[Dockerapi] add pubsub handler for broadcasting in ha setup

data/Dockerfiles/dockerapi/modules/DockerApi.py

@@ -0,0 +1,486 @@
+import psutil
+import sys
+import re
+import time
+import json
+import asyncio
+import platform
+from datetime import datetime
+from fastapi import FastAPI, Response, Request
+
+class DockerApi:
+  def __init__(self, redis_client, sync_docker_client, async_docker_client, logger):
+    self.redis_client = redis_client
+    self.sync_docker_client = sync_docker_client
+    self.async_docker_client = async_docker_client
+    self.logger = logger
+
+    self.host_stats_isUpdating = False
+    self.containerIds_to_update = []
+
+  # api call: container_post - post_action: stop
+  def container_post__stop(self, request_json, **kwargs):
+    if 'container_id' in kwargs:
+      filters = {"id": kwargs['container_id']}
+    elif 'container_name' in kwargs:
+      filters = {"name": kwargs['container_name']}
+
+    for container in self.sync_docker_client.containers.list(all=True, filters=filters):
+      container.stop()
+
+    res = { 'type': 'success', 'msg': 'command completed successfully'}
+    return Response(content=json.dumps(res, indent=4), media_type="application/json")
+  # api call: container_post - post_action: start
+  def container_post__start(self, request_json, **kwargs):
+    if 'container_id' in kwargs:
+      filters = {"id": kwargs['container_id']}
+    elif 'container_name' in kwargs:
+      filters = {"name": kwargs['container_name']}
+
+    for container in self.sync_docker_client.containers.list(all=True, filters=filters):
+      container.start()
+
+    res = { 'type': 'success', 'msg': 'command completed successfully'}
+    return Response(content=json.dumps(res, indent=4), media_type="application/json")
+  # api call: container_post - post_action: restart
+  def container_post__restart(self, request_json, **kwargs):
+    if 'container_id' in kwargs:
+      filters = {"id": kwargs['container_id']}
+    elif 'container_name' in kwargs:
+      filters = {"name": kwargs['container_name']}
+
+    for container in self.sync_docker_client.containers.list(all=True, filters=filters):
+      container.restart()
+
+    res = { 'type': 'success', 'msg': 'command completed successfully'}
+    return Response(content=json.dumps(res, indent=4), media_type="application/json")
+  # api call: container_post - post_action: top
+  def container_post__top(self, request_json, **kwargs):
+    if 'container_id' in kwargs:
+      filters = {"id": kwargs['container_id']}
+    elif 'container_name' in kwargs:
+      filters = {"name": kwargs['container_name']}
+
+    for container in self.sync_docker_client.containers.list(all=True, filters=filters):
+      res = { 'type': 'success', 'msg': container.top()}
+      return Response(content=json.dumps(res, indent=4), media_type="application/json")
+  # api call: container_post - post_action: stats
+  def container_post__stats(self, request_json, **kwargs):
+    if 'container_id' in kwargs:
+      filters = {"id": kwargs['container_id']}
+    elif 'container_name' in kwargs:
+      filters = {"name": kwargs['container_name']}
+
+    for container in self.sync_docker_client.containers.list(all=True, filters=filters):
+      for stat in container.stats(decode=True, stream=True):
+        res = { 'type': 'success', 'msg': stat}
+        return Response(content=json.dumps(res, indent=4), media_type="application/json")
+  # api call: container_post - post_action: exec - cmd: mailq - task: delete
+  def container_post__exec__mailq__delete(self, request_json, **kwargs):
+    if 'container_id' in kwargs:
+      filters = {"id": kwargs['container_id']}
+    elif 'container_name' in kwargs:
+      filters = {"name": kwargs['container_name']}
+
+    if 'items' in request_json:
+      r = re.compile("^[0-9a-fA-F]+$")
+      filtered_qids = filter(r.match, request_json['items'])
+      if filtered_qids:
+        flagged_qids = ['-d %s' % i for i in filtered_qids]
+        sanitized_string = str(' '.join(flagged_qids))
+        for container in self.sync_docker_client.containers.list(filters=filters):
+          postsuper_r = container.exec_run(["/bin/bash", "-c", "/usr/sbin/postsuper " + sanitized_string])
