mirror of
https://github.com/discourse/discourse.git
synced 2024-11-22 11:23:25 +08:00
NEW: large image placeholder added in cooked html (#5291)
This commit is contained in:
Vinoth Kannan
Régis Hanol
parent
9ed16343fc
commit
7b494a65c9
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@ -414,6 +414,40 @@ a.mention, a.mention-group {
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}
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}
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.large-image-placeholder {
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> a {
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&.link {
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margin-right: 10px;
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}
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> * { overflow: hidden; }
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> i.fa {
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color: dark-light-choose($primary-medium, $secondary-medium);
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margin-right: 6px;
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font-size: $base-font-size;
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line-height: $base-line-height;
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}
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> span.url {
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display: inline-block;
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max-width: 300px;
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margin-right: 6px;
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text-overflow: ellipsis;
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white-space: nowrap;
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}
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> span.help {
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display: inline-block;
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color: dark-light-choose($primary-medium, $secondary-medium);
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font-size: 0.929em;
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font-style: italic;
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line-height: $base-line-height;
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}
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}
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}
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.broken-image, .large-image {
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color: dark-light-choose($primary-low-mid, $secondary-high);
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border: 1px solid $primary-low;
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@ -8,6 +8,8 @@ module Jobs
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sidekiq_options queue: 'low'
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LARGE_IMAGES = "large_images".freeze
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def initialize
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@max_size = SiteSetting.max_image_size_kb.kilobytes
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end
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@ -46,7 +48,8 @@ module Jobs
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raw = post.raw.dup
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start_raw = raw.dup
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downloaded_urls = {}
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broken_images, large_images = [], []
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large_images = post.custom_fields[LARGE_IMAGES].presence || []
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broken_images, new_large_images = [], []
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extract_images_from(post.cooked).each do |image|
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src = original_src = image['src']
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@ -57,7 +60,7 @@ module Jobs
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if is_valid_image_url(src)
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begin
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# have we already downloaded that file?
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unless downloaded_urls.include?(src)
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unless downloaded_urls.include?(src) || large_images.include?(src) || broken_images.include?(src)
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if hotlinked = download(src)
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if File.size(hotlinked.path) <= @max_size
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filename = File.basename(URI.parse(src).path)
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@ -70,6 +73,7 @@ module Jobs
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end
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else
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large_images << original_src
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new_large_images << original_src
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end
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else
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broken_images << original_src
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@ -104,15 +108,18 @@ module Jobs
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end
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post.custom_fields[LARGE_IMAGES] = large_images
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post.save!
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post.reload
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if start_raw == post.raw && raw != post.raw
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changes = { raw: raw, edit_reason: I18n.t("upload.edit_reason") }
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# we never want that job to bump the topic
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options = { bypass_bump: true }
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post.revise(Discourse.system_user, changes, options)
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elsif downloaded_urls.present?
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elsif downloaded_urls.present? || new_large_images.present?
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post.trigger_post_process(true)
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elsif broken_images.present? || large_images.present?
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elsif broken_images.present?
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start_html = post.cooked
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doc = Nokogiri::HTML::fragment(start_html)
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images = doc.css("img[src]") - doc.css("img.avatar")
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@ -125,21 +132,6 @@ module Jobs
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tag.remove_attribute('src')
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tag.remove_attribute('width')
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tag.remove_attribute('height')
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elsif large_images.include?(src)
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tag.name = 'a'
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tag.set_attribute('href', src)
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tag.set_attribute('target', '_blank')
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tag.set_attribute('title', I18n.t('post.image_placeholder.large'))
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tag.remove_attribute('src')
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tag.remove_attribute('width')
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tag.remove_attribute('height')
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tag.inner_html = '<span class="large-image fa fa-picture-o"></span>'
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parent = tag.parent
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if parent.name == 'a'
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parent.add_next_sibling(tag)
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parent.add_next_sibling('<br>')
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parent.content = parent["href"]
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end
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end
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end
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if start_html == post.cooked && doc.to_html != post.cooked
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@ -524,7 +524,6 @@ en:
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post:
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image_placeholder:
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broken: "This image is broken"
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large: "This image is too large to display here; click to view"
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rate_limiter:
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slow_down: "You have performed this action too many times, try again later."
