Mitigate problems for people who run without -n (#3916)

* CLI flag for forcing interactivity

* add --force-interactive

* Add force_interactive error checking and tests

* Add force_interactive parameter to FileDisplay

* add _can_interact

* Add _return_default

* Add **unused_kwargs to NoninteractiveDisplay

* improve _return_default assertion

* Change IDisplay calls and write tests

* Document force_interactive in interfaces.py

* Don't force_interactive with a new prompt

* Warn when skipping an interaction for the first time

* add specific logger.debug message

certbot-apache/certbot_apache/configurator.py

@@ -463,7 +463,7 @@ class ApacheConfigurator(augeas_configurator.AugeasConfigurator):
             zope.component.getUtility(interfaces.IDisplay).notification(
                 "Apache mod_macro seems to be in use in file(s):\n{0}"
                 "\n\nUnfortunately mod_macro is not yet supported".format(
-                    "\n  ".join(vhost_macro)))
+                    "\n  ".join(vhost_macro)), force_interactive=True)
 
         return all_names
 

certbot-apache/certbot_apache/display_ops.py

@@ -85,7 +85,8 @@ def _vhost_menu(domain, vhosts):
             "or Address of {0}.{1}Which virtual host would you "
             "like to choose?\n(note: conf files with multiple "
             "vhosts are not yet supported)".format(domain, os.linesep),
-            choices, help_label="More Info", ok_label="Select")
+            choices, help_label="More Info",
+            ok_label="Select", force_interactive=True)
     except errors.MissingCommandlineFlag:
         msg = ("Encountered vhost ambiguity but unable to ask for user guidance in "
                "non-interactive mode. Currently Certbot needs each vhost to be "
@@ -100,4 +101,5 @@ def _vhost_menu(domain, vhosts):
 def _more_info_vhost(vhost):
     zope.component.getUtility(interfaces.IDisplay).notification(
         "Virtual Host Information:{0}{1}{0}{2}".format(
-            os.linesep, "-" * (display_util.WIDTH - 4), str(vhost)))
+            os.linesep, "-" * (display_util.WIDTH - 4), str(vhost)),
+        force_interactive=True)

certbot-apache/certbot_apache/tests/display_ops_test.py

@@ -17,7 +17,8 @@ class SelectVhostTest(unittest.TestCase):
     """Tests for certbot_apache.display_ops.select_vhost."""
 
     def setUp(self):
-        zope.component.provideUtility(display_util.FileDisplay(sys.stdout))
+        zope.component.provideUtility(display_util.FileDisplay(sys.stdout,
+                                                               False))
         self.base_dir = "/example_path"
         self.vhosts = util.get_vh_truth(
             self.base_dir, "debian_apache_2_4/multiple_vhosts")

certbot-apache/certbot_apache/tests/util.py

@@ -64,7 +64,8 @@ class ParserTest(ApacheTest):  # pytlint: disable=too-few-public-methods
               vhost_root="debian_apache_2_4/multiple_vhosts/apache2/sites-available"):
         super(ParserTest, self).setUp(test_dir, config_root, vhost_root)
 
-        zope.component.provideUtility(display_util.FileDisplay(sys.stdout))
+        zope.component.provideUtility(display_util.FileDisplay(sys.stdout,
+                                                               False))
 
         from certbot_apache.parser import ApacheParser
         self.aug = augeas.Augeas(

certbot/cert_manager.py

@@ -47,8 +47,9 @@ def rename_lineage(config):
 
     new_certname = config.new_certname
     if not new_certname:
-        code, new_certname = disp.input("Enter the new name for certificate {0}"
-            .format(certname), flag="--updated-cert-name")
+        code, new_certname = disp.input(
+            "Enter the new name for certificate {0}".format(certname),
+            flag="--updated-cert-name", force_interactive=True)
         if code != display_util.OK or not new_certname:
             raise errors.Error("User ended interaction.")
 

certbot/cli.py

@@ -521,8 +521,17 @@ class HelpfulArgumentParser(object):
         # Do any post-parsing homework here
 
         if self.verb == "renew":
+            if parsed_args.force_interactive:
+                raise errors.Error(
+                    "{0} cannot be used with renew".format(
+                        constants.FORCE_INTERACTIVE_FLAG))
             parsed_args.noninteractive_mode = True
 
+        if parsed_args.force_interactive and parsed_args.noninteractive_mode:
+            raise errors.Error(
+                "Flag for non-interactive mode and {0} conflict".format(
+                    constants.FORCE_INTERACTIVE_FLAG))
+
         if parsed_args.staging or parsed_args.dry_run:
             self.set_test_server(parsed_args)
 
@@ -808,6 +817,12 @@ def prepare_and_parse_args(plugins, args, detect_defaults=False):  # pylint: dis
         help="Run without ever asking for user input. This may require "
               "additional command line flags; the client will try to explain "
               "which ones are required if it finds one missing")
+    helpful.add(
+        [None, "register", "run", "certonly"],
+        constants.FORCE_INTERACTIVE_FLAG, action="store_true",
+        help="Force Certbot to be interactive even if it detects it's not "
+             "being run in a terminal. This flag cannot be used with the "
+             "renew subcommand.")
     helpful.add(
         [None, "run", "certonly"],
         "-d", "--domains", "--domain", dest="domains",

certbot/constants.py

@@ -92,3 +92,6 @@ TEMP_CHECKPOINT_DIR = "temp_checkpoint"
 