+          return self.exec_run_handler('generic', postsuper_r)
+  # api call: container_post - post_action: exec - cmd: mailq - task: hold
+  def container_post__exec__mailq__hold(self, request_json, **kwargs):
+    if 'container_id' in kwargs:
+      filters = {"id": kwargs['container_id']}
+    elif 'container_name' in kwargs:
+      filters = {"name": kwargs['container_name']}
+
+    if 'items' in request_json:
+      r = re.compile("^[0-9a-fA-F]+$")
+      filtered_qids = filter(r.match, request_json['items'])
+      if filtered_qids:
+        flagged_qids = ['-h %s' % i for i in filtered_qids]
+        sanitized_string = str(' '.join(flagged_qids))
+        for container in self.sync_docker_client.containers.list(filters=filters):
+          postsuper_r = container.exec_run(["/bin/bash", "-c", "/usr/sbin/postsuper " + sanitized_string])
+          return self.exec_run_handler('generic', postsuper_r)
+  # api call: container_post - post_action: exec - cmd: mailq - task: cat
+  def container_post__exec__mailq__cat(self, request_json, **kwargs):
+    if 'container_id' in kwargs:
+      filters = {"id": kwargs['container_id']}
+    elif 'container_name' in kwargs:
+      filters = {"name": kwargs['container_name']}
+
+    if 'items' in request_json:
+      r = re.compile("^[0-9a-fA-F]+$")
+      filtered_qids = filter(r.match, request_json['items'])
+      if filtered_qids:
+        sanitized_string = str(' '.join(filtered_qids))
+
+        for container in self.sync_docker_client.containers.list(filters=filters):
+          postcat_return = container.exec_run(["/bin/bash", "-c", "/usr/sbin/postcat -q " + sanitized_string], user='postfix')
+        if not postcat_return:
+          postcat_return = 'err: invalid'
+        return self.exec_run_handler('utf8_text_only', postcat_return)
+  # api call: container_post - post_action: exec - cmd: mailq - task: unhold
+  def container_post__exec__mailq__unhold(self, request_json, **kwargs):
+    if 'container_id' in kwargs:
+      filters = {"id": kwargs['container_id']}
+    elif 'container_name' in kwargs:
+      filters = {"name": kwargs['container_name']}
+
+    if 'items' in request_json:
+      r = re.compile("^[0-9a-fA-F]+$")
+      filtered_qids = filter(r.match, request_json['items'])
+      if filtered_qids:
+        flagged_qids = ['-H %s' % i for i in filtered_qids]
+        sanitized_string = str(' '.join(flagged_qids))
+        for container in self.sync_docker_client.containers.list(filters=filters):
+          postsuper_r = container.exec_run(["/bin/bash", "-c", "/usr/sbin/postsuper " + sanitized_string])
+          return self.exec_run_handler('generic', postsuper_r)
+  # api call: container_post - post_action: exec - cmd: mailq - task: deliver
+  def container_post__exec__mailq__deliver(self, request_json, **kwargs):
+    if 'container_id' in kwargs:
+      filters = {"id": kwargs['container_id']}
+    elif 'container_name' in kwargs:
+      filters = {"name": kwargs['container_name']}
+
+    if 'items' in request_json:
+      r = re.compile("^[0-9a-fA-F]+$")
+      filtered_qids = filter(r.match, request_json['items'])
+      if filtered_qids:
+        flagged_qids = ['-i %s' % i for i in filtered_qids]
+        for container in self.sync_docker_client.containers.list(filters=filters):
+          for i in flagged_qids:
+            postqueue_r = container.exec_run(["/bin/bash", "-c", "/usr/sbin/postqueue " + i], user='postfix')
+            # todo: check each exit code
+          res = { 'type': 'success', 'msg': 'Scheduled immediate delivery'}
+          return Response(content=json.dumps(res, indent=4), media_type="application/json")        
+  # api call: container_post - post_action: exec - cmd: mailq - task: list
+  def container_post__exec__mailq__list(self, request_json, **kwargs):
+    if 'container_id' in kwargs:
+      filters = {"id": kwargs['container_id']}
+    elif 'container_name' in kwargs:
+      filters = {"name": kwargs['container_name']}
+
+    for container in self.sync_docker_client.containers.list(filters=filters):
+      mailq_return = container.exec_run(["/usr/sbin/postqueue", "-j"], user='postfix')
