C++ String_CONST函数代码示例

static void setUser(Dict* args, void* vctx, String* txid, struct Allocator* requestAlloc)
{
    struct Context* const ctx = Identity_check((struct Context*) vctx);
    struct Jmp jmp;
    Jmp_try(jmp) {
        int64_t* user = Dict_getInt(args, String_CONST("uid"));
        int64_t* group = Dict_getInt(args, String_CONST("gid"));
        int gid = group ? (int)*group : 0;
        int64_t* keepNetAdmin = Dict_getInt(args, String_CONST("keepNetAdmin"));
        Security_setUser(*user, gid, *keepNetAdmin, ctx->logger, &jmp.handler, requestAlloc);
    } Jmp_catch {
        sendError(jmp.message, txid, ctx->admin);
        return;
    }
    sendError("none", txid, ctx->admin);
}

static void getUser(Dict* args, void* vctx, String* txid, struct Allocator* requestAlloc)
{
    struct Context* const ctx = Identity_check((struct Context*) vctx);
    String* user = Dict_getString(args, String_CONST("user"));
    Dict* ret = Security_getUser((user) ? user->bytes : NULL, requestAlloc);
    Admin_sendMessage(ret, txid, ctx->admin);
}

static void flush(Dict* args, void* vcontext, String* txid)
{
    struct Context* context = (struct Context*) vcontext;
    // We only remove users which were added using this api.
    CryptoAuth_removeUsers(context->ca, context);
    sendResponse(String_CONST("none"), context->admin, txid);
}

static void ethInterfaceSetBeacon(int ifNum, Dict* eth, struct Context* ctx)
{
    int64_t* beaconP = Dict_getInt(eth, String_CONST("beacon"));
    if (beaconP) {
        int64_t beacon = *beaconP;
        if (beacon > 3 || beacon < 0) {
            Log_error(ctx->logger, "interfaces.ETHInterface.beacon may only be 0, 1,or 2");
        } else {
            // We can cast beacon to an int here because we know it's small enough
            Log_info(ctx->logger, "Setting beacon mode on ETHInterface to [%d].", (int) beacon);
            Dict d = Dict_CONST(String_CONST("interfaceNumber"), Int_OBJ(ifNum),
                     Dict_CONST(String_CONST("state"), Int_OBJ(beacon), NULL));
            rpcCall(String_CONST("ETHInterface_beacon"), &d, ctx, ctx->alloc);
        }
    }
}

/*
 * Send a ping packet to one of the endpoints.
 */
static void sendPing(struct Peer* ep)
{
    struct InterfaceController_pvt* ic = Identity_check(ep->ici->ic);

    ep->pingCount++;

    struct SwitchPinger_Ping* ping =
        SwitchPinger_newPing(ep->addr.path,
                             String_CONST(""),
                             ic->timeoutMilliseconds,
                             onPingResponse,
                             ep->alloc,
                             ic->switchPinger);

    if (Defined(Log_DEBUG)) {
        uint8_t key[56];
        Base32_encode(key, 56, ep->caSession->herPublicKey, 32);
        if (!ping) {
            Log_debug(ic->logger, "Failed to ping [%s.k], out of ping slots", key);
        } else {
            Log_debug(ic->logger, "SwitchPing [%s.k]", key);
        }
    }

    if (ping) {
        ping->onResponseContext = ep;
    }
}

static void authorizedPasswords(List* list, struct Context* ctx)
{
    uint32_t count = List_size(list);
    for (uint32_t i = 0; i < count; i++) {
        Dict* d = List_getDict(list, i);
        Log_info(ctx->logger, "Checking authorized password %d.", i);
        if (!d) {
            Log_critical(ctx->logger, "Not a dictionary type %d.", i);
            exit(-1);
        }
        String* passwd = Dict_getString(d, String_CONST("password"));
        if (!passwd) {
            Log_critical(ctx->logger, "Must specify a password %d.", i);
            exit(-1);
        }
    }

    for (uint32_t i = 0; i < count; i++) {
        struct Allocator* child = Allocator_child(ctx->alloc);
        Dict* d = List_getDict(list, i);
        String* passwd = Dict_getString(d, String_CONST("password"));
        String* user = Dict_getString(d, String_CONST("user"));
        String* displayName = user;
        if (!displayName) {
            displayName = String_printf(child, "password [%d]", i);
        }
        //String* publicKey = Dict_getString(d, String_CONST("publicKey"));
        String* ipv6 = Dict_getString(d, String_CONST("ipv6"));
        Log_info(ctx->logger, "Adding authorized password #[%d] for user [%s].",
            i, displayName->bytes);
        Dict *args = Dict_new(child);
        uint32_t i = 1;
        Dict_putInt(args, String_CONST("authType"), i, child);
        Dict_putString(args, String_CONST("password"), passwd, child);
        if (user) {
            Dict_putString(args, String_CONST("user"), user, child);
        }
        Dict_putString(args, String_CONST("displayName"), displayName, child);
        if (ipv6) {
            Log_info(ctx->logger,
                "  This connection password restricted to [%s] only.", ipv6->bytes);
            Dict_putString(args, String_CONST("ipv6"), ipv6, child);
        }
        rpcCall(String_CONST("AuthorizedPasswords_add"), args, ctx, child);
        Allocator_free(child);
    }
}

