finish p2p & TLS integration and testing

1 files changed, 317 insertions, 0 deletions

diff --git a/test/test_p2p_tls.cpp b/test/test_p2p_tls.cpp
new file mode 100644
index 0000000..9fe0aec
--- /dev/null
+++ b/test/test_p2p_tls.cpp
@@ -0,0 +1,317 @@
+/**
+ * Copyright (c) 2019 Ava Labs, Inc.
+ *
+ * Author: Ted Yin <[email protected]>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is furnished to do
+ * so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <cstdio>
+#include <cstdint>
+#include <string>
+#include <functional>
+#include <unordered_map>
+
+#include "salticidae/msg.h"
+#include "salticidae/event.h"
+#include "salticidae/network.h"
+#include "salticidae/stream.h"
+
+using salticidae::NetAddr;
+using salticidae::DataStream;
+using salticidae::htole;
+using salticidae::letoh;
+using salticidae::EventContext;
+using salticidae::ThreadCall;
+using salticidae::PKey;
+using std::placeholders::_1;
+using std::placeholders::_2;
+
+using PeerNetwork = salticidae::PeerNetwork<uint8_t>;
+
+struct MsgText {
+    static const uint8_t opcode = 0x0;
+    DataStream serialized;
+    uint64_t id;
+    std::string text;
+
+    MsgText(uint64_t id, const std::string &text) {
+        serialized << salticidae::htole(id) << salticidae::htole((uint32_t)text.length()) << text;
+    }
+
+    MsgText(DataStream &&s) {
+        uint32_t len;
+        s >> id;
+        id = salticidae::letoh(id);
+        s >> len;
+        len = salticidae::letoh(len);
+        text = std::string((const char *)s.get_data_inplace(len), len);
+    }
+};
+
+const uint8_t MsgText::opcode;
+
+struct Net {
+    uint64_t id;
+    EventContext ec;
+    ThreadCall tc;
+    std::thread th;
+    PeerNetwork *net;
+    const std::string listen_addr;
+
+    Net(uint64_t id, uint16_t port): id(id), tc(ec), listen_addr("127.0.0.1:"+ std::to_string(port)) {
+        auto tls_key = new PKey(PKey::create_privkey_rsa(2048));
+        auto tls_cert = new salticidae::X509(salticidae::X509::create_self_signed_from_pubkey(*tls_key));
+        tls_key->save_privkey_to_file(std::to_string(port) + "_pkey.pem");
+        tls_cert->save_to_file(std::to_string(port) + ".pem");
+        net = new PeerNetwork(ec, PeerNetwork::Config(salticidae::ConnPool::Config()
+                    .enable_tls(true)
+                    .tls_key(tls_key)
+                    .tls_cert(tls_cert)
+                ).conn_timeout(5)
+                .ping_period(2)
+                .id_mode(PeerNetwork::IdentityMode::ADDR_BASED));
+        net->reg_handler([this](const MsgText &msg, const PeerNetwork::conn_t &) {
+            fprintf(stdout, "net %lu: peer %lu says %s\n", this->id, msg.id, msg.text.c_str());
+        });
+        net->reg_conn_handler([this](const salticidae::ConnPool::conn_t &conn, bool connected) {
+            if (connected)
+            {
+                fprintf(stdout, "net %lu: peer's cert is %s\n", this->id,
+                        salticidae::get_hash(conn->get_peer_cert()->get_der()).to_hex().c_str());
+            }
+            return true;
+        });
+        net->reg_error_handler([this](const std::exception_ptr _err, bool fatal) {
+            try {
+                std::rethrow_exception(_err);
+            } catch (const std::exception &err) {
+                fprintf(stdout, "net %lu: captured %s error during an async call: %s\n",
+                        this->id, fatal ? "fatal" : "recoverable", err.what());
+            }
+        });
+        net->reg_peer_handler([this](const PeerNetwork::conn_t &conn, bool connected) {
+            fprintf(stdout, "net %lu: %s peer %s\n", this->id,
+                    connected ? "connected to" : "disconnected from",
+                    std::string(conn->get_peer_addr()).c_str());
+        });
+        net->reg_unknown_peer_handler([this](const NetAddr &claimed_addr) {
