diff options
Diffstat (limited to 'src/leap/gui/firstrun/providerselect.py')
| -rw-r--r-- | src/leap/gui/firstrun/providerselect.py | 471 |
1 files changed, 471 insertions, 0 deletions
diff --git a/src/leap/gui/firstrun/providerselect.py b/src/leap/gui/firstrun/providerselect.py new file mode 100644 index 00000000..917b16fd --- /dev/null +++ b/src/leap/gui/firstrun/providerselect.py @@ -0,0 +1,471 @@ +""" +Select Provider Page, used in First Run Wizard +""" +import logging + +import requests + +from PyQt4 import QtCore +from PyQt4 import QtGui + +from leap.base import exceptions as baseexceptions +#from leap.crypto import certs +from leap.eip import exceptions as eipexceptions +from leap.gui.progress import InlineValidationPage +from leap.gui import styles +from leap.gui.utils import delay +from leap.util.web import get_https_domain_and_port + +from leap.gui.constants import APP_LOGO + +logger = logging.getLogger(__name__) + + +class SelectProviderPage(InlineValidationPage): + + launchChecks = QtCore.pyqtSignal() + + def __init__(self, parent=None, providers=None): + super(SelectProviderPage, self).__init__(parent) + self.current_page = 'providerselection' + + self.setTitle(self.tr("Enter Provider")) + self.setSubTitle(self.tr( + "Please enter the domain of the provider you want " + "to use for your connection") + ) + self.setPixmap( + QtGui.QWizard.LogoPixmap, + QtGui.QPixmap(APP_LOGO)) + + self.did_cert_check = False + + self.done = False + + self.setupSteps() + self.setupUI() + + self.launchChecks.connect( + self.launch_checks) + + self.providerNameEdit.editingFinished.connect( + lambda: self.providerCheckButton.setFocus(True)) + + def setupUI(self): + """ + initializes the UI + """ + providerNameLabel = QtGui.QLabel("h&ttps://") + # note that we expect the bare domain name + # we will add the scheme later + providerNameEdit = QtGui.QLineEdit() + providerNameEdit.cursorPositionChanged.connect( + self.reset_validation_status) + providerNameLabel.setBuddy(providerNameEdit) + + # add regex validator + providerDomainRe = QtCore.QRegExp(r"^[a-z1-9_\-\.]+$") + providerNameEdit.setValidator( + QtGui.QRegExpValidator(providerDomainRe, self)) + self.providerNameEdit = providerNameEdit + + # Eventually we will seed a list of + # well known providers here. + + #providercombo = QtGui.QComboBox() + #if providers: + #for provider in providers: + #providercombo.addItem(provider) + #providerNameSelect = providercombo + + self.registerField("provider_domain*", self.providerNameEdit) + #self.registerField('provider_name_index', providerNameSelect) + + validationMsg = QtGui.QLabel("") + validationMsg.setStyleSheet(styles.ErrorLabelStyleSheet) + self.validationMsg = validationMsg + providerCheckButton = QtGui.QPushButton(self.tr("chec&k!")) + self.providerCheckButton = providerCheckButton + + # cert info + + # this is used in the callback + # for the checkbox changes. + # tricky, since the first time came + # from the exception message. + # should get string from exception too! + self.bad_cert_status = self.tr( + "Server certificate could not be verified.") + + self.certInfo = QtGui.QLabel("") + self.certInfo.setWordWrap(True) + self.certWarning = QtGui.QLabel("") + self.trustProviderCertCheckBox = QtGui.QCheckBox( + self.tr("&Trust this provider certificate.")) + + self.trustProviderCertCheckBox.stateChanged.connect( + self.onTrustCheckChanged) + self.providerNameEdit.textChanged.connect( + self.onProviderChanged) + self.providerCheckButton.clicked.connect( + self.onCheckButtonClicked) + + layout = QtGui.QGridLayout() + layout.addWidget(validationMsg, 0, 2) + layout.addWidget(providerNameLabel, 1, 1) + layout.addWidget(providerNameEdit, 1, 2) + layout.addWidget(providerCheckButton, 1, 3) + + # add certinfo group + # XXX not shown now. should move to validation box. + #layout.addWidget(certinfoGroup, 4, 1, 4, 2) + #self.certinfoGroup = certinfoGroup + #self.certinfoGroup.hide() + + # add validation frame + self.setupValidationFrame() + layout.addWidget(self.valFrame, 4, 2, 4, 2) + self.valFrame.hide() + + self.setLayout(layout) + + # certinfo + + def setupCertInfoGroup(self): # pragma: no cover + # XXX not used now. + certinfoGroup = QtGui.QGroupBox( + self.tr("Certificate validation")) + certinfoLayout = QtGui.QVBoxLayout() + certinfoLayout.addWidget(self.certInfo) + certinfoLayout.addWidget(self.certWarning) + certinfoLayout.addWidget(self.trustProviderCertCheckBox) + certinfoGroup.setLayout(certinfoLayout) + self.certinfoGroup = self.certinfoGroup + + # progress frame + + def setupValidationFrame(self): + qframe = QtGui.QFrame + valFrame = qframe() + valFrame.setFrameStyle(qframe.NoFrame) + valframeLayout = QtGui.QVBoxLayout() + zeros = (0, 0, 0, 0) + valframeLayout.setContentsMargins(*zeros) + + valframeLayout.addWidget(self.stepsTableWidget) + valFrame.setLayout(valframeLayout) + self.valFrame = valFrame + + @QtCore.pyqtSlot() + def onDisableCheckButton(self): + #print 'CHECK BUTTON DISABLED!!!' + self.providerCheckButton.setDisabled(True) + + @QtCore.pyqtSlot() + def launch_checks(self): + self.do_checks() + + def onCheckButtonClicked(self): + QtCore.QMetaObject.invokeMethod( + self, "onDisableCheckButton") + + QtCore.QMetaObject.invokeMethod( + self, "showStepsFrame") + + delay(self, "launch_checks") + + def _do_checks(self): + """ + generator that yields actual checks + that are executed in a separate thread + """ + + wizard = self.wizard() + full_domain = self.providerNameEdit.text() + + # we check if we have a port in the domain string. + domain, port = get_https_domain_and_port(full_domain) + _domain = u"%s:%s" % (domain, port) if port != 443 else unicode(domain) + + netchecker = wizard.netchecker() + providercertchecker = wizard.providercertchecker() + eipconfigchecker = wizard.eipconfigchecker(domain=_domain) + + yield(("head_sentinel", 0), lambda: None) + + ######################## + # 1) try name resolution + ######################## + + def namecheck(): + """ + in which we check if + we are able to name resolve + this domain + """ + try: + #import ipdb;ipdb.set_trace() + netchecker.check_name_resolution( + domain) + + except baseexceptions.LeapException as exc: + logger.error(exc.message) + return self.fail(exc.usermessage) + + except Exception as exc: + return self.fail(exc.message) + + else: + return True + + logger.debug('checking name resolution') + yield((self.tr("Checking if it is a valid provider"), 20), namecheck) + + ######################### + # 2) try https connection + ######################### + + def httpscheck(): + """ + in which we check + if the provider + is offering service over + https + """ + try: + providercertchecker.is_https_working( + "https://%s" % _domain, + verify=True) + + except eipexceptions.HttpsBadCertError as exc: + logger.debug('exception') + return self.fail(exc.usermessage) + # XXX skipping for now... + ############################################## + # We had this validation logic + # in the provider selection page before + ############################################## + #if self.trustProviderCertCheckBox.isChecked(): + #pass + #else: + #fingerprint = certs.get_cert_fingerprint( + #domain=domain, sep=" ") + + # it's ok if we've trusted this fgprt before + #trustedcrts = wizard.trusted_certs + #if trustedcrts and \ + # fingerprint.replace(' ', '') in trustedcrts: + #pass + #else: + # let your user face panick :P + #self.add_cert_info(fingerprint) + #self.did_cert_check = True + #self.completeChanged.emit() + #return False + + except baseexceptions.LeapException as exc: + return self.fail(exc.usermessage) + + except Exception as exc: + return self.fail(exc.message) + + else: + return True + + logger.debug('checking https connection') + yield((self.tr("Checking for a secure connection"), 40), httpscheck) + + ################################## + # 3) try download provider info... + ################################## + + def fetchinfo(): + try: + # XXX we already set _domain in the initialization + # so it should not be needed here. + eipconfigchecker.fetch_definition(domain=_domain) + wizard.set_providerconfig( + eipconfigchecker.defaultprovider.config) + except requests.exceptions.SSLError: + return self.fail(self.tr( + "Could not get info from provider.")) + except requests.exceptions.ConnectionError: + return self.fail(self.tr( + "Could not download provider info " + "(refused conn.).")) + + except Exception as exc: + return self.fail( + self.tr(exc.message)) + else: + return True + + yield((self.tr("Getting info