 RENEWAL_CONFIGS_DIR = "renewal"
 """Renewal configs directory, relative to `IConfig.config_dir`."""
+
+FORCE_INTERACTIVE_FLAG = "--force-interactive"
+"""Flag to disable TTY checking in IDisplay."""

certbot/display/enhancements.py

@@ -48,7 +48,8 @@ def redirect_by_default():
 
     code, selection = util(interfaces.IDisplay).menu(
         "Please choose whether HTTPS access is required or optional.",
-        choices, default=0, cli_flag="--redirect / --no-redirect")
+        choices, default=0,
+        cli_flag="--redirect / --no-redirect", force_interactive=True)
 
     if code != display_util.OK:
         return False

certbot/display/ops.py

@@ -46,7 +46,8 @@ def get_email(invalid=False, optional=True):
     while True:
         try:
             code, email = z_util(interfaces.IDisplay).input(
-                invalid_prefix + msg if invalid else msg)
+                invalid_prefix + msg if invalid else msg,
+                force_interactive=True)
         except errors.MissingCommandlineFlag:
             msg = ("You should register before running non-interactively, "
                    "or provide --agree-tos and --email <email_address> flags.")
@@ -79,7 +80,7 @@ def choose_account(accounts):
     labels = [acc.slug for acc in accounts]
 
     code, index = z_util(interfaces.IDisplay).menu(
-        "Please choose an account", labels)
+        "Please choose an account", labels, force_interactive=True)
     if code == display_util.OK:
         return accounts[index]
     else:
@@ -157,7 +158,7 @@ def _filter_names(names):
 
     code, names = z_util(interfaces.IDisplay).checklist(
         "Which names would you like to activate HTTPS for?",
-        tags=sorted_names, cli_flag="--domains")
+        tags=sorted_names, cli_flag="--domains", force_interactive=True)
     return code, [str(s) for s in names]
 
 
@@ -173,7 +174,7 @@ def _choose_names_manually(prompt_prefix=""):
     code, input_ = z_util(interfaces.IDisplay).input(
         prompt_prefix +
         "Please enter in your domain name(s) (comma and/or space separated) ",
-        cli_flag="--domains")
+        cli_flag="--domains", force_interactive=True)
 
     if code == display_util.OK:
         invalid_domains = dict()
@@ -211,7 +212,8 @@ def _choose_names_manually(prompt_prefix=""):
 
         if retry_message:
             # We had error in input
-            retry = z_util(interfaces.IDisplay).yesno(retry_message)
+            retry = z_util(interfaces.IDisplay).yesno(retry_message,
+                                                      force_interactive=True)
             if retry:
                 return _choose_names_manually()
         else:

certbot/display/util.py

@@ -1,14 +1,18 @@
 """Certbot display."""
+import logging
 import os
 import textwrap
+import sys
 
 import six
 import zope.interface
 
+from certbot import constants
 from certbot import interfaces
 from certbot import errors
 from certbot.display import completer
 
+logger = logging.getLogger(__name__)
 
 WIDTH = 72
 
@@ -50,19 +54,25 @@ def _wrap_lines(msg):
 @zope.interface.implementer(interfaces.IDisplay)
 class FileDisplay(object):
     """File-based display."""
+    # pylint: disable=too-many-arguments
+    # see https://github.com/certbot/certbot/issues/3915
 
-    def __init__(self, outfile):
+    def __init__(self, outfile, force_interactive):
         super(FileDisplay, self).__init__()
         self.outfile = outfile
+        self.force_interactive = force_interactive
+        self.skipped_interaction = False
 
-    def notification(self, message, pause=True, wrap=True):
-        # pylint: disable=unused-argument
+    def notification(self, message, pause=True,
+                     wrap=True, force_interactive=False):
         """Displays a notification and waits for user acceptance.
 
         :param str message: Message to display
         :param bool pause: Whether or not the program should pause for the
             user's confirmation
         :param bool wrap: Whether or not the application should wrap text
+        :param bool force_interactive: True if it's safe to prompt the user
+            because it won't cause any workflow regressions
 
         """
         side_frame = "-" * 79
@@ -72,10 +82,14 @@ class FileDisplay(object):
             "{line}{frame}{line}{msg}{line}{frame}{line}".format(
                 line=os.linesep, frame=side_frame, msg=message))
         if pause:
-            six.moves.input("Press Enter to Continue")
+            if self._can_interact(force_interactive):
+                six.moves.input("Press Enter to Continue")
+            else:
+                logger.debug("Not pausing for user confirmation")
 
     def menu(self, message, choices, ok_label="", cancel_label="",
-             help_label="", **unused_kwargs):
+             help_label="", default=None,
+             cli_flag=None, force_interactive=False, **unused_kwargs):
         # pylint: disable=unused-argument
         """Display a menu.
 
