mirror of
https://github.com/GSA/notifications-admin.git
synced 2026-02-21 02:44:42 -05:00
d86070a7e8
the upload preview page has a file_id - this corresponds to the file in the transient pdf uploads bucket. However, if the user already hit send (and then navigated back) the file's no longer in that bcuket, it's been moved to the regular letters-pdf bucket. So the s3 get request fails. To avoid this, simply redirect to the notifications page if the file isn't in the transient bucket. This is better for the user as it'll stop them trying to submit it twice, and will provide more clarity on the status of the notification too.
550 lines
18 KiB
Python
550 lines
18 KiB
Python
import base64
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import itertools
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import json
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import uuid
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from datetime import datetime
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from functools import partial
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from io import BytesIO
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from zipfile import BadZipFile
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from botocore.exceptions import ClientError
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from flask import (
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abort,
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current_app,
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flash,
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redirect,
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render_template,
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request,
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send_file,
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url_for,
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)
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from notifications_utils.columns import Columns
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from notifications_utils.pdf import pdf_page_count
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from notifications_utils.postal_address import PostalAddress
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from notifications_utils.recipients import RecipientCSV
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from notifications_utils.sanitise_text import SanitiseASCII
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from PyPDF2.utils import PdfReadError
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from requests import RequestException
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from xlrd.biffh import XLRDError
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from xlrd.xldate import XLDateError
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from app import (
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current_service,
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notification_api_client,
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service_api_client,
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upload_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 CsvUploadForm, LetterUploadPostageForm, PDFUploadForm
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from app.models.contact_list import ContactList
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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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Spreadsheet,
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generate_next_dict,
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generate_previous_dict,
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get_errors_for_csv,
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get_letter_printing_statement,
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get_letter_validation_error,
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get_page_from_request,
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get_sample_template,
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get_template,
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unicode_truncate,
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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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uploads = current_service.get_page_of_uploads(page=request.args.get('page'))
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prev_page = None
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if uploads.prev_page:
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prev_page = generate_previous_dict('main.uploads', service_id, uploads.current_page)
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next_page = None
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if uploads.next_page:
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next_page = generate_next_dict('main.uploads', service_id, uploads.current_page)
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if uploads.current_page == 1:
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listed_uploads = (
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current_service.contact_lists +
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current_service.scheduled_jobs +
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uploads
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)
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else:
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listed_uploads = uploads
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return render_template(
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'views/jobs/jobs.html',
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jobs=listed_uploads,
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prev_page=prev_page,
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next_page=next_page,
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now=datetime.utcnow().isoformat(),
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)
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@main.route("/services/<uuid:service_id>/uploaded-letters/<simple_date:letter_print_day>")
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@user_has_permissions()
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def uploaded_letters(service_id, letter_print_day):
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page = get_page_from_request()
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if page is None:
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abort(404, "Invalid page argument ({}).".format(request.args.get('page')))
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uploaded_letters = upload_api_client.get_letters_by_service_and_print_day(
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current_service.id, letter_print_day=letter_print_day, page=page,
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)
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prev_page = None
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if uploaded_letters['links'].get('prev'):
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prev_page = generate_previous_dict('.uploaded_letters', service_id, page, url_args={
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'letter_print_day': letter_print_day
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})
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next_page = None
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if uploaded_letters['links'].get('next'):
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next_page = generate_next_dict('.uploaded_letters', service_id, page, url_args={
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'letter_print_day': letter_print_day
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})
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return render_template(
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'views/uploads/uploaded-letters.html',
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notifications=add_preview_of_content_uploaded_letters(
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uploaded_letters['notifications']
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),
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prev_page=prev_page,
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next_page=next_page,
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show_pagination=True,
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total=uploaded_letters['total'],
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letter_printing_statement=get_letter_printing_statement(
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'created',
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letter_print_day,
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),
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letter_print_day=letter_print_day,
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single_notification_url=partial(
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url_for,
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'.view_notification',
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service_id=current_service.id,
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from_uploaded_letters=letter_print_day,
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)
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)
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def add_preview_of_content_uploaded_letters(notifications):
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for notification in notifications:
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yield(dict(
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preview_of_content=', '.join(notification.pop('to').splitlines()),
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to=notification['client_reference'],
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**notification
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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(
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BytesIO(pdf_file_bytes),
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allow_international_letters=current_service.has_permission(
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'international_letters'
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),
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)
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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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@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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try:
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metadata = get_letter_metadata(service_id, file_id)
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except ClientError as e:
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# if the file's not there, it's probably because we've already created the notification and the letter has been
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# moved to the normal letters-pdf bucket. So lets just bounce out to the notification page
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if e.response['Error']['Code'] == 'NoSuchKey':
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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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else:
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raise
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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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postal_address = PostalAddress(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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postage_zone=postal_address.postage
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)
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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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postal_address=postal_address,
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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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try:
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page = int(request.args.get('page'))
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except ValueError:
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abort(400)
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pdf_file, metadata = get_letter_pdf_and_metadata(service_id, file_id)
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invalid_pages = json.loads(metadata.get('invalid_pages', '[]'))
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if (
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metadata.get('message') == 'content-outside-printable-area' and
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page in invalid_pages
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):
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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/<uuid:file_id>", 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, file_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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metadata = get_letter_metadata(service_id, file_id)
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if metadata.get('status') != 'valid':
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abort(403)
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postal_address = PostalAddress(metadata.get('recipient'))
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form = LetterUploadPostageForm(
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postage_zone=postal_address.postage
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)
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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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notification_api_client.send_precompiled_letter(
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service_id,
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metadata.get('filename'),
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file_id,
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form.postage.data,
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postal_address.raw_address,
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)
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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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@main.route("/services/<uuid:service_id>/upload-contact-list", methods=['GET', 'POST'])
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@user_has_permissions('send_messages')
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def upload_contact_list(service_id):
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form = CsvUploadForm()
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if form.validate_on_submit():
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try:
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upload_id = ContactList.upload(
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current_service.id,
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Spreadsheet.from_file_form(form).as_dict,
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)
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return redirect(url_for(
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'.check_contact_list',
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service_id=service_id,
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upload_id=upload_id,
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original_file_name=form.file.data.filename,
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))
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except (UnicodeDecodeError, BadZipFile, XLRDError):
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flash('Could not read {}. Try using a different file format.'.format(
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form.file.data.filename
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))
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except (XLDateError):
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flash((
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'{} contains numbers or dates that Notify cannot understand. '
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'Try formatting all columns as ‘text’ or export your file as CSV.'
