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module gemini_protocol
implicit none
integer, parameter::STATUS_INPUT = 1
integer, parameter::STATUS_SUCCESS = 2
integer, parameter::STATUS_REDIRECT = 3
integer, parameter::STATUS_TEMPFAIL = 4
integer, parameter::STATUS_PERMFAIL = 5
integer, parameter::STATUS_CERTREQ = 6
integer, parameter::STATUS_LOCALFAIL = -1
integer, parameter::BUFFER_SIZE = 256
contains
function request_url(url, unit_number, server_name) result(returncode)
use request
use iso_c_binding
implicit none
character(*), intent(in)::url
integer, intent(in)::unit_number
character(*), intent(in), optional::server_name
integer::returncode
character(:), allocatable::server
type(connection)::conn
integer::bytes_received, i
character, dimension(BUFFER_SIZE)::buffer
returncode = -1
rewind(unit_number)
if(present(server_name)) then
allocate(character(len=len_trim(server_name)) :: server)
server = server_name
else
server = get_server_from_url(url)
end if
conn = open_connection(server)
if(conn%code == CONNECTION_OPEN) then
if(send_string(conn%ssl, url//c_carriage_return//c_new_line, trimming=.false.)) then
bytes_received = retrieve_characters(conn%ssl, buffer)
do while(bytes_received > 0)
do i=1, bytes_received
write(unit_number, '(A1)', advance='no') buffer(i)
end do
bytes_received = retrieve_characters(conn%ssl, buffer)
end do
rewind(unit_number)
read(unit_number, '(I1)') returncode
else
returncode = -1
write(unit_number, *) "Send Error: Could Not Send Request"
end if
else
returncode = -1
write(unit_number, *) "Connection Error: "//trim(translate_connection_code(conn%code))
end if
call close_connection(conn)
end function request_url
end module gemini_protocol
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