@@ -86,7 +100,10 @@ class FileDisplay(object):
         :param choices: Menu lines, len must be > 0
         :type choices: list of tuples (tag, item) or
             list of descriptions (tags will be enumerated)
-        :param dict _kwargs: absorbs default / cli_args
+        :param default: default value to return (if one exists)
+        :param str cli_flag: option used to set this value with the CLI
+        :param bool force_interactive: True if it's safe to prompt the user
+            because it won't cause any workflow regressions
 
         :returns: tuple of (`code`, `index`) where
             `code` - str display exit code
@@ -95,18 +112,25 @@ class FileDisplay(object):
         :rtype: tuple
 
         """
+        if self._return_default(message, default, cli_flag, force_interactive):
+            return OK, default
+
         self._print_menu(message, choices)
 
         code, selection = self._get_valid_int_ans(len(choices))
 
         return code, selection - 1
 
-    def input(self, message, **unused_kwargs):
+    def input(self, message, default=None,
+              cli_flag=None, force_interactive=False, **unused_kwargs):
         # pylint: disable=no-self-use
         """Accept input from the user.
 
         :param str message: message to display to the user
-        :param dict _kwargs: absorbs default / cli_args
+        :param default: default value to return (if one exists)
+        :param str cli_flag: option used to set this value with the CLI
+        :param bool force_interactive: True if it's safe to prompt the user
+            because it won't cause any workflow regressions
 
         :returns: tuple of (`code`, `input`) where
             `code` - str display exit code
@@ -114,6 +138,9 @@ class FileDisplay(object):
         :rtype: tuple
 
         """
+        if self._return_default(message, default, cli_flag, force_interactive):
+            return OK, default
+
         ans = six.moves.input(
             textwrap.fill(
                 "%s (Enter 'c' to cancel): " % message,
@@ -126,7 +153,8 @@ class FileDisplay(object):
         else:
             return OK, ans
 
-    def yesno(self, message, yes_label="Yes", no_label="No", **unused_kwargs):
+    def yesno(self, message, yes_label="Yes", no_label="No", default=None,
+              cli_flag=None, force_interactive=False, **unused_kwargs):
         """Query the user with a yes/no question.
 
         Yes and No label must begin with different letters, and must contain at
@@ -135,12 +163,18 @@ class FileDisplay(object):
         :param str message: question for the user
         :param str yes_label: Label of the "Yes" parameter
         :param str no_label: Label of the "No" parameter
-        :param dict _kwargs: absorbs default / cli_args
+        :param default: default value to return (if one exists)
+        :param str cli_flag: option used to set this value with the CLI
+        :param bool force_interactive: True if it's safe to prompt the user
+            because it won't cause any workflow regressions
 
         :returns: True for "Yes", False for "No"
         :rtype: bool
 
         """
+        if self._return_default(message, default, cli_flag, force_interactive):
+            return default
+
         side_frame = ("-" * 79) + os.linesep
 
         message = _wrap_lines(message)
@@ -162,14 +196,18 @@ class FileDisplay(object):
                     ans.startswith(no_label[0].upper())):
                 return False
 
-    def checklist(self, message, tags, default_status=True, **unused_kwargs):
+    def checklist(self, message, tags, default_status=True, default=None,
+                  cli_flag=None, force_interactive=False, **unused_kwargs):
         # pylint: disable=unused-argument
         """Display a checklist.
 
         :param str message: Message to display to user
         :param list tags: `str` tags to select, len(tags) > 0
         :param bool default_status: Not used for FileDisplay
-        :param dict _kwargs: absorbs default / cli_args
+        :param default: default value to return (if one exists)
+        :param str cli_flag: option used to set this value with the CLI
+        :param bool force_interactive: True if it's safe to prompt the user
+            because it won't cause any workflow regressions
 
         :returns: tuple of (`code`, `tags`) where
             `code` - str display exit code
@@ -177,6 +215,9 @@ class FileDisplay(object):
         :rtype: tuple
 
         """
+        if self._return_default(message, default, cli_flag, force_interactive):
+            return OK, default
+
         while True:
             self._print_menu(message, tags)
 
@@ -197,10 +238,65 @@ class FileDisplay(object):
             else:
                 return code, []
 
-    def directory_select(self, message, **unused_kwargs):
+    def _return_default(self, prompt, default, cli_flag, force_interactive):
+        """Should we return the default instead of prompting the user?
+
+        :param str prompt: prompt for the user
+        :param default: default answer to prompt
+        :param str cli_flag: command line option for setting an answer
+            to this question
+        :param bool force_interactive: if interactivity is forced by the
+            IDisplay call
+
+        :returns: True if we should return the default without prompting
+        :rtype: bool
+
+        """
+        msg = "Invalid IDisplay call for this prompt:\n{0}".format(prompt)
+        if cli_flag:
+            msg += ("\nYou can set an answer to "
+                    "this prompt with the {0} flag".format(cli_flag))
+        assert default is not None or force_interactive, msg
+
+        if self._can_interact(force_interactive):
+            return False
+        else:
+            logger.debug(
+                "Falling back to default %s for the prompt:\n%s",
+                default, prompt)
+            return True
+
+    def _can_interact(self, force_interactive):
+        """Can we safely interact with the user?
+
+        :param bool force_interactive: if interactivity is forced by the
+            IDisplay call
+
+        :returns: True if the display can interact with the user
+        :rtype: bool
+
+        """
+        if (self.force_interactive or force_interactive or
+                sys.stdin.isatty() and self.outfile.isatty()):
+            return True
+        elif not self.skipped_interaction:
+            logger.warning(
+                "Skipped user interaction because Certbot doesn't appear to "
+                "be running in a terminal. You should probably include "
+                "--non-interactive or %s on the command line.",
+                constants.FORCE_INTERACTIVE_FLAG)
+            self.skipped_interaction = True
+        return False
+
+    def directory_select(self, message, default=None, cli_flag=None,
+                         force_interactive=False, **unused_kwargs):
         """Display a directory selection screen.
 
