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4Minitz Admin Guide

Table of Content

Installation

Whats wrong with the 'Quick Installation' (Option 2)

The quick installation (Option 2) has the advantage that you don't have to install node and you don't have to mess with a MongoDB database, as both tools come with the meteor development tool as sub packages.

But while the quick installation mode is - well... - quick, it has some drawbacks:

  1. It uses meteor's own MongoDB where it sets up collections that are accessible to everyone who has shell access to the PC the database is running on. So, no login is needed to access the DB. Nevertheless as of this writing the DB port is not opened to the outside world. So, if you are the only person that can login to the machine - may be you are fine with this.
  2. The meteor tool is a development tool. Among many other things meteor watches the source files of 4Minitz and rebuilds on changes. This is great for developers. But it comes to the price of some extra need from RAM. Recent measurements showed, 4Minitz needs about 700 MB of RAM when launched via meteor vs. 90 MB of RAM when directly launched via node without meteor build support. So, if your (virtual?) machine has enough RAM - may be you are fine with this, too.

In all other cases - read on and choose the "Production Installation" way.

Production Server Setup with Docker

The 4Minitz docker image includes the compiled 4Minitz app, a fitting node.js version and MongoDB and thus has no external dependencies.

Docker Setup on Linux and Mac

  1. Install docker
  2. In a directory where you have write access run:
docker run -it --rm -v $(pwd)/4minitz_storage:/4minitz_storage -p 3100:3333 4minitz/4minitz

Omit the next section and continue with the section Use your 4minitz container.

Docker Setup on Windows

On Microsoft Windows 10 Professional or Enterprise 64-bit you can run 4minitz inside a docker container. The following snippets should be run inside a PowerShell (indicated by a PS> prompt) or a bash shell inside a Docker container (indicated by a root# prompt).

  1. Install docker

  2. Open up a PowerShell and pull the 4minitz image from the Docker hub

    PS> docker pull 4minitz/4minitz
  3. Create a container instance called 4minitz-storage

    PS> docker create -v /4minitz_storage --name 4minitz-storage 4minitz/4minitz
  4. If you want to edit the configuration, especially after updating your 4minitz images, you should do so in an up-to-date 4minitz container by spawning a bash shell into it. For now it suffices to simply start the volume container and edit the config file 4minitz_settings.json:

    PS> $docker = docker ps -q -l
    PS> docker start $docker
    PS> docker exec -ti $docker /bin/bash
    root# nano /4minitz_storage/4minitz_settings.json
    root# exit
    PS> docker stop $docker
  5. Now you can use this data volume container in a 4minitz container:

    PS> docker run -it --rm --volumes-from 4minitz-storage -p 3100:3333 4minitz/    4minitz

See this guide on how to backup and restore the data in your data volume container.

External MongoDB server with your 4Minitz docker container

Per default inside the 4Minitz docker container there also runs a MongoDB server that is configured in a way that it stores all data outside of the container: in the hosts 4minitz_storage directory.

Nevertheless there may be scenarios where you want to use an already existing MongoDB server and specify a 4Minitz sub-database there.

You may specify an external MongoDB server instead of the MongoDB inside the 4Minitz container by adding e.g.

-e MONGO_URL=mongodb://YOURMONGOSERVER:27017/4minitz

to your docker run command.

Attention: One of the biggest problems when using an external MongoDB server is that Docker by default creates a container network, so that a container can not connect e.g. to the launching host or other servers that the host can see.

For a comprehensive docker network documentation see here: https://docs.docker.com/engine/userguide/networking/

Two options to address the network issue:

I. Launch the MongoDB in a second docker container and use a fresh docker network to connect these two:

docker network create mynet
docker run --name mongodb --net mynet IMAGE
docker run --name 4minitz --net mynet IMAGE

II. Connect the 4Minitz container to the host network with the --network host switch

Hint: As external networking may be error prone, please ensure to shell into a 4Minitz container by adding /bin/bash to the end of your docker command line. Then try to ping your external MongoDB server. If this succeeds, you may try to launch 4Minitz with -e MONGO_URL.

