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src/subversion/subversion/bindings/javahl/native/ClientContext.cpp  view on Meta::CPAN

    jobject jctx = env->GetObjectField(jsvnclient, ctxFieldID);
    if (JNIUtil::isJavaExceptionThrown())
        return;

    m_jctx = env->NewGlobalRef(jctx);
    if (JNIUtil::isJavaExceptionThrown())
        return;

    env->DeleteLocalRef(jctx);

    SVN_JNI_ERR(svn_client_create_context2(&m_context, NULL,
                                           pool.getPool()),
                );

    /* Clear the wc_ctx as we don't want to maintain this unconditionally
       for compatibility reasons */
    SVN_JNI_ERR(svn_wc_context_destroy(m_context->wc_ctx),
                );
    m_context->wc_ctx = NULL;

    /* None of the following members change during the lifetime of
       this object. */
    m_context->notify_func = NULL;
    m_context->notify_baton = NULL;
    m_context->log_msg_func3 = CommitMessage::callback;
    m_context->log_msg_baton3 = NULL;
    m_context->cancel_func = checkCancel;
    m_context->cancel_baton = this;
    m_context->notify_func2= notify;
    m_context->notify_baton2 = m_jctx;
    m_context->progress_func = progress;
    m_context->progress_baton = m_jctx;
    m_context->conflict_func2 = resolve;
    m_context->conflict_baton2 = m_jctx;

    m_context->client_name = "javahl";
    m_pool = &pool;
}

ClientContext::~ClientContext()
{
    delete m_prompter;

    JNIEnv *env = JNIUtil::getEnv();
    env->DeleteGlobalRef(m_jctx);
}


/* Helper function to make sure that we don't keep dangling pointers in ctx.
   Note that this function might be called multiple times if getContext()
   is called on the same pool.

   The use of this function assumes a proper subpool behavior by its user,
   (read: SVNClient) usually per request.
 */
extern "C" {

struct clearctx_baton_t
{
  svn_client_ctx_t *ctx;
  svn_client_ctx_t *backup;
};

static apr_status_t clear_ctx_ptrs(void *ptr)
{
    clearctx_baton_t *bt = reinterpret_cast<clearctx_baton_t*>(ptr);

    /* Reset all values to those before overwriting by getContext. */
    *bt->ctx = *bt->backup;

    return APR_SUCCESS;
}

};

svn_client_ctx_t *
ClientContext::getContext(CommitMessage *message, SVN::Pool &in_pool)
{
    apr_pool_t *pool = in_pool.getPool();
    svn_auth_baton_t *ab;
    svn_client_ctx_t *ctx = m_context;

    /* Make a temporary copy of ctx to restore at pool cleanup to avoid
       leaving references to dangling pointers.

       Note that this allows creating a stack of context changes if
       the function is invoked multiple times with different pools.
     */
    clearctx_baton_t *bt =
      reinterpret_cast<clearctx_baton_t *>(apr_pcalloc(pool, sizeof(*bt)));
    bt->ctx = ctx;
    bt->backup =
      reinterpret_cast<svn_client_ctx_t*>(apr_pmemdup(pool, ctx, sizeof(*ctx)));
    apr_pool_cleanup_register(in_pool.getPool(), bt, clear_ctx_ptrs,
                              clear_ctx_ptrs);


    if (!ctx->config)
      {
        const char *configDir = m_configDir.c_str();
        if (m_configDir.empty())
            configDir = NULL;
        SVN_JNI_ERR(svn_config_get_config(&(ctx->config), configDir,
                                          m_pool->getPool()),
                    NULL);

        bt->backup->config = ctx->config;
      }
    svn_config_t *config =
        reinterpret_cast<svn_config_t *>(apr_hash_get(ctx->config,
                                                      SVN_CONFIG_CATEGORY_CONFIG,
                                                      APR_HASH_KEY_STRING));


    /* The whole list of registered providers */
    apr_array_header_t *providers;

    /* Populate the registered providers with the platform-specific providers */
    SVN_JNI_ERR(svn_auth_get_platform_specific_client_providers(&providers,
                                                                config,
                                                                pool),
                NULL);

    /* Use the prompter (if available) to prompt for password and cert
     * caching. */
    svn_auth_plaintext_prompt_func_t plaintext_prompt_func = NULL;
    void *plaintext_prompt_baton = NULL;
    svn_auth_plaintext_passphrase_prompt_func_t plaintext_passphrase_prompt_func;
    void *plaintext_passphrase_prompt_baton = NULL;

    if (m_prompter != NULL)
    {
        plaintext_prompt_func = Prompter::plaintext_prompt;
        plaintext_prompt_baton = m_prompter;
        plaintext_passphrase_prompt_func = Prompter::plaintext_passphrase_prompt;
        plaintext_passphrase_prompt_baton = m_prompter;
    }

    /* The main disk-caching auth providers, for both
     * 'username/password' creds and 'username' creds.  */
    svn_auth_provider_object_t *provider;

    svn_auth_get_simple_provider2(&provider, plaintext_prompt_func,
                                  plaintext_prompt_baton, pool);
    APR_ARRAY_PUSH(providers, svn_auth_provider_object_t *) = provider;

    svn_auth_get_username_provider(&provider, pool);
    APR_ARRAY_PUSH(providers, svn_auth_provider_object_t *) = provider;

    /* The server-cert, client-cert, and client-cert-password providers. */
    SVN_JNI_ERR(svn_auth_get_platform_specific_provider(&provider,
                                                        "windows",
                                                        "ssl_server_trust",
                                                        pool),
                NULL);

    if (provider)
        APR_ARRAY_PUSH(providers, svn_auth_provider_object_t *) = provider;

    svn_auth_get_ssl_server_trust_file_provider(&provider, pool);
    APR_ARRAY_PUSH(providers, svn_auth_provider_object_t *) = provider;
    svn_auth_get_ssl_client_cert_file_provider(&provider, pool);
    APR_ARRAY_PUSH(providers, svn_auth_provider_object_t *) = provider;
    svn_auth_get_ssl_client_cert_pw_file_provider2(&provider,
                        plaintext_passphrase_prompt_func,
                        plaintext_passphrase_prompt_baton, pool);
    APR_ARRAY_PUSH(providers, svn_auth_provider_object_t *) = provider;