C++ nsAFlatCString::Assign方法代码示例

//.........这里部分代码省略.........

    // for digest auth, maybe our cached nonce value simply timed out...
    bool identityInvalid;
    nsISupports *sessionState = sessionStateGrip;
    rv = auth->ChallengeReceived(mAuthChannel,
                                 challenge,
                                 proxyAuth,
                                 &sessionState,
                                 &*continuationState,
                                 &identityInvalid);
    sessionStateGrip.swap(sessionState);
    if (NS_FAILED(rv)) return rv;

    LOG(("  identity invalid = %d\n", identityInvalid));

    if (identityInvalid) {
        if (entry) {
            if (ident->Equals(entry->Identity())) {
                LOG(("  clearing bad auth cache entry\n"));
                // ok, we've already tried this user identity, so clear the
                // corresponding entry from the auth cache.
                authCache->ClearAuthEntry(scheme.get(), host,
                                          port, realm.get());
                entry = nullptr;
                ident->Clear();
            }
            else if (!identFromURI ||
                     nsCRT::strcmp(ident->User(),
                                   entry->Identity().User()) == 0) {
                LOG(("  taking identity from auth cache\n"));
                // the password from the auth cache is more likely to be
                // correct than the one in the URL.  at least, we know that it
                // works with the given username.  it is possible for a server
                // to distinguish logons based on the supplied password alone,
                // but that would be quite unusual... and i don't think we need
                // to worry about such unorthodox cases.
                ident->Set(entry->Identity());
                identFromURI = false;
                if (entry->Creds()[0] != '\0') {
                    LOG(("    using cached credentials!\n"));
                    creds.Assign(entry->Creds());
                    return entry->AddPath(path.get());
                }
            }
        }
        else if (!identFromURI) {
            // hmm... identity invalid, but no auth entry!  the realm probably
            // changed (see bug 201986).
            ident->Clear();
        }

        if (!entry && ident->IsEmpty()) {
            uint32_t level = nsIAuthPrompt2::LEVEL_NONE;
            if (mUsingSSL)
                level = nsIAuthPrompt2::LEVEL_SECURE;
            else if (authFlags & nsIHttpAuthenticator::IDENTITY_ENCRYPTED)
                level = nsIAuthPrompt2::LEVEL_PW_ENCRYPTED;

            // at this point we are forced to interact with the user to get
            // their username and password for this domain.
            rv = PromptForIdentity(level, proxyAuth, realm.get(),
                                   authType, authFlags, *ident);
            if (NS_FAILED(rv)) return rv;
            identFromURI = false;
        }
    }

    if (identFromURI) {
        // Warn the user before automatically using the identity from the URL
        // to automatically log them into a site (see bug 232567).
        if (!ConfirmAuth(NS_LITERAL_STRING("AutomaticAuth"), false)) {
            // calling cancel here sets our mStatus and aborts the HTTP
            // transaction, which prevents OnDataAvailable events.
            mAuthChannel->Cancel(NS_ERROR_ABORT);
            // this return code alone is not equivalent to Cancel, since
            // it only instructs our caller that authentication failed.
            // without an explicit call to Cancel, our caller would just
            // load the page that accompanies the HTTP auth challenge.
            return NS_ERROR_ABORT;
        }
    }

    //
    // get credentials for the given user:pass
    //
    // always store the credentials we're trying now so that they will be used
    // on subsequent links.  This will potentially remove good credentials from
    // the cache.  This is ok as we don't want to use cached credentials if the
    // user specified something on the URI or in another manner.  This is so
    // that we don't transparently authenticate as someone they're not
    // expecting to authenticate as.
    //
    nsXPIDLCString result;
    rv = GenCredsAndSetEntry(auth, proxyAuth, scheme.get(), host, port,
                             path.get(), realm.get(), challenge, *ident,
                             sessionStateGrip, getter_Copies(result));
    if (NS_SUCCEEDED(rv))
        creds = result;
    return rv;
}

//----------------------------------------------------------------------------------------
void nsPersistentFileDescriptor::GetData(nsAFlatCString& outData) const
//----------------------------------------------------------------------------------------
{
    outData.Assign(mDescriptorString, mDescriptorString.Length());
}