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module gemini
implicit none
contains
subroutine read_request(ssl, req)
use jessl, only: ssl_read
use iso_c_binding
implicit none
type(c_ptr)::ssl
character(*), intent(out)::req
character, dimension(64)::buf
integer::bufread
integer::i, j
req = " "
i = 1
bufread = ssl_read(ssl, buf)
do while(bufread > 0)
do j = 1, bufread
if(buf(j) == c_new_line) then
exit
end if
if(buf(j) /= c_carriage_return) then
req(i:i) = buf(j)
i = i + 1
end if
end do
if(buf(j) == c_new_line) then
exit
end if
bufread = ssl_read(ssl, buf)
end do
end subroutine read_request
subroutine handle_request()
use jessl
use iso_c_binding
use config
use iso_fortran_env
implicit none
! For our TLS connection
type(c_ptr)::ctx
type(c_ptr)::method
type(c_ptr)::ssl
integer(kind=c_long)::res
! Requested file
character(1024)::request
character(512)::mimetype
call library_init()
method = tls_server_method()
ctx = ctx_new(method)
if(.not. C_ASSOCIATED(ctx)) then
call write_log("Context failed")
return
end if
! Seems to be a dummy now...
!res = ctx_set_ecdh_auto(ctx, 1)
if(.not. ctx_use_certificate_file(ctx, trim(pubcert), SSL_FILETYPE_PEM)) then
call write_log("Cert file failed")
call write_log("Public: "//trim(pubcert))
!call print_error()
return
end if
if(.not. ctx_use_private_key_file(ctx, trim(privcert), SSL_FILETYPE_PEM)) then
call write_log("Cert file failed")
call write_log("Private: "//trim(privcert))
!call print_error()
return
end if
ssl = ssl_new(ctx)
call write_log("Initiating connection")
! So this is a GNU Extension...
res = set_read_fd(ssl, fnum(input_unit))
if(res /= 1) then
call write_log("set rfd failed")
!call print_error()
return
end if
res = set_write_fd(ssl, fnum(output_unit))
if(res /= 1) then
call write_log("set wfd failed")
!call print_error()
return
end if
res = ssl_accept(ssl)
if(res <= 0) then
call write_log("ssl_accept failed")
!call print_error()
return
end if
call write_log("Handling read_request")
! Do the actual protocol nonsense
call read_request(ssl, request)
call write_log("Request is "//trim(request))
! If it ends in a slash, let's manually and silently add "index.gmi"
if(request(len_trim(request):len_trim(request)) == "/") then
request = trim(request)//"index.gmi"
end if
end subroutine handle_request
end module gemini
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