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! Copyright (c) 2021 Approximatrix, LLC <support@approximatrix.com>
!
! Permission is hereby granted, free of charge, to any person obtaining a copy
! of this software and associated documentation files (the "Software"), to deal
! in the Software without restriction, including without limitation the rights
! to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
! copies of the Software, and to permit persons to whom the Software is
! furnished to do so, subject to the following conditions:
!
! The above copyright notice and this permission notice shall be included in
! all copies or substantial portions of the Software.
!
! The Software shall be used for Good, not Evil.
!
! THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
! IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
! FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
! AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
! LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
! OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
! SOFTWARE.
module api_handling
use iso_c_binding
implicit none
character(*), parameter::RESPONSE_JSON_IDLE = '{"status": "idle"}'
character(*), parameter::RESPONSE_JSON_WORK_AVAILABLE = &
'{"status": "pending",'//c_new_line//' "job": {job_number},'//c_new_line//' "instruction": "{instruction_name}"}'
contains
function build_job_available_json(job_id) result(json_text)
use captain_db
use utilities, only: replace_field
implicit none
integer, intent(in)::job_id
character(len=:), pointer::json_text
integer::instruction_id
character(PLAYER_NAME_LENGTH)::instruction_name
instruction_id = get_job_instruction(job_id)
call get_instruction_name(instruction_id, instruction_name)
allocate(character(len=(len(RESPONSE_JSON_WORK_AVAILABLE)+len_trim(instruction_name)+32)) :: json_text)
json_text = RESPONSE_JSON_WORK_AVAILABLE
call replace_field(json_text, "job_number", job_id)
call replace_field(json_text, "instruction_name", instruction_name)
end function build_job_available_json
subroutine handle_task_request(req)
use server_response
use captain_db
use logging
implicit none
class(request)::req
integer::job_i, task_i
if(associated(req%query_string)) then
job_i = req%path_component_int(5)
task_i = req%path_component_int(7)
call write_log("Task Update Is "//trim(req%query_string), LOG_DEBUG)
if(req%query_string == "starting") then
call write_log("Inserting task", LOG_DEBUG)
call insert_task(job_i, task_i)
call update_job_status(job_i, JOB_STATUS_WORKING)
else if(req%query_string == "inprogress") then
call update_task_status(job_i, task_i, JOB_STATUS_WORKING)
call update_job_status(job_i, JOB_STATUS_WORKING)
else if(req%query_string == "complete") then
call update_task_status(job_i, task_i, JOB_STATUS_SUCCESS)
else if(req%query_string == "failed") then
call update_task_status(job_i, task_i, JOB_STATUS_FAILURE)
end if
end if
end subroutine handle_task_request
function api_request_gemini(req) result(resp)
use server_response
use captain_db
use special_filenames
use logging
implicit none
type(request), intent(in)::req
type(response)::resp
character(PLAYER_NAME_LENGTH)::player, instruction
integer::job_i, player_i
character(len=:), pointer::checkin_work_json
! Complete - "/api/player/{name}/job/{jobid}/complete"
! Failed - "/api/player/{name}/job/{jobid}/failed"
! Task - "/api/player/{name}/job/{jobid}/task/{task num}"
if(trim(req%component(2)) == "player" .and. trim(req%component(4)) == "job") then
job_i = req%path_component_int(5)
call write_log("Job "//trim(req%component(5))//" update arrived", LOG_INFO)
write(player, *) job_i
if(.not. is_final_job_status(job_i)) then
if(trim(req%component(6)) == "complete") then
call update_job_status(job_i, JOB_STATUS_SUCCESS)
else if(trim(req%component(6)) == "failure") then
call update_job_status(job_i, JOB_STATUS_FAILURE)
end if
end if
if(trim(req%component(6)) == "task") then
call write_log("Task update encountered", LOG_INFO)
call handle_task_request(req)
end if
resp%code = GEMINI_CODE_SUCCESS
call resp%set_body_contents(RESPONSE_JSON_OKAY)
resp%body_mimetype = "text/plain"
! Checkin - /api/player/{name}/checkin.json
else if(trim(req%component(2)) == "player" .and. trim(req%component(4)) == "checkin.json") then
! Check for pending jobs
call req%path_component(3, player)
player_i = get_player_id(player)
! If we have a checkin, but the worker should have a job in progress, mark
! the jobs as failed.
call mark_working_jobs_as_failed(player_i)
job_i = get_pending_job_for_player(player_i)
if(job_i < 0) then
resp%code = GEMINI_CODE_SUCCESS
call resp%set_body_contents(RESPONSE_JSON_IDLE)
else
checkin_work_json => build_job_available_json(job_i)
if(associated(checkin_work_json)) then
resp%code = GEMINI_CODE_SUCCESS
call write_log("Sending: "//trim(checkin_work_json), LOG_DEBUG)
call resp%set_body_contents(trim(checkin_work_json), "text/gemini")
deallocate(checkin_work_json)
else
resp%code = GEMINI_CODE_PERMFAIL
end if
end if
! Instruction - /api/instructions/{name}
else if(trim(req%component(2)) == "instruction") then
call req%path_component(3, instruction)
resp%body_filename => get_special_full_filename("instructions", trim(instruction)//".json")
if(associated(resp%body_filename)) then
resp%temporary_file = .false.
resp%code = GEMINI_CODE_SUCCESS
resp%body_mimetype = "text/plain"
else
resp%code = GEMINI_CODE_PERMFAIL
end if
end if
end function api_request_gemini
function api_request_titan(req) result(resp)
use server_response
use special_filenames
use logging
implicit none
type(titan_request), intent(in)::req
type(response)::resp
character(len=:), pointer::fullpath
character(12)::job_text, task_text
integer::job_id, task_num
character(64)::msg
fullpath => null()
call write_log("Titan request encountered", LOG_INFO)
! Task - "/api/player/{name}/job/{jobid}/task/{task num}"
if(trim(req%component(2)) == "player" .and. &
trim(req%component(4)) == "job" .and. &
trim(req%component(6)) == "task") then
job_id = req%path_component_int(5)
task_num = req%path_component_int(7)
write(job_text, '(I6)') job_id
write(task_text, '(I6)') task_num
call write_log("Handling a task update for job "//trim(job_text)//" task "//trim(task_text), LOG_INFO)
call handle_task_request(req)
fullpath => get_task_result_static_filename(job_id, task_num)
end if
if(associated(fullpath)) then
! Write the file
call write_log("Storing titan file to "//trim(fullpath), LOG_DEBUG)
call req%write_to(fullpath)
resp%code = GEMINI_CODE_SUCCESS
call resp%set_body_contents(RESPONSE_JSON_OKAY)
resp%body_mimetype = "text/plain"
else
resp%code = GEMINI_CODE_PERMFAIL
end if
end function api_request_titan
end module api_handling
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