mirror of
https://github.com/GSA/notifications-admin.git
synced 2026-08-01 12:19:47 -04:00
f8e7635a1d
Now persisting the address to the "to" field of the Notification, after the notification has been validated. If the letter is pending validation, then "Checking..." will appear as the identifier for the letter. If the letter has passed validation, then the first line of the address (now persisted in the "to" field) will be displayed, with the client reference underneath. If the letter has failed validation the "Provided as PDF" will show be displayed, which is now the initial value of the "to" field.
281 lines
9.0 KiB
Python
281 lines
9.0 KiB
Python
import base64
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import json
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import urllib
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import uuid
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from io import BytesIO
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from flask import (
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abort,
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current_app,
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redirect,
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render_template,
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request,
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url_for,
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)
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from notifications_utils.pdf import pdf_page_count
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from PyPDF2.utils import PdfReadError
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from requests import RequestException
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from app import (
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current_service,
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job_api_client,
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notification_api_client,
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service_api_client,
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)
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from app.extensions import antivirus_client
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from app.main import main
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from app.main.forms import LetterUploadPostageForm, PDFUploadForm
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from app.s3_client.s3_letter_upload_client import (
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get_letter_metadata,
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get_letter_pdf_and_metadata,
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get_transient_letter_file_location,
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upload_letter_to_s3,
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)
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from app.template_previews import TemplatePreview, sanitise_letter
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from app.utils import (
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generate_next_dict,
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generate_previous_dict,
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get_letter_validation_error,
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get_template,
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user_has_permissions,
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)
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MAX_FILE_UPLOAD_SIZE = 2 * 1024 * 1024 # 2MB
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@main.route("/services/<uuid:service_id>/uploads")
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@user_has_permissions()
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def uploads(service_id):
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# No tests have been written, this has been quickly prepared for user research.
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# It's also very like that a new view will be created to show uploads.
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page = int(request.args.get('page', 1))
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uploads_response = job_api_client.get_uploads(service_id, page=page)
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prev_page = None
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if uploads_response['links'].get('prev', None):
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prev_page = generate_previous_dict('main.uploads', service_id, page)
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next_page = None
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if uploads_response['links'].get('next', None):
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next_page = generate_next_dict('main.uploads', service_id, page)
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return render_template(
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'views/jobs/jobs.html',
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jobs=uploads_response['data'],
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page=page,
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prev_page=prev_page,
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next_page=next_page,
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scheduled_jobs='',
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)
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@main.route("/services/<uuid:service_id>/upload-letter", methods=['GET', 'POST'])
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@user_has_permissions('send_messages')
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def upload_letter(service_id):
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form = PDFUploadForm()
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error = {}
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if form.validate_on_submit():
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pdf_file_bytes = form.file.data.read()
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original_filename = form.file.data.filename
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if current_app.config['ANTIVIRUS_ENABLED']:
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virus_free = antivirus_client.scan(BytesIO(pdf_file_bytes))
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if not virus_free:
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return invalid_upload_error('Your file contains a virus')
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if len(pdf_file_bytes) > MAX_FILE_UPLOAD_SIZE:
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return invalid_upload_error('Your file is too big', 'Files must be smaller than 2MB.')
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try:
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# TODO: get page count from the sanitise response once template preview handles malformed files nicely
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page_count = pdf_page_count(BytesIO(pdf_file_bytes))
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except PdfReadError:
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current_app.logger.info('Invalid PDF uploaded for service_id: {}'.format(service_id))
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return invalid_upload_error(
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"There’s a problem with your file",
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'Notify cannot read this PDF.<br>Save a new copy of your file and try again.'
