Automatic Printing System with Open Source Tools

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2013/08/03 @ COSCUP 2013 Automatic Printing System with Open Source Tools Mosky 1

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This Slide ✤ This slide is available at: https://speakerdeck.com/mosky/automatic-printing-system-with- open-source-tools 2

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Mosky 3

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Mosky ✤ I am working at www.pinkoi.com . 3

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Mosky ✤ I am working at www.pinkoi.com . ✤ I've been using Ubuntu everyday since 2009. 3

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Mosky ✤ I am working at www.pinkoi.com . ✤ I've been using Ubuntu everyday since 2009. ✤ A speaker at PyCon TW 2013, 2012, PyCon JP 2012, ... 3

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Mosky ✤ I am working at www.pinkoi.com . ✤ I've been using Ubuntu everyday since 2009. ✤ A speaker at PyCon TW 2013, 2012, PyCon JP 2012, ... ✤ http://mosky.tw/ 3

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Outline 4

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Outline ✤ The Motivation 4

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Outline ✤ The Motivation ✤ Setup Printing System on Linux 4

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Outline ✤ The Motivation ✤ Setup Printing System on Linux ✤ Convert Web to PDF 4

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Outline ✤ The Motivation ✤ Setup Printing System on Linux ✤ Convert Web to PDF ✤ The Tips 4

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The Motivation 5

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It's just out of control! We have to issue more than 1,000 invoices per month. 6

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It's just out of control! We have to issue more than 1,000 invoices per month. 6

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We love hand-made stuff. Pinkoi is the largest online community and marketplace for designers in Asia 7

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We love hand-made stuff. Pinkoi is the largest online community and marketplace for designers in Asia 7

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So we build it for ourselves with many cups of coffee. 8

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So we build it for ourselves with many cups of coffee. 8

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Setup Printing System on Linux 9

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The Check List 10

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The Check List ✤ A computer installed Linux and CUPS (Common Unix Printing System). 10

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The Check List ✤ A computer installed Linux and CUPS (Common Unix Printing System). ✤ http://www.cups.org/ 10

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The Check List ✤ A computer installed Linux and CUPS (Common Unix Printing System). ✤ http://www.cups.org/ ✤ http://localhost:631/ 10

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The Check List ✤ A computer installed Linux and CUPS (Common Unix Printing System). ✤ http://www.cups.org/ ✤ http://localhost:631/ ✤ A printer which has an IP address. 10

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The Check List ✤ A computer installed Linux and CUPS (Common Unix Printing System). ✤ http://www.cups.org/ ✤ http://localhost:631/ ✤ A printer which has an IP address. ✤ http://192.168.2.100/ 10

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Setup Printer with CUPS' Driver 11

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Setup Printer with CUPS' Driver ✤ Find the driver for your printer: 11

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Setup Printer with CUPS' Driver ✤ Find the driver for your printer: ✤ $ lpinfo --make-and-model 'P1006' -m 11

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Setup Printer with CUPS' Driver ✤ Find the driver for your printer: ✤ $ lpinfo --make-and-model 'P1006' -m ✤ drv:///hpijs.drv/hp-laserjet_p1006-hpijs.ppd HP LaserJet p1006 hpijs, 3.10.2, requires proprietary plugin ✤ Add the printer with the driver we found from the above command: ✤ $ lpadmin -E -p -v socket:// -m -E 11

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Setup Printer with PPD 12

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Setup Printer with PPD ✤ Find the PPD ﬁle for your printer: 12

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Setup Printer with PPD ✤ Find the PPD ﬁle for your printer: ✤ http://www.openprinting.org/drivers 12

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Setup Printer with PPD ✤ Find the PPD ﬁle for your printer: ✤ http://www.openprinting.org/drivers ✤ Put the PPD ﬁle in: 12

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Setup Printer with PPD ✤ Find the PPD ﬁle for your printer: ✤ http://www.openprinting.org/drivers ✤ Put the PPD ﬁle in: ✤ /usr/share/cups/model 12

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Setup Printer with PPD ✤ Find the PPD file for your printer: ✤ http://www.openprinting.org/drivers ✤ Put the PPD file in: ✤ /usr/share/cups/model ✤ Add the printer with this PPD file: 12

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Setup Printer with PPD ✤ Find the PPD file for your printer: ✤ http://www.openprinting.org/drivers ✤ Put the PPD file in: ✤ /usr/share/cups/model ✤ Add the printer with this PPD file: ✤ $ lpadmin -E -p -v lpd:///lp -m -E 12

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More about lpadmin 13

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More about lpadmin ✤ Enable a printer: 13

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More about lpadmin ✤ Enable a printer: ✤ $ lpadmin -p -E 13

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More about lpadmin ✤ Enable a printer: ✤ $ lpadmin -p -E ✤ Set a printer as default: 13