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@ -2870,6 +2869,8 @@ en:
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too_large: "Sorry, the image you are trying to upload is too big (maximum size is %{max_size_kb}KB), please resize it and try again."
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larger_than_x_megapixels: "Sorry, the image you are trying to upload is too large (maximum dimension is %{max_image_megapixels}-megapixels), please resize it and try again."
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size_not_found: "Sorry, but we couldn't determine the size of the image. Maybe your image is corrupted?"
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placeholders:
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too_large: "(image larger than %{max_size_kb}KB)"
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avatar:
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missing: "Sorry, we can't find any avatar associated with that email address. Can you try uploading it again?"
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@ -81,11 +81,53 @@ class CookedPostProcessor
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return if images.blank?
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images.each do |img|
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next if large_images.include?(img["src"]) && add_large_image_placeholder!(img)
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limit_size!(img)
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convert_to_link!(img)
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end
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end
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def add_large_image_placeholder!(img)
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url = img["src"]
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is_hyperlinked = is_a_hyperlink?(img)
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placeholder = create_node("div", "large-image-placeholder")
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img.add_next_sibling(placeholder)
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placeholder.add_child(img)
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a = create_link_node(nil, url, true)
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img.add_next_sibling(a)
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span = create_span_node("url", url)
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a.add_child(span)
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span.add_previous_sibling(create_icon_node("image"))
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span.add_next_sibling(create_span_node("help", I18n.t("upload.placeholders.too_large", max_size_kb: SiteSetting.max_image_size_kb)))
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# Only if the image is already linked
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if is_hyperlinked
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parent = placeholder.parent
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parent.add_next_sibling(placeholder)
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if parent.name == 'a' && parent["href"].present? && url != parent["href"]
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parent["class"] = "link"
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a.add_previous_sibling(parent)
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lspan = create_span_node("url", parent["href"])
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parent.add_child(lspan)
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lspan.add_previous_sibling(create_icon_node("link"))
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end
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end
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img.remove
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true
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end
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def large_images
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@large_images ||= @post.custom_fields[Jobs::PullHotlinkedImages::LARGE_IMAGES].presence || []
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end
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def extract_images
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# all image with a src attribute
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@doc.css("img[src]") -
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@ -244,21 +286,18 @@ class CookedPostProcessor
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def add_lightbox!(img, original_width, original_height, upload = nil)
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# first, create a div to hold our lightbox
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lightbox = Nokogiri::XML::Node.new("div", @doc)
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lightbox["class"] = "lightbox-wrapper"
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lightbox = create_node("div", "lightbox-wrapper")
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img.add_next_sibling(lightbox)
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lightbox.add_child(img)
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# then, the link to our larger image
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a = Nokogiri::XML::Node.new("a", @doc)
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a = create_link_node("lightbox", img["src"])
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img.add_next_sibling(a)
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if upload && Discourse.store.internal?
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a["data-download-href"] = Discourse.store.download_url(upload)
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end
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a["href"] = img["src"]
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a["class"] = "lightbox"
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a.add_child(img)
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# replace the image by its thumbnail
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@ -266,8 +305,7 @@ class CookedPostProcessor
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img["src"] = upload.thumbnail(w, h).url if upload && upload.has_thumbnail?(w, h)
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# then, some overlay informations
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meta = Nokogiri::XML::Node.new("div", @doc)
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meta["class"] = "meta"
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meta = create_node("div", "meta")
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img.add_next_sibling(meta)
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filename = get_filename(upload, img["src"])
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@ -287,13 +325,32 @@ class CookedPostProcessor
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return I18n.t("upload.pasted_image_filename")
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end
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def create_node(tag_name, klass)
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node = Nokogiri::XML::Node.new(tag_name, @doc)
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node["class"] = klass if klass.present?
