discourse/lib/tasks/uploads.rake

508 lines
14 KiB
Ruby

require "digest/sha1"
################################################################################
# backfill_shas #
################################################################################
task "uploads:backfill_shas" => :environment do
RailsMultisite::ConnectionManagement.each_connection do |db|
puts "Backfilling #{db}"
Upload.select([:id, :sha, :url]).find_each do |u|
if u.sha.nil?
putc "."
path = "#{Rails.root}/public/#{u.url}"
sha = Digest::SHA1.file(path).hexdigest
begin
Upload.update_all ["sha = ?", sha], ["id = ?", u.id]
rescue ActiveRecord::RecordNotUnique
# not a big deal if we've got a few duplicates
end
end
end
end
puts "done"
end
################################################################################
# migrate_from_s3 #
################################################################################
task "uploads:migrate_from_s3" => :environment do
require "file_store/local_store"
require "file_helper"
max_file_size_kb = [SiteSetting.max_image_size_kb, SiteSetting.max_attachment_size_kb].max.kilobytes
local_store = FileStore::LocalStore.new
puts "Deleting all optimized images..."
puts
OptimizedImage.destroy_all
puts "Migrating uploads from S3 to local storage"
puts
Upload.find_each do |upload|
# remove invalid uploads
if upload.url.blank?
upload.destroy!
next
end
# no need to download an upload twice
if local_store.has_been_uploaded?(upload.url)
putc "."
next
end
# try to download the upload
begin
# keep track of the previous url
previous_url = upload.url
# fix the name of pasted images
upload.original_filename = "blob.png" if upload.original_filename == "blob"
# download the file (in a temp file)
temp_file = FileHelper.download("http:" + previous_url, max_file_size_kb, "from_s3")
# store the file locally
upload.url = local_store.store_upload(temp_file, upload)
# save the new url
if upload.save
# update & rebake the posts (if any)
Post.where("raw ILIKE ?", "%#{previous_url}%").find_each do |post|
post.raw = post.raw.gsub(previous_url, upload.url)
post.save
end
putc "#"
else
putc "X"
end
# close the temp_file
temp_file.close! if temp_file.respond_to? :close!
rescue
putc "X"
end
end
puts
end
################################################################################
# migrate_to_s3 #
################################################################################
task "uploads:migrate_to_s3" => :environment do
require "file_store/s3_store"
require "file_store/local_store"
ENV["RAILS_DB"] ? migrate_to_s3 : migrate_to_s3_all_sites
end
def migrate_to_s3_all_sites
RailsMultisite::ConnectionManagement.each_connection { migrate_to_s3 }
end
def migrate_to_s3
# make sure s3 is enabled
if !SiteSetting.enable_s3_uploads
puts "You must enable s3 uploads before running that task"
return
end
db = RailsMultisite::ConnectionManagement.current_db
puts "Migrating uploads to S3 (#{SiteSetting.s3_upload_bucket}) for '#{db}'..."
# will throw an exception if the bucket is missing
s3 = FileStore::S3Store.new
local = FileStore::LocalStore.new
# Migrate all uploads
Upload.where.not(sha1: nil)
.where("url NOT LIKE '#{s3.absolute_base_url}%'")
.find_each do |upload|
# remove invalid uploads
if upload.url.blank?
upload.destroy!
next
end
# store the old url
from = upload.url
# retrieve the path to the local file
path = local.path_for(upload)
# make sure the file exists locally
if !File.exists?(path)
putc "X"
next
end
begin
file = File.open(path)
content_type = `file --mime-type -b #{path}`.strip
to = s3.store_upload(file, upload, content_type)
rescue
putc "X"
next
ensure
file.try(:close!) rescue nil
end
# remap the URL
remap(from, to)
putc "."
end
end
################################################################################
# clean_up #
################################################################################
task "uploads:clean_up" => :environment do
RailsMultisite::ConnectionManagement.each_connection do |db|
puts "Cleaning up uploads and thumbnails for '#{db}'..."
if Discourse.store.external?
puts "This task only works for internal storages."
