mirror of
https://github.com/GSA/notifications-admin.git
synced 2026-07-03 07:58:59 -04:00
888821d1b4
> When the CSV is missing the header row, we get an error and the user > will see "Sorry, we are experiencing technical difficulties..." > > We should return a better error message for the user. – https://www.pivotaltracker.com/story/show/140668615 This was caused by an attempt to access the `first_recipient` variable before it was assigned. It would only be assigned when there was at least one row in the file. Fixing this means doing two things: - defaulting `first_recipient` to be `None` before looking in the file - adding an error message for when we can’t extract any rows out of the file (which is more nuanced than the file just being completely empty) (There’s a nasty `sort` in the Jinja template because when there are no rows in the file the order of the required column headers is not deterministic.)
416 lines
16 KiB
Python
416 lines
16 KiB
Python
import itertools
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from string import ascii_uppercase
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from contextlib import suppress
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from zipfile import BadZipFile
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from xlrd.biffh import XLRDError
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from werkzeug.routing import RequestRedirect
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from flask import (
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request,
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render_template,
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redirect,
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url_for,
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flash,
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abort,
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session,
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current_app,
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send_file,
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)
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from flask_login import login_required, current_user
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from flask_weasyprint import HTML, render_pdf
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from notifications_utils.columns import Columns
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from notifications_utils.recipients import RecipientCSV, first_column_headings, validate_and_format_phone_number
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from app.main import main
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from app.main.forms import CsvUploadForm, ChooseTimeForm, get_furthest_possible_scheduled_time
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from app.main.uploader import (
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s3upload,
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s3download
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)
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from app import job_api_client, service_api_client, current_service, user_api_client
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from app.utils import (
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user_has_permissions,
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get_errors_for_csv,
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Spreadsheet,
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get_help_argument,
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get_template,
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png_from_pdf,
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)
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def get_page_headings(template_type):
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return {
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'email': 'Email templates',
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'sms': 'Text message templates',
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'letter': 'Letter templates'
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}[template_type]
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def get_example_csv_fields(column_headers, use_example_as_example, submitted_fields):
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if use_example_as_example:
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return ["example" for header in column_headers]
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elif submitted_fields:
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return [submitted_fields.get(header) for header in column_headers]
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else:
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return list(column_headers)
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def get_example_csv_rows(template, use_example_as_example=True, submitted_fields=False):
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return {
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'email': ['test@example.com'] if use_example_as_example else [current_user.email_address],
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'sms': ['07700 900321'] if use_example_as_example else [validate_and_format_phone_number(
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current_user.mobile_number, human_readable=True
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)],
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'letter': [
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(submitted_fields or {}).get(
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key, get_example_letter_address(key) if use_example_as_example else key
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)
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for key in first_column_headings['letter']
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]
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}[template.template_type] + get_example_csv_fields(template.placeholders, use_example_as_example, submitted_fields)
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def get_example_letter_address(key):
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return {
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'address line 1': 'A. Name',
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'address line 2': '123 Example Street',
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'address line 3': 'Example town',
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'postcode': 'XM4 5HQ'
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}.get(key, '')
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@main.route("/services/<service_id>/send/<template_type>", methods=['GET'])
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@login_required
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@user_has_permissions('view_activity',
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'send_texts',
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'send_emails',
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'manage_templates',
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'manage_api_keys',
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admin_override=True, any_=True)
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def choose_template(service_id, template_type):
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if template_type not in ['email', 'sms', 'letter']:
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abort(404)
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if not current_service['can_send_letters'] and template_type == 'letter':
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abort(403)
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return render_template(
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'views/templates/choose.html',
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templates=[
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get_template(
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template,
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current_service,
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letter_preview_url=url_for('.view_template', service_id=service_id, template_id=template['id']),
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)
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for template in service_api_client.get_service_templates(service_id)['data']
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if template['template_type'] == template_type
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],
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template_type=template_type,
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page_heading=get_page_headings(template_type)
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)
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@main.route("/services/<service_id>/send/<template_id>/csv", methods=['GET', 'POST'])
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@login_required
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@user_has_permissions('send_texts', 'send_emails', 'send_letters')
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def send_messages(service_id, template_id):
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template = get_template(
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service_api_client.get_service_template(service_id, template_id)['data'],
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current_service,
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show_recipient=True,
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letter_preview_url=url_for('.view_template', service_id=service_id, template_id=template_id),
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)
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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 = s3upload(
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service_id,
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Spreadsheet.from_file(form.file.data, filename=form.file.data.filename).as_dict,
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current_app.config['AWS_REGION']
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)
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session['upload_data'] = {
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"template_id": template_id,
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"original_file_name": form.file.data.filename
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}
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return redirect(url_for('.check_messages',
