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What options are available to automate reports in PRTG

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I am managing 14,500 devices spread across 180 locations ( schools ) and I want to be able to set up reports for each of the locations. The devices are wireless access points and I want the IT person at the school to get reports on downtime, client number and bandwidth usage on the access points.

I have done some research today on what I can do with the API and also what I could do using a program to drive the normal user interface ( web scraping and automation ). So this is a post about my findings and an invitation to anybody who may have looked at this to chime in with more information. I just want to share my findings because a fair bit of what I found isn't that well documented:

api report rest

Created on Aug 30, 2018 8:32:13 PM by  GwigstaNummerEin (120) 1 1



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The API for reports is limited. You can do the following:

  • Pull a list of reports
  • Delete a report
  • Clone and rename a report
  • Set the sensors for a report ( add additionals but not remove )

What you cannot do is manipulate report settings through the API but this should be possible through web scraping of the main Settings page web form but this would require a sophisticated python script and couldn't be done with a simple shell script. In terms of automating reports for schools the options might be:

  • Create template reports with everything set except:
    • recipient email
    • Report name
    • Root device group for sensor selection
  • Clone and rename the reports using API call
  • Set device group with API call
  • Set email address for recipients with web scraper script

I would potentially be cloning each report 180 times. If I decided to change something in the report such as:

  • Sensor filter tag
  • Day of report generation
  • Inclusion of data files
  • Beginning and end text

my choices would be:

  • Modify base report, delete all clones reports and regenerate
  • Use webscraper approach to modify all cloned reports individually ( would need to be able to identify them, probably based on a key value in the report name )

Report API Examples

Pulling a List of Reports

So the only thing I can find that you can do with reports is list them. You don't seem to be able to manipulate the node on the device tree to which a run will apply curl --noproxy mydom.com https://prtgaero.mydom.com/api/table.xml?content=reports\&output=xml\&columns=objid,name,template,\ period,schedule,email,lastrun,nextrun\&username=RESTFOOL\&passhash=1234567890 <?xml version="1.0" encoding="UTF-8"?> <reports totalcount="13" listend="1"> <prtg-version>18.3.42.1748</prtg-version> <item> <objid>400</objid> <name>Summary report for all sensors</name> <template>List of sensors (with 1h graph)</template> <period>Day</period> <period_raw>0</period_raw> <schedule>None</schedule> <schedule_raw>0</schedule_raw> <email/> <lastrun>-</lastrun> <nextrun>-</nextrun> </item> <item> : <item> <objid>4787</objid> <name>Santaluces Top 100 Client Counts - 1min Avgs</name> <template>Highest and lowest 1 minute averages</template> <period>Day</period> <period_raw>0</period_raw> <schedule>None</schedule> <schedule_raw>0</schedule_raw> <email/> <lastrun>8/29/2018 2:03:59 PM (176 Sensors)</lastrun> <lastrun_raw>43341.7527726157</lastrun_raw> <nextrun>-</nextrun> </item> <item> <objid>4788</objid> <name>Santaluces Top 100 Client Counts - 5min Avgs</name> <template>Highest and lowest 5 minute averages</template> <period>Day</period> <period_raw>0</period_raw> <schedule>None</schedule> <schedule_raw>0</schedule_raw> <email/> <lastrun>8/29/2018 2:04:30 PM (176 Sensors)</lastrun> <lastrun_raw>43341.7531268750</lastrun_raw> <nextrun>-</nextrun> </item>

Rename a Report

You can rename a report:

curl --noproxy mydom.com https://prtgaero.mydom.com/api/rename.htm?id=4788\&value=Silly%20New%20Report%20Name\&username=RESTFOOL\&passhash=1234567890
<HTML><BODY class="no-content"><B class="no-content">OK</B></BODY></HTML>

Set Sensors for a Report

So contrary to my belief, there is an API call to add a group, device or sensor.

curl --noproxy mydom.com https://prtgaero.mydom.com/api/reportaddsensor.htm?id=4785\&addid=2934\&username=RESTFOOL\&passhash=1234567890 The problem is that there is no way to retrieve the set of assigned sensors or groups or to delete objects. The only option would be to clone a report, set the report name and sensors and email. We would want to be able to delete a report as well if we needed to rebuild a set of reports.