Use your 4minitz Docker container

You can reach 4Minitz via the default port 3100 by opening http://localhost:3100 in your browser

The docker container will write all data to your local host machine into ./4minitz_storage outside of the container (Linux and Mac) or in your data volume container (Windows). Here you will find

  • 4minitz_settings.json - adapt server settings here. Then "Ctrl+c" and restart the 4Minitz container.
  • log - here are MongoDB and 4Minitz logs - if something does not work.
  • attachments - all attachments that have been uploaded to meeting minutes are stored here.
  • 4minitz_mongodb - MongoDB "--dbpath"

Updating your 4minitz Docker container

If a new version of 4Minitz is released, you may keep the above storage directory or data volume container. Simply Ctr+c the running container, and perform a docker pull 4minitz/4minitz. When you re-launch the container afterwards, all clients will get the new WebApp version automatically via meteors hot-code push.

Security Hints:

  1. The embedded mongoDB inside the docker container is not protected by user/password, so make sure nobody else is allowed to attach / exec commands to your running container
  2. The outside host directory ./4minitz_storage or docker volume container should only be read/write accessible by the 4minitz admin. Otherwise unauthorized users may see attachments, copy the database or change settings.json.
  3. Do not allow users to connect directly to your 4Minitz container. Instead configure a reverse proxy with TSL / https: to make sure that all traffic between client and server is encrypted.

Production Server by Building From Source

If you can not (or don't want to) use the ready-to-run docker image (see above), you can instead build and run your own 4Minitz server from source.

Prerequisites

C++11 compiler

As of version 1.4 meteor needs to build some binary npm packages during build phase. Make sure you have a C++11 compiler in your path, as this is needed by the node eco system of modules.

On MacOS make sure you have up-to-date XCode commandline installed. To do so launch gcc from the commandline. If it is not installed, it will tell you what to do.

On Linux perform a gcc --version should at least deliver a "4.8.x". If your gcc is older, consult your Linux distribution how-tos on how to upgrade. A good version switcher is update-alternatives.

Installation of Git

To obtain the sources you may download the current source ZIP from github.

But the prefered way is to clone the sources via git. So, make sure that git --version shows a version 2.x and produces no error on your machine. ;-)

Installation of Meteor

4minitz is realized with the Meteor JS Framework. So, to be able to build the sources in a runnable server, first install the current version of the meteor build tool:

curl https://install.meteor.com/ | sh
meteor --version

You'll need root rights for the above. As a non-root user you may install meteor by:

git git clone --depth 1 --recursive https://github.com/meteor/meteor.git
cd meteor
meteor --version

On Windows? Download the meteor installer.

Installation of MongoDB

After you installed meteor (see above), you should install and launch a separate MongoDB instance. Make sure you secure the access by username and password. This MongoDB instance may or may not be on the same machine as 4Minitz. There are lots of how-to on installing MongoDB out there.

As a first hint this might help:

mongod --dbpath=/path/to/my/datadirecotry

This should make the mongodb available on the default port 27017 so that the following mongo URL should work:

export MONGO_URL='mongodb://localhost:27017/'

Attention The above configuration does not enforce secure SSL communication to your mongodb. So if you run mongoDB and 4Minitz on different machines you should take a look at the MongoDB Transport Encryption doc. If the communication to your MongoDB is secured with SSL but you are using a certificate signed by a custom CA you may want to set up the NODE_EXTRA_CA_CERTS environment variable to prevent connection problems.

Attention The above configuration does not enforce users to log in. See the MongoDB Enable Auth doc for information on this topic.

Building and Running of 4Minitz

Note: The following steps assume you have no local node / npm installed. So, we use the meteor bundled node / npm for building and running 4Minitz. If you have a suited node / npm installed (as of this writing: Node 4.6.2 is needed), you may use npm instead of meteor npm and node instead of meteor node in the steps below.

Perform the following steps to build an run the 4Minitz server:

git clone --depth 1 https://github.com/4minitz/4minitz.git --branch master --single-branch

cd 4minitz
meteor npm install
# if the above fails, install node > v6.x and run 'npm install'
mkdir ../4minitz_bin
meteor build ../4minitz_bin --directory
cp settings_sample.json ../4minitz_bin/bundle/settings.json

cd ../4minitz_bin/bundle/programs/server
meteor npm install --production

cd ../..
nano settings.json

Now you should configure your settings.json to your needs.

