|
| 1 | +require "open-uri" |
| 2 | +require "pdf-reader" |
| 3 | +require "timecop" |
| 4 | + |
| 5 | +class Whitehall::DocumentImporter |
| 6 | + def self.import!(data) |
| 7 | + edition = create_base_edition!(data) |
| 8 | + |
| 9 | + AuditTrail.acting_as(robot_user) do |
| 10 | + EditorialRemark.create!( |
| 11 | + edition: edition, |
| 12 | + body: internal_history_summary(data["internal_history"]), |
| 13 | + author: robot_user, |
| 14 | + created_at: Time.zone.now, |
| 15 | + updated_at: Time.zone.now, |
| 16 | + ) |
| 17 | + end |
| 18 | + |
| 19 | + save_attachments(data, edition) |
| 20 | + save_images(data, edition) |
| 21 | + |
| 22 | + edition.document.update_columns( |
| 23 | + content_id: data["content_id"], |
| 24 | + slug: data["base_path"].split("/").last, |
| 25 | + ) |
| 26 | + edition.document |
| 27 | + end |
| 28 | + |
| 29 | + def self.create_base_edition!(data) |
| 30 | + user = User.find_by(email: data["created_by"]) || Whitehall::DocumentImporter.robot_user |
| 31 | + AuditTrail.acting_as(user) do |
| 32 | + # Override time, otherwise "Document created" timestamp in sidebar reflects current date |
| 33 | + Timecop.travel(Time.zone.parse(data["first_published_at"])) do |
| 34 | + edition = StandardEdition.new( |
| 35 | + # TODO: we're blocked on running the import in full until press_release has |
| 36 | + # been migrated to StandardEdition (one of the two `document_type`s we need to support) |
| 37 | + configurable_document_type: "news_story", # data["document_type"], |
| 38 | + created_at: data["created_at"], |
| 39 | + state: derived_state(data["state"]), |
| 40 | + title: data["title"], |
| 41 | + summary: data["summary"], |
| 42 | + block_content: { |
| 43 | + "body" => pre_process_body(data["body"]), |
| 44 | + }, |
| 45 | + political: data["political"], |
| 46 | + government_id: data["government_id"], |
| 47 | + change_note: combined_change_notes(data["change_notes"]), |
| 48 | + alternative_format_provider_id: Organisation.find_by(content_id: data["tags"]["primary_publishing_organisation"]).id, |
| 49 | + lead_organisations: [Organisation.find_by(content_id: data["tags"]["primary_publishing_organisation"])], |
| 50 | + supporting_organisations: Organisation.where(content_id: data["tags"]["organisations"]), |
| 51 | + topical_events: TopicalEvent.where(content_id: data["tags"]["topical_events"]), |
| 52 | + world_locations: WorldLocation.where(content_id: data["tags"]["world_locations"]), |
| 53 | + role_appointments: RoleAppointment.where(content_id: data["tags"]["role_appointments"]), |
| 54 | + ) |
| 55 | + edition.creator = user |
| 56 | + set_publish_timestamps(edition, data) |
| 57 | + edition.save! |
| 58 | + return edition |
| 59 | + end |
| 60 | + end |
| 61 | + end |
| 62 | + |
| 63 | + def self.derived_state(state) |
| 64 | + case state |
| 65 | + when "published", "published_but_needs_2i" |
| 66 | + "published" |
| 67 | + when "withdrawn" |
| 68 | + "withdrawn" |
| 69 | + else |
| 70 | + raise "Unsupported state: #{state}" |
| 71 | + end |
| 72 | + end |
| 73 | + |
| 74 | + def self.set_publish_timestamps(edition, data) |
| 75 | + if Time.zone.parse(data["created_at"]) > Time.zone.parse(data["first_published_at"]) |
| 76 | + edition.first_published_at = data["first_published_at"] |
| 77 | + edition.previously_published = true |
| 78 | + else |
| 79 | + edition.previously_published = false |
| 80 | + end |
| 81 | + edition.major_change_published_at = data["first_published_at"] |
| 82 | + end |
| 83 | + |
| 84 | + def self.pre_process_body(body) |
| 85 | + # Content Publisher has embeds like `[Contact: c1f13fd8-9feb-4028-9323-7cb3383323b4]`. |
| 86 | + # Here we find-and-replace for Whitehall's equivalent: `[Contact:171]` |
| 87 | + body.gsub!(/\[Contact: ?(.+?)\]/) do |_match| |
| 88 | + id = Contact.find_by(content_id: ::Regexp.last_match(1)).id |
| 89 | + "[Contact:#{id}]" |
| 90 | + end |
| 91 | + body |
| 92 | + end |
| 93 | + |
| 94 | + def self.combined_change_notes(change_notes) |
| 95 | + return nil if change_notes.empty? |
| 96 | + |
| 97 | + change_notes.map { |cn| |
| 98 | + "#{Time.zone.parse(cn['public_timestamp']).strftime('%-d %B %Y')}: #{cn['note']}" |
| 99 | + }.join("; ") |
| 100 | + end |
| 101 | + |
| 102 | + def self.internal_history_summary(internal_history) |
| 103 | + return "No internal history available" if internal_history.empty? |
| 104 | + |
| 105 | + lines = [ |
| 106 | + "Imported from Content Publisher on #{Time.zone.now.strftime('%-d %B %Y at %H:%M')}. Document history:<br>", |
| 107 | + ] |
| 108 | + internal_history.each do |entry| |
| 109 | + line = "#{entry['date']} #{entry['time']}: #{entry['entry_type'].to_s.humanize} by #{entry['user']}" |
| 110 | + line += ". Details: #{entry['entry_content']}" if entry["entry_content"].present? |