next
end
public_directory = "#{Rails.root}/public"
##
## DATABASE vs FILE SYSTEM
##
# uploads & avatars
Upload.find_each do |upload|
path = "#{public_directory}#{upload.url}"
if !File.exists?(path)
upload.destroy rescue nil
putc "#"
else
putc "."
end
end
# optimized images
OptimizedImage.find_each do |optimized_image|
path = "#{public_directory}#{optimized_image.url}"
if !File.exists?(path)
optimized_image.destroy rescue nil
putc "#"
else
putc "."
end
end
##
## FILE SYSTEM vs DATABASE
##
uploads_directory = "#{public_directory}/uploads/#{db}"
# avatars (no avatar should be stored in that old directory)
FileUtils.rm_rf("#{uploads_directory}/avatars") rescue nil
# uploads
Dir.glob("#{uploads_directory}/*/*.*").each do |f|
url = "/uploads/#{db}/" << f.split("/uploads/#{db}/")[1]
if !Upload.where(url: url).exists?
FileUtils.rm(f) rescue nil
putc "#"
else
putc "."
end
end
# optimized images
Dir.glob("#{uploads_directory}/_optimized/*/*/*.*").each do |f|
url = "/uploads/#{db}/_optimized/" << f.split("/uploads/#{db}/_optimized/")[1]
if !OptimizedImage.where(url: url).exists?
FileUtils.rm(f) rescue nil
putc "#"
else
putc "."
end
end
puts
end
end
################################################################################
# missing #
################################################################################
# list all missing uploads and optimized images
task "uploads:missing" => :environment do
public_directory = "#{Rails.root}/public"
RailsMultisite::ConnectionManagement.each_connection do |db|
if Discourse.store.external?
puts "This task only works for internal storages."
next
end
Upload.find_each do |upload|
# could be a remote image
next unless upload.url =~ /^\/[^\/]/
path = "#{public_directory}#{upload.url}"
bad = true
begin
bad = false if File.size(path) != 0
rescue
# something is messed up
end
puts path if bad
end
OptimizedImage.find_each do |optimized_image|
# remote?
next unless optimized_image.url =~ /^\/[^\/]/
path = "#{public_directory}#{optimized_image.url}"
bad = true
begin
bad = false if File.size(path) != 0
rescue
# something is messed up
end
puts path if bad
end
end
end
################################################################################
# regenerate_missing_optimized #
################################################################################
# regenerate missing optimized images
task "uploads:regenerate_missing_optimized" => :environment do
ENV["RAILS_DB"] ? regenerate_missing_optimized : regenerate_missing_optimized_all_sites
end
def regenerate_missing_optimized_all_sites
RailsMultisite::ConnectionManagement.each_connection { regenerate_missing_optimized }
end
def regenerate_missing_optimized
db = RailsMultisite::ConnectionManagement.current_db
puts "Regenerating missing optimized images for '#{db}'..."
if Discourse.store.external?
puts "This task only works for internal storages."
return
end
public_directory = "#{Rails.root}/public"
missing_uploads = Set.new
OptimizedImage.includes(:upload)
.where("LENGTH(COALESCE(url, '')) > 0")
.where("width > 0 AND height > 0")
.find_each do |optimized_image|
upload = optimized_image.upload
next unless optimized_image.url =~ /^\/[^\/]/
next unless upload.url =~ /^\/[^\/]/
thumbnail = "#{public_directory}#{optimized_image.url}"
original = "#{public_directory}#{upload.url}"
if !File.exists?(thumbnail) || File.size(thumbnail) <= 0
# make sure the original image exists locally
if (!File.exists?(original) || File.size(original) <= 0) && upload.origin.present?
