1 files changed, 347 insertions, 0 deletions
diff --git a/src/test/rgw/amqp_mock.cc b/src/test/rgw/amqp_mock.cc
new file mode 100644
index 00000000..e37151e4
--- /dev/null
+++ b/src/test/rgw/amqp_mock.cc
@@ -0,0 +1,347 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include "amqp_mock.h"
+#include <amqp.h>
+#include <amqp_tcp_socket.h>
+#include <string>
+#include <stdarg.h>
+#include <mutex>
+#include <boost/lockfree/queue.hpp>
+
+namespace amqp_mock {
+
+std::mutex set_valid_lock;
+int VALID_PORT(5672);
+std::string VALID_HOST("localhost");
+std::string VALID_VHOST("/");
+std::string VALID_USER("guest");
+std::string VALID_PASSWORD("guest");
+
+void set_valid_port(int port) {
+  std::lock_guard<std::mutex> lock(set_valid_lock);
+  VALID_PORT = port;
+}
+
+void set_valid_host(const std::string& host) {
+  std::lock_guard<std::mutex> lock(set_valid_lock);
+  VALID_HOST = host;
+}
+
+void set_valid_vhost(const std::string& vhost) {
+  std::lock_guard<std::mutex> lock(set_valid_lock);
+  VALID_VHOST = vhost;
+}
+
+void set_valid_user(const std::string& user, const std::string& password) {
+  std::lock_guard<std::mutex> lock(set_valid_lock);
+  VALID_USER = user;
+  VALID_PASSWORD = password;
+}
+
+std::atomic<unsigned> g_tag_skip = 0;
+std::atomic<int> g_multiple = 0;
+
+void set_multiple(unsigned tag_skip) {
+    g_multiple = 1;
+    g_tag_skip = tag_skip;
+}
+
+void reset_multiple() {
+    g_multiple = 0;
+    g_tag_skip = 0;
+}
+
+bool FAIL_NEXT_WRITE(false);
+bool FAIL_NEXT_READ(false);
+bool REPLY_ACK(true);
+}
+
+using namespace amqp_mock;
+
+struct amqp_connection_state_t_ {
+  amqp_socket_t* socket;
+  amqp_channel_open_ok_t* channel1;
+  amqp_channel_open_ok_t* channel2;
+  amqp_exchange_declare_ok_t* exchange;
+  amqp_queue_declare_ok_t* queue;
+  amqp_confirm_select_ok_t* confirm;
+  amqp_basic_consume_ok_t* consume;
+  bool login_called;
+  boost::lockfree::queue<amqp_basic_ack_t> ack_list;
+  boost::lockfree::queue<amqp_basic_nack_t> nack_list;
+  std::atomic<uint64_t> delivery_tag;
+  amqp_rpc_reply_t reply;
+  amqp_basic_ack_t ack;
+  amqp_basic_nack_t nack;
+  // ctor
+  amqp_connection_state_t_() : 
+    socket(nullptr), 
+    channel1(nullptr),
+    channel2(nullptr),
+    exchange(nullptr),
+    queue(nullptr),
+    confirm(nullptr),
+    consume(nullptr),
+    login_called(false),
+    ack_list(1024),
+    nack_list(1024),
+    delivery_tag(1) {
+      reply.reply_type = AMQP_RESPONSE_NONE;
+    }
+};
+
+struct amqp_socket_t_ {
+  bool open_called;
+  // ctor
+  amqp_socket_t_() : open_called(false) {
+  }
+};
+
+amqp_connection_state_t AMQP_CALL amqp_new_connection(void) {
+  auto s = new amqp_connection_state_t_;
+  return s;
+}
+
+int amqp_destroy_connection(amqp_connection_state_t state) {
+  delete state->socket;
+  delete state->channel1;
+  delete state->channel2;
+  delete state->exchange;
+  delete state->queue;
+  delete state->confirm;
+  delete state->consume;
+  delete state;
+  return 0;
+}
+
+amqp_socket_t* amqp_tcp_socket_new(amqp_connection_state_t state) {
+  state->socket = new amqp_socket_t;
+  return state->socket;
+}
+
+int amqp_socket_open(amqp_socket_t *self, const char *host, int port) {
+  if (!self) {
+    return -1;
+  }
+  {
+    std::lock_guard<std::mutex> lock(set_valid_lock);
+    if (std::string(host) != VALID_HOST) {
+      return -2;
+    } 
+    if (port != VALID_PORT) {
+      return -3;
+    }
+  }
+  self->open_called = true;
+  return 0;
+}
+
+amqp_rpc_reply_t amqp_login(
+    amqp_connection_state_t state, 