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).format(
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form.file.data.filename
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))
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return render_template(
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'views/uploads/contact-list/upload.html',
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form=form,
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)
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@main.route(
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"/services/<uuid:service_id>/check-contact-list/<uuid:upload_id>",
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methods=['GET', 'POST'],
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)
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@user_has_permissions('send_messages')
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def check_contact_list(service_id, upload_id):
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form = CsvUploadForm()
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contents = ContactList.download(service_id, upload_id)
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first_row = contents.splitlines()[0].strip().rstrip(',') if contents else ''
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template_type = {
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'emailaddress': 'email',
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'phonenumber': 'sms',
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}.get(Columns.make_key(first_row))
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original_file_name = SanitiseASCII.encode(request.args.get('original_file_name', ''))
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recipients = RecipientCSV(
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contents,
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template=get_sample_template(template_type or 'sms'),
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whitelist=itertools.chain.from_iterable(
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[user.name, user.mobile_number, user.email_address]
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for user in current_service.active_users
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) if current_service.trial_mode else None,
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allow_international_sms=current_service.has_permission('international_sms'),
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max_initial_rows_shown=50,
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max_errors_shown=50,
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)
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non_empty_column_headers = list(filter(None, recipients.column_headers))
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if len(non_empty_column_headers) > 1 or not template_type or not recipients:
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return render_template(
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'views/uploads/contact-list/too-many-columns.html',
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recipients=recipients,
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original_file_name=original_file_name,
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template_type=template_type,
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form=form,
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)
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if recipients.too_many_rows or not len(recipients):
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return render_template(
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'views/uploads/contact-list/column-errors.html',
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recipients=recipients,
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original_file_name=original_file_name,
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form=form,
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)
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row_errors = get_errors_for_csv(recipients, template_type)
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if row_errors:
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return render_template(
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'views/uploads/contact-list/row-errors.html',
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recipients=recipients,
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original_file_name=original_file_name,
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row_errors=row_errors,
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form=form,
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)
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if recipients.has_errors:
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return render_template(
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'views/uploads/contact-list/column-errors.html',
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recipients=recipients,
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original_file_name=original_file_name,
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form=form,
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)
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metadata_kwargs = {
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'row_count': len(recipients),
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'valid': True,
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'original_file_name': unicode_truncate(
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original_file_name,
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1600,
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),
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'template_type': template_type
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}
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ContactList.set_metadata(service_id, upload_id, **metadata_kwargs)
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return render_template(
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'views/uploads/contact-list/ok.html',
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recipients=recipients,
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original_file_name=original_file_name,
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upload_id=upload_id,
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)
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@main.route("/services/<uuid:service_id>/save-contact-list/<uuid:upload_id>", methods=['POST'])
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@user_has_permissions('send_messages')
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def save_contact_list(service_id, upload_id):
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ContactList.create(current_service.id, upload_id)
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return redirect(url_for(
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'.uploads',
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service_id=current_service.id,
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))
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@main.route("/services/<uuid:service_id>/contact-list/<uuid:contact_list_id>", methods=['GET'])
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@user_has_permissions('send_messages')
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def contact_list(service_id, contact_list_id):
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return render_template(
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'views/uploads/contact-list/contact-list.html',
|
||
contact_list=ContactList.from_id(contact_list_id, service_id=service_id),
|
||
)
|
||
|
||
|
||
@main.route("/services/<uuid:service_id>/contact-list/<uuid:contact_list_id>/delete", methods=['GET', 'POST'])
|
||
@user_has_permissions('manage_templates')
|
||
def delete_contact_list(service_id, contact_list_id):
|
||
contact_list = ContactList.from_id(contact_list_id, service_id=service_id)
|
||
|
||
if request.method == 'POST':
|
||
contact_list.delete()
|
||
return redirect(url_for(
|
||
'.uploads',
|
||
service_id=service_id,
|
||
))
|
||
|
||
flash([
|
||
f"Are you sure you want to delete ‘{contact_list.original_file_name}’?",
|
||
], 'delete')
|
||
|
||
return render_template(
|
||
'views/uploads/contact-list/contact-list.html',
|
||
contact_list=contact_list,
|
||
confirm_delete_banner=True,
|
||
)
|
||
|
||
|
||
@main.route("/services/<uuid:service_id>/contact-list/<uuid:contact_list_id>.csv", methods=['GET'])
|
||
@user_has_permissions('send_messages')
|
||
def download_contact_list(service_id, contact_list_id):
|
||
contact_list = ContactList.from_id(contact_list_id, service_id=service_id)
|
||
return send_file(
|
||
filename_or_fp=BytesIO(contact_list.contents.encode('utf-8')),
|
||
attachment_filename=contact_list.saved_file_name,
|
||
as_attachment=True,
|
||
)
|