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More about lpadmin ✤ Enable a printer: ✤ $ lpadmin -p -E ✤ Set a printer as default: ✤ $ lpadmin -d 13

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More about lpadmin ✤ Enable a printer: ✤ $ lpadmin -p -E ✤ Set a printer as default: ✤ $ lpadmin -d ✤ Remove a printer: 13

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More about lpadmin ✤ Enable a printer: ✤ $ lpadmin -p -E ✤ Set a printer as default: ✤ $ lpadmin -d ✤ Remove a printer: ✤ $ lpadmin -x 13

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Check Printer is Online 14

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Check Printer is Online ✤ Just print a test ﬁle: 14

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Check Printer is Online ✤ Just print a test ﬁle: ✤ $ lpr -P 14

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Check Printer is Online ✤ Just print a test ﬁle: ✤ $ lpr -P ✤ Check the status of printer: 14

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Check Printer is Online ✤ Just print a test ﬁle: ✤ $ lpr -P ✤ Check the status of printer: ✤ $ lpstat -a / $ lpstat -t 14

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Check Printer is Online ✤ Just print a test ﬁle: ✤ $ lpr -P ✤ Check the status of printer: ✤ $ lpstat -a / $ lpstat -t ✤ Troubleshooting: 14

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Check Printer is Online ✤ Just print a test ﬁle: ✤ $ lpr -P ✤ Check the status of printer: ✤ $ lpstat -a / $ lpstat -t ✤ Troubleshooting: ✤ $ nc -v 14

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Check Printer is Online ✤ Just print a test ﬁle: ✤ $ lpr -P ✤ Check the status of printer: ✤ $ lpstat -a / $ lpstat -t ✤ Troubleshooting: ✤ $ nc -v ✤ $ nmap -p 14

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Convert Web to PDF 15

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The Packages 16

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The Packages ✤ Use wkhtmltopdf to convert Web to PDF. 16

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The Packages ✤ Use wkhtmltopdf to convert Web to PDF. ✤ $ sudo apt-get install wkhtmltopdf 16

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The Packages ✤ Use wkhtmltopdf to convert Web to PDF. ✤ $ sudo apt-get install wkhtmltopdf ✤ https://code.google.com/p/wkhtmltopdf/ 16

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The Packages ✤ Use wkhtmltopdf to convert Web to PDF. ✤ $ sudo apt-get install wkhtmltopdf ✤ https://code.google.com/p/wkhtmltopdf/ ✤ If you don't have X Window, you also need xvfb. 16

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The Packages ✤ Use wkhtmltopdf to convert Web to PDF. ✤ $ sudo apt-get install wkhtmltopdf ✤ https://code.google.com/p/wkhtmltopdf/ ✤ If you don't have X Window, you also need xvfb. ✤ $ sudo apt-get install xvfb 16

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The Usage 17

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The Usage ✤ with X Window: 17

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The Usage ✤ with X Window: ✤ $ wkhtmltopdf 17

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The Usage ✤ with X Window: ✤ $ wkhtmltopdf ✤ $ wkhtmltopdf -T 0 -L 0 -R 0 -B 0 --page-size A4 -- encoding utf-8 17

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The Usage ✤ with X Window: ✤ $ wkhtmltopdf ✤ $ wkhtmltopdf -T 0 -L 0 -R 0 -B 0 --page-size A4 -- encoding utf-8 ✤ without X window: 17

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The Usage ✤ with X Window: ✤ $ wkhtmltopdf ✤ $ wkhtmltopdf -T 0 -L 0 -R 0 -B 0 --page-size A4 -- encoding utf-8 ✤ without X window: ✤ $ xvfb-run -a -s "-screen 0 640x480x16" wkhtmltopdf -T 0 -L 0 -R 0 -B 0 --page-size A4 --encoding utf-8 17

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Send File to Printer 18

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Send File to Printer ✤ Print ﬁle: 18

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Send File to Printer ✤ Print ﬁle: ✤ $ lpr -P ... 18

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Send File to Printer ✤ Print ﬁle: ✤ $ lpr -P ... ✤ Show printer queue: 18

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Send File to Printer ✤ Print ﬁle: ✤ $ lpr -P ... ✤ Show printer queue: ✤ $ lpq -P 18

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Send File to Printer ✤ Print ﬁle: ✤ $ lpr -P ... ✤ Show printer queue: ✤ $ lpq -P ✤ $ lpq -a 18

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Send File to Printer ✤ Print ﬁle: ✤ $ lpr -P ... ✤ Show printer queue: ✤ $ lpq -P ✤ $ lpq -a ✤ Cancel print job: 18