+      return self.exec_run_handler('utf8_text_only', mailq_return)
+  # api call: container_post - post_action: exec - cmd: mailq - task: flush
+  def container_post__exec__mailq__flush(self, request_json, **kwargs):
+    if 'container_id' in kwargs:
+      filters = {"id": kwargs['container_id']}
+    elif 'container_name' in kwargs:
+      filters = {"name": kwargs['container_name']}
+
+    for container in self.sync_docker_client.containers.list(filters=filters):
+      postqueue_r = container.exec_run(["/usr/sbin/postqueue", "-f"], user='postfix')
+      return self.exec_run_handler('generic', postqueue_r)
+  # api call: container_post - post_action: exec - cmd: mailq - task: super_delete
+  def container_post__exec__mailq__super_delete(self, request_json, **kwargs):
+    if 'container_id' in kwargs:
+      filters = {"id": kwargs['container_id']}
+    elif 'container_name' in kwargs:
+      filters = {"name": kwargs['container_name']}
+
+    for container in self.sync_docker_client.containers.list(filters=filters):
+      postsuper_r = container.exec_run(["/usr/sbin/postsuper", "-d", "ALL"])
+      return self.exec_run_handler('generic', postsuper_r)
+  # api call: container_post - post_action: exec - cmd: system - task: fts_rescan
+  def container_post__exec__system__fts_rescan(self, request_json, **kwargs):
+    if 'container_id' in kwargs:
+      filters = {"id": kwargs['container_id']}
+    elif 'container_name' in kwargs:
+      filters = {"name": kwargs['container_name']}
+
+    if 'username' in request_json:
+      for container in self.sync_docker_client.containers.list(filters=filters):
+        rescan_return = container.exec_run(["/bin/bash", "-c", "/usr/bin/doveadm fts rescan -u '" + request_json['username'].replace("'", "'\\''") + "'"], user='vmail')
+        if rescan_return.exit_code == 0:
+          res = { 'type': 'success', 'msg': 'fts_rescan: rescan triggered'}
+          return Response(content=json.dumps(res, indent=4), media_type="application/json")
+        else:
+          res = { 'type': 'warning', 'msg': 'fts_rescan error'}
+          return Response(content=json.dumps(res, indent=4), media_type="application/json")
+    if 'all' in request_json:
+      for container in self.sync_docker_client.containers.list(filters=filters):
+        rescan_return = container.exec_run(["/bin/bash", "-c", "/usr/bin/doveadm fts rescan -A"], user='vmail')
+        if rescan_return.exit_code == 0:
+          res = { 'type': 'success', 'msg': 'fts_rescan: rescan triggered'}
+          return Response(content=json.dumps(res, indent=4), media_type="application/json")
+        else:
+          res = { 'type': 'warning', 'msg': 'fts_rescan error'}
+          return Response(content=json.dumps(res, indent=4), media_type="application/json")
+  # api call: container_post - post_action: exec - cmd: system - task: df
+  def container_post__exec__system__df(self, request_json, **kwargs):
+    if 'container_id' in kwargs:
+      filters = {"id": kwargs['container_id']}
+    elif 'container_name' in kwargs:
+      filters = {"name": kwargs['container_name']}
+
+    if 'dir' in request_json:
+      for container in self.sync_docker_client.containers.list(filters=filters):
+        df_return = container.exec_run(["/bin/bash", "-c", "/bin/df -H '" + request_json['dir'].replace("'", "'\\''") + "' | /usr/bin/tail -n1 | /usr/bin/tr -s [:blank:] | /usr/bin/tr ' ' ','"], user='nobody')
+        if df_return.exit_code == 0:
+          return df_return.output.decode('utf-8').rstrip()
+        else:
+          return "0,0,0,0,0,0"
+  # api call: container_post - post_action: exec - cmd: system - task: mysql_upgrade
+  def container_post__exec__system__mysql_upgrade(self, request_json, **kwargs):
+    if 'container_id' in kwargs:
+      filters = {"id": kwargs['container_id']}
+    elif 'container_name' in kwargs:
+      filters = {"name": kwargs['container_name']}
+
+    for container in self.sync_docker_client.containers.list(filters=filters):
+      sql_return = container.exec_run(["/bin/bash", "-c", "/usr/bin/mysql_upgrade -uroot -p'" + os.environ['DBROOT'].replace("'", "'\\''") + "'\n"], user='mysql')
