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module server_response
integer, parameter::GEMINI_CODE_INPUT = 10
integer, parameter::GEMINI_CODE_SUCCESS = 20
integer, parameter::GEMINI_CODE_REDIRECT = 30
integer, parameter::GEMINI_CODE_PERMFAIL = 50
type :: response
integer::code
! Used for redirects
character(len=:), pointer::url => null()
! Used for inputs in gemini
character(len=:), pointer::message => null()
logical::temporary_file = .false.
character(len=:), pointer::body_filename => null()
character(len=64)::body_mimetype
contains
procedure :: destroy => response_destroy
procedure :: set_message => response_set_message
procedure :: set_url => response_set_url
end type
type :: request
character(len=:), pointer::url => null()
character(len=:), pointer::server => null()
character(len=:), pointer::protocol => null()
character(len=:), pointer::location => null()
character(len=:), pointer::query_string => null()
contains
procedure :: init => request_init
procedure :: destroy => request_destroy
procedure :: last_component => request_last_component
procedure :: path_component => request_component
procedure :: component => request_component_func
end type request
contains
subroutine request_init(self, str)
use logging
implicit none
class(request) :: self
character(*), intent(in)::str
integer::i, j, n
n = len_trim(str)
allocate(character(len=n) :: self%url)
self%url = trim(str)
call write_log("URL: "//self%url)
i = index(str, "://")
allocate(character(len=(i-1)) :: self%protocol)
self%protocol = str(1:i-1)
call write_log("Protocol: "//self%protocol)
i = i + 3
j = index(str(i:n), "/")
if(j <= 0) then
j = len_trim(str) + 1 - i
end if
allocate(character(len=(j-1)) :: self%server)
self%server = str(i:(i+j-1))
call write_log("Server: "//self%server//"|")
i = j+i-1
j = index(str, "?")
if(j == 0) then
if(n-i+1 == 0) then
allocate(character(len=1) :: self%location)
self%location = "/"
else
allocate(character(len=(n - i + 1)) :: self%location)
self%location = str(i:n)
end if
call write_log("Location: "//self%location)
else
allocate(character(len=(n-j)) :: self%query_string)
self%query_string = str(j+1:n)
call write_log("Query: "//self%query_string)
allocate(character(len=(j-i)) :: self%location)
self%location = str(i:j-1)
call write_log("Location: "//self%location)
end if
end subroutine request_init
subroutine request_component(self, i_component, res)
use logging
implicit none
class(request) :: self
integer, intent(in)::i_component
character(*), intent(out)::res
integer::i, j, i_last, n
res = " "
n = len_trim(self%location)
i_last = 0
j = 0
i = index(self%location, "/")
do while(i /= i_last .and. j < i_component)
j = j + 1
call write_log("RC: "//self%location(i:n))
i_last = i
i = index(self%location(i_last+1:n), "/")
i = i_last + i
end do
! Found
if(j == i_component) then
if(i == i_last) then
res = self%location(i_last+1:n)
call write_log("Last! "//trim(res))
else
res = self%location(i_last+1:i-1)
end if
end if
end subroutine request_component
function request_component_func(self, i) result(res)
implicit none
class(request) :: self
integer, intent(in)::i
character(128) :: res
res = " "
call self%path_component(i, res)
end function request_component_func
subroutine request_last_component(self, res)
implicit none
class(request) :: self
character(*), intent(out)::res
integer::i, n
n = len_trim(self%location)
if(n == 1) then
res = "/"
else
i = index(self%location, "/", back=.true.)
if(i == n) then
i = index(self%location(1:n-1), "/", back=.true.)
if(i > 0) then
res = self%location(i+1:n-1)
else
res = "/"
end if
else
res = self%location((i+1):n)
end if
end if
end subroutine request_last_component
subroutine request_destroy(self)
implicit none
class(request) :: self
if(associated(self%url)) then
deallocate(self%url)
end if
if(associated(self%server)) then
deallocate(self%server)
end if
if(associated(self%location)) then
deallocate(self%location)
end if
if(associated(self%query_string)) then
deallocate(self%query_string)
end if
if(associated(self%protocol)) then
deallocate(self%protocol)
end if
end subroutine request_destroy
subroutine response_destroy(resp)
implicit none
class(response)::resp
if(associated(resp%url)) then
deallocate(resp%url)
end if
if(associated(resp%message)) then
deallocate(resp%message)
end if
if(associated(resp%body_filename)) then
if(resp%temporary_file) then
call unlink(resp%body_filename)
end if
deallocate(resp%body_filename)
end if
end subroutine response_destroy
subroutine response_set_message(resp, str)
implicit none
class(response)::resp
character(*), intent(in)::str
if(len_trim(str) > 0) then
allocate(character(len=len_trim(str)) :: resp%message)
resp%message = trim(str)
end if
end subroutine response_set_message
subroutine response_set_url(resp, str)
implicit none
class(response)::resp
character(*), intent(in)::str
if(len_trim(str) > 0) then
allocate(character(len=len_trim(str)) :: resp%url)
resp%url = trim(str)
end if
end subroutine response_set_url
end module server_response
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