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Selfhosted Transcription Service (#3753) 

* Added a simple selfhosted voicemail transcription API client

* Minor logging cleanup

* Add some string escaping to handle transcription providers

* Add JSON handling (optional) to selfhosted API
This commit is contained in:
danry25 2018-11-06 23:39:20 -08:00 committed by FusionPBX
parent c52e2d64a9
commit c452b9417f
1 changed files with 56 additions and 6 deletions
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50
resources/install/scripts/app/voicemail/resources/functions/record_message.lua
View File

@ -38,6 +38,22 @@
end)
end
--define escape function (prevents lua injection attacks)
local function esc(x)
return (x:gsub('%%', '%%%%')
:gsub('^%^', '%%^')
:gsub('%$$', '%%$')
:gsub('%(', '%%(')
:gsub('%)', '%%)')
:gsub('%.', '%%.')
:gsub('%[', '%%[')
:gsub('%]', '%%]')
:gsub('%*', '%%*')
:gsub('%+', '%%+')
:gsub('%-', '%%-')
:gsub('%?', '%%?'))
end
local function transcribe(file_path,settings,start_epoch)
--transcription variables
if (os.time() - start_epoch > 2) then
@ -105,6 +121,40 @@
return transcription;
end
end
if (transcribe_provider == "selfhosted") then
local transcription_server = settings:get('voicemail', 'transcription_server', 'text') or '';
local api_key = settings:get('voicemail', 'api_key', 'text') or '';
local json_enabled = settings:get('voicemail', 'json_enabled', 'boolean') or "false";
if (transcription_server ~= '') then
transcribe_cmd = "curl -X POST " .. transcription_server .. " -H 'Authorization: Bearer " .. api_key .. "' -F file=@"..file_path
local handle = io.popen(transcribe_cmd);
local transcribe_result = esc(handle:read("*a"));
handle:close();
if (debug["info"]) then
freeswitch.consoleLog("notice", "[voicemail] CMD: " .. transcribe_cmd .. "\n");
freeswitch.consoleLog("notice", "[voicemail] RESULT: " .. transcribe_result .. "\n");
end
--Trancribe request can fail
if (transcribe_result == '') then
freeswitch.consoleLog("notice", "[voicemail] TRANSCRIPTION: (null) \n");
return ''
end
if (json_enabled == "true") then
local transcribe_json = JSON.decode(transcribe_result);
if (transcribe_json["message"] == nil) then
freeswitch.consoleLog("notice", "[voicemail] TRANSCRIPTION: " .. transcribe_result .. "\n");
transcribe_result = '';
end
if (transcribe_json["error"] ~= nil) then
freeswitch.consoleLog("notice", "[voicemail] TRANSCRIPTION: " .. transcribe_result .. "\n");
transcribe_result = '';
end
transcribe_result = transcribe_json["message"];
end
return transcribe_result;
end
end
else
if (debug["info"]) then
freeswitch.consoleLog("notice", "[voicemail] message too short for transcription.\n");