEBBOX_READONLY") == "1")
     , webboxStaticHtml(m_GetRequestParam("WEBBOX_STATIC_HTML"))
+    , m_rootdir(m_GetRequestParam("plugin_path"))
+    , paramHash(ParseQueryString(GetRequestParam("rel_target"), webboxPath)) // rel_target contains query string
    {
     if (webboxStaticHtml == "")
      webboxStaticHtml = STATIC_HTML_DOC_ROOT;
@@ -327,6 +332,7 @@ protected:
 // Retrieve from Server:
 //   Title
 //   ReadOnly flag
+//   Root directory: Where in the HTTP URL is the webbox root located, e.g. /webbox1
 class ServerInfoCommand: public GetCommand
 {
 public:
@@ -344,6 +350,8 @@ protected:
   pt::ptree tree;
   tree.put("serverinfo.title", p.webboxName);
   tree.put("serverinfo.readonly", p.webboxReadOnly ? "1" : "0");
+  tree.put("serverinfo.rootdir", p.m_rootdir);
+  tree.put("serverinfo.currentdir", p.m_pathInfo);
   std::ostringstream ss;
   pt::xml_parser::write_xml(ss, tree);
   return ss.str();
@@ -400,6 +408,7 @@ protected:
  }
 };
 
+// Info about single or multiple files
 class InfoCommand: public PostCommand
 {
 public:
@@ -838,8 +847,10 @@ protected:
  virtual std::string start(CommandParameters& p)
  {
   // redirect to xyz/ if xyz was requested
-  std::string target = p.m_GetRequestParam("target");
-  if (p.m_pathInfo == "" && !target.empty() && target.back() != '/') {
+  std::string target { p.m_GetRequestParam("target") };
+  if (!target.empty() && target.back() != '/' &&
+      (p.m_pathInfo.empty() || (fs::exists(p.webboxPath + "/" + p.m_pathInfo) && fs::is_directory(p.webboxPath + "/" + p.m_pathInfo))))
+  {
    p.m_SetResponseHeader("location", target + "/");
    return HttpStatus("301", "Use correct index: /"s, p);
   } 
@@ -847,10 +858,12 @@ protected:
   try {
 
    fs::path file_path;
-   if (p.m_pathInfo == "/" || p.m_pathInfo == "") {
+   if (p.m_pathInfo.empty() || p.m_pathInfo.back() == '/') {
     file_path = p.webboxStaticHtml / "index.html";
    } else if (boost::algorithm::starts_with(p.m_pathInfo, STATIC_HTML_TARGET)) {
     file_path = p.webboxStaticHtml / p.m_pathInfo.substr(STATIC_HTML_TARGET.size());
+   } else if (boost::algorithm::contains(p.m_pathInfo, "/"s + STATIC_HTML_TARGET)) {
+    file_path = p.webboxStaticHtml / p.m_pathInfo.substr(p.m_pathInfo.find("/"s + STATIC_HTML_TARGET) + STATIC_HTML_TARGET.size() + 1);
    } else {
     return HttpStatus("500", "Bad request: "s + p.m_pathInfo, p);
    }