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)
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upload_id = uuid.uuid4()
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file_location = get_transient_letter_file_location(service_id, upload_id)
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try:
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response = sanitise_letter(BytesIO(pdf_file_bytes))
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response.raise_for_status()
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except RequestException as ex:
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if ex.response is not None and ex.response.status_code == 400:
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validation_failed_message = response.json().get('message')
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invalid_pages = response.json().get('invalid_pages')
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status = 'invalid'
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upload_letter_to_s3(
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pdf_file_bytes,
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file_location=file_location,
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status=status,
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page_count=page_count,
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filename=original_filename,
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message=validation_failed_message,
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invalid_pages=invalid_pages)
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else:
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raise ex
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else:
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response = response.json()
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recipient = response['recipient_address']
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status = 'valid'
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file_contents = base64.b64decode(response['file'].encode())
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upload_letter_to_s3(
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file_contents,
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file_location=file_location,
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status=status,
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page_count=page_count,
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filename=original_filename,
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recipient=recipient)
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return redirect(
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url_for(
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'main.uploaded_letter_preview',
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service_id=current_service.id,
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file_id=upload_id,
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)
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)
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if form.file.errors:
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error = _get_error_from_upload_form(form.file.errors[0])
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return render_template(
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'views/uploads/choose-file.html',
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error=error,
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form=form
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)
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def invalid_upload_error(error_title, error_detail=None):
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return render_template(
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'views/uploads/choose-file.html',
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error={'title': error_title, 'detail': error_detail},
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form=PDFUploadForm()
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), 400
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def _get_error_from_upload_form(form_errors):
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error = {}
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if 'PDF' in form_errors:
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error['title'] = 'Wrong file type'
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error['detail'] = form_errors
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else: # No file was uploaded error
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error['title'] = form_errors
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return error
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def format_recipient(address):
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'''
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To format the recipient we need to:
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- decode, address is url encoded
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- remove new line characters
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- remove whitespace around the lines
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- join the address lines, separated by a comma
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'''
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if not address:
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return address
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address = urllib.parse.unquote(address)
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stripped_address_lines_no_trailing_commas = [
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line.lstrip().rstrip(' ,')
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for line in address.splitlines() if line
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]
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one_line_address = ', '.join(stripped_address_lines_no_trailing_commas)
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return one_line_address
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@main.route("/services/<uuid:service_id>/preview-letter/<uuid:file_id>")
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@user_has_permissions('send_messages')
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def uploaded_letter_preview(service_id, file_id):
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re_upload_form = PDFUploadForm()
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metadata = get_letter_metadata(service_id, file_id)
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original_filename = metadata.get('filename')
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page_count = metadata.get('page_count')
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status = metadata.get('status')
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error_shortcode = metadata.get('message')
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invalid_pages = metadata.get('invalid_pages')
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recipient = format_recipient(metadata.get('recipient'))
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if invalid_pages:
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invalid_pages = json.loads(invalid_pages)
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error_message = get_letter_validation_error(error_shortcode, invalid_pages, page_count)
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template_dict = service_api_client.get_precompiled_template(service_id)
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# Override pre compiled letter template postage to none as it has not yet been picked even though
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# the pre compiled letter template has its postage set as second class as the DB currently requires
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# a non null value of postage for letter templates
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template_dict['postage'] = None
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form = LetterUploadPostageForm()
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template = get_template(
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template_dict,
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service_id,
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letter_preview_url=url_for(
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'.view_letter_upload_as_preview',
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service_id=service_id,
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file_id=file_id
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),
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page_count=page_count
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)
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return render_template(
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'views/uploads/preview.html',
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original_filename=original_filename,
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template=template,
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status=status,
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file_id=file_id,
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message=error_message,
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error_code=error_shortcode,
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form=form,
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recipient=recipient,
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re_upload_form=re_upload_form
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)
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@main.route("/services/<uuid:service_id>/preview-letter-image/<uuid:file_id>")
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@user_has_permissions('send_messages')
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def view_letter_upload_as_preview(service_id, file_id):
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pdf_file, metadata = get_letter_pdf_and_metadata(service_id, file_id)
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page = request.args.get('page')
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if metadata.get('message') == 'content-outside-printable-area':
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return TemplatePreview.from_invalid_pdf_file(pdf_file, page)
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else:
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return TemplatePreview.from_valid_pdf_file(pdf_file, page)
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@main.route("/services/<uuid:service_id>/upload-letter/send", methods=['POST'])
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@user_has_permissions('send_messages', restrict_admin_usage=True)
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def send_uploaded_letter(service_id):
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if not (current_service.has_permission('letter') and current_service.has_permission('upload_letters')):
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abort(403)
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form = LetterUploadPostageForm()
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file_id = form.file_id.data
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if not form.validate_on_submit():
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return uploaded_letter_preview(service_id, file_id)
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postage = form.postage.data
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metadata = get_letter_metadata(service_id, file_id)
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filename = metadata.get('filename')
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recipient_address = metadata.get('recipient')
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if metadata.get('status') != 'valid':
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abort(403)
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notification_api_client.send_precompiled_letter(service_id, filename, file_id, postage, recipient_address)
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return redirect(url_for(
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'.view_notification',
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service_id=service_id,
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notification_id=file_id,
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))
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