mirror of https://github.com/docusealco/docuseal
Pete Matsyburka
2 weeks ago
parent
785eb789ad
commit
f9669b0e16
@ -1,40 +0,0 @@
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# frozen_string_literal: true
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module Templates
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module BuildAnnotations
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module_function
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def call(data)
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pdf = HexaPDF::Document.new(io: StringIO.new(data))
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pdf.pages.flat_map.with_index do |page, index|
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(page[:Annots] || []).filter_map do |annot|
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next if annot.blank?
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next if annot.is_a?(Integer) || annot.is_a?(Symbol) || annot.is_a?(HexaPDF::PDFArray)
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next if annot[:A].blank? || annot[:A][:URI].blank?
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next unless annot[:Subtype] == :Link
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next if !annot[:A][:URI].starts_with?('https://') && !annot[:A][:URI].starts_with?('http://')
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build_external_link_hash(page, annot).merge('page' => index)
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end
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end
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rescue StandardError => e
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Rollbar.error(e) if defined?(Rollbar)
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[]
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end
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def build_external_link_hash(page, annot)
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left, bottom, right, top = annot[:Rect]
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{
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'type' => 'external_link',
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'value' => annot[:A][:URI],
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'x' => left / page.box.width.to_f,
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'y' => (page.box.height - top) / page.box.height.to_f,
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'w' => (right - left) / page.box.width.to_f,
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'h' => (top - bottom) / page.box.height.to_f
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}
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end
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end
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end
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@ -1,288 +0,0 @@
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# frozen_string_literal: true
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module Templates
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module FindAcroFields
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PDF_CONTENT_TYPE = 'application/pdf'
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FIELD_NAME_REGEXP = /\A(?=.*\p{L})[\p{L}\d\s-]+\z/
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SKIP_FIELD_DESCRIPTION = %w[undefined].freeze
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SELECT_PLACEHOLDER_REGEXP = /\b(
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Select |
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Choose |
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Wählen |
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Auswählen |
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Sélectionner|
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Choisir |
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Seleccionar |
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Elegir |
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Seleziona |
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Scegliere |
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Selecionar |
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Escolher
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)\b/ix
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DATE_FORMAT_REGEXP = %r{[myd]{2,4}[-\\/\s.][myd]{2,4}[-\\/\s.][myd]{2,4}}i
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FIELD_ALIGNMENT = {
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0 => 'left',
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1 => 'center',
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2 => 'right'
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}.freeze
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module_function
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# rubocop:disable Metrics
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def call(pdf, attachment, data)
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return [] if pdf.acro_form.blank? && data.exclude?('/Form')
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fields, annots_index = build_fields_with_pages(pdf)
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fields.filter_map do |field|
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areas = Array.wrap(field[:Kids] || field).filter_map do |child_field|
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page = annots_index[child_field.hash]
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next unless page
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media_box = page[:CropBox] || page[:MediaBox]
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crop_box = page[:CropBox] || media_box
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media_box_start = [media_box[0], media_box[1]]
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crop_shift = [crop_box[0] - media_box[0], crop_box[1] - media_box[1]]
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next unless child_field[:Rect]
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x0, y0, x1, y1 = child_field[:Rect]
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x0, y0 = correct_coordinates(x0, y0, crop_shift, media_box_start)
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x1, y1 = correct_coordinates(x1, y1, crop_shift, media_box_start)
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page_width = media_box[2] - media_box[0]
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page_height = media_box[3] - media_box[1]
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x = x0
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y = y0
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w = x1 - x0
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h = y1 - y0
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transformed_y = page_height - y - h
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attrs = {
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page: page.index,
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x: x / page_width.to_f,
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y: transformed_y / page_height.to_f,
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w: w / page_width.to_f,
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h: h / page_height.to_f,
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attachment_uuid: attachment.uuid
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}
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next if attrs[:w].zero? || attrs[:h].zero?
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if child_field[:MaxLen] && child_field.try(:concrete_field_type) == :comb_text_field
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attrs[:cell_w] = w / page_width.to_f / child_field[:MaxLen].to_f
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end
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attrs
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end
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next if areas.blank?
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field_properties = build_field_properties(field)
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next if field_properties.blank?
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next if field_properties[:default_value].present?
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if field_properties[:type].in?(%w[radio multiple])
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if areas.size != field_properties[:options].size
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field_properties[:options] = build_options(Array.new(areas.size, ''))
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end
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areas.each_with_index do |area, index|
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area[:option_uuid] = field_properties[:options][index][:uuid]
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end
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end
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{
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uuid: SecureRandom.uuid,
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required: field.flags.include?(:required),
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preferences: {},
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areas:,
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**field_properties
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}
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end
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rescue StandardError => e
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raise if Rails.env.local?