Then set the following environment variables (where 27017 is the port where MongoDB listens and 61405 will be the port where 4Minitz will be reachable via web browser):

export MONGO_URL='mongodb://MONGOUSER:MONGOPASSWORD@localhost:27017/'
export PORT=61405
export ROOT_URL='http://4minitz.example.com:61405'
export METEOR_SETTINGS=$(cat ./settings.json)

Now, inside the /4minitz_bin/bundle/programs/server directory, you must launch the 4Minitz server:

meteor node main.js

Now, you should be able to reach your 4Minitz instance via:

http://localhost:61405
or
http://4minitz.example.com:61405

Configuration with settings.json

Take a look at settings_sample.json at the top level folder of 4Minitz. You may copy this file to settings.json and then edit its contents to your need.

If you already have a running production server as described above: don't forget to refresh changes of your settings.json into the environment variable: export METEOR_SETTINGS=$(cat ./settings.json). Then re-start your 4Minitz server with meteor node main.js.

How to become a frontend admin

Some frontend admin functionality can also be reached when you logged in to the 4Minitz frontend via your browser. Click the "Admin Tasks" nav bar menu entry to show possible options. On the admin view you may, for example:

  • Register new users for standard login. (Sorry, no LDAP registering!). When you filled all necessary fields, you can specify if the new user will receive a welcome eMail with her login credentials.
  • Show and filter all registered users
  • De/Activate user accounts. Inactive users will not be able to log in the the WebApp anymore. But their account is still visible in all finalized protocols. Nevertheless other users cannot invite inactive users to meetings or make inactive users responsible for an action item.
  • Send broadcast Messages to all users. E.g., you may send a warning if you do maintenance (backup, anybody?) to the 4Minitz server. You can (re-)broadcast, activate, remove broadcast messages. Or you may inform users of cool features of an updated version.

Multiple user accounts can be specified as frontend admin. To make 4Minitz recognize you as admin, enter your database user ID string to the settings.json key array adminIDs. For example:

"adminIDs": ["vwuhsQmghXSfqZ3f3", "5yEzZhQ6or44weojX"],

On server-side a restart of the server will log all admin account names to the server console.

But how do I find out my own user ID to make me admin?

First login to the frontend with a registered user account. Then you have two options:

  • either enter the following to your browser's JavaScript console: Meteor.userId() and press enter.

  • or open the 4Minitz About box and perform a mouse double click right after the text "About 4Minitz". Then your (previous invisible) user ID will show up selected - ready for copy & paste.

    About Box with selected user ID

Database configuration

Database related configuration is collected under the db object in your settings.json. These options are available:

  • mongodumpTargetDirectory: The output directory where 4minitz will store the database contents before the database schema is migrated (updated). If this is not set or empty no backup will be created.

Get informed about updates

The 4Minitz team will try to improve the 4Minitz code base. From time to time there may be also an important security fix. Per default your 4Minitz server will ask our master server regularly (about every 8 hrs.) what the current official stable version is. Your server will send your admin an eMail if your server found out such a newer version exists.

The update check will be active if...

  1. You did not disable the update check like so: updateCheck: false
  2. You properly configured sending of EMails & SMPT server (enableMailDelivery)
  3. You configured at least one admin ID (adminIDs) and the admin user has a valid mail address

Important Privacy Note The "new version" mail will be generated and sent to you by YOUR OWN 4Minitz server. Your personal data (like admin mail address) will newer leave your server.

Configuration for sending emails

You can send emails either via SMTP or mailgun. To enable email sending you have to provide your custom settings.json file where you have to define your SMTP settings or MailGun api key.

See /settings_sample.json for an example. Do not forget to set enableMailDelivery to true and set mailDeliverer to either mailgun or smtp - not both as seen in the example file!

If you enable the option trustedIntranetEvironment the finalize-info-email will be sent once with all recipients in the "TO:" field. This makes it easy for recipients to "Reply to all". But it may be a security hole in an untrusted environment. So, disable this option in public or demo mode!

The sender address in an email (FROM: and REPLY-TO:) will be set depending on

  • defaultEMailSenderAddress
  • fallbackEMailSenderAddress and
  • if the sending user has an email specified in her profile.