         :param str message: prompt to give the user
+        :param default: default value to return (if one exists)
+        :param str cli_flag: option used to set this value with the CLI
+        :param bool force_interactive: True if it's safe to prompt the user
+            because it won't cause any workflow regressions
 
         :returns: tuple of the form (`code`, `string`) where
             `code` - display exit code
@@ -208,7 +304,7 @@ class FileDisplay(object):
 
         """
         with completer.Completer():
-            return self.input(message)
+            return self.input(message, default, cli_flag, force_interactive)
 
     def _scrub_checklist_input(self, indices, tags):
         # pylint: disable=no-self-use
@@ -310,7 +406,7 @@ class FileDisplay(object):
 class NoninteractiveDisplay(object):
     """An iDisplay implementation that never asks for interactive user input"""
 
-    def __init__(self, outfile):
+    def __init__(self, outfile, *unused_args, **unused_kwargs):
         super(NoninteractiveDisplay, self).__init__()
         self.outfile = outfile
 
@@ -324,7 +420,7 @@ class NoninteractiveDisplay(object):
             msg += "\n\n(You can set this with the {0} flag)".format(cli_flag)
         raise errors.MissingCommandlineFlag(msg)
 
-    def notification(self, message, pause=False, wrap=True):
+    def notification(self, message, pause=False, wrap=True, **unused_kwargs):
         # pylint: disable=unused-argument
         """Displays a notification without waiting for user acceptance.
 
@@ -341,7 +437,7 @@ class NoninteractiveDisplay(object):
                 line=os.linesep, frame=side_frame, msg=message))
 
     def menu(self, message, choices, ok_label=None, cancel_label=None,
-             help_label=None, default=None, cli_flag=None):
+             help_label=None, default=None, cli_flag=None, *unused_kwargs):
         # pylint: disable=unused-argument,too-many-arguments
         """Avoid displaying a menu.
 
@@ -364,7 +460,7 @@ class NoninteractiveDisplay(object):
 
         return OK, default
 
-    def input(self, message, default=None, cli_flag=None):
+    def input(self, message, default=None, cli_flag=None, **unused_kwargs):
         """Accept input from the user.
 
         :param str message: message to display to the user
@@ -381,7 +477,8 @@ class NoninteractiveDisplay(object):
         else:
             return OK, default
 
-    def yesno(self, message, yes_label=None, no_label=None, default=None, cli_flag=None):
+    def yesno(self, message, yes_label=None, no_label=None,
+              default=None, cli_flag=None, **unused_kwargs):
         # pylint: disable=unused-argument
         """Decide Yes or No, without asking anybody
 
@@ -398,8 +495,8 @@ class NoninteractiveDisplay(object):
         else:
             return default
 
-    def checklist(self, message, tags, default=None, cli_flag=None, **kwargs):
-        # pylint: disable=unused-argument
+    def checklist(self, message, tags, default=None,
+                  cli_flag=None, **unused_kwargs):
         """Display a checklist.
 
         :param str message: Message to display to user
@@ -417,7 +514,8 @@ class NoninteractiveDisplay(object):
         else:
             return OK, default
 
-    def directory_select(self, message, default=None, cli_flag=None):
+    def directory_select(self, message, default=None,
+                         cli_flag=None, **unused_kwargs):
         """Simulate prompting the user for a directory.
 
         This function returns default if it is not ``None``, otherwise,

certbot/interfaces.py

@@ -361,21 +361,29 @@ class IInstaller(IPlugin):
 
 class IDisplay(zope.interface.Interface):
     """Generic display."""
+    # pylint: disable=too-many-arguments
+    # see https://github.com/certbot/certbot/issues/3915
 
-    def notification(message, pause, wrap=True):
+    def notification(message, pause, wrap=True, force_interactive=False):
         """Displays a string message
 
         :param str message: Message to display
         :param bool pause: Whether or not the application should pause for
             confirmation (if available)
         :param bool wrap: Whether or not the application should wrap text
+        :param bool force_interactive: True if it's safe to prompt the user
+            because it won't cause any workflow regressions
 
         """
 
-    def menu(message, choices, ok_label="OK",      # pylint: disable=too-many-arguments
-             cancel_label="Cancel", help_label="", default=None, cli_flag=None):
+    def menu(message, choices, ok_label="OK",
+             cancel_label="Cancel", help_label="",
+             default=None, cli_flag=None, force_interactive=False):
         """Displays a generic menu.
 
