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This commit is contained in:
Guillermo Bonet 2022-11-04 14:41:36 +01:00
commit e1c6e32860
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node_modules

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node_modules
config.local.yml

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#FROM debian:bullseye-slim
FROM ubuntu:18.04
ENV TZ Europe/Madrid
RUN apt-get update \
&& apt-get install -y --no-install-recommends \
cups \
curl \
ca-certificates \
sudo
RUN curl -fsSL https://deb.nodesource.com/setup_14.x | sudo -E bash - \
&& apt install -y nodejs \
&& rm -rf /var/lib/apt/lists/*
WORKDIR /pdf-print-server
COPY \
package.json \
package-lock.json \
./
RUN npm install
COPY cupsd.conf /etc/cups/
COPY \
main.js \
print-server.js \
config.yml \
service.js \
entrypoint.sh \
./
COPY sql sql
COPY tmp tmp
COPY GoDEXdriver-1.1.6.tar.gz /tmp/
RUN (cd /tmp && tar -xf /tmp/GoDEXdriver-1.1.6.tar.gz) \
&& chmod a+x /tmp/GoDEXdriver-1.1.6/install-driver \
&& (cd /tmp/GoDEXdriver-1.1.6 && ./install-driver)
RUN echo 'root:1234' | chpasswd
ENTRYPOINT ["/pdf-print-server/entrypoint.sh"]
CMD ["node", "main.js"]

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# Comandos a tener en cuenta
## Instalar el servicio CUPS
```
apt update
apt install cups
```
## Iniciar el servicio CUPS
```
service cups start
```
## Instalar una impresora en red
```
lpadmin -p {nombre-impresora} -E -v socket://{ip-address} -m {driver}
```
## Imprimir un documento en una impresora
```
lp /app/labelCollection.pdf
```
-d (param) ➜ Indica la impresora, por defecto la predeterminada.\
-n (param) ➜ Indica el número de copias.\
-o (param) ➜ Indica el media.
## Buscar un driver los repositorios
```
lpinfo --make-and-model '{modelo-impresora}' -m
```
## Ver impresoras instaladas
```
lpstat -p
```
## Eliminar una impresora instalada
```
lpadmin -x {impresora}
```
# Lista de drivers:
## ZEBRA
### - Generic:
```
drv:///sample.drv/zebra.ppd (poner *-o landscape* al imprimir)
```
## RICOH
### - MP C2011
```
gutenprint.5.3://ricoh-mp_c2011/expert
```
## GODEX
Installation
```
apt install build-essential
apt install libcups2-dev
```
```
./configure
make
make install
make clean
```
### - ZX420i
```
lsb/local/godex/godex-zx420i.ppd
```

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debug: true
db:
host: localhost
port: 3306
user: user
password: password
database: schema
salix:
url: http://localhost:3000
user: user
password: password
reconnectTimeout: 30
refreshRate: 1000