The following diagram will show the decision tree: Decision diagram for email sender

LDAP Configuration

Available configuration options

See your settings.json file:

Setting Default Explanation
enabled false Enables & disables LDAP login
propertyMap {username: 'cn', email: 'mail' } Map important attributes from ldap to user database
authentication {} Perform a bind before importing users from LDAP. Optional.
searchFilter "" Additional search filters, e.g. "(objectClass=inetOrgPerson)"
serverDn undefined Your server base dn, e.g. "dc=example,dc=com"
serverUrl undefined Server url, e.g. "ldaps://ldap.example.com:1234
whiteListedFields [] Attributes that are copied into the user's profile property
autopublishFields [] Meteor will publish these fields automatically on users
inactiveUsers {strategy: 'none'} Available strategies: 'none', 'userAccountControl' and 'property'. See below for details
allowSelfSignedTLS false If true, self-signed certs will be allowed for the Meteor server process
importOnLaunch true If true, server will import all LDAP users once at startup that match the searchFilter.
importCronTab false If set to a valid crontab string (e.g. "* 14 5 * * *" will run every day at 5:14 A.M.), then LDAP users will be imported regularly by the server process. Result is like calling the importsUser.js manually (see below). Syntax for crontab string see: crontab readme
hideStandardLogin false If you don't allow non-LDAP users (see forbidClientAccountCreation you may hide the standard login tab completely. So you avoid user confusion how to log in.
label4Username "Username (LDAP/AD)" Specify the username field's label in the login dialog to match your companies wording (e.g., "Windows Username" or "AD-Username e.g, Z0001234")
label4Password "Password" Specify the password field's label in the login dialog to match your companies wording (e.g., "Windows Password" or "Domain Password")

Once you have configured 4minitz to allow LDAP login, all your users should be able to login with their LDAP username & passwords. On first login of an LDAP user, this user (username & email address, user long names) are copied into the 4minitz user database. Password lookup happens over LDAP, so no passwords or hashes are stored for LDAP users in the 4minitz user database. This is needed to store e.g. user access rights for meeting minutes.

If the communication to your LDAP is secured with SSL and you are using a certificate signed by a custom CA you may want to set up the NODE_EXTRA_CA_CERTS environment variable to prevent connection problems.

Authentication

To perform a bind before importing users from LDAP you can provide a user dn and a password with the authentication property. E.g.

  "authentication": {
    "userDn": "cn=admin, ou=Admins, dc=example, dc=com",
    "password": "p@ssw0rd"
  }

Available strategies to detect inactive users

  • 'none': No attempts are made to detect inactive users. All users in your LDAP directory will be imported and will be able to login to 4minitz.
  • 'property': You can provide a key-value map in a property called 'properties'. If any of the ldap attributes that has the same value as the given value the user is considered to be inactive and won't be able to login to 4minitz.
  • 'userAccountControl': Checks the userAccountControl ldap attribute and sets the user to inactive if bit 2 of this flag is set. See MSDN for details.

Importing LDAP users to the 4minitz user database

All LDAP users that have logged in at least once will show up in the type-ahead drop down lists when inviting users to a meeting series or assigning topics or action items. Users that have never signed in won't show up in the type-ahead drop downs. If you want all users of your LDAP directory to show up in the type-ahead drop downs 4minitz comes with a handy import script.

importUsers.js

If you have configured and tested your LDAP settings in settings.json (i.e., users can log in via LDAP) you may import all user names and email addresses (not the password hashes!) from LDAP into the 4minitz user data base with the following script:

cd [path-to-4minitz]
node ./private/ldap/importUsers.js -s settings.json -m mongodb://localhost:3001/meteor

Note: if you run 4minitz on the default port 3000, then the mongoDB usually runs on the default port 3001 - otherwise adapt the mongo db port to your installation

It is OK to run the script multiple times, it only adds new users that are available in LDAP but not in 4minitz user database. If email addresses or user long names changed in LDAP for a given username, the script updates these fields in the 4minitz user database. The script never deletes any users from the 4minitz user database. Granted access right to meeting series or minutes are not changed on existing users by the importUsers.js script.

_Note: The LDAP setting "searchDn" and the the 4minitz user database field "username" are considered as primary key in the import step. But it is important to note that comparison is done case-insensitive as meteor considers no case on usernames during login.

Configuring upload of binary attachments

If this feature is switched on, users may upload binary attachments to a non-finalized meeting protocol. This is especially cool as users may login to the current meeting minutes with their smart phone, take a snapshot - e.g. of a filled white board - and then directly upload the photo to the current meeting minutes.