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node
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end
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def create_span_node(klass, content = nil)
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span = Nokogiri::XML::Node.new("span", @doc)
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span = create_node("span", klass)
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span.content = content if content
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span["class"] = klass
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span
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end
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def create_icon_node(klass)
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create_node("i", "fa fa-fw fa-#{klass}")
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end
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def create_link_node(klass, url, external = false)
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a = create_node("a", klass)
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a["href"] = url
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if external
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a["target"] = "_blank"
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a["rel"] = "nofollow noopener"
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end
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a
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end
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def update_post_image
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img = extract_images_for_post.first
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return if img.blank?
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@ -318,14 +375,17 @@ class CookedPostProcessor
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uploads = oneboxed_image_uploads.select(:url, :origin)
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oneboxed_images.each do |img|
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if large_images.include?(img["src"])
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img.remove
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next
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end
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url = img["src"].sub(/^https?:/i, "")
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upload = uploads.find { |u| u.origin.sub(/^https?:/i, "") == url }
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img["src"] = upload.url if upload.present?
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end
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# make sure we grab dimensions for oneboxed images
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# and wrap in a div
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oneboxed_images.each do |img|
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# make sure we grab dimensions for oneboxed images
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# and wrap in a div
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limit_size!(img)
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next if img["class"]&.include?('onebox-avatar')
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@ -162,7 +162,7 @@ describe CookedPostProcessor do
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it "generates overlay information" do
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cpp.post_process_images
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expect(cpp.html).to match_html "<p><div class=\"lightbox-wrapper\"><a data-download-href=\"/uploads/default/#{upload.sha1}\" href=\"/uploads/default/1/1234567890123456.jpg\" class=\"lightbox\" title=\"logo.png\"><img src=\"/uploads/default/optimized/1X/#{upload.sha1}_1_690x788.png\" width=\"690\" height=\"788\"><div class=\"meta\">
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expect(cpp.html).to match_html "<p><div class=\"lightbox-wrapper\"><a class=\"lightbox\" href=\"/uploads/default/1/1234567890123456.jpg\" data-download-href=\"/uploads/default/#{upload.sha1}\" title=\"logo.png\"><img src=\"/uploads/default/optimized/1X/#{upload.sha1}_1_690x788.png\" width=\"690\" height=\"788\"><div class=\"meta\">
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<span class=\"filename\">logo.png</span><span class=\"informations\">1750x2000 1.21 KB</span><span class=\"expand\"></span>
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</div></a></div></p>"
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expect(cpp).to be_dirty
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@ -245,7 +245,7 @@ describe CookedPostProcessor do
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it "generates overlay information" do
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cpp.post_process_images
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expect(cpp.html).to match_html "<p><div class=\"lightbox-wrapper\"><a data-download-href=\"/subfolder/uploads/default/#{upload.sha1}\" href=\"/subfolder/uploads/default/1/1234567890123456.jpg\" class=\"lightbox\" title=\"logo.png\"><img src=\"/subfolder/uploads/default/optimized/1X/#{upload.sha1}_1_690x788.png\" width=\"690\" height=\"788\"><div class=\"meta\">