+        When not setting force_interactive=True, you must provide a
+        default value.
+
         :param str message: message to display
 
         :param choices: choices
@@ -386,6 +394,8 @@ class IDisplay(zope.interface.Interface):
         :param str help_label: label for Help button
         :param int default: default (non-interactive) choice from the menu
         :param str cli_flag: to automate choice from the menu, eg "--keep"
+        :param bool force_interactive: True if it's safe to prompt the user
+            because it won't cause any workflow regressions
 
         :returns: tuple of (`code`, `index`) where
             `code` - str display exit code
@@ -396,10 +406,16 @@ class IDisplay(zope.interface.Interface):
 
         """
 
-    def input(message, default=None, cli_args=None):
+    def input(message, default=None, cli_args=None, force_interactive=False):
         """Accept input from the user.
 
+        When not setting force_interactive=True, you must provide a
+        default value.
+
         :param str message: message to display to the user
+        :param str default: default (non-interactive) response to prompt
+        :param bool force_interactive: True if it's safe to prompt the user
+            because it won't cause any workflow regressions
 
         :returns: tuple of (`code`, `input`) where
             `code` - str display exit code
@@ -412,14 +428,19 @@ class IDisplay(zope.interface.Interface):
         """
 
     def yesno(message, yes_label="Yes", no_label="No", default=None,
-              cli_args=None):
+              cli_args=None, force_interactive=False):
         """Query the user with a yes/no question.
 
         Yes and No label must begin with different letters.
 
+        When not setting force_interactive=True, you must provide a
+        default value.
+
         :param str message: question for the user
         :param str default: default (non-interactive) choice from the menu
         :param str cli_flag: to automate choice from the menu, eg "--redirect / --no-redirect"
+        :param bool force_interactive: True if it's safe to prompt the user
+            because it won't cause any workflow regressions
 
         :returns: True for "Yes", False for "No"
         :rtype: bool
@@ -429,14 +450,20 @@ class IDisplay(zope.interface.Interface):
 
         """
 
-    def checklist(message, tags, default_state, default=None, cli_args=None):
+    def checklist(message, tags, default_state,
+                  default=None, cli_args=None, force_interactive=False):
         """Allow for multiple selections from a menu.
 
+        When not setting force_interactive=True, you must provide a
+        default value.
+
         :param str message: message to display to the user
         :param list tags: where each is of type :class:`str` len(tags) > 0
         :param bool default_status: If True, items are in a selected state by default.
         :param str default: default (non-interactive) state of the checklist
         :param str cli_flag: to automate choice from the menu, eg "--domains"
+        :param bool force_interactive: True if it's safe to prompt the user
+            because it won't cause any workflow regressions
 
         :returns: tuple of the form (code, list_tags) where
             `code` - int display exit code
@@ -448,15 +475,21 @@ class IDisplay(zope.interface.Interface):
 
         """
 
-    def directory_select(self, message, default=None, cli_flag=None):
+    def directory_select(self, message, default=None,
+                         cli_flag=None, force_interactive=False):
         """Display a directory selection screen.
 
+        When not setting force_interactive=True, you must provide a
+        default value.
+
         :param str message: prompt to give the user
         :param default: the default value to return, if one exists, when
             using the NoninteractiveDisplay
         :param str cli_flag: option used to set this value with the CLI,
             if one exists, to be included in error messages given by
             NoninteractiveDisplay
+        :param bool force_interactive: True if it's safe to prompt the user
+            because it won't cause any workflow regressions
 
         :returns: tuple of the form (`code`, `string`) where
             `code` - int display exit code

certbot/main.py

@@ -139,7 +139,8 @@ def _handle_subset_cert_request(config, domains, cert):
              br=os.linesep)
     if config.expand or config.renew_by_default or zope.component.getUtility(
             interfaces.IDisplay).yesno(question, "Expand", "Cancel",
-                                       cli_flag="--expand"):
+                                       cli_flag="--expand",
+                                       force_interactive=True):
         return "renew", cert
     else:
         reporter_util = zope.component.getUtility(interfaces.IReporter)
@@ -188,7 +189,8 @@ def _handle_identical_cert_request(config, lineage):
                "Renew & replace the cert (limit ~5 per 7 days)"]
 
     display = zope.component.getUtility(interfaces.IDisplay)
-    response = display.menu(question, choices, "OK", "Cancel", default=0)
+    response = display.menu(question, choices, "OK", "Cancel",
+                            default=0, force_interactive=True)
     if response[0] == display_util.CANCEL:
         # TODO: Add notification related to command-line options for
         #       skipping the menu for this case.
@@ -365,7 +367,8 @@ def _determine_account(config):
                        "server at {1}".format(
                            regr.terms_of_service, config.server))
                 obj = zope.component.getUtility(interfaces.IDisplay)
-                return obj.yesno(msg, "Agree", "Cancel", cli_flag="--agree-tos")
+                return obj.yesno(msg, "Agree", "Cancel",
+                                 cli_flag="--agree-tos", force_interactive=True)
 
             try:
                 acc, acme = client.register(
@@ -788,7 +791,8 @@ def set_displayer(config):
     elif config.noninteractive_mode:
         displayer = display_util.NoninteractiveDisplay(sys.stdout)
     else:
-        displayer = display_util.FileDisplay(sys.stdout)
+        displayer = display_util.FileDisplay(sys.stdout,
+                                             config.force_interactive)
     zope.component.provideUtility(displayer)
 