/** @return a string representing the address and port to connect to. */
static void initAngel(struct Pipe* asClientPipe,
                      struct Interface* asCoreIface,
                      char* asCorePipeName,
                      struct EventBase* eventBase,
                      struct Log* logger,
                      struct Allocator* alloc,
                      struct Random* rand)
{
    Dict admin = Dict_CONST(
        String_CONST("bind"), String_OBJ(String_CONST("127.0.0.1")), Dict_CONST(
        String_CONST("corePipeName"), String_OBJ(String_CONST(asCorePipeName)), Dict_CONST(
        String_CONST("pass"), String_OBJ(String_CONST("abcd")), NULL
    )));
    Dict message = Dict_CONST(
        String_CONST("admin"), Dict_OBJ(&admin), NULL
    );

    struct Allocator* tempAlloc = Allocator_child(alloc);

    struct Message* toAngel = Message_new(0, 1024, tempAlloc);
    BencMessageWriter_write(&message, toAngel, NULL);

    Log_info(logger, "Writing intial configuration to angel on [%s]", asClientPipe->name);
    Interface_sendMessage(&asClientPipe->iface, toAngel);

    // This is client->angel->core data, we can throw this away.
    //struct Message* angelToCore =
    InterfaceWaiter_waitForData(asCoreIface, eventBase, tempAlloc, NULL);

    // unterminated string
    //Log_info(logger, "Init message from angel to core: [%s]", angelToCore->bytes);

    // Send response on behalf of core.
    Dict* coreToAngelResp = Dict_new(tempAlloc);
    Dict_putString(coreToAngelResp, String_CONST("error"), String_CONST("none"), tempAlloc);
    struct Message* coreToAngelMsg = Message_new(0, 256, tempAlloc);
    BencMessageWriter_write(coreToAngelResp, coreToAngelMsg, NULL);
    Interface_sendMessage(asCoreIface, coreToAngelMsg);

    // This is angel->client data, it will tell us which port was bound.
    struct Message* angelToClient =
        InterfaceWaiter_waitForData(&asClientPipe->iface, eventBase, tempAlloc, NULL);

    uint8_t lastByte = angelToClient->bytes[angelToClient->length-1];
    angelToClient->bytes[angelToClient->length-1] = '\0';
    printf("Response from angel to client: [%s%c]\n", angelToClient->bytes, (char)lastByte);

    Allocator_free(tempAlloc);

    return;
}

static void adminMemory(Dict* input, void* vcontext, String* txid)
{
    struct MemoryContext* context = vcontext;
    Dict d = Dict_CONST(
        String_CONST("bytes"), Int_OBJ(MallocAllocator_bytesAllocated(context->allocator)), NULL
    );
    Admin_sendMessage(&d, txid, context->admin);
}

static void list(Dict* args, void* vcontext, String* txid, struct Allocator* requestAlloc)
{
    struct Context* context = (struct Context*) vcontext;
    struct Allocator* child = Allocator_child(context->allocator);

    List* users = CryptoAuth_getUsers(context->ca, child);
    uint32_t count = List_size(users);

    Dict response = Dict_CONST(
        String_CONST("total"), Int_OBJ(count), Dict_CONST(
        String_CONST("users"), List_OBJ(users), NULL
    ));

    Admin_sendMessage(&response, txid, context->admin);

    Allocator_free(child);
}

static void adminPingOnResponse(struct SwitchPinger_Response* resp, void* vping)
{
    struct Allocator* pingAlloc = resp->ping->pingAlloc;
    struct Ping* ping = vping;

    Dict* rd = Dict_new(pingAlloc);

    if (resp->res == SwitchPinger_Result_LABEL_MISMATCH) {
        uint8_t path[20] = {0};
        AddrTools_printPath(path, resp->label);
        String* pathStr = String_new(path, pingAlloc);
        Dict_putString(rd, String_CONST("rpath"), pathStr, pingAlloc);
    }