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#
# Configuration file for the CUPS scheduler. See "man cupsd.conf" for a
# complete description of this file.
#
# Log general information in error_log - change "warn" to "debug"
# for troubleshooting...
LogLevel warn
PageLogFormat
# Deactivate CUPS' internal logrotating, as we provide a better one, especially
# LogLevel debug2 gets usable now
MaxLogSize 0
ServerAlias *
# Only listen for connections from the local machine.
Listen 172.17.0.3:631
Listen /run/cups/cups.sock
# Show shared printers on the local network.
Browsing On
BrowseLocalProtocols dnssd
# Default authentication type, when authentication is required...
DefaultAuthType Basic
DefaultEncryption IfRequested
# Web interface setting...
WebInterface Yes
# Restrict access to the server...
<Location />
Order allow,deny
Allow all
</Location>
# Restrict access to the admin pages...
<Location /admin>
Order allow,deny
Allow all
</Location>
# Restrict access to configuration files...
<Location /admin/conf>
#AuthType Default
#Require user @SYSTEM
Order allow,deny
Allow all
</Location>
# Restrict access to log files...
<Location /admin/log>
#AuthType Default
#Require user @SYSTEM
Order allow,deny
Allow all
</Location>
# Set the default printer/job policies...
<Policy default>
# Job/subscription privacy...
JobPrivateAccess default
JobPrivateValues default
SubscriptionPrivateAccess default
SubscriptionPrivateValues default
# Job-related operations must be done by the owner or an administrator...
<Limit Create-Job Print-Job Print-URI Validate-Job>
Order deny,allow
</Limit>
<Limit Send-Document Send-URI Hold-Job Release-Job Restart-Job Purge-Jobs Set-Job-Attributes Create-Job-Subscription Renew-Subscription Cancel-Subscription Get-Notifications Reprocess-Job Cancel-Current-Job Suspend-Current-Job Resume-Job Cancel-My-Jobs Close-Job CUPS-Move-Job CUPS-Get-Document>
#Require user @OWNER @SYSTEM
Order deny,allow
</Limit>
# All administration operations require an administrator to authenticate...
<Limit CUPS-Add-Modify-Printer CUPS-Delete-Printer CUPS-Add-Modify-Class CUPS-Delete-Class CUPS-Set-Default CUPS-Get-Devices>
#AuthType Default
Require user @SYSTEM
Order deny,allow
Allow all
</Limit>
# All printer operations require a printer operator to authenticate...
<Limit Pause-Printer Resume-Printer Enable-Printer Disable-Printer Pause-Printer-After-Current-Job Hold-New-Jobs Release-Held-New-Jobs Deactivate-Printer Activate-Printer Restart-Printer Shutdown-Printer Startup-Printer Promote-Job Schedule-Job-After Cancel-Jobs CUPS-Accept-Jobs CUPS-Reject-Jobs>
#AuthType Default
Require user @SYSTEM
Order deny,allow
</Limit>
# Only the owner or an administrator can cancel or authenticate a job...
<Limit Cancel-Job CUPS-Authenticate-Job>
Require user @OWNER @SYSTEM
Order deny,allow
</Limit>
<Limit All>
Order deny,allow
</Limit>
</Policy>
# Set the authenticated printer/job policies...
<Policy authenticated>
# Job/subscription privacy...
JobPrivateAccess default
JobPrivateValues default
SubscriptionPrivateAccess default
SubscriptionPrivateValues default
# Job-related operations must be done by the owner or an administrator...
<Limit Create-Job Print-Job Print-URI Validate-Job>
#AuthType Default
Order deny,allow
</Limit>
<Limit Send-Document Send-URI Hold-Job Release-Job Restart-Job Purge-Jobs Set-Job-Attributes Create-Job-Subscription Renew-Subscription Cancel-Subscription Get-Notifications Reprocess-Job Cancel-Current-Job Suspend-Current-Job Resume-Job Cancel-My-Jobs Close-Job CUPS-Move-Job CUPS-Get-Document>
#AuthType Default
Require user @OWNER @SYSTEM
Order deny,allow
</Limit>
# All administration operations require an administrator to authenticate...
<Limit CUPS-Add-Modify-Printer CUPS-Delete-Printer CUPS-Add-Modify-Class CUPS-Delete-Class CUPS-Set-Default>
#AuthType Default
Require user @SYSTEM
Order deny,allow
</Limit>
# All printer operations require a printer operator to authenticate...
<Limit Pause-Printer Resume-Printer Enable-Printer Disable-Printer Pause-Printer-After-Current-Job Hold-New-Jobs Release-Held-New-Jobs Deactivate-Printer Activate-Printer Restart-Printer Shutdown-Printer Startup-Printer Promote-Job Schedule-Job-After Cancel-Jobs CUPS-Accept-Jobs CUPS-Reject-Jobs>
#AuthType Default
Require user @SYSTEM
Order deny,allow
</Limit>
# Only the owner or an administrator can cancel or authenticate a job...
<Limit Cancel-Job CUPS-Authenticate-Job>
#AuthType Default
Require user @OWNER @SYSTEM
Order deny,allow
</Limit>
<Limit All>
Order deny,allow
</Limit>
</Policy>
# Set the kerberized printer/job policies...
<Policy kerberos>
# Job/subscription privacy...
JobPrivateAccess default
JobPrivateValues default
SubscriptionPrivateAccess default
SubscriptionPrivateValues default
# Job-related operations must be done by the owner or an administrator...
<Limit Create-Job Print-Job Print-URI Validate-Job>
#AuthType Negotiate
Order deny,allow
</Limit>
<Limit Send-Document Send-URI Hold-Job Release-Job Restart-Job Purge-Jobs Set-Job-Attributes Create-Job-Subscription Renew-Subscription Cancel-Subscription Get-Notifications Reprocess-Job Cancel-Current-Job Suspend-Current-Job Resume-Job Cancel-My-Jobs Close-Job CUPS-Move-Job CUPS-Get-Document>
#AuthType Negotiate
Require user @OWNER @SYSTEM
Order deny,allow
</Limit>
# All administration operations require an administrator to authenticate...
<Limit CUPS-Add-Modify-Printer CUPS-Delete-Printer CUPS-Add-Modify-Class CUPS-Delete-Class CUPS-Set-Default>
#AuthType Default
Require user @SYSTEM
Order deny,allow
</Limit>
# All printer operations require a printer operator to authenticate...
<Limit Pause-Printer Resume-Printer Enable-Printer Disable-Printer Pause-Printer-After-Current-Job Hold-New-Jobs Release-Held-New-Jobs Deactivate-Printer Activate-Printer Restart-Printer Shutdown-Printer Startup-Printer Promote-Job Schedule-Job-After Cancel-Jobs CUPS-Accept-Jobs CUPS-Reject-Jobs>
#AuthType Default
Require user @SYSTEM
Order deny,allow
</Limit>
# Only the owner or an administrator can cancel or authenticate a job...
<Limit Cancel-Job CUPS-Authenticate-Job>
#AuthType Negotiate
Require user @OWNER @SYSTEM
Order deny,allow
</Limit>
<Limit All>
Order deny,allow
</Limit>
</Policy>