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service_id=service_id,
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upload_id=upload_id,
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template_type=template.template_type))
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except (UnicodeDecodeError, BadZipFile, XLRDError):
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flash('Couldn’t read {}. Try using a different file format.'.format(
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form.file.data.filename
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))
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column_headings = first_column_headings[template.template_type] + list(template.placeholders)
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return render_template(
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'views/send.html',
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template=template,
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column_headings=list(ascii_uppercase[:len(column_headings)]),
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example=[column_headings, get_example_csv_rows(template)],
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form=form
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)
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@main.route("/services/<service_id>/send/<template_id>.csv", methods=['GET'])
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@login_required
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@user_has_permissions('send_texts', 'send_emails', 'send_letters', 'manage_templates', any_=True)
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def get_example_csv(service_id, template_id):
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template = get_template(
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service_api_client.get_service_template(service_id, template_id)['data'], current_service
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)
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return Spreadsheet.from_rows([
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first_column_headings[template.template_type] + list(template.placeholders),
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get_example_csv_rows(template)
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]).as_csv_data, 200, {
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'Content-Type': 'text/csv; charset=utf-8',
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'Content-Disposition': 'inline; filename="{}.csv"'.format(template.name)
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}
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@main.route("/services/<service_id>/send/<template_id>/test", methods=['GET', 'POST'])
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@login_required
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@user_has_permissions('send_texts', 'send_emails', 'send_letters')
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def send_test(service_id, template_id):
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file_name = current_app.config['TEST_MESSAGE_FILENAME']
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template = get_template(
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service_api_client.get_service_template(service_id, template_id)['data'],
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current_service,
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show_recipient=True,
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letter_preview_url=url_for('.view_template', service_id=service_id, template_id=template_id),
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)
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if len(template.placeholders) == 0 or request.method == 'POST':
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upload_id = s3upload(
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service_id,
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{
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'file_name': file_name,
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'data': Spreadsheet.from_rows([
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first_column_headings[template.template_type] + list(template.placeholders),
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get_example_csv_rows(template, use_example_as_example=False, submitted_fields=request.form)
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]).as_csv_data
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},
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current_app.config['AWS_REGION']
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)
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session['upload_data'] = {
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"template_id": template_id,
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"original_file_name": file_name
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}
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return redirect(url_for(
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'.check_messages',
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upload_id=upload_id,
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service_id=service_id,
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template_type=template.template_type,
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from_test=True,
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help=2 if request.args.get('help') else 0
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))
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return render_template(
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'views/send-test.html',
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template=template,
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recipient_columns=first_column_headings[template.template_type],
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example=[get_example_csv_rows(template, use_example_as_example=False)],
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help=get_help_argument()
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)
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@main.route("/services/<service_id>/send/<template_id>/from-api", methods=['GET'])
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@login_required
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def send_from_api(service_id, template_id):
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return render_template(
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'views/send-from-api.html',
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template=get_template(
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service_api_client.get_service_template(service_id, template_id)['data'],
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current_service,
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letter_preview_url=url_for('.view_template', service_id=service_id, template_id=template_id)
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)
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)
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def _check_messages(service_id, template_type, upload_id, letters_as_pdf=False):
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if not session.get('upload_data'):
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# if we just return a `redirect` (302) object here, we'll get errors when we try and unpack in the
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# check_messages route - so raise a werkzeug.routing redirect to ensure that doesn't happen.
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# NOTE: this is a 301 MOVED PERMANENTLY (httpstatus.es/301), so the browser will cache this redirect, and it'll
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# *always* happen for that browser. _check_messages is only used by endpoints that contain `upload_id`, which
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# is a one-time-use id (that ties to a given file in S3 that is already deleted if it's not in the session)
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raise RequestRedirect(get_check_messages_back_url(service_id, template_type))
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users = user_api_client.get_users_for_service(service_id=service_id)
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statistics = service_api_client.get_detailed_service_for_today(service_id)['data']['statistics']
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remaining_messages = (current_service['message_limit'] - sum(stat['requested'] for stat in statistics.values()))
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contents = s3download(service_id, upload_id)
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template = get_template(
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service_api_client.get_service_template(
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service_id,
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session['upload_data'].get('template_id')
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)['data'],
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current_service,
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show_recipient=True,
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letter_preview_url=url_for(
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'.check_messages',
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service_id=service_id,
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template_type=template_type,
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upload_id=upload_id
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) if not letters_as_pdf else None
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)
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recipients = RecipientCSV(
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contents,
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template_type=template.template_type,
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placeholders=template.placeholders,
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max_initial_rows_shown=50,
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max_errors_shown=50,
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whitelist=itertools.chain.from_iterable(
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[user.name, user.mobile_number, user.email_address] for user in users
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) if current_service['restricted'] else None,
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remaining_messages=remaining_messages