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Send File to Printer ✤ Print ﬁle: ✤ $ lpr -P ... ✤ Show printer queue: ✤ $ lpq -P ✤ $ lpq -a ✤ Cancel print job: ✤ $ lprm -P ... 18

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PyCUPS 19

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PyCUPS ✤ PyPI 19

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PyCUPS ✤ PyPI ✤ https://pypi.python.org/pypi/pycups 19

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PyCUPS ✤ PyPI ✤ https://pypi.python.org/pypi/pycups ✤ Get connection: 19

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PyCUPS ✤ PyPI ✤ https://pypi.python.org/pypi/pycups ✤ Get connection: ✤ import cups conn = cups.Connection() 19

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PyCUPS - Get Printers 20

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PyCUPS - Get Printers ✤ Get printers: 20

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PyCUPS - Get Printers ✤ Get printers: ✤ conn.getPrinters() 20

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PyCUPS - Get Printers ✤ Get printers: ✤ conn.getPrinters() ✤ Example output: 20

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PyCUPS - Get Printers ✤ Get printers: ✤ conn.getPrinters() ✤ Example output: ✤ {u'hp': {'device-uri': u'lpd://192.168.0.100/lp', 'printer-info': u'hp', # 3: prepared to print; 4: printing; 5: this device is stop 'printer-state': 3, 'printer-state-message': u'Data file sent successfully', 'printer-state-reasons': [u'none'], ... 'printer-uri-supported': u'ipp://localhost:631/printers/hp'}} 20

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PyCUPS - Print File 21

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PyCUPS - Print File ✤ Print ﬁle: 21

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PyCUPS - Print File ✤ Print ﬁle: ✤ conn.printFile(printer, filename, title, options) conn.printFiles(printer, filenames, title, options) 21

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PyCUPS - Print File ✤ Print ﬁle: ✤ conn.printFile(printer, filename, title, options) conn.printFiles(printer, filenames, title, options) ✤ Example: 21

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PyCUPS - Print File ✤ Print ﬁle: ✤ conn.printFile(printer, filename, title, options) conn.printFiles(printer, filenames, title, options) ✤ Example: ✤ conn.printFile(printer, filepath, os.path.basename(filepath), {}) 21

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PyCUPS - Get Jobs 22

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PyCUPS - Get Jobs ✤ Get jobs: 22

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PyCUPS - Get Jobs ✤ Get jobs: ✤ conn.getJobs(which_jobs='not-completed', my_jobs=False, limit=-1, first_job_id=-1, requested_attributes=None) 22

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PyCUPS - Get Jobs ✤ Get jobs: ✤ conn.getJobs(which_jobs='not-completed', my_jobs=False, limit=-1, first_job_id=-1, requested_attributes=None) ✤ The which_jobs can be 'not-completed', 'completed' or 'all'. 22

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The Tips 23

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The Error Log 24

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The Error Log ✤ $ sudo tail -f /var/log/cups/error_log 24

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About Template (CSS) 25

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About Template (CSS) ✤ Use cm/mm as your unit ... 25

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About Template (CSS) ✤ Use cm/mm as your unit ... ✤ The steps of adjusting output: 25

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About Template (CSS) ✤ Use cm/mm as your unit ... ✤ The steps of adjusting output: ✤ Create 1x1 cm div block. 25

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About Template (CSS) ✤ Use cm/mm as your unit ... ✤ The steps of adjusting output: ✤ Create 1x1 cm div block. ✤ Print it. 25

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About Template (CSS) ✤ Use cm/mm as your unit ... ✤ The steps of adjusting output: ✤ Create 1x1 cm div block. ✤ Print it. ✤ Use zoom to adjust. 25

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About Template (CSS) ✤ Use cm/mm as your unit ... ✤ The steps of adjusting output: ✤ Create 1x1 cm div block. ✤ Print it. ✤ Use zoom to adjust. ✤ Avoid ﬂoating structure. 25

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Live Demo 26

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Live Demo 27

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Video Demo 28

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The End 30

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The End 31

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The End ✤ CUPS 31

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The End ✤ CUPS ✤ lpadmin, lpstat, lpr, lpq, lprm, ... 31

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The End ✤ CUPS ✤ lpadmin, lpstat, lpr, lpq, lprm, ... ✤ wxhtmltopdf 31

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The End ✤ CUPS ✤ lpadmin, lpstat, lpr, lpq, lprm, ... ✤ wxhtmltopdf ✤ PyCUPS 31

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The End ✤ CUPS ✤ lpadmin, lpstat, lpr, lpq, lprm, ... ✤ wxhtmltopdf ✤ PyCUPS ✤ Some tips 31

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The End ✤ CUPS ✤ lpadmin, lpstat, lpr, lpq, lprm, ... ✤ wxhtmltopdf ✤ PyCUPS ✤ Some tips ✤ Any Question? 31