from the provider"), 80), fetchinfo) + + # done! + + self.done = True + yield(("end_sentinel", 100), lambda: None) + + def on_checks_validation_ready(self): + """ + called after _do_checks has finished. + """ + self.domain_checked = True + self.completeChanged.emit() + # let's set focus... + if self.is_done(): + self.wizard().clean_validation_error(self.current_page) + nextbutton = self.wizard().button(QtGui.QWizard.NextButton) + nextbutton.setFocus() + else: + self.providerNameEdit.setFocus() + + # cert trust verification + # (disabled for now) + + def is_insecure_cert_trusted(self): + return self.trustProviderCertCheckBox.isChecked() + + def onTrustCheckChanged(self, state): # pragma: no cover XXX + checked = False + if state == 2: + checked = True + + if checked: + self.reset_validation_status() + else: + self.set_validation_status(self.bad_cert_status) + + # trigger signal to redraw next button + self.completeChanged.emit() + + def add_cert_info(self, certinfo): # pragma: no cover XXX + self.certWarning.setText( + self.tr("Do you want to <b>trust this provider certificate?</b>")) + # XXX Check if this needs to abstracted to remove certinfo + self.certInfo.setText( + self.tr('SHA-256 fingerprint: <i>%s</i><br>' % certinfo)) + self.certInfo.setWordWrap(True) + self.certinfoGroup.show() + + def onProviderChanged(self, text): + self.done = False + provider = self.providerNameEdit.text() + if provider: + self.providerCheckButton.setDisabled(False) + else: + self.providerCheckButton.setDisabled(True) + self.completeChanged.emit() + + def reset_validation_status(self): + """ + empty the validation msg + and clean the inline validation widget. + """ + self.validationMsg.setText('') + self.steps.removeAllSteps() + self.clearTable() + self.domain_checked = False + + # pagewizard methods + + def isComplete(self): + provider = self.providerNameEdit.text() + + if not self.is_done(): + return False + + if not provider: + return False + else: + if self.is_insecure_cert_trusted(): + return True + if not self.did_cert_check: + if self.is_done(): + # XXX sure? + return True + return False + + def populateErrors(self): + # XXX could move this to ValidationMixin + # with some defaults for the validating fields + # (now it only allows one field, manually specified) + + #logger.debug('getting errors') + errors = self.wizard().get_validation_error( + self.current_page) + if errors: + bad_str = getattr(self, 'bad_string', None) + cur_str = self.providerNameEdit.text() + showerr = self.validationMsg.setText + markred = lambda: self.providerNameEdit.setStyleSheet( + styles.ErrorLineEdit) + umarkrd = lambda: self.providerNameEdit.setStyleSheet( + styles.RegularLineEdit) + if bad_str is None: + # first time we fall here. + # save the current bad_string value + self.bad_string = cur_str + showerr(errors) + markred() + else: + # not the first time + # XXX hey, this is getting convoluted. + # roll out this. + # but be careful about all the possibilities + # with going back and forth once you + # enter a domain. + if cur_str == bad_str: + showerr(errors) + markred() + else: + if not getattr(self, 'domain_checked', None): + showerr('') + umarkrd() + else: + self.bad_string = cur_str + showerr(errors) + + def cleanup_errormsg(self): + """ + we reset bad_string to None + should be called before leaving the page + """ + self.bad_string = None + self.domain_checked = False + + def paintEvent(self, event): + """ + we hook our populate errors + on paintEvent because we need it to catch + when user enters the page coming from next, + and initializePage does not cover that case. + Maybe there's a better event to hook upon. + """ + super(SelectProviderPage, self).paintEvent(event) + self.populateErrors() + + def initializePage(self): + self.validationMsg.setText('') + if hasattr(self, 'certinfoGroup'): + # XXX remove ? + self.certinfoGroup.hide() + self.done = False + self.providerCheckButton.setDisabled(True) + self.valFrame.hide() + self.steps.removeAllSteps() + self.clearTable() + + def validatePage(self): + # some cleanup before we leave the page + self.cleanup_errormsg() + + # go + return True + + def nextId(self): + wizard = self.wizard() + if not wizard: + return + return wizard.get_page_index('providerinfo') |