Clone a Report

A report can be cloned and the clone renamed:

curl --noproxy mydom.com https://prtgaero.mydom.com/api/duplicateobject.htm?id=4784\&name=TestNewReport\&username=RESTFOOL\&passhash=1234567890

Note that this does not provide us with the ID of the new object. A better way to use curl is:

curl -Ls -o /dev/null -w %{url_effective} --noproxy mydom.com https://prtgaero.mydom.com/api/duplicateobject.htm?id=4784\&name=TestNewReport\&username=RESTFOOL\&passhash=1234567890

https://prtgaero.mydom.com/public/login.htm?loginurl=%2Freport.htm%3Fid%3D4792%26tabid%3D3&errormsg=
  • -L option: "If the server reports that the requested page has moved to a different location (indicated with a Location: header and a 3XX response code), this option will make curl redo the request on the new place."
  • -o /dev/null sends normal output to oblivion
  • -w %{url_effective} causes the redirect URL to be written to stdout
  • -s is silent

So we get the redirect URL back and in there is the ID of the new object:

https://prtgaero.mydom.com/public/login.htm?loginurl=%2Freport.htm%3Fid%3D4792%26tabid%3D3&errormsg=

In our script we pull this ID out by piping the output through sed: | sed -e 's/^https.*id%3D\([0-9]\+\).*$/\1/'

The response when creating a report is the following ( used the -v option to get this ):

< HTTP/1.1 302 Moved Temporarily
< Connection: close
< Content-Type: text/html; charset=UTF-8
< Content-Length: 0
< Date: Thu, 30 Aug 2018 17:37:27 GMT
< Expires: 0
< Cache-Control: no-cache
< X-Content-Type-Options: nosniff
< X-XSS-Protection: 1; mode=block
< Server: PRTG/18.3.42.1748
< Location: /report.htm?id=4793&tabid=3

The returned URL /report.htm?id=4793&tabid=3 would actually take you to the Settings tab for the newly created report. Delete a Report In the event that there was some kind of change to the master report, there would be a requirement to delete any reports cloned from the master and then recreate them.

curl --noproxy mydom.com https://prtgaero.mydom.com/api/deleteobject.htm?id=4791\&approve=1\&username=RESTFOOL\&passhash=1234567890

Scheduling or Customizing a Report

Once a report has been cloned, assuming it has no scheduling, it is then possible to set it up on a schedule to be emailed out. I found reference to what looks like an API call "genreport" with the following parameters:

Parameter Description id Report ID report_period Must be set to "manual" manual_period_start Start date in format 2010-01-01 manual_period_end End date in format 2010-03-31 report_processing Set to "report_pdfandmail" report_emailaddress Target Email Address for the report

This was pulled from a forum post detailing a specific use of those parameters and the API call is not documented by Paessler. The problem this one is that it is a one time invocation

Looking at what happens when the settings are changed and saved through the web interface:

#593016 2018-08-30 15:09:53 10.254.20.208 "user2917" prtgaero.mydom.com 443 POST /editsettings 
"name_=Weekly Daily Downtime"
&tags_=
&"template_=T2 Top10 Uptime time.htm"
&"ownerid_=2917|Ed McGuigan|"
&"timezone_=Eastern Standard Time|(UTC-05:00) Eastern Time (US & Canada)"
&papersize_=letter
&orientation_=0
&comments=
&sensorlist=2945
&tagfilter_=
&filtertag_=pingsensor
&scheduletype_=3
&specifichour_=0
&dayweek_=7
&daymonth_=1
&date_=
&maildisk_=2
&[email protected],[email protected]
&emailgroup_=-1
&usecompression_=0
&dataperiod_=1
&reporttype_=1
&reportday_=0
&reportweek_=1
&reportmonth_=1
&reportyear_=1
&schedule_=-1|None|
&percentileshow_=0
&percentile_=95
&percentileaverage_=300
&percentilemode_=1
&savedatafiles_=nofiles
&"reportheader_=Bing bong boolabongbing"
&"reportfooter_=Ding dang gillyfangs"
&accessrights_=1
&accessrights_=1
&accessrights_201=100
&id=4790

It would be possible for me to build up a web form and do a POST to simulate this. I would need to pull the report with a webscraper and then read every form field and it's value to recreate the form, change the email address to what I wanted and then post the form. Fairly doable from python.

Created on Aug 31, 2018 1:15:57 PM by  GwigstaNummerEin (120) 1 1



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