Our forum is having problems displaying images. Sometimes they show, but most of the time they don’t. Not sure how to track this down, our image max display size is 860x860, max upload size is 4M. Here is a thread which shows the difficulties: https://forum.valentina-project.org/t/pngs-a-no-show/1964

Hi @sam, thanks for the suggestion, last night I updated last week’s release via terminal window (cd /var/discourse, git pull, .launcher rebuild app) and the problem still exists. We don’t use Amazon s3 storage.

[图片] slspencer: We use a lot of screenshots (.png, .svg) and other images to provide software support. I don’t have any explanations for your problem, but note that you can paste images directly into the composer. You don’t need to first paste into some other application to create and image to then upload.

Got the message that docker version not supported Installed docker-ce, now is my forum gone? After running the latest Discourse update a few days ago, clicking the the download icon opens .txt files in a browser instead of downloading them, yet no Discourse settings were changed. Yet now .png files are displaying properly. So a deeper problem is occuring. I implemented the Discourse/Docker periodic manual full update instructions and watched error messages. All updates .launcher rebuild app I received an error message that docker 17.05 is not supported, minimum required is 17.06.02. Ubuntu has changed the package name from docker-engine to docker-ce. Is it safe to install docker-ce, as this won’t be an upgrade? Because of the docker version preventing app rebuild, my forum is down. :frowning: What do? [图片] Manually update Discourse and Docker image to latest Self-Hosting bookmark This guide provides step-by-step instructions for manually updating Discourse, the Docker container, and the Ubuntu operating system on a self-hosted setup. person_raising_hand Required user level: System Administrator warning SSH access to the server. If you self-host Discourse, you occasionally need to run a manual update via the command line to get the latest security releases and newest libraries. These updates are not picked up in admin/upgrade, which is why you’ll occa…

Yes docker ce is what you want to use

Hi @Sam, Yeah I installed docker-ce, per https://askubuntu.com/questions/472412/how-do-i-upgrade-docker/473720 and https://www.digitalocean.com/community/tutorials/how-to-install-and-use-docker-on-ubuntu-16-04 Then ran .launcher rebuild app, which initiated a download of the base Discourse image. I stopped it, figured this would wipe out my forum files. Should I let this run?

[图片] slspencer: Logo-400.svg, 500 x 377 in (upload://vV2kqp94XodzHtRWyekld9ibchs.svg) I see a big black square in both the browser and inkscape which matches the source: <svg xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:cc="http://creativecommons.org/ns#" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd" xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape" id="svg4206" version="1.1" inkscape:version="0.91 r" width="500" height="377.5" viewBox="0 0 500 377.5" sodipodi:docname="Logo-400.svg"> [图片] slspencer: FTB_EpicMod.svg, | 320x352 in (upload://2Af3Xa8MUy2FNBGSzhqYCIfaI9k.svg) I don’t actually see an image in this file, just a white background. if you still have the original can you check to see if the contents have changed? I see: <svg xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:cc="http://creativecommons.org/ns#" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd" xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape" width="320.9mm" height="352.2mm" viewBox="0 0 320.9 352.2" version="1.1" id="svg8" inkscape:version="0.92.2 (unknown)" sodipodi:docname="FTB_EpicMode.svg">

Yes. Your forum files are safe in /var/discourse/shared/standalone.

It is best not to muddy the waters even further at this point. Svg gets downgraded a lot if the text content is on our unsafe blacklists. Focus on pngs first.

SVG images are run through an XML whitelist, any non-approved elements are removed. lib/upload_creator.rb 5d528f0d1 require "fastimage" require_dependency "image_sizer" class UploadCreator TYPES_CONVERTED_TO_JPEG ||= %i{bmp png} TYPES_TO_CROP ||= %w{avatar card_background custom_emoji profile_background}.each(&:freeze) WHITELISTED_SVG_ELEMENTS ||= %w{ circle clippath defs ellipse g line linearGradient path polygon polyline radialGradient rect stop svg text textpath tref tspan use }.each(&:freeze) # Available options # - type (string) # - content_type (string) # - origin (string) # - for_group_message (boolean) # - for_theme (boolean)

PNG's a no show

Product Support

codinghorror (Jeff Atwood) 2017 年11 月 8 日 09:44 32

Sorry for the delay, it was a Rails 5.x upgrade issue that took a while to work out.

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PNG's a no show

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