# try to fix it by redownloading it
begin
downloaded = FileHelper.download(upload.origin, SiteSetting.max_image_size_kb.kilobytes, "discourse-missing", true) rescue nil
if downloaded && downloaded.size > 0
FileUtils.mkdir_p(File.dirname(original))
File.open(original, "wb") { |f| f.write(downloaded.read) }
end
ensure
downloaded.try(:close!) if downloaded.respond_to?(:close!)
end
end
if File.exists?(original) && File.size(original) > 0
FileUtils.mkdir_p(File.dirname(thumbnail))
OptimizedImage.resize(original, thumbnail, optimized_image.width, optimized_image.height)
putc "#"
else
missing_uploads << original
putc "X"
end
else
putc "."
end
end
puts "", "Done"
if missing_uploads.size > 0
puts "Missing uploads:"
missing_uploads.sort.each { |u| puts u }
end
end
################################################################################
# migrate_to_new_pattern #
################################################################################
task "uploads:migrate_to_new_pattern" => :environment do
ENV["RAILS_DB"] ? migrate_to_new_pattern : migrate_to_new_pattern_all_sites
end
def migrate_to_new_pattern_all_sites
RailsMultisite::ConnectionManagement.each_connection { migrate_to_new_pattern }
end
def migrate_to_new_pattern
db = RailsMultisite::ConnectionManagement.current_db
puts "Migrating uploads to new pattern for '#{db}'..."
migrate_uploads_to_new_pattern
puts "Migrating optimized images to new pattern for '#{db}'..."
migrate_optimized_images_to_new_pattern
puts "Done!"
end
def migrate_uploads_to_new_pattern
if Upload.where(sha1: nil).exists?
puts "Computing missing SHAs..."
Upload.where(sha1: nil).find_each do |upload|
path = Discourse.store.path_for(upload)
size = File.size(path) rescue 0
if size > 0
upload.sha1 = Digest::SHA1.file(path).hexdigest
upload.save
putc "."
else
upload.destroy
putc "X"
end
end
puts
end
puts "Moving uploads to new location..."
Upload.where.not(sha1: nil)
.where("url LIKE '/uploads/%'")
.where("url NOT LIKE '/uploads/%/original/%'")
.find_each do |upload|
path = Discourse.store.path_for(upload)
if File.exists?(path)
file = File.open(path)
# copy file to new location
url = Discourse.store.store_upload(file, upload)
file.try(:close!) rescue nil
# remap URLs
remap(upload.url, url)
# remove old file
FileUtils.rm(path, force: true) rescue nil
putc "."
else
# upload.destroy
putc "X"
end
end
puts
end
def migrate_optimized_images_to_new_pattern
if OptimizedImage.where(sha1: nil).exists?
puts "Computing missing SHAs..."
OptimizedImage.where(sha1: nil).find_each do |optimized_image|
path = Discourse.store.path_for(optimized_image)
size = File.size(path) rescue 0
if size > 0
optimized_image.sha1 = Digest::SHA1.file(path).hexdigest
optimized_image.save
putc "."
else
optimized_image.destroy
putc "X"
end
end
puts
end
puts "Moving optimized images to new location..."
OptimizedImage.where.not(sha1: nil)
.where("width > 0 AND height > 0")
.where("url LIKE '/uploads/%/_optimized/%'")
.where("url NOT LIKE '/uploads/%/optimized/%'")
.find_each do |optimized_image|
path = Discourse.store.path_for(optimized_image)
if File.exists?(path)
file = File.open(path)
# copy file to new location
url = Discourse.store.store_optimized_image(file, optimized_image)
file.try(:close!) rescue nil
# remap URLs
remap(optimized_image.url, url)
# remove old file
FileUtils.rm(path, force: true) rescue nil
putc "."
else
optimized_image.destroy
putc "X"
end
end
puts
end
REMAP_SQL ||= "
SELECT table_name, column_name
FROM information_schema.columns
WHERE table_schema = 'public'
AND is_updatable = 'YES'
AND (data_type LIKE 'char%' OR data_type LIKE 'text%')
ORDER BY table_name, column_name
"
def remap(from, to)
connection ||= ActiveRecord::Base.connection.raw_connection
remappable_columns ||= connection.async_exec(REMAP_SQL).to_a
remappable_columns.each do |rc|
table_name = rc["table_name"]
column_name = rc["column_name"]
begin
connection.async_exec("
UPDATE #{table_name}
SET #{column_name} = REPLACE(#{column_name}, $1, $2)
WHERE #{column_name} IS NOT NULL
AND #{column_name} <> REPLACE(#{column_name}, $1, $2)", [from, to])
rescue
end
end
end