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expect(cpp.html).to match_html "<p><div class=\"lightbox-wrapper\"><a class=\"lightbox\" href=\"/subfolder/uploads/default/1/1234567890123456.jpg\" data-download-href=\"/subfolder/uploads/default/#{upload.sha1}\" title=\"logo.png\"><img src=\"/subfolder/uploads/default/optimized/1X/#{upload.sha1}_1_690x788.png\" width=\"690\" height=\"788\"><div class=\"meta\">
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<span class=\"filename\">logo.png</span><span class=\"informations\">1750x2000 1.21 KB</span><span class=\"expand\"></span>
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</div></a></div></p>"
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expect(cpp).to be_dirty
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@ -254,7 +254,7 @@ describe CookedPostProcessor do
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it "should escape the filename" do
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upload.update_attributes!(original_filename: "><img src=x onerror=alert('haha')>.png")
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cpp.post_process_images
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expect(cpp.html).to match_html "<p><div class=\"lightbox-wrapper\"><a data-download-href=\"/subfolder/uploads/default/#{upload.sha1}\" href=\"/subfolder/uploads/default/1/1234567890123456.jpg\" class=\"lightbox\" title=\"&gt;&lt;img src=x onerror=alert(&#39;haha&#39;)&gt;.png\"><img src=\"/subfolder/uploads/default/optimized/1X/#{upload.sha1}_1_690x788.png\" width=\"690\" height=\"788\"><div class=\"meta\">
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expect(cpp.html).to match_html "<p><div class=\"lightbox-wrapper\"><a class=\"lightbox\" href=\"/subfolder/uploads/default/1/1234567890123456.jpg\" data-download-href=\"/subfolder/uploads/default/#{upload.sha1}\" title=\"&gt;&lt;img src=x onerror=alert(&#39;haha&#39;)&gt;.png\"><img src=\"/subfolder/uploads/default/optimized/1X/#{upload.sha1}_1_690x788.png\" width=\"690\" height=\"788\"><div class=\"meta\">
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<span class=\"filename\">&gt;&lt;img src=x onerror=alert(&#39;haha&#39;)&gt;.png</span><span class=\"informations\">1750x2000 1.21 KB</span><span class=\"expand\"></span>
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</div></a></div></p>"
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end
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@ -280,7 +280,7 @@ describe CookedPostProcessor do
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it "generates overlay information" do
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cpp.post_process_images
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expect(cpp.html).to match_html "<p><div class=\"lightbox-wrapper\"><a data-download-href=\"/uploads/default/#{upload.sha1}\" href=\"/uploads/default/1/1234567890123456.jpg\" class=\"lightbox\" title=\"WAT\"><img src=\"/uploads/default/optimized/1X/#{upload.sha1}_1_690x788.png\" title=\"WAT\" width=\"690\" height=\"788\"><div class=\"meta\">
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expect(cpp.html).to match_html "<p><div class=\"lightbox-wrapper\"><a class=\"lightbox\" href=\"/uploads/default/1/1234567890123456.jpg\" data-download-href=\"/uploads/default/#{upload.sha1}\" title=\"WAT\"><img src=\"/uploads/default/optimized/1X/#{upload.sha1}_1_690x788.png\" title=\"WAT\" width=\"690\" height=\"788\"><div class=\"meta\">
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<span class=\"filename\">WAT</span><span class=\"informations\">1750x2000 1.21 KB</span><span class=\"expand\"></span>
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</div></a></div></p>"
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expect(cpp).to be_dirty
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@ -111,7 +111,7 @@ describe Jobs::PullHotlinkedImages do
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expect(post.cooked).to match(/<p><img src=.*\/uploads/)
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expect(post.cooked).to match(/<img src=.*\/uploads.*\ class="thumbnail"/)
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expect(post.cooked).to match(/<span class="broken-image fa fa-chain-broken/)
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expect(post.cooked).to match(/<\/a><br><a href=.*\ target="_blank" .*\><span class="large-image fa fa-picture-o"><\/span><\/a>/)
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expect(post.cooked).to match(/<div class="large-image-placeholder">/)
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end
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end
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end
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@ -132,9 +132,10 @@ describe Jobs::PullHotlinkedImages do
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Jobs::ProcessPost.new.execute(post_id: post.id)
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Jobs::PullHotlinkedImages.new.execute(post_id: post.id)
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Jobs::ProcessPost.new.execute(post_id: post.id)
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post.reload
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expect(post.cooked).to match(/<a href=.*\ target="_blank" .*\><span class="large-image fa fa-picture-o"><\/span><\/a>/)
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expect(post.cooked).to match(/<div class="large-image-placeholder"><a href=.*\ target="_blank" .*\>/)
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end
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end
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