+    char const *vhost, 
+    int channel_max,
+    int frame_max, 
+    int heartbeat, 
+    amqp_sasl_method_enum sasl_method, ...) {
+  state->reply.reply_type = AMQP_RESPONSE_SERVER_EXCEPTION;
+  state->reply.library_error = 0;
+  state->reply.reply.decoded = nullptr;
+  state->reply.reply.id = 0;
+  if (std::string(vhost) != VALID_VHOST) {
+    return state->reply;
+  }
+  if (sasl_method != AMQP_SASL_METHOD_PLAIN) {
+      return state->reply;
+  }
+  va_list args;
+  va_start(args, sasl_method);
+  char* user = va_arg(args, char*);
+  char* password = va_arg(args, char*);
+  va_end(args);
+  if (std::string(user) != VALID_USER) {
+    return state->reply;
+  }
+  if (std::string(password) != VALID_PASSWORD) {
+    return state->reply;
+  }
+  state->reply.reply_type = AMQP_RESPONSE_NORMAL;
+  state->login_called = true;
+  return state->reply;
+}
+
+amqp_channel_open_ok_t* amqp_channel_open(amqp_connection_state_t state, amqp_channel_t channel) {
+  state->reply.reply_type = AMQP_RESPONSE_NORMAL;
+  if (state->channel1 == nullptr) {
+    state->channel1 = new amqp_channel_open_ok_t;
+    return state->channel1;
+  }
+
+  state->channel2 = new amqp_channel_open_ok_t;
+  return state->channel2;
+}
+
+amqp_exchange_declare_ok_t* amqp_exchange_declare(
+    amqp_connection_state_t state, 
+    amqp_channel_t channel,
+    amqp_bytes_t exchange, 
+    amqp_bytes_t type, 
+    amqp_boolean_t passive,
+    amqp_boolean_t durable, 
+    amqp_boolean_t auto_delete, 
+    amqp_boolean_t internal,
+    amqp_table_t arguments) {
+  state->exchange = new amqp_exchange_declare_ok_t;
+  state->reply.reply_type = AMQP_RESPONSE_NORMAL;
+  return state->exchange;
+}
+
+amqp_rpc_reply_t amqp_get_rpc_reply(amqp_connection_state_t state) {
+  return state->reply;
+}
+
+int amqp_basic_publish(
+    amqp_connection_state_t state, 
+    amqp_channel_t channel,
+    amqp_bytes_t exchange, 
+    amqp_bytes_t routing_key, 
+    amqp_boolean_t mandatory,
+    amqp_boolean_t immediate, 
+    struct amqp_basic_properties_t_ const *properties,
+    amqp_bytes_t body) {
+  // make sure that all calls happened before publish
+  if (state->socket && state->socket->open_called &&
+      state->login_called && state->channel1 && state->channel2 && state->exchange &&
+      !FAIL_NEXT_WRITE) {
+    state->reply.reply_type = AMQP_RESPONSE_NORMAL;
+    if (properties) {
+      if (REPLY_ACK) {
+        state->ack_list.push(amqp_basic_ack_t{state->delivery_tag++, 0});
+      } else {
+        state->nack_list.push(amqp_basic_nack_t{state->delivery_tag++, 0});
+      }
+    }
+    return AMQP_STATUS_OK;
+  }
+  return AMQP_STATUS_CONNECTION_CLOSED;
+}
+
+const amqp_table_t amqp_empty_table = {0, NULL};
+const amqp_bytes_t amqp_empty_bytes = {0, NULL};
+
+const char* amqp_error_string2(int code) {
+  static const char* str = "mock error";
+  return str;
+}
+
+char const* amqp_method_name(amqp_method_number_t methodNumber) {
+  static const char* str = "mock method";
+  return str;
+}
+
+amqp_queue_declare_ok_t* amqp_queue_declare(
+    amqp_connection_state_t state, amqp_channel_t channel, amqp_bytes_t queue,
+    amqp_boolean_t passive, amqp_boolean_t durable, amqp_boolean_t exclusive,
+    amqp_boolean_t auto_delete, amqp_table_t arguments) {
+  state->queue = new amqp_queue_declare_ok_t;
+  static const char* str = "tmp-queue";
+  state->queue->queue = amqp_cstring_bytes(str);
+  state->reply.reply_type = AMQP_RESPONSE_NORMAL;
+  return state->queue;
+}
+
+amqp_confirm_select_ok_t* amqp_confirm_select(amqp_connection_state_t state, amqp_channel_t channel) {
