On Thu, August 11, 2016 5:13 pm, Dave Stevens wrote:
Quoting Valeri Galtsev galtsev@kicp.uchicago.edu:
On Thu, August 11, 2016 5:02 pm, John R Pierce wrote:
On 8/11/2016 1:46 PM, Valeri Galtsev wrote:
Could someone recommend a script or utility one can run from command
line
on Linux or UNIX machine to make a snapshot of webpage?
We have a signage (xibo) and whoever creates/changes content, likes
to add
URLs of some webpages there. All works well if these are webpages on our servers (which are pretty fast), but some external servers often take
time
to respond and take time to assemble the page, in addition these servers sometimes get really busy, and when response is longer than time devoted for that content in signage window, this window hangs forever with blank white field until you restart client. Trivial workaround: just to get
snapshot (as, say daily cron job), and point signage client to that snapshot definitely will solve it, and simultaneously we will stop bugging
other people servers often without much need for it.
But when I tried to search for some utility or script that makes webpage snapshot, I discovered that my ability to search degraded somehow...
many/most webpages these days are heavily dynamic content, a static
snapshot would likely break. plus any site-relative links on that snapshot would be pointing to your server, not the original, any ajax code on that webpage would try to interact with your server which won't be running the right back end stuff, etcetc.
I usually am not good at explaining what I need. I really only need an
image of what one would see in web browser if one point to that URL. I do
not care it to be interactive. I also don't want to get the content
("mirror") of stuff that URL points to on variety of "depths" - I don't want to use wget or curl for this reason. That is what I tried first and it breaks with at lest one of the web sites - they do seem protect themselves from "robots" or similar. And we don't need it. We just need to
show what they page shows today, that's all.
Valeri
why not File -> Print -> .pdf?
This involves a person sitting with open web browser and clicking mouse. I need to do it for a few webpages once a day, as they change daily. I prefer to once spend time on making cron job, and forget about it forever. Hence I need it done from command line.
Valeri
D
-- john r pierce, recycling bits in santa cruz
++++++++++++++++++++++++++++++++++++++++ Valeri Galtsev Sr System Administrator Department of Astronomy and Astrophysics Kavli Institute for Cosmological Physics University of Chicago Phone: 773-702-4247 ++++++++++++++++++++++++++++++++++++++++ _______________________________________________ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
-- "As long as politics is the shadow cast on society by big business, the
attenuation of the shadow will not change the substance."
-- John Dewey
++++++++++++++++++++++++++++++++++++++++ Valeri Galtsev Sr System Administrator Department of Astronomy and Astrophysics Kavli Institute for Cosmological Physics University of Chicago Phone: 773-702-4247 ++++++++++++++++++++++++++++++++++++++++
Could try https://screenshotlayer.com/
I have had success automating their API.
On Thu, Aug 11, 2016 at 3:19 PM, Valeri Galtsev galtsev@kicp.uchicago.edu wrote:
On Thu, August 11, 2016 5:13 pm, Dave Stevens wrote:
Quoting Valeri Galtsev galtsev@kicp.uchicago.edu:
On Thu, August 11, 2016 5:02 pm, John R Pierce wrote:
On 8/11/2016 1:46 PM, Valeri Galtsev wrote:
Could someone recommend a script or utility one can run from command
line
on Linux or UNIX machine to make a snapshot of webpage?
We have a signage (xibo) and whoever creates/changes content, likes
to add
URLs of some webpages there. All works well if these are webpages on
our
servers (which are pretty fast), but some external servers often take
time
to respond and take time to assemble the page, in addition these
servers
sometimes get really busy, and when response is longer than time
devoted
for that content in signage window, this window hangs forever with
blank
white field until you restart client. Trivial workaround: just to get
snapshot (as, say daily cron job), and point signage client to that snapshot definitely will solve it, and simultaneously we will stop bugging
other people servers often without much need for it.
But when I tried to search for some utility or script that makes
webpage
snapshot, I discovered that my ability to search degraded somehow...
many/most webpages these days are heavily dynamic content, a static
snapshot would likely break. plus any site-relative links on that snapshot would be pointing to your server, not the original, any ajax code on that webpage would try to interact with your server which won't be running the right back end stuff, etcetc.
I usually am not good at explaining what I need. I really only need an
image of what one would see in web browser if one point to that URL. I do
not care it to be interactive. I also don't want to get the content
("mirror") of stuff that URL points to on variety of "depths" - I don't want to use wget or curl for this reason. That is what I tried first and it breaks with at lest one of the web sites - they do seem protect themselves from "robots" or similar. And we don't need it. We just need to
show what they page shows today, that's all.
Valeri
why not File -> Print -> .pdf?
This involves a person sitting with open web browser and clicking mouse. I need to do it for a few webpages once a day, as they change daily. I prefer to once spend time on making cron job, and forget about it forever. Hence I need it done from command line.
Valeri
D
-- john r pierce, recycling bits in santa cruz
++++++++++++++++++++++++++++++++++++++++ Valeri Galtsev Sr System Administrator Department of Astronomy and Astrophysics Kavli Institute for Cosmological Physics University of Chicago Phone: 773-702-4247 ++++++++++++++++++++++++++++++++++++++++ _______________________________________________ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
-- "As long as politics is the shadow cast on society by big business, the
attenuation of the shadow will not change the substance."
-- John Dewey
++++++++++++++++++++++++++++++++++++++++ Valeri Galtsev Sr System Administrator Department of Astronomy and Astrophysics Kavli Institute for Cosmological Physics University of Chicago Phone: 773-702-4247 ++++++++++++++++++++++++++++++++++++++++
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
On Thu, 11 Aug 2016 17:19:15 -0500 (CDT) Valeri Galtsev wrote:
This involves a person sitting with open web browser and clicking mouse. I need to do it for a few webpages once a day, as they change daily. I prefer to once spend time on making cron job, and forget about it forever. Hence I need it done from command line.
html2ps followed by pstoimg and/or imagemagick to create a graphic from the postscript.
I have some some angularjs sites that I test with protractor and a chrome webdriver. I read in the docs at some point that I could take and save screenshots if I wanted. You may be able to write a simple nodejs script to kick of the webdriver and take the screenhsot. Or someone may have already writen one :-)
https://www.seleniumeasy.com/selenium-tutorials/take-screenshot-with-seleniu...
First time on this list, sorry if I mess up on something.
I use http://wkhtmltopdf.org/ there is a to image version as well. I haven't had any trouble with it. I've mostly used on Windows but there are Linux versions.
On Aug 11, 2016 7:09 PM, "Kahlil Hodgson" kahlil.hodgson@dp.exchange wrote:
I have some some angularjs sites that I test with protractor and a chrome webdriver. I read in the docs at some point that I could take and save screenshots if I wanted. You may be able to write a simple nodejs script to kick of the webdriver and take the screenhsot. Or someone may have already writen one :-)
https://www.seleniumeasy.com/selenium-tutorials/take- screenshot-with-selenium-webdriver _______________________________________________ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
-
Frank Cox -
Kahlil Hodgson -
Mark Parsons -
Michael Abbondanza -
Valeri Galtsev