+      if sql_return.exit_code == 0:
+        matched = False
+        for line in sql_return.output.decode('utf-8').split("\n"):
+          if 'is already upgraded to' in line:
+            matched = True
+        if matched:
+          res = { 'type': 'success', 'msg':'mysql_upgrade: already upgraded', 'text': sql_return.output.decode('utf-8')}
+          return Response(content=json.dumps(res, indent=4), media_type="application/json")
+        else:
+          container.restart()
+          res = { 'type': 'warning', 'msg':'mysql_upgrade: upgrade was applied', 'text': sql_return.output.decode('utf-8')}
+          return Response(content=json.dumps(res, indent=4), media_type="application/json")
+      else:
+        res = { 'type': 'error', 'msg': 'mysql_upgrade: error running command', 'text': sql_return.output.decode('utf-8')}
+        return Response(content=json.dumps(res, indent=4), media_type="application/json")
+  # api call: container_post - post_action: exec - cmd: system - task: mysql_tzinfo_to_sql
+  def container_post__exec__system__mysql_tzinfo_to_sql(self, request_json, **kwargs):
+    if 'container_id' in kwargs:
+      filters = {"id": kwargs['container_id']}
+    elif 'container_name' in kwargs:
+      filters = {"name": kwargs['container_name']}
+
+    for container in self.sync_docker_client.containers.list(filters=filters):
+      sql_return = container.exec_run(["/bin/bash", "-c", "/usr/bin/mysql_tzinfo_to_sql /usr/share/zoneinfo | /bin/sed 's/Local time zone must be set--see zic manual page/FCTY/' | /usr/bin/mysql -uroot -p'" + os.environ['DBROOT'].replace("'", "'\\''") + "' mysql \n"], user='mysql')
+      if sql_return.exit_code == 0:
+        res = { 'type': 'info', 'msg': 'mysql_tzinfo_to_sql: command completed successfully', 'text': sql_return.output.decode('utf-8')}
+        return Response(content=json.dumps(res, indent=4), media_type="application/json")
+      else:
+        res = { 'type': 'error', 'msg': 'mysql_tzinfo_to_sql: error running command', 'text': sql_return.output.decode('utf-8')}
+        return Response(content=json.dumps(res, indent=4), media_type="application/json")
+  # api call: container_post - post_action: exec - cmd: reload - task: dovecot
+  def container_post__exec__reload__dovecot(self, request_json, **kwargs):
+    if 'container_id' in kwargs:
+      filters = {"id": kwargs['container_id']}
+    elif 'container_name' in kwargs:
+      filters = {"name": kwargs['container_name']}
+
+    for container in self.sync_docker_client.containers.list(filters=filters):
+      reload_return = container.exec_run(["/bin/bash", "-c", "/usr/sbin/dovecot reload"])
+      return self.exec_run_handler('generic', reload_return)
+  # api call: container_post - post_action: exec - cmd: reload - task: postfix
+  def container_post__exec__reload__postfix(self, request_json, **kwargs):
+    if 'container_id' in kwargs:
+      filters = {"id": kwargs['container_id']}
+    elif 'container_name' in kwargs:
+      filters = {"name": kwargs['container_name']}
+
+    for container in self.sync_docker_client.containers.list(filters=filters):
+      reload_return = container.exec_run(["/bin/bash", "-c", "/usr/sbin/postfix reload"])
+      return self.exec_run_handler('generic', reload_return)
+  # api call: container_post - post_action: exec - cmd: reload - task: nginx
+  def container_post__exec__reload__nginx(self, request_json, **kwargs):
+    if 'container_id' in kwargs:
+      filters = {"id": kwargs['container_id']}
+    elif 'container_name' in kwargs:
+      filters = {"name": kwargs['container_name']}
+
+    for container in self.sync_docker_client.containers.list(filters=filters):
+      reload_return = container.exec_run(["/bin/sh", "-c", "/usr/sbin/nginx -s reload"])
+      return self.exec_run_handler('generic', reload_return)
+  # api call: container_post - post_action: exec - cmd: sieve - task: list
+  def container_post__exec__sieve__list(self, request_json, **kwargs):
+    if 'container_id' in kwargs:
+      filters = {"id": kwargs['container_id']}
+    elif 'container_name' in kwargs:
+      filters = {"name": kwargs['container_name']}
+
+    if 'username' in request_json:
+      for container in self.sync_docker_client.containers.list(filters=filters):
+        sieve_return = container.exec_run(["/bin/bash", "-c", "/usr/bin/doveadm sieve list -u '" + request_json['username'].replace("'", "'\\''") + "'"])
+        return self.exec_run_handler('utf8_text_only', sieve_return)
+  # api call: container_post - post_action: exec - cmd: sieve - task: print
+  def container_post__exec__sieve__print(self, request_json, **kwargs):
+    if 'container_id' in kwargs:
+      filters = {"id": kwargs['container_id']}
+    elif 'container_name' in kwargs:
+      filters = {"name": kwargs['container_name']}
+
+    if 'username' in request_json and 'script_name' in request_json:
+      for container in self.sync_docker_client.containers.list(filters=filters):
+        cmd = ["/bin/bash", "-c", "/usr/bin/doveadm sieve get -u '" + request_json['username'].replace("'", "'\\''") + "' '" + request_json['script_name'].replace("'", "'\\''") + "'"]  
+        sieve_return = container.exec_run(cmd)
+        return self.exec_run_handler('utf8_text_only', sieve_return)
+  # api call: container_post - post_action: exec - cmd: maildir - task: cleanup
+  def container_post__exec__maildir__cleanup(self, request_json, **kwargs):
+    if 'container_id' in kwargs:
+      filters = {"id": kwargs['container_id']}
+    elif 'container_name' in kwargs:
+      filters = {"name": kwargs['container_name']}
+
+    if 'maildir' in request_json:
+      for container in self.sync_docker_client.containers.list(filters=filters):
+        sane_name = re.sub(r'\W+', '', request_json['maildir'])
+        vmail_name = request_json['maildir'].replace("'", "'\\''")
+        cmd_vmail = "if [[ -d '/var/vmail/" + vmail_name + "' ]]; then /bin/mv '/var/vmail/" + vmail_name + "' '/var/vmail/_garbage/" + str(int(time.time())) + "_" + sane_name + "'; fi"
+        index_name = request_json['maildir'].split("/")
+        if len(index_name) > 1:
+          index_name = index_name[1].replace("'", "'\\''") + "@" + index_name[0].replace("'", "'\\''")
+          cmd_vmail_index = "if [[ -d '/var/vmail_index/" + index_name + "' ]]; then /bin/mv '/var/vmail_index/" + index_name + "' '/var/vmail/_garbage/" + str(int(time.time())) + "_" + sane_name + "_index'; fi"
+          cmd = ["/bin/bash", "-c", cmd_vmail + " && " + cmd_vmail_index]
+        else:
+          cmd = ["/bin/bash", "-c", cmd_vmail]
+        maildir_cleanup = container.exec_run(cmd, user='vmail')
+        return self.exec_run_handler('generic', maildir_cleanup)
+  # api call: container_post - post_action: exec - cmd: rspamd - task: worker_password
+  def container_post__exec__rspamd__worker_password(self, request_json, **kwargs):
+    if 'container_id' in kwargs:
+      filters = {"id": kwargs['container_id']}
+    elif 'container_name' in kwargs:
+      filters = {"name": kwargs['container_name']}
+
+    if 'raw' in request_json:
+      for container in self.sync_docker_client.containers.list(filters=filters):
+        cmd = "/usr/bin/rspamadm pw -e -p '" + request_json['raw'].replace("'", "'\\''") + "' 2> /dev/null"
+        cmd_response = self.exec_cmd_container(container, cmd, user="_rspamd")
+
+        matched = False
+        for line in cmd_response.split("\n"):
+          if '$2$' in line:
+            hash = line.strip()
+            hash_out = re.search('\$2\$.+$', hash).group(0)
+            rspamd_passphrase_hash = re.sub('[^0-9a-zA-Z\$]+', '', hash_out.rstrip())
+            rspamd_password_filename = "/etc/rspamd/override.d/worker-controller-password.inc"
+            cmd = '''/bin/echo 'enable_password = "%s";' > %s && cat %s''' % (rspamd_passphrase_hash, rspamd_password_filename, rspamd_password_filename)
+            cmd_response = self.exec_cmd_container(container, cmd, user="_rspamd")
+            if rspamd_passphrase_hash.startswith("$2$") and rspamd_passphrase_hash in cmd_response:
+              container.restart()
+              matched = True
+        if matched:
+          res = { 'type': 'success', 'msg': 'command completed successfully' }
+          self.logger.info('success changing Rspamd password')
+          return Response(content=json.dumps(res, indent=4), media_type="application/json")