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)
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if request.args.get('from_test'):
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extra_args = {'help': 1} if request.args.get('help', '0') != '0' else {}
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if len(template.placeholders):
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back_link = url_for(
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'.send_test', service_id=service_id, template_id=template.id, **extra_args
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)
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else:
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back_link = url_for(
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'.choose_template', service_id=service_id, template_type=template.template_type, **extra_args
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)
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choose_time_form = None
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else:
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back_link = url_for('.send_messages', service_id=service_id, template_id=template.id)
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choose_time_form = ChooseTimeForm()
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with suppress(StopIteration):
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first_recipient = None
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template.values = next(recipients.rows)
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first_recipient = template.values.get(
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Columns.make_key(recipients.recipient_column_headers[0]),
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''
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)
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session['upload_data']['notification_count'] = len(list(recipients.rows))
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session['upload_data']['valid'] = not recipients.has_errors
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return dict(
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recipients=recipients,
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first_recipient=first_recipient,
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template=template,
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errors=recipients.has_errors,
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row_errors=get_errors_for_csv(recipients, template.template_type),
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count_of_recipients=session['upload_data']['notification_count'],
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count_of_displayed_recipients=(
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len(list(recipients.initial_annotated_rows_with_errors))
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if any(recipients.rows_with_errors) and not recipients.missing_column_headers else
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len(list(recipients.initial_annotated_rows))
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),
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original_file_name=session['upload_data'].get('original_file_name'),
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upload_id=upload_id,
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form=CsvUploadForm(),
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remaining_messages=remaining_messages,
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choose_time_form=choose_time_form,
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back_link=back_link,
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help=get_help_argument()
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)
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@main.route("/services/<service_id>/<template_type>/check/<upload_id>", methods=['GET'])
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@login_required
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@user_has_permissions('send_texts', 'send_emails', 'send_letters')
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def check_messages(service_id, template_type, upload_id):
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return render_template(
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'views/check.html',
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**_check_messages(service_id, template_type, upload_id)
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)
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@main.route("/services/<service_id>/<template_type>/check/<upload_id>.pdf", methods=['GET'])
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@login_required
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@user_has_permissions('send_texts', 'send_emails', 'send_letters')
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def check_messages_as_pdf(service_id, template_type, upload_id):
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template = _check_messages(
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service_id, template_type, upload_id, letters_as_pdf=True
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)['template']
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return render_pdf(HTML(string=str(template)))
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@main.route("/services/<service_id>/<template_type>/check/<upload_id>.png", methods=['GET'])
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@login_required
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@user_has_permissions('send_texts', 'send_emails', 'send_letters')
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def check_messages_as_png(service_id, template_type, upload_id):
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return send_file(**png_from_pdf(
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check_messages_as_pdf(service_id, template_type, upload_id)
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))
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@main.route("/services/<service_id>/<template_type>/check/<upload_id>", methods=['POST'])
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@login_required
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@user_has_permissions('send_texts', 'send_emails', 'send_letters')
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def recheck_messages(service_id, template_type, upload_id):
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if not session.get('upload_data'):
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return redirect(url_for('main.choose_template', service_id=service_id, template_type=template_type))
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return send_messages(service_id, session['upload_data'].get('template_id'))
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@main.route("/services/<service_id>/start-job/<upload_id>", methods=['POST'])
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@login_required
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@user_has_permissions('send_texts', 'send_emails', 'send_letters')
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def start_job(service_id, upload_id):
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upload_data = session['upload_data']
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if request.files or not upload_data.get('valid'):
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# The csv was invalid, validate the csv again
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return send_messages(service_id, upload_data.get('template_id'))
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session.pop('upload_data')
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job_api_client.create_job(
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upload_id,
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service_id,
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upload_data.get('template_id'),
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upload_data.get('original_file_name'),
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upload_data.get('notification_count'),
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scheduled_for=request.form.get('scheduled_for', '')
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)
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return redirect(
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url_for('main.view_job', job_id=upload_id, service_id=service_id, help=request.form.get('help'))
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)
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@main.route("/services/<service_id>/end-tour/<example_template_id>")
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@login_required
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@user_has_permissions('manage_templates')
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def go_to_dashboard_after_tour(service_id, example_template_id):
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service_api_client.delete_service_template(service_id, example_template_id)
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return redirect(
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url_for('main.service_dashboard', service_id=service_id)
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)
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def get_check_messages_back_url(service_id, template_type):
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if get_help_argument():
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# if the user is on the introductory tour, then they should be redirected back to the beginning of the tour -
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# but to do that we need to find the template_id of the example template. That template *should* be the only
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# template for that service, but it's possible they've opened another tab and deleted it for example. In that
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# case we should just redirect back to the main page as they clearly know what they're doing.
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templates = service_api_client.get_service_templates(service_id)['data']
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if len(templates) == 1:
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return url_for('.send_test', service_id=service_id, template_id=templates[0]['id'], help=1)
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return url_for('main.choose_template', service_id=service_id, template_type=template_type)
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