 

certbot/plugins/manual.py

@@ -251,7 +251,8 @@ s.serve_forever()" """
         if not (self.conf("test-mode") or self.conf("public-ip-logging-ok")):
             if not zope.component.getUtility(interfaces.IDisplay).yesno(
                     self.IP_DISCLAIMER, "Yes", "No",
-                    cli_flag="--manual-public-ip-logging-ok"):
+                    cli_flag="--manual-public-ip-logging-ok",
+                    force_interactive=True):
                 raise errors.PluginError("Must agree to IP logging to proceed")
             else:
                 self.config.namespace.manual_public_ip_logging_ok = True

certbot/plugins/selection.py

@@ -111,7 +111,8 @@ def choose_plugin(prepared, question):
 
     while True:
         disp = z_util(interfaces.IDisplay)
-        code, index = disp.menu(question, opts, help_label="More Info")
+        code, index = disp.menu(
+            question, opts, help_label="More Info", force_interactive=True)
 
         if code == display_util.OK:
             plugin_ep = prepared[index]
@@ -127,7 +128,8 @@ def choose_plugin(prepared, question):
                 msg = "Reported Error: %s" % prepared[index].prepare()
             else:
                 msg = prepared[index].init().more_info()
-            z_util(interfaces.IDisplay).notification(msg)
+            z_util(interfaces.IDisplay).notification(msg,
+                                                     force_interactive=True)
         else:
             return None
 

certbot/plugins/selection_test.py

@@ -110,7 +110,8 @@ class ChoosePluginTest(unittest.TestCase):
     """Tests for certbot.plugins.selection.choose_plugin."""
 
     def setUp(self):
-        zope.component.provideUtility(display_util.FileDisplay(sys.stdout))
+        zope.component.provideUtility(display_util.FileDisplay(sys.stdout,
+                                                               False))
         self.mock_apache = mock.Mock(
             description_with_name="a", misconfigured=True)
         self.mock_stand = mock.Mock(

certbot/plugins/standalone.py

@@ -243,13 +243,13 @@ class Authenticator(common.Plugin):
                     "Could not bind TCP port {0} because you don't have "
                     "the appropriate permissions (for example, you "
                     "aren't running this program as "
-                    "root).".format(error.port))
+                    "root).".format(error.port), force_interactive=True)
             elif error.socket_error.errno == socket.errno.EADDRINUSE:
                 display.notification(
                     "Could not bind TCP port {0} because it is already in "
                     "use by another process on this system (such as a web "
                     "server). Please stop the program in question and then "
-                    "try again.".format(error.port))
+                    "try again.".format(error.port), force_interactive=True)
             else:
                 raise  # XXX: How to handle unknown errors in binding?
 

certbot/plugins/util.py

@@ -103,7 +103,7 @@ def already_listening_socket(port, renewer=False):
                 "Port {0} is already in use by another process. This will "
                 "prevent us from binding to that port. Please stop the "
                 "process that is populating the port in question and try "
-                "again. {1}".format(port, extra))
+                "again. {1}".format(port, extra), force_interactive=True)
             return True
         finally:
             testsocket.close()
@@ -151,7 +151,8 @@ def already_listening_psutil(port, renewer=False):
                 "The program {0} (process ID {1}) is already listening "
                 "on TCP port {2}. This will prevent us from binding to "
                 "that port. Please stop the {0} program temporarily "
-                "and then try again.{3}".format(name, pid, port, extra))
+                "and then try again.{3}".format(name, pid, port, extra),
+                force_interactive=True)
             return True
     except (psutil.NoSuchProcess, psutil.AccessDenied):
         # Perhaps the result of a race where the process could have

certbot/plugins/webroot.py

@@ -129,7 +129,8 @@ to serve all files under specified web root ({0})."""
                     "public_html or webroot directory. The webroot "
                     "plugin works by temporarily saving necessary "
                     "resources in the HTTP server's webroot directory "
-                    "to pass domain validation challenges.")
+                    "to pass domain validation challenges.",
+                    force_interactive=True)
             else:  # code == display_util.OK
                 return None if index == 0 else known_webroots[index - 1]
 
@@ -138,7 +139,8 @@ to serve all files under specified web root ({0})."""
 
         while True:
             code, webroot = display.directory_select(
-                "Input the webroot for {0}:".format(domain))
+                "Input the webroot for {0}:".format(domain),
+                force_interactive=True)
             if code == display_util.HELP:
                 # Displaying help is not currently implemented
                 return None

certbot/reverter.py

@@ -181,7 +181,7 @@ class Reverter(object):
         if for_logging:
             return os.linesep.join(output)
         zope.component.getUtility(interfaces.IDisplay).notification(
-            os.linesep.join(output))
+            os.linesep.join(output), force_interactive=True)
 
     def add_to_temp_checkpoint(self, save_files, save_notes):
         """Add files to temporary checkpoint.

certbot/tests/cli_test.py

@@ -262,6 +262,12 @@ class ParseTest(unittest.TestCase):
         self.assertFalse(cli.option_was_set(
             config_dir_option, cli.flag_default(config_dir_option)))
 
