debshots/app/controllers/packages_controller.rb

235 lines
7 KiB
Ruby

class PackagesController < ApplicationController
protect_from_forgery :except => :legacy_uploadfile
def list
@packages = query_packages.paginate(page: params[:page], per_page: 6)
end
def grid
@packages = query_packages.paginate(page: params[:page], per_page: 24)
end
def details
@package = Package.find_by!(name: params[:name])
end
def upload
@package = Package.find_by!(name: params[:name])
end
# POST target of the screenshots upload form.
# Checks upload images and creates a new Screenshot record for it.
def upload_image
# Remember the user by the cookie session
create_user_token
@package = Package.find_by!(name: params[:name])
successful_upload_count = 0
params[:screenshot][:image].each do |img|
new_screenshot = @package.screenshots.new(image: img)
# Check if the image was valid
if new_screenshot.valid?
new_screenshot.uploaderhash = session[:token]
new_screenshot.uploaderip = session[:ip]
new_screenshot.version = @package.version
new_screenshot.save
successful_upload_count += 1
Log.log "Screenshot #{new_screenshot.id} uploaded successfully."
else
errors = new_screenshot.errors[:image].join(' and ')
flash['alert'] = "Sorry - the image #{errors}"
end
if successful_upload_count > 0
flash['notice'] = "#{successful_upload_count} #{'screenshot'.pluralize(successful_upload_count)} uploaded successfully."
end
end
redirect_to package_path
end
# Legacy action to upload an image along with metadata.
# This was used in Debshots 1.x as the default upload method.
# This method allows that old-style way to upload screenshots.
# It is probably used by screenshotting tools.
#
# Parameters:
# - packagename
# - version
# - description
# - file
def legacy_uploadfile
@package = Package.find_by!(name: params[:packagename])
new_screenshot = @package.screenshots.new(image: params[:file])
# Check if the image was valid
if new_screenshot.valid?
# new_screenshot.uploaderhash = session[:token]
new_screenshot.uploaderip = session[:ip]
new_screenshot.version = @package.version
new_screenshot.save
Log.log "Screenshot #{new_screenshot.id} uploaded successfully from legacy upload form."
redirect_to package_path(params[:packagename])
else
Log.log "Screenshot upload rejected. Errors: #{new_screenshot.errors.to_a}"
head :not_acceptable
end
end
def delete_screenshot
# Is the user allowed to delete the screenshot?
@screenshot = Screenshot.find(params[:id])
if user_can_alter_screenshot?
@screenshot.destroy
flash['notice'] = "Screenshot deleted."
redirect_to :back
else
head :forbidden
end
end
def approve_screenshot
@screenshot = Screenshot.find(params[:id])
@screenshot.approve_screenshot!
flash['notice'] = "Screenshot approved."
redirect_to :back
end
# Returns a 160x120 thumbnail image if posssible.
# If the package is not found it returns a dummy image along with status 404.
# If the package is found but has no screenshots then it also returns a
# dummy image along with status 404.
def thumbnail
@package = Package.find_by!(name: params[:name])
unless @package
thumbnail404
return
end
# Called as /thumbnail-with-version/:name/:version
if params[:version]
@screenshot = @package.best_screenshot_for_version(params[:version])
# Called as /thumbnail/:name
else
@screenshot = @package.screenshots.first
end
# Return a 404 if the package has no screenshots or the image was not found
unless @screenshot and @screenshot.image.path
thumbnail404
return
end
# Send the thumbnail (uses X-Sendfile or similar if possible)
send_file @screenshot.image.path(:thumb), type: "image/png", disposition: 'inline'
end
# Returns a large screenshot image if posssible.
# If the package is not found it returns a dummy image along with status 404.
# If the package is found but has no screenshots then it also returns a
# dummy image along with status 404.
def screenshot
@package = Package.find_by!(name: params[:name])
unless @package
screenshot404
return
end
# Called as /thumbnail-with-version/:name/:version
if params[:version]
@screenshot = @package.best_screenshot_for_version(params[:version])
# Called as /thumbnail/:name
else
@screenshot = @package.screenshots.first
end
# Return a 404 if the package has no screenshots or the image was not found
unless @screenshot and @screenshot.image.path
screenshot404
return
end
# Send the thumbnail (uses X-Sendfile or similar if possible)
send_file @screenshot.image.path(:large), type: "image/png", disposition: 'inline'
end
# Receives a form with a simple text field 'description' so that users can update
# the description of their screenshot.
def update_screenshot_description
@screenshot = Screenshot.find(params[:id])
@screenshot.description = params[:description]
@screenshot.save!
flash['notice'] = "Description updated."
redirect_to :back
end
# Receive an anonymous report from a user to have a screenshot removed.
def report_screenshot
@screenshot = Screenshot.find(params[:id])
@screenshot.delete_reason = params[:delete_reason]
@screenshot.markedfordelete = true
@screenshot.save!
flash['notice'] = "Screenshot reported. The moderators will deal with it."
redirect_to :back
end
private
# Send a dummy thumbnail reading "No screenshot available. Sorry."
def thumbnail404
send_file Rails.root.join('public/images/dummy/thumbnail404.png'),
type: "image/png",
disposition: 'inline',
status: 404
end
def screenshot404
send_file Rails.root.join('public/images/dummy/screenshot404.png'),
type: "image/png",
disposition: 'inline',
status: 404
end
# Return packages matching the criteria given by parameters
def query_packages
packages = Package.includes(:screenshots)
# text search
if params[:search].present?
logger.debug "Searching for #{params[:search]}"
packages = packages.general_search(params[:search])
end
case params[:show]
when 'with'
packages = packages.with_screenshots
logger.debug 'Limiting packages to those with screenshots'
when 'without'
packages = packages.without_screenshots
logger.debug 'Limiting packages to those without screenshots'
end
return packages
end
# Check if the user is allowed to do changed to a screenshot
def user_can_alter_screenshot?
# - Is this the user's own screenshot?
# - Is the user an admin (=logged in)?
@screenshot.uploaderhash == session[:token] or user_signed_in?
end
# Store a random identifier and the client's IP address in the session
# for later identification.
def create_user_token
session[:token] ||= SecureRandom.hex
session[:ip] ||= request.remote_ip
end
end