For detailed setting options for binary attachments take a look at the settings_sample.json section attachments. Here you can specify things like:

  • switch on/off the upload binary attachments feature
  • absolute or relative path to the stored files
  • allowed or denied file extensions
  • maximum file size per upload.

Some hints:

  • If the feature is switched off, it is not possible to upload, remove or download attachments via the webapp.
  • Users are not able to see or download attachments for meetings where they are not invited. Users are only able to upload attachments to meeting series where they have either the moderator or uploader role.
  • If you toggle the feature on => off no files will be deleted. So it's save to switch the feature off temporarily.
  • The file system path where attachments are stored may be relative or absolute. During launch the server will output the full path to your uploaded attachments directory. It is a good idea to put this path into you backup strategy.
  • Inside the attachments directory the files will be grouped by ID of the parent meeting series.
  • During launch the server will check if the attachment directory is writeable. If not, an error will occur in the server log. You know what to do here, right?
  • via allowExtensions and denyExtensions you can either allow all and deny some (e.g. *.exe) or you can allow only some (e.g. *.ppt) - in this case the deny pattern may be empty. These settings will only affect future uploads.
  • The maximum file size is specified in bytes and affects only future uploads. So a value of 10485760 will mean 10 MB (as 10 * 1024 * 1024 = 10485760).
  • If you want to find out how many attachments exist at all and how much storage space they occupy, you may open the server statistics at the client. Just open the about box and click on the 4Minitz logo to show/hide the server statistics.

Configuring protocol file generation (HTML, PDF, PDF/A)

By using this feature for each finalized minutes a protocol file is automatically generated and archived on the file system of the server for later download. There are three different file formats you can select of: HTML, PDF and PDF/A (2-B). PDF/A is an ISO standardized PDF subset for long-time archiving.

For the detailed settings options take a look at settings_sample.json section docGeneration.

A few additional hints:

  • Only the minutes finalized after the activation of this feature will generate a protocol. Previously finalized minutes will not have a protocol. Instead by clicking on the download button of these minutes you will be asked if you wish to dynamically generate a HTML protocol. This protocol is however only intended for downloading and will not be stored on the server.

  • The setting "pathToWkhtmltopdf" is only relevant for the formats PDF and PDF/A. In order to use these you have to install wkhtmltopdf from here: https://wkhtmltopdf.org/ After installing it you have to assign the full path to it's executable in your settings.json.

  • You can configure the PDF (and therefore the PDF/A) generation in various ways by using the command line switches of wkhtmltopdf, e.g. to define page margins or page numbering. You can add any desired switch by adding them to the property "wkhtmltopdfParameters" in your settings.json. For a full list of switches you may have a look here: https://wkhtmltopdf.org/usage/wkhtmltopdf.txt

  • The settings "pathToGhostscript", "pathToPDFADefinitionFile", and "ICCProfileType" only apply for the PDF/A format. To use these you first have to install ghostscript: https://www.ghostscript.com/download/ After this you will need to define a proper so called definition file for PDF/A generation. Ghostscript comes with one sample file you may usually find in "ghostscript/lib/PDFA_def". This file only needs one adjustment in order to be used for 4Minitz: You have to assign the path to a proper ICC Profile File on your local file system. You may use any ICC Profile based on the RGB or the CMYK colour scheme. After that is done you can assign the path to the ghostscript executable, the path to your definition file and the colour scheme of your ICC Profile to the respective settings.

Troubleshooting:

  • There is a known issue with wkhtmltopdf running on OS/X making the font to appear tiny. Therefore when using an Mac OS/X to host 4Minitz you should consider adding the following switches, which should solve this issue: "--dpi 380 --disable-smart-shrinking"
  • There is another issue with wkhtmltopdf appearing mainly on headless server: Since wkhtmltopdf needs an X server to run properly it may fail document generation with an error stating that "cannot connect to X server". In order to solve this you may follow the following steps.

Example: Enabling PDF/A protocol generation on Debian Jessie headless server

The Docker deployment has PDF/A protocol generation already enabled by default. If you are running a headless Linux server and you are not using docker, for educational purpose we provide a step-by-step guide on how to enable PDF/A protocol generation on Debian Jessie. Feel free to transform these steps to other distros.