+        else:
+          self.logger.error('failed changing Rspamd password')
+          res = { 'type': 'danger', 'msg': 'command did not complete' }
+          return Response(content=json.dumps(res, indent=4), media_type="application/json")
+
+  # Collect host stats
+  async def get_host_stats(self, wait=5):
+    try:
+      system_time = datetime.now()
+      host_stats = {
+        "cpu": {
+          "cores": psutil.cpu_count(),
+          "usage": psutil.cpu_percent()
+        },
+        "memory": {
+          "total": psutil.virtual_memory().total,
+          "usage": psutil.virtual_memory().percent,
+          "swap": psutil.swap_memory()
+        },
+        "uptime": time.time() - psutil.boot_time(),
+        "system_time": system_time.strftime("%d.%m.%Y %H:%M:%S"),
+        "architecture": platform.machine()
+      }
+
+      await self.redis_client.set('host_stats', json.dumps(host_stats), ex=10)
+    except Exception as e:
+      res = {
+        "type": "danger",
+        "msg": str(e)
+      }
+
+    await asyncio.sleep(wait)
+    self.host_stats_isUpdating = False
+  # Collect container stats
+  async def get_container_stats(self, container_id, wait=5, stop=False):
+    if container_id and container_id.isalnum():
+      try:
+        for container in (await self.async_docker_client.containers.list()):
+          if container._id == container_id:
+            res = await container.stats(stream=False)
+
+            if await self.redis_client.exists(container_id + '_stats'):
+              stats = json.loads(await self.redis_client.get(container_id + '_stats'))
+            else:
+              stats = []
+            stats.append(res[0])
+            if len(stats) > 3:
+              del stats[0]
+            await self.redis_client.set(container_id + '_stats', json.dumps(stats), ex=60)
+      except Exception as e:
+        res = {
+          "type": "danger",
+          "msg": str(e)
+        }
+    else:
+      res = {
+        "type": "danger",
+        "msg": "no or invalid id defined"
+      }
+
+    await asyncio.sleep(wait)
+    if stop == True:
+      # update task was called second time, stop
+      self.containerIds_to_update.remove(container_id)
+    else:
+      # call update task a second time
+      await self.get_container_stats(container_id, wait=0, stop=True)
+
+  def exec_cmd_container(self, container, cmd, user, timeout=2, shell_cmd="/bin/bash"):
+    def recv_socket_data(c_socket, timeout):
+      c_socket.setblocking(0)
+      total_data=[]
+      data=''
+      begin=time.time()
+      while True:
+        if total_data and time.time()-begin > timeout:
+          break
+        elif time.time()-begin > timeout*2:
+          break
+        try:
+          data = c_socket.recv(8192)
+          if data:
+            total_data.append(data.decode('utf-8'))
+            #change the beginning time for measurement
+            begin=time.time()
+          else:
+            #sleep for sometime to indicate a gap
+            time.sleep(0.1)
+            break
+        except:
+          pass
+      return ''.join(total_data)
+      
+    try :
+      socket = container.exec_run([shell_cmd], stdin=True, socket=True, user=user).output._sock
+      if not cmd.endswith("\n"):
+        cmd = cmd + "\n"
+      socket.send(cmd.encode('utf-8'))
+      data = recv_socket_data(socket, timeout)
+      socket.close()
+      return data
+    except Exception as e:
+      self.logger.error("error - exec_cmd_container: %s" % str(e))
+      traceback.print_exc(file=sys.stdout)
+
+  def exec_run_handler(self, type, output):
+    if type == 'generic':
+      if output.exit_code == 0:
+        res = { 'type': 'success', 'msg': 'command completed successfully' }
+        return Response(content=json.dumps(res, indent=4), media_type="application/json")
+      else:
+        res = { 'type': 'danger', 'msg': 'command failed: ' + output.output.decode('utf-8') }
+        return Response(content=json.dumps(res, indent=4), media_type="application/json")
+    if type == 'utf8_text_only':
+      return Response(content=output.output.decode('utf-8'), media_type="text/plain")