+    def test_force_interactive(self):
+        self.assertRaises(
+            errors.Error, self.parse, "renew --force-interactive".split())
+        self.assertRaises(
+            errors.Error, self.parse, "-n --force-interactive".split())
+
 
 class DefaultTest(unittest.TestCase):
     """Tests for certbot.cli._Default."""

certbot/tests/display/ops_test.py

@@ -84,7 +84,8 @@ class GetEmailTest(unittest.TestCase):
 class ChooseAccountTest(unittest.TestCase):
     """Tests for certbot.display.ops.choose_account."""
     def setUp(self):
-        zope.component.provideUtility(display_util.FileDisplay(sys.stdout))
+        zope.component.provideUtility(display_util.FileDisplay(sys.stdout,
+                                                               False))
 
         self.accounts_dir = tempfile.mkdtemp("accounts")
         self.account_keys_dir = os.path.join(self.accounts_dir, "keys")
@@ -127,7 +128,8 @@ class ChooseAccountTest(unittest.TestCase):
 class GenSSLLabURLs(unittest.TestCase):
     """Loose test of _gen_ssl_lab_urls. URL can change easily in the future."""
     def setUp(self):
-        zope.component.provideUtility(display_util.FileDisplay(sys.stdout))
+        zope.component.provideUtility(display_util.FileDisplay(sys.stdout,
+                                                               False))
 
     @classmethod
     def _call(cls, domains):
@@ -146,7 +148,8 @@ class GenSSLLabURLs(unittest.TestCase):
 class GenHttpsNamesTest(unittest.TestCase):
     """Test _gen_https_names."""
     def setUp(self):
-        zope.component.provideUtility(display_util.FileDisplay(sys.stdout))
+        zope.component.provideUtility(display_util.FileDisplay(sys.stdout,
+                                                               False))
 
     @classmethod
     def _call(cls, domains):
@@ -193,7 +196,8 @@ class GenHttpsNamesTest(unittest.TestCase):
 class ChooseNamesTest(unittest.TestCase):
     """Test choose names."""
     def setUp(self):
-        zope.component.provideUtility(display_util.FileDisplay(sys.stdout))
+        zope.component.provideUtility(display_util.FileDisplay(sys.stdout,
+                                                               False))
         self.mock_install = mock.MagicMock()
 
     @classmethod

certbot/tests/display/util_test.py

@@ -20,10 +20,11 @@ class FileOutputDisplayTest(unittest.TestCase):
     functions look to a user, uncomment the test_visual function.
 
     """
+    # pylint:disable=too-many-public-methods
     def setUp(self):
         super(FileOutputDisplayTest, self).setUp()
         self.mock_stdout = mock.MagicMock()
-        self.displayer = display_util.FileDisplay(self.mock_stdout)
+        self.displayer = display_util.FileDisplay(self.mock_stdout, False)
 
     def test_notification_no_pause(self):
         self.displayer.notification("message", False)
@@ -33,56 +34,84 @@ class FileOutputDisplayTest(unittest.TestCase):
 
     def test_notification_pause(self):
         with mock.patch("six.moves.input", return_value="enter"):
-            self.displayer.notification("message")
+            self.displayer.notification("message", force_interactive=True)
 
         self.assertTrue("message" in self.mock_stdout.write.call_args[0][0])
 
+    def test_notification_noninteractive(self):
+        self._force_noninteractive(self.displayer.notification, "message")
+        string = self.mock_stdout.write.call_args[0][0]
+        self.assertTrue("message" in string)
+
     @mock.patch("certbot.display.util."
                 "FileDisplay._get_valid_int_ans")
     def test_menu(self, mock_ans):
         mock_ans.return_value = (display_util.OK, 1)
-        ret = self.displayer.menu("message", CHOICES)
+        ret = self.displayer.menu("message", CHOICES, force_interactive=True)
         self.assertEqual(ret, (display_util.OK, 0))
 
     def test_input_cancel(self):
         with mock.patch("six.moves.input", return_value="c"):
-            code, _ = self.displayer.input("message")
+            code, _ = self.displayer.input("message", force_interactive=True)
 
         self.assertTrue(code, display_util.CANCEL)
 
     def test_input_normal(self):
         with mock.patch("six.moves.input", return_value="domain.com"):
-            code, input_ = self.displayer.input("message")
+            code, input_ = self.displayer.input("message", force_interactive=True)
 
         self.assertEqual(code, display_util.OK)
         self.assertEqual(input_, "domain.com")
 
+    def test_input_noninteractive(self):
+        default = "foo"
+        code, input_ = self._force_noninteractive(
+            self.displayer.input, "message", default=default)
+
+        self.assertEqual(code, display_util.OK)
+        self.assertEqual(input_, default)
+
+    def test_input_assertion_fail(self):
+        self.assertRaises(AssertionError, self._force_noninteractive,
+                          self.displayer.input, "message", cli_flag="--flag")
+
     def test_yesno(self):
         with mock.patch("six.moves.input", return_value="Yes"):
-            self.assertTrue(self.displayer.yesno("message"))
+            self.assertTrue(self.displayer.yesno(
+                "message", force_interactive=True))
         with mock.patch("six.moves.input", return_value="y"):
-            self.assertTrue(self.displayer.yesno("message"))
+            self.assertTrue(self.displayer.yesno(
+                "message", force_interactive=True))
         with mock.patch("six.moves.input", side_effect=["maybe", "y"]):
-            self.assertTrue(self.displayer.yesno("message"))
+            self.assertTrue(self.displayer.yesno(
+                "message", force_interactive=True))
         with mock.patch("six.moves.input", return_value="No"):
-            self.assertFalse(self.displayer.yesno("message"))
+            self.assertFalse(self.displayer.yesno(
+                "message", force_interactive=True))
         with mock.patch("six.moves.input", side_effect=["cancel", "n"]):
-            self.assertFalse(self.displayer.yesno("message"))
+            self.assertFalse(self.displayer.yesno(
+                "message", force_interactive=True))
 