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#Build
docker build -t printserver .
#Exec
docker run -it --rm -v $PWD/config.local.yml:/pdf-print-server/config.local.yml:ro -p 80:631 printserver
#Bash
docker exec -i -t printserver bash

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entrypoint.sh Normal file
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#!/bin/bash
cupsd
#Printers
lpadmin -p labeler48 -E -v socket://10.1.11.48 -m GoDEX/godex-zx420i.ppd
exec $@

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const PrintServer = require('./print-server');
async function main() {
const printServer = new PrintServer();
await printServer.start();
process.on('SIGINT', async function() {
console.log('Got SIGINT.');
try {
await printServer.stop();
} catch (err) {
console.error(err);
}
process.exit();
});
}
main();

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22
package.json Normal file
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@ -0,0 +1,22 @@
{
"name": "pdf-print-server",
"version": "1.0.0",
"author": "Verdnatura Levante SL",
"description": "Print server",
"license": "GPL-3.0",
"dependencies": {
"axios": "^1.1.3",
"child_process": "^1.0.2",
"colors": "^1.4.0",
"deasync": "^0.1.28",
"fs": "^0.0.1-security",
"fs-extra": "^10.1.0",
"mysql2": "^2.3.3",
"path": "^0.12.7",
"require-yml": "^2.0.0"
},
"engines": {
"node": ">=14",
"npm": ">=8"
}
}

