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Add. Lua part of fax_queue.
To poll active task you can run `luarun fax_queue_poll_once.lua`
This commit is contained in:
Alexey Melnichuk
223
resources/install/scripts/fax_queue/tasks.lua
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223
resources/install/scripts/fax_queue/tasks.lua
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@@ -0,0 +1,223 @@
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local Database = require "resources.functions.database"
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local Settings = require "resources.functions.lazy_settings"
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local db
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local Q850_TIMEOUT = {
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[17] = 60;
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}
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local select_task_common_sql = [[
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select
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t1.task_uuid as uuid,
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t1.fax_uuid as fax_uuid,
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t3.domain_name,
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t3.domain_uuid,
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t1.task_status as status,
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t1.task_uri as uri,
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t1.task_dial_string as dial_string,
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t1.task_dtmf as dtmf,
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t1.task_fax_file as fax_file,
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t1.task_wav_file as wav_file,
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t1.task_no_answer_counter as no_answer_counter,
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t1.task_no_answer_retry_counter as no_answer_retry_counter,
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t1.task_retry_counter as retry_counter,
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t2.fax_send_greeting as greeting
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from v_fax_tasks t1
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inner join v_fax t2 on t2.fax_uuid = t1.fax_uuid
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inner join v_domains t3 on t2.domain_uuid = t3.domain_uuid
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where t1.task_interrupted <> 'true'
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]]
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local next_task_sql = select_task_common_sql .. [[
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and t1.task_status = 0 and t1.task_next_time < NOW()
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and t2.fax_send_channels > (select count(*) from v_fax_tasks as tasks
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where tasks.fax_uuid = t1.fax_uuid and
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tasks.task_status > 0 and tasks.task_status <= 2
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)
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order by t1.task_next_time
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]]
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local select_task_sql = select_task_common_sql .. "and t1.task_uuid='%s'"
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local aquire_task_sql = [[
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update v_fax_tasks set task_status = 1, task_lock_time = NOW()
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where task_uuid = '%s' and task_status = 0
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]]
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local wait_task_sql = [[
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update v_fax_tasks
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set task_status = %s,
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task_lock_time = NULL,
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task_no_answer_counter = %s,
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task_no_answer_retry_counter = %s,
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task_retry_counter = %s,
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task_next_time = NOW() + interval '%s second'
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where task_uuid = '%s'
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]]
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local remove_task_task_sql = [[
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delete from v_fax_tasks
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where task_uuid = '%s'
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]]
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local release_task_sql = [[
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update v_fax_tasks
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set task_status = 0, task_lock_time = NULL,
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task_next_time = NOW() + interval '%s second'
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where task_uuid = '%s'
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]]
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local release_stuck_tasks_sql = [[
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update v_fax_tasks
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set task_status = 0, task_lock_time = NULL,
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task_next_time = NOW()
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where task_lock_time < NOW() + interval '3600 second'
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]]
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local remove_finished_tasks_sql = [[
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delete from v_fax_tasks where task_status > 3
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]]
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local function get_db()
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if not db then
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db = assert(Database.new('system'))
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end
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return db
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end
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local function next_task()
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local db = get_db()
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while true do
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local task, err = db:first_row(next_task_sql)
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if not task then return nil, err end
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local ok, err = db:query( aquire_task_sql:format(task.uuid) )
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if not ok then return nil, err end
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if db:affected_rows() == 1 then
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task.no_answer_counter = tonumber(task.no_answer_counter)
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task.no_answer_retry_counter = tonumber(task.no_answer_retry_counter)
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task.retry_counter = tonumber(task.retry_counter)
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return task
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end
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end
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end
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local function select_task(task_uuid)
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local db = get_db()
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local task, err = db:first_row(select_task_sql:format(task_uuid))
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if not task then return nil, err end
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task.no_answer_counter = tonumber(task.no_answer_counter)
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task.no_answer_retry_counter = tonumber(task.no_answer_retry_counter)
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task.retry_counter = tonumber(task.retry_counter)
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return task
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end
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local function wait_task(task, answered, q850)
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local db = get_db()
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local interval = 30
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local settings = Settings.new(db, task.domain_name, task.domain_uuid)
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task.status = 0
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if not answered then
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interval = Q850_TIMEOUT[q850 or 17] or interval
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end
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if not answered then
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local fax_send_no_answer_retry_limit = tonumber(settings:get('fax', 'send_no_answer_retry_limit', 'numeric')) or 0
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task.no_answer_retry_counter = task.no_answer_retry_counter + 1
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if task.no_answer_retry_counter >= fax_send_no_answer_retry_limit then
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task.no_answer_retry_counter = 0
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task.no_answer_counter = task.no_answer_counter + 1
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local fax_send_no_answer_limit = tonumber(settings:get('fax', 'send_no_answer_limit', 'numeric')) or 0
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if task.no_answer_counter >= fax_send_no_answer_limit then
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task.status = 4
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else
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interval = tonumber(settings:get('fax', 'send_no_answer_interval', 'numeric')) or interval
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end
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else
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interval = tonumber(settings:get('fax', 'send_no_answer_retry_interval', 'numeric')) or interval
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end
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else
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task.retry_counter = task.retry_counter + 1
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local fax_send_retry_limit = tonumber(settings:get('fax', 'send_retry_limit', 'numeric')) or 0
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if task.retry_counter >= fax_send_retry_limit then
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task.status = 4
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else
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interval = tonumber(settings:get('fax', 'send_retry_interval', 'numeric')) or interval
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task.task_seq_call_counter = 0
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end
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end
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local sql = wait_task_sql:format(
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tostring(task.status),
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tostring(task.no_answer_counter),
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tostring(task.no_answer_retry_counter),
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tostring(task.retry_counter),
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tostring(interval),
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task.uuid
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)
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print(sql)
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local ok, err = db:query( sql )
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if not ok then return nil, err end
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return task
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end
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local function remove_task(task)
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local db = get_db()
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local sql = remove_task_task_sql:format(task.uuid)
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local ok, err = db:query( sql )
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if not ok then return nil, err end
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return db:affected_rows()
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end
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local function release_task(task)
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local db = get_db()
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local interval = 30
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local sql = release_task_sql:format(
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tostring(interval),
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task.uuid
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)
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local ok, err = db:query( sql )
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if not ok then return nil, err end
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return task
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end
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local function cleanup_tasks()
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local db = get_db()
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db:query(release_stuck_tasks_sql)
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db:query(remove_finished_tasks_sql)
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end
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return {
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release_db = function()
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if db then
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db:release()
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db = nil
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end
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end;
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next_task = next_task;
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wait_task = wait_task;
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select_task = select_task;
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remove_task = remove_task;
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release_task = release_task;
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cleanup_tasks = cleanup_tasks;
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}
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