         with mock.patch("six.moves.input", return_value="a"):
-            self.assertTrue(self.displayer.yesno("msg", yes_label="Agree"))
+            self.assertTrue(self.displayer.yesno(
+                "msg", yes_label="Agree", force_interactive=True))
+
+    def test_yesno_noninteractive(self):
+        self.assertTrue(self._force_noninteractive(
+            self.displayer.yesno, "message", default=True))
 
     @mock.patch("certbot.display.util.FileDisplay.input")
     def test_checklist_valid(self, mock_input):
         mock_input.return_value = (display_util.OK, "2 1")
-        code, tag_list = self.displayer.checklist("msg", TAGS)
+        code, tag_list = self.displayer.checklist(
+            "msg", TAGS, force_interactive=True)
         self.assertEqual(
             (code, set(tag_list)), (display_util.OK, set(["tag1", "tag2"])))
 
     @mock.patch("certbot.display.util.FileDisplay.input")
     def test_checklist_empty(self, mock_input):
         mock_input.return_value = (display_util.OK, "")
-        code, tag_list = self.displayer.checklist("msg", TAGS)
+        code, tag_list = self.displayer.checklist("msg", TAGS, force_interactive=True)
         self.assertEqual(
             (code, set(tag_list)), (display_util.OK, set(["tag1", "tag2", "tag3"])))
 
@@ -94,7 +123,7 @@ class FileOutputDisplayTest(unittest.TestCase):
             (display_util.OK, "1")
         ]
 
-        ret = self.displayer.checklist("msg", TAGS)
+        ret = self.displayer.checklist("msg", TAGS, force_interactive=True)
         self.assertEqual(ret, (display_util.OK, ["tag1"]))
 
     @mock.patch("certbot.display.util.FileDisplay.input")
@@ -103,9 +132,17 @@ class FileOutputDisplayTest(unittest.TestCase):
             (display_util.OK, "10"),
             (display_util.CANCEL, "1")
         ]
-        ret = self.displayer.checklist("msg", TAGS)
+        ret = self.displayer.checklist("msg", TAGS, force_interactive=True)
         self.assertEqual(ret, (display_util.CANCEL, []))
 
+    def test_checklist_noninteractive(self):
+        default = TAGS
+        code, input_ = self._force_noninteractive(
+            self.displayer.checklist, "msg", TAGS, default=default)
+
+        self.assertEqual(code, display_util.OK)
+        self.assertEqual(input_, default)
+
     def test_scrub_checklist_input_valid(self):
         # pylint: disable=protected-access
         indices = [
@@ -125,12 +162,36 @@ class FileOutputDisplayTest(unittest.TestCase):
 
     @mock.patch("certbot.display.util.FileDisplay.input")
     def test_directory_select(self, mock_input):
-        message = "msg"
-        result = (display_util.OK, "/var/www/html",)
+        # pylint: disable=star-args
+        args = ["msg", "/var/www/html", "--flag", True]
+        result = (display_util.OK, "/var/www/html")
         mock_input.return_value = result
 
-        self.assertEqual(self.displayer.directory_select(message), result)
-        mock_input.assert_called_once_with(message)
+        self.assertEqual(self.displayer.directory_select(*args), result)
+        mock_input.assert_called_once_with(*args)
+
+    def test_directory_select_noninteractive(self):
+        default = "/var/www/html"
+        code, input_ = self._force_noninteractive(
+            self.displayer.directory_select, "msg", default=default)
+
+        self.assertEqual(code, display_util.OK)
+        self.assertEqual(input_, default)
+
+    def _force_noninteractive(self, func, *args, **kwargs):
+        skipped_interaction = self.displayer.skipped_interaction
+
+        with mock.patch("certbot.display.util.sys.stdin") as mock_stdin:
+            mock_stdin.isatty.return_value = False
+            with mock.patch("certbot.display.util.logger") as mock_logger:
+                result = func(*args, **kwargs)
+
+        if skipped_interaction:
+            self.assertFalse(mock_logger.warning.called)
+        else:
+            self.assertEqual(mock_logger.warning.call_count, 1)
+
+        return result
 
     def test_scrub_checklist_input_invalid(self):
         # pylint: disable=protected-access

tests/display.py

@@ -18,5 +18,5 @@ def test_visual(displayer, choices):
 
 
 if __name__ == "__main__":
-    displayer = util.FileDisplay(sys.stdout):
+    displayer = util.FileDisplay(sys.stdout, False)
     test_visual(displayer, util_test.CHOICES)