+  state->confirm = new amqp_confirm_select_ok_t;
+  state->reply.reply_type = AMQP_RESPONSE_NORMAL;
+  return state->confirm;
+}
+
+int amqp_simple_wait_frame_noblock(amqp_connection_state_t state, amqp_frame_t *decoded_frame, struct timeval* tv) {
+  if (state->socket && state->socket->open_called &&
+      state->login_called && state->channel1 && state->channel2 && state->exchange &&
+      state->queue && state->consume && state->confirm && !FAIL_NEXT_READ) {
+    // "wait" for queue
+    usleep(tv->tv_sec*1000000+tv->tv_usec);
+    // read from queue
+    if (g_multiple) {
+      // pop multiples and reply once at the end
+      for (auto i = 0U; i < g_tag_skip; ++i) {
+        if (REPLY_ACK && !state->ack_list.pop(state->ack)) {
+          // queue is empty
+          return AMQP_STATUS_TIMEOUT;
+        } else if (!REPLY_ACK && !state->nack_list.pop(state->nack)) {
+          // queue is empty
+          return AMQP_STATUS_TIMEOUT;
+        }
+      }
+      if (REPLY_ACK) {
+        state->ack.multiple = g_multiple;
+        decoded_frame->payload.method.id = AMQP_BASIC_ACK_METHOD;
+        decoded_frame->payload.method.decoded = &state->ack;
+      } else {
+        state->nack.multiple = g_multiple;
+        decoded_frame->payload.method.id = AMQP_BASIC_NACK_METHOD;
+        decoded_frame->payload.method.decoded = &state->nack;
+      }
+      decoded_frame->frame_type = AMQP_FRAME_METHOD;
+      state->reply.reply_type = AMQP_RESPONSE_NORMAL;
+      reset_multiple();
+      return AMQP_STATUS_OK;
+    }
+    // pop replies one by one
+    if (REPLY_ACK && state->ack_list.pop(state->ack)) {
+      state->ack.multiple = g_multiple;
+      decoded_frame->frame_type = AMQP_FRAME_METHOD;
+      decoded_frame->payload.method.id = AMQP_BASIC_ACK_METHOD;
+      decoded_frame->payload.method.decoded = &state->ack;
+      state->reply.reply_type = AMQP_RESPONSE_NORMAL;
+      return AMQP_STATUS_OK;
+    } else if (!REPLY_ACK && state->nack_list.pop(state->nack)) {
+      state->nack.multiple = g_multiple;
+      decoded_frame->frame_type = AMQP_FRAME_METHOD;
+      decoded_frame->payload.method.id = AMQP_BASIC_NACK_METHOD;
+      decoded_frame->payload.method.decoded = &state->nack;
+      state->reply.reply_type = AMQP_RESPONSE_NORMAL;
+      return AMQP_STATUS_OK;
+    } else {
+      // queue is empty
+      return AMQP_STATUS_TIMEOUT;
+    }
+  }
+  return AMQP_STATUS_CONNECTION_CLOSED;
+}
+
+amqp_basic_consume_ok_t* amqp_basic_consume(
+    amqp_connection_state_t state, amqp_channel_t channel, amqp_bytes_t queue,
+    amqp_bytes_t consumer_tag, amqp_boolean_t no_local, amqp_boolean_t no_ack,
+    amqp_boolean_t exclusive, amqp_table_t arguments) {
+  state->consume = new amqp_basic_consume_ok_t;
+  state->reply.reply_type = AMQP_RESPONSE_NORMAL;
+  return state->consume;
+}
+
+// amqp_parse_url() is linked via the actual rabbitmq-c library code. see: amqp_url.c
+
+// following functions are the actual implementation copied from rabbitmq-c library
+
+#include <string.h>
+
+amqp_bytes_t amqp_cstring_bytes(const char* cstr) {
+  amqp_bytes_t result;
+  result.len = strlen(cstr);
+  result.bytes = (void *)cstr;
+  return result;
+}
+
+void amqp_bytes_free(amqp_bytes_t bytes) { free(bytes.bytes); }
+
+amqp_bytes_t amqp_bytes_malloc_dup(amqp_bytes_t src) {
+  amqp_bytes_t result;
+  result.len = src.len;
+  result.bytes = malloc(src.len);
+  if (result.bytes != NULL) {
+    memcpy(result.bytes, src.bytes, src.len);
+  }
+  return result;
+}
+