1 files changed, 175 insertions, 0 deletions
diff --git a/src/leap/eip/exceptions.py b/src/leap/eip/exceptions.py
new file mode 100644
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+++ b/src/leap/eip/exceptions.py
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+"""
+Generic error hierarchy
+Leap/EIP exceptions used for exception handling,
+logging, and notifying user of errors
+during leap operation.
+
+Exception hierarchy
+-------------------
+All EIP Errors must inherit from EIPClientError (note: move that to
+a more generic LEAPClientBaseError).
+
+Exception attributes and their meaning/uses
+-------------------------------------------
+
+* critical:    if True, will abort execution prematurely,
+               after attempting any cleaning
+               action.
+
+* failfirst:   breaks any error_check loop that is examining
+               the error queue.
+
+* message:     the message that will be used in the __repr__ of the exception.
+
+* usermessage: the message that will be passed to user in ErrorDialogs
+               in Qt-land.
+
+TODO:
+
+* EIPClientError:
+  Should inherit from LeapException
+
+* gettext / i18n for user messages.
+
+"""
+from leap.base.exceptions import LeapException
+from leap.util.translations import translate
+
+
+# This should inherit from LeapException
+class EIPClientError(Exception):
+    """
+    base EIPClient exception
+    """
+    critical = False
+    failfirst = False
+    warning = False
+
+
+class CriticalError(EIPClientError):
+    """
+    we cannot do anything about it, sorry
+    """
+    critical = True
+    failfirst = True
+
+
+class Warning(EIPClientError):
+    """
+    just that, warnings
+    """
+    warning = True
+
+
+class EIPNoPolkitAuthAgentAvailable(CriticalError):
+    message = "No polkit authentication agent could be found"
+    usermessage = translate(
+        "EIPErrors",
+        "We could not find any authentication "
+        "agent in your system.<br/>"
+        "Make sure you have "
+        "<b>polkit-gnome-authentication-agent-1</b> "
+        "running and try again.")
+
+
+class EIPNoPkexecAvailable(Warning):
+    message = "No pkexec binary found"
+    usermessage = translate(
+        "EIPErrors",
+        "We could not find <b>pkexec</b> in your "
+        "system.<br/> Do you want to try "
+        "<b>setuid workaround</b>? "
+        "(<i>DOES NOTHING YET</i>)")
+    failfirst = True
+
+
+class EIPNoCommandError(EIPClientError):
+    message = "no suitable openvpn command found"
+    usermessage = translate(
+        "EIPErrors",
+        "No suitable openvpn command found. "
+        "<br/>(Might be a permissions problem)")
+
+
+class EIPBadCertError(Warning):
+    # XXX this should be critical and fail close
+    message = "cert verification failed"
+    usermessage = translate(
+        "EIPErrors",
+        "there is a problem with provider certificate")
+
+
+class LeapBadConfigFetchedError(Warning):
+    message = "provider sent a malformed json file"
+    usermessage = translate(
+        "EIPErrors",
+        "an error occurred during configuratio of leap services")
+
+
+class OpenVPNAlreadyRunning(CriticalError):
+    message = "Another OpenVPN Process is already running."
+    usermessage = translate(
+        "EIPErrors",
+        "Another OpenVPN Process has been detected. "
+        "Please close it before starting leap-client")
+
+
+class HttpsNotSupported(LeapException):
+    message = "connection refused while accessing via https"
+    usermessage = translate(
+        "EIPErrors",
+        "Server does not allow secure connections")
+
+
+class HttpsBadCertError(LeapException):
+    message = "verification error on cert"
+    usermessage = translate(
+        "EIPErrors",
+        "Server certificate could not be verified")
+
+#
+# errors still needing some love
+#
+
+
+class EIPInitNoKeyFileError(CriticalError):
+    message = "No vpn keys found in the expected path"
+    usermessage = translate(
+        "EIPErrors",
+        "We could not find your eip certs in the expected path")
+
+
+class EIPInitBadKeyFilePermError(Warning):
+    # I don't know if we should be telling user or not,
+    # we try to fix permissions and should only re-raise
+    # if permission check failed.
+    pass
+
+
+class EIPInitNoProviderError(EIPClientError):
+    pass
+
+
+class EIPInitBadProviderError(EIPClientError):
+    pass
+
+
+class EIPConfigurationError(EIPClientError):
+    pass
+
+#
+# Errors that probably we don't need anymore
+# chase down for them and check.
+#
+
+
+class MissingSocketError(Exception):
+    pass
+
+
+class ConnectionRefusedError(Exception):
+    pass
+
+
+class EIPMissingDefaultProvider(Exception):
+    pass