FileService bug for directory option with trailing slash

[pdgendt]

Using the FileService with pion v5.0.7 and boost filesystem V3:

m_server.load_service("/resource", "FileService");
m_server.set_service_option("/resource", "directory", "/some/trailing/slash/path/");

Results in an unusable FileService. Because the FileService stores this path normalized which would be /some/trailing/slash/path/.

If some request is handled by the FileService the file path is constructed (see

pion/services/FileService.cpp

Line 146 in 96c8e45

file_path = m_directory / relative_path;

)

For example file index.html reconstructs to /some/trailing/slash/path/./index.html which later is normalized to /some/trailing/slash/path/index.html. The function then checks if the file is in the directory (with string::find) but fails because of the normalized resource directory (mind the extra dot there).

Also mind that boost::filesystem::path::normalize() is set to deprecated.