163
print-server.js Normal file
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const mysql = require('mysql2/promise');
const exec = require('child_process').exec;
const fs = require('fs-extra');
const path = require('path');
const colors = require('colors');
const axios = require('axios');
const yml = require('require-yml');
const selectQuery = fs.readFileSync(`sql/selectQueued.sql`).toString();
const jobArgsQuery = fs.readFileSync(`sql/jobArgs.sql`).toString();
const updateQuery = fs.readFileSync(`sql/updateState.sql`).toString();
const appDir = path.dirname(require.main.filename);
class PrintServer {
async start() {
let conf = yml(path.join(__dirname, 'config.yml'));
const localConfFile = path.join(__dirname, 'config.local.yml');
if (fs.existsSync(localConfFile))
conf = Object.assign({}, conf, yml(localConfFile));
this.conf = conf;
console.clear();
console.log(` ░░░▒▒▒▓▓▓███││ │ ${colors.bgCyan.black(' PDF Print Server ')} │ ││███▓▓▓▒▒▒░░░`)
console.log('');
await this.init();
}
async init() {
this.conn = await mysql.createConnection(this.conf.db);
this.conn.on('error', err => this.onDbError(err));
await this.getToken();
await this.poll();
}
async stop() {
await this.end();
}
async end() {
clearTimeout(this.pollTimeout);
await this.conn.end();
if (this.reconnectTimeout) {
clearTimeout(this.reconnectTimeout);
this.reconnectTimeout = null;
}
}
async getToken() {
let response = await axios.post(`${this.conf.salix.url}/api/Accounts/login`, {
user: this.conf.salix.user,
password: this.conf.salix.password
});
this.token = response.data.token
}
async onDbError(err) {
switch(err.code) {
case 'CONNECTION_CLOSE':
try {
await this.end();
} catch(e) {}
await this.reconnect();
break;
}
}
async reconnect() {
this.reconnectTimeout = null;
try {
await this.init();
} catch (err) {
this.reconnectTimeout = setTimeout(reconnect, this.conf.reconnectTimeout * 1000);
}
}
async poll() {
try {
await this.printJob();
} catch (err) {
console.error(err)
this.reconnect();
}
this.pollTimeout = setTimeout(() => this.poll(), this.conf.refreshRate);
}
async printJob() {
const conn = this.conn;
const conf = this.conf;
let printJob;
let jobId;
try {
await conn.beginTransaction();
[[printJob]] = await conn.query(selectQuery, 'LabelCollection');
if (!printJob) return;
jobId = printJob.id;
await conn.query(updateQuery, ['printing', null, jobId]);
await conn.commit();
} catch (err) {
conn.rollback();
throw err;
}
try {
const args = {};
const res = await conn.query(jobArgsQuery, jobId);
for (const row of res[0])
args[row.name] = row.value;
const response = await axios({
method: 'get',
url: `${conf.salix.url}/api/Tickets/${args.param}/collection-label?access_token=${this.token}`,
responseType: 'arraybuffer',
headers: {
'Content-Type': 'application/json',
'Accept': 'application/pdf'
}
});
const printer = printJob.printer;
const tmpFilePath = path.join(appDir, 'tmp', `${Math.random().toString(36).substring(7)}.pdf`);
await fs.writeFile(tmpFilePath, response.data, 'binary');
try {
await pExec(`lp -d "${printer}" "${tmpFilePath}"`);
} catch(err) {
await fs.unlink(tmpFilePath);
throw new Error(`The printer could not be accessed: ${printer}: ${err.message}`);
}
await conn.query(updateQuery, ['printed', null, jobId]);
if (conf.debug)
console.debug(`Document has been printed`, jobId, printer);
await fs.unlink(tmpFilePath);
} catch (err) {
switch(err.code) {
case 'ERR_BAD_REQUEST':
try {
await this.getToken();
} catch(err) {
console.error(err);
}
break;
}
await this.conn.query(updateQuery, ['error', err.message, jobId]);
throw new Error(`(${jobId}) ${err.message}`);
}
}
logError() {
console.log('[ERROR]'.red.bold, `(${id}) ${message}:`, param.red);
}
logMessage() {
console.log(' [OK]'.green.bold, `(${id}) ${message}:`, param.green);
}
}
module.exports = PrintServer;
function pExec(command) {
return new Promise(function(resolve, reject) {
exec(command, function(err, stdout, stderr) {
if (err) return reject(err);
resolve({stdout, stderr})
});
});
}

3
sql/jobArgs.sql Normal file
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SELECT `name`, `value`
FROM printQueueArgs
WHERE printQueueFk = ?

13
sql/selectQueued.sql Normal file
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SELECT pq.id,
r.name report,
p.name printer,
pqa.name arg,
pqa.value
FROM printQueue pq
JOIN report r ON r.id = pq.reportFk
JOIN printQueueArgs pqa ON pqa.printQueueFk = pq.id
LEFT JOIN printer p ON p.id = pq.printerFk
WHERE r.name = ?
AND statusCode = 'queued'
ORDER BY priorityFk ASC
LIMIT 1

4
sql/updateState.sql Normal file
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UPDATE vn.printQueue
SET statusCode = ?,
error = ?
WHERE id = ?