| 111 | + lines << "• #{line}" |
| 112 | + end |
| 113 | + |
| 114 | + lines.join("<br>") |
| 115 | + end |
| 116 | + |
| 117 | + def self.save_attachments(data, edition) |
| 118 | + # Temporarily disable callbacks that try to read the file to get its size and content type |
| 119 | + # since we don't have a local file, just the Asset Manager reference. |
| 120 | + AttachmentData.skip_callback(:save, :before, :update_file_attributes) |
| 121 | + |
| 122 | + data["attachments"].each do |attachment_hash| |
| 123 | + uploader_identifier = File.basename(attachment_hash["file_url"]) |
| 124 | + response = URI.parse(attachment_hash["file_url"]).open |
| 125 | + attachment_data = AttachmentData.new( |
| 126 | + carrierwave_file: uploader_identifier, |
| 127 | + content_type: response.content_type, |
| 128 | + file_size: response.size, |
| 129 | + number_of_pages: response.content_type == "application/pdf" ? PDF::Reader.new(response).page_count : nil, |
| 130 | + created_at: attachment_hash["created_at"], |
| 131 | + updated_at: attachment_hash["created_at"], |
| 132 | + ) |
| 133 | + attachment_data.save!(validate: false) # no local file, so have to skip validation |
| 134 | + Asset.create!( |
| 135 | + variant: "original", |
| 136 | + filename: File.basename(attachment_hash["file_url"]), |
| 137 | + asset_manager_id: attachment_hash["file_url"].match(%r{media/([^/]+)}).captures.first, |
| 138 | + assetable: attachment_data, |
| 139 | + ) |
| 140 | + |
| 141 | + attachment = FileAttachment.create!( |
| 142 | + attachable: edition, |
| 143 | + title: attachment_hash["title"], |
| 144 | + attachment_data: attachment_data, |
| 145 | + accessible: false, |
| 146 | + isbn: "", |
| 147 | + unique_reference: "", |
| 148 | + command_paper_number: "", |
| 149 | + hoc_paper_number: "", |
| 150 | + parliamentary_session: "", |
| 151 | + unnumbered_command_paper: false, |
| 152 | + unnumbered_hoc_paper: false, |
| 153 | + created_at: attachment_hash["created_at"], |
| 154 | + updated_at: attachment_hash["created_at"], |
| 155 | + ) |
| 156 | + edition.attachments << attachment |
| 157 | + end |
| 158 | + end |
| 159 | + |
| 160 | + def self.save_images(data, edition) |
| 161 | + lead_image = nil |
| 162 | + data["images"].each do |image_hash| |
| 163 | + image = import_image_and_its_variants(image_hash, edition) |
| 164 | + edition.images << image |
| 165 | + lead_image = image if image_hash["lead_image"] |
| 166 | + end |
| 167 | + edition.block_content["image"] = lead_image&.image_data_id.to_s || "" |
| 168 | + end |
| 169 | + |
| 170 | + def self.import_image_and_its_variants(image_hash, edition) |
| 171 | + original_variant = image_hash["variants"].find { |v| v["variant"] == "high_resolution" } |
| 172 | + uploader_identifier = File.basename(original_variant["file_url"]) |
| 173 | + image_data = ImageData.new( |
| 174 | + image_kind: "default", |
| 175 | + carrierwave_image: uploader_identifier, |
| 176 | + ) |
| 177 | + image_data.save!(validate: false) # no local file, so have to skip validation |
| 178 | + image_hash["variants"].each do |variant| |
| 179 | + import_image_variant(variant, image_data) |
| 180 | + end |
| 181 | + # Content Publisher exports a caption and a credit, but there is no credit in Whitehall. |
| 182 | + # We'll append the credit onto the caption as follows: |
| 183 | + # `caption` => "Foo" |
| 184 | + # `credit` => "Bar" |
| 185 | + # result => "Foo. Credit: Bar" |
| 186 | + caption_parts = [ |
| 187 | + image_hash["caption"].presence, |
| 188 | + image_hash["credit"].blank? ? nil : "Credit: #{image_hash['credit']}", |
| 189 | + ].compact |
| 190 | + caption = caption_parts.join(". ") |
| 191 | + Image.create!( |
| 192 | + alt_text: image_hash["alt_text"], |
| 193 | + caption: caption, |
| 194 | + edition: edition, |
| 195 | + image_data: image_data, |
| 196 | + created_at: image_hash["created_at"], |
| 197 | + updated_at: image_hash["updated_at"], |
| 198 | + ) |
| 199 | + end |
| 200 | + |
| 201 | + def self.import_image_variant(variant, image_data) |
| 202 | + variant_mappings = { |
| 203 | + "high_resolution" => "original", |
| 204 | + "960" => "s960", |
| 205 | + "300" => "s300", |
| 206 | + } |
| 207 | + variant_name = variant_mappings[variant["variant"]] |
| 208 | + raise "Unknown variant: #{variant['variant']}" unless variant_name |
| 209 | + |
| 210 | + Asset.create!( |
| 211 | + variant: variant_name, |
| 212 | + filename: File.basename(variant["file_url"]), |
| 213 | + asset_manager_id: variant["file_url"].match(%r{media/([^/]+)}).captures.first, |
| 214 | + assetable: image_data, |
| 215 | + ) |
| 216 | + end |
| 217 | + |
| 218 | + def self.robot_user |
| 219 | + User.find_by(name: "Scheduled Publishing Robot") |
| 220 | + end |
| 221 | +end |
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