In the example we assume that you put config stuff in /home/4min/ directory where you have write access and the running 4Minitz server has read access

sudo apt-get install -y xauth xvfb wkhtmltopdf ghostscript=9.06~dfsg-2+deb8u6

cp /usr/share/ghostscript/9.06/lib/PDFA_def.ps /home/4min/
cp /usr/share/ghostscript/9.06/iccprofiles/srgb.icc /home/4min/

sed -i 's/\/ICCProfile.*/\/ICCProfile \(\/srgb.icc\)/' /home/4min/PDFA_def.ps
sed -i 's/\[\ \/Title.*/\[\ \/Title\ \(4Minitz Meeting Minutes\)/' /home/4min/PDFA_def.ps

Some explanations:

  • As 4Minitz uses wkhtmltopdf to generate the raw PDFs, and this tool needs Qt and and X-Server, we need xauth & xvfb also. We later-on wkhtmltopdf as child process of xvfb-run
  • GhostScript is needed to convert raw PDF to PDF/A
  • We pin GhostScript to a specific version, so we can ensure that the cp commands for PDFA_def.ps find their source files.
  • Afterwards we patch the PDFA_def.ps file with a working color profile.

Now put this section in your settings.json:

"docGeneration": {
    "enabled": true, 
    "format": "pdfa",
    "targetDocPath": "/home/4min/files/protocols",
    "pathToWkhtmltopdf": "/usr/bin/xvfb-run",
    "wkhtmltopdfParameters": "--server-args=\"-screen 0, 1024x768x24\" /usr/bin/wkhtmltopdf --no-outline --print-media-type --no-background",
    "pathToGhostscript": "/usr/bin/gs",
    "pathToPDFADefinitionFile": "/home/4min/PDFA_def.ps",
    "ICCProfileType" : "CMYK"
}

When you now restart your 4Minitz server, finalized meeting minutes from now on should also be stored as PDF/A files on your server below the /home/4min/files/protocols directory.

For an in-depth documentation on GhostScripts PDF/A feature, see here: http://svn.ghostscript.com/ghostscript/trunk/gs/doc/Ps2pdf.htm#PDFA

Safety and Security

Safety and Backup

To ensure that you do not suffer from loss of data, make sure to backup your database and your static files directories.

Backup of MongoDB data

You may create a backup of your MongoDB database like so:

# Install the mongodb client tools (incl. mongodump)
mongodump -h 127.0.0.1 --port 3101 -d meteor
zip -r backup-4minitz-$(date +%Y-%m-%d_%H%M%S) ./dump

To restore a backup from a dump

meteor reset (if you run mongodb from meteor)
mongorestore --host 127.0.0.1 --port 3101 --drop ./dump/

Backup of uploaded attachments / generated documents

When your 4Minitz server launches it will print two absolute pathes for you, if you have attachments and document generation enabled. For example:

I20170924-12:52:32.302(2)? Attachments upload feature: ENABLED
I20170924-12:52:32.348(2)? attachmentsStoragePath:/home/4minzer/www/attachments_4mindev
I20170924-12:52:32.350(2)? Document generation feature: ENABLED
I20170924-12:52:32.350(2)? Document Storage Path: /home/4minzer/www/protocols_4mindev

Please ensure that these directories are included in your regular backups.

Security

Password security

4Minitz uses the meteor accounts-password package. According to the docs passwords are

  • Hashed on the client. And only the hash is transferred to the server
  • The server then uses salting and bcrypt2 to store the password in the user database.

So, the plain text password never leaves the client. This is good against curious admin eyes. But also the hashed password that is transferred to the server could allow a replay attack. So make sure your 4Minitz Server is only reachable via SSL!!! This is also a good idea to protect all other data content from curious eyes.

MongoDB security

If your MongoSB server is on the same machine as the 4Minitz server backend and you protected access to this server (firewall, no public logins), then maybe you are happy without adding credentials to MongoDB and without securing MongoDB via SSL.

In all other cases: Hints for a secure operation of your MongoDB server are explained in the chapter Installation of MongoDB.

See also: https://docs.mongodb.com/manual/tutorial/configure-ssl/

mongod --sslMode requireSSL --sslPEMKeyFile <pem> --sslCAFile <ca>
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