    Dict_putInt(rd, String_CONST("version"), resp->version, pingAlloc);
    Dict_putInt(rd, String_CONST("ms"), resp->milliseconds, pingAlloc);
    Dict_putString(rd, String_CONST("result"), SwitchPinger_resultString(resp->res), pingAlloc);
    Dict_putString(rd, String_CONST("path"), ping->path, pingAlloc);
    if (resp->data) {
        Dict_putString(rd, String_CONST("data"), resp->data, pingAlloc);
    }

    if (!Bits_isZero(resp->key, 32)) {
        Dict_putString(rd, String_CONST("key"), Key_stringify(resp->key, pingAlloc), pingAlloc);
    }

    Admin_sendMessage(rd, ping->txid, ping->context->admin);
}

static void sendFirstMessageToCore(void* vcontext)
{
    struct NodeContext* ctx = Identity_check((struct NodeContext*) vcontext);
    struct Allocator* alloc = Allocator_child(ctx->alloc);
    struct Message* msg = Message_new(0, 512, alloc);

    Dict* d = Dict_new(alloc);
    Dict_putString(d, String_CONST("privateKey"), String_new(ctx->privateKeyHex, alloc), alloc);

    Dict* logging = Dict_new(alloc);
    {
        Dict_putString(logging, String_CONST("logTo"), String_CONST("stdout"), alloc);
    }
    Dict_putDict(d, String_CONST("logging"), logging, alloc);

    Dict* admin = Dict_new(alloc);
    {
        Dict_putString(admin, String_CONST("bind"), ctx->bind, alloc);
        Dict_putString(admin, String_CONST("pass"), ctx->pass, alloc);
    }
    Dict_putDict(d, String_CONST("admin"), admin, alloc);

    BencMessageWriter_write(d, msg, NULL);

    Iface_send(&ctx->angelIface, msg);
    Allocator_free(alloc);
}

static void sendResponse(String* msg, struct Admin* admin, String* txid)
{
    #define BUFFERSZ 1024
    uint8_t buffer[BUFFERSZ];
    struct Allocator* alloc = BufferAllocator_new(buffer, BUFFERSZ);
    Dict* output = Dict_new(alloc);
    Dict_putString(output, String_CONST("error"), msg, alloc);
    Admin_sendMessage(output, txid, admin);
}

static void sendResponse(String* error,
                         struct Admin* admin,
                         String* txid,
                         struct Allocator* tempAlloc)
{
    Dict* output = Dict_new(tempAlloc);
    Dict_putString(output, String_CONST("error"), error, tempAlloc);
    Admin_sendMessage(output, txid, admin);
}

static int rpcCall0(String* function,
                    Dict* args,
                    struct Context* ctx,
                    struct Allocator* alloc,
                    bool exitIfError)
{
    ctx->currentReqAlloc = Allocator_child(alloc);
    ctx->currentResult = NULL;
    struct AdminClient_Promise* promise = AdminClient_rpcCall(function, args, ctx->client, alloc);
    promise->callback = rpcCallback;
    promise->userData = ctx;

    EventBase_beginLoop(ctx->base);

    struct AdminClient_Result* res = ctx->currentResult;
    Assert_always(res);

    if (res->err) {
        Log_critical(ctx->logger,
                      "Failed to make function call [%s], error: [%s]",
                      AdminClient_errorString(res->err),
                      function->bytes);
        die(res, ctx, alloc);
    }
    String* error = Dict_getString(res->responseDict, String_CONST("error"));
    int ret = 0;
    if (error && !String_equals(error, String_CONST("none"))) {
        if (exitIfError) {
            Log_critical(ctx->logger,
                         "Got error [%s] calling [%s]",
                         error->bytes,
                         function->bytes);
            die(res, ctx, alloc);
        }
        Log_warn(ctx->logger, "Got error [%s] calling [%s], ignoring.",
                 error->bytes, function->bytes);
        ret = 1;
    }

    Allocator_free(ctx->currentReqAlloc);
    ctx->currentReqAlloc = NULL;
    return ret;
}

static void minSinatures(Dict* args, void* vcontext, String* txid, struct Allocator* requestAlloc)
{
    struct Context* context = vcontext;
    struct Allocator* alloc = Allocator_child(context->alloc);
    int64_t* count = Dict_getInt(args, String_CONST("count"));
    char* err = "none";
    if (*count < 0 || *count > INT32_MAX) {
        err = "count cannot be less than zero or more than INT32_MAX";
    } else {
        context->rainfly->minSignatures = *count;
    }

    Dict* response = Dict_new(alloc);
    Dict_putString(response, String_CONST("error"), String_CONST(err), alloc);

    Admin_sendMessage(response, txid, context->admin);

    Allocator_free(alloc);
}