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Rollbar.error(e) if defined?(Rollbar)
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[]
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end
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def correct_coordinates(x_coord, y_coord, shift, media_box_start)
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corrected_x = x_coord + shift[0] - media_box_start[0]
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corrected_y = y_coord + shift[1] - media_box_start[1]
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[corrected_x, corrected_y]
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end
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def build_field_properties(field)
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field_name = field.full_field_name if field.full_field_name.to_s.match?(FIELD_NAME_REGEXP)
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field_name = field_name&.encode('utf-8', invalid: :replace, undef: :replace, replace: '')
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attrs = { name: field_name.to_s }
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attrs[:description] = field[:TU] if field[:TU].present? &&
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field[:TU] != field.full_field_name &&
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!field[:TU].in?(SKIP_FIELD_DESCRIPTION)
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if field[:Q].present? && field.field_type == :Tx
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attrs[:preferences] ||= {}
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attrs[:preferences][:align] = FIELD_ALIGNMENT.fetch(field[:Q], 'left')
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end
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if field.field_type == :Btn && field.concrete_field_type == :radio_button && field[:Opt].present?
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selected_option_index = (field.allowed_values || []).find_index(field.field_value)
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selected_option = field[:Opt][selected_option_index] if selected_option_index
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{
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**attrs,
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type: 'radio',
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options: build_options(field[:Opt], 'radio'),
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default_value: selected_option
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}
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elsif field.field_type == :Btn && %i[check_box radio_button].include?(field.concrete_field_type) &&
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field[:Kids].present? && field[:Kids].size > 1 && field.allowed_values.size > 1
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selected_option = (field.allowed_values || []).find { |v| v == field.field_value }
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return {} if field.allowed_values.include?(:BBox)
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{
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**attrs,
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type: 'radio',
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options: build_options(field.allowed_values, 'radio'),
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default_value: selected_option
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}
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elsif field.field_type == :Btn && %i[check_box radio_button].include?(field.concrete_field_type)
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{
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**attrs,
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type: 'checkbox',
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default_value: field.field_value.present?
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}
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elsif field.field_type == :Ch &&
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%i[combo_box editable_combo_box].include?(field.concrete_field_type) && field[:Opt].present?
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{
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**attrs,
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type: 'select',
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options: build_options(field[:Opt], 'select'),
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default_value: field.field_value.to_s.match?(SELECT_PLACEHOLDER_REGEXP) ? nil : field.field_value.presence
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}
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elsif field.field_type == :Ch && field.concrete_field_type == :multi_select && field[:Opt].present?
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{
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**attrs,
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type: 'multiple',
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options: build_options(field[:Opt], 'multiple'),
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default_value: field.field_value.presence
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}
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elsif field.field_type == :Tx && field.concrete_field_type == :comb_text_field
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{
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**attrs,
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type: 'cells',
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default_value: field.field_value.presence
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}
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elsif field.field_type == :Tx
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if field[:AA] && ((field[:AA][:F] && field[:AA][:F][:JS].include?('AFDate_')) ||
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(field[:AA][:K] && field[:AA][:K][:JS].include?('AFDate_')))
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if (format = field[:AA][:F][:JS][DATE_FORMAT_REGEXP])
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attrs[:preferences] ||= {}
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attrs[:preferences][:format] = format.upcase
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end
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{
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**attrs,
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type: 'date',
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default_value: field.field_value.presence
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}
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else
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{
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**attrs,
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type: 'text',
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default_value: field.field_value.presence
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}
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end
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elsif field.field_type == :Sig
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{
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**attrs,
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type: field.try(:field_name).to_s.downcase.include?('initials') ? 'initials' : 'signature'
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}
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else
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{}
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end.compact
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end
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def build_options(values, type = nil)
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is_skip_single_value = type.in?(%w[radio multiple]) && values.uniq.size == 1
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values.filter_map do |option|
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is_option_number = option.is_a?(Symbol) && option.to_s.match?(/\A\d+\z/)
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option = option[1] if option.is_a?(Array) && option.size == 2
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if option.is_a?(String) || option.is_a?(Symbol)
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option = option.to_s.encode('utf-8', invalid: :replace, undef: :replace, replace: '')
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end
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next if type == 'select' && option.to_s.match?(SELECT_PLACEHOLDER_REGEXP)
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{
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uuid: SecureRandom.uuid,
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value: is_option_number || is_skip_single_value ? '' : option.presence
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}
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end
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end
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def build_fields_with_pages(pdf)
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fields_index = {}
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annots_index = {}
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pdf.pages.each do |page|
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page.each_annotation do |annot|
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annots_index[annot.hash] = page
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if !annot.key?(:Parent) && annot.key?(:FT)
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fields_index[annot.hash] ||= HexaPDF::Type::AcroForm::Field.wrap(pdf, annot)
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elsif annot.key?(:Parent)
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field = annot[:Parent]
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seen = Set.new.compare_by_identity
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field = field[:Parent] while field[:Parent] && seen.add?(field.value)
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annots_index[field.hash] ||= page
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fields_index[field.hash] ||= HexaPDF::Type::AcroForm::Field.wrap(pdf, field)
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end
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end
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end
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[process_fields_array(pdf, fields_index.values), annots_index]
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end
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def process_fields_array(pdf, array, acc = [], seen = Set.new.compare_by_identity)
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array.each_with_index do |field, index|
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next if field.nil?
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unless field.respond_to?(:type) && field.type == :XXAcroFormField
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array[index] = field = HexaPDF::Type::AcroForm::Field.wrap(pdf, field)
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end
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next unless seen.add?(field.value)
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if field.terminal_field?
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acc << field
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else
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process_fields_array(pdf, field[:Kids], acc, seen)
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end
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end
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acc
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end
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# rubocop:enable Metrics
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end
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end
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