+            fprintf(stdout, "net %lu: unknown peer %s attempts to connnect\n",
+                    this->id, std::string(claimed_addr).c_str());
+        });
+        th = std::thread([=](){
+            try {
+                net->start();
+                net->listen(NetAddr(listen_addr));
+                fprintf(stdout, "net %lu: listen to %s\n", id, listen_addr.c_str());
+                ec.dispatch();
+            } catch (std::exception &err) {
+                fprintf(stdout, "net %lu: got error during a sync call: %s\n", id, err.what());
+            }
+            fprintf(stdout, "net %lu: main loop ended\n", id);
+        });
+    }
+
+    void add_peer(const std::string &listen_addr) {
+        try {
+            net->add_peer(NetAddr(listen_addr));
+        } catch (std::exception &err) {
+            fprintf(stdout, "net %lu: got error during a sync call: %s\n", id, err.what());
+        }
+    }
+
+    void del_peer(const std::string &listen_addr) {
+        try {
+            net->del_peer(NetAddr(listen_addr));
+        } catch (std::exception &err) {
+            fprintf(stdout, "net %lu: got error during a sync call: %s\n", id, err.what());
+        }
+    }
+
+    void stop_join() {
+        tc.async_call([ec=this->ec](ThreadCall::Handle &) { ec.stop(); });
+        th.join();
+    }
+
+    ~Net() { delete net; }
+};
+
+std::unordered_map<uint64_t, Net *> nets;
+std::unordered_map<std::string, std::function<void(char *)> > cmd_map;
+
+int read_int(char *buff) {
+    scanf("%64s", buff);
+    try {
+        int t = std::stoi(buff);
+        if (t < 0) throw std::invalid_argument("negative");
+        return t;
+    } catch (std::invalid_argument) {
+        fprintf(stdout, "expect a non-negative integer\n");
+        return -1;
+    }
+}
+
+int main(int argc, char **argv) {
+    int i;
+    fprintf(stdout, "p2p network library playground (type help for more info)\n");
+    fprintf(stdout, "========================================================\n");
+
+    auto cmd_exit = [](char *) {
+        for (auto &p: nets)
+        {
+            p.second->stop_join();
+            delete p.second;
+        }
+        exit(0);
+    };
+
+    auto cmd_add = [](char *buff) {
+        int id = read_int(buff);
+        if (id < 0) return;
+        if (nets.count(id))
+        {
+            fprintf(stdout, "net id already exists\n");
+            return;
+        }
+        int port = read_int(buff);
+        if (port < 0) return;
+        if (port >= 65536)
+        {
+            fprintf(stdout, "port should be < 65536\n");
+            return;
+        }
+        nets.insert(std::make_pair(id, new Net(id, port)));
+    };
+
+    auto cmd_ls = [](char *) {
+        for (auto &p: nets)
+            fprintf(stdout, "%d -> %s\n", p.first, p.second->listen_addr.c_str());
+    };
+
+    auto cmd_del = [](char *buff) {
+        int id = read_int(buff);
+        if (id < 0) return;
+        auto it = nets.find(id);
+        if (it == nets.end())
+        {
+            fprintf(stdout, "net id does not exist\n");
+            return;
+        }
+        it->second->stop_join();
+        delete it->second;
+        nets.erase(it);
+    };
+
+    auto cmd_addpeer = [](char *buff) {
+        int id = read_int(buff);
+        if (id < 0) return;
+        auto it = nets.find(id);
+        if (it == nets.end())
+        {
+            fprintf(stdout, "net id does not exist\n");
+            return;
+        }
+        int id2 = read_int(buff);
+        if (id2 < 0) return;
+        auto it2 = nets.find(id2);
+        if (it2 == nets.end())
+        {
+            fprintf(stdout, "net id does not exist\n");
+            return;
+        }
+        it->second->add_peer(it2->second->listen_addr);
+    };
+
+    auto cmd_delpeer = [](char *buff) {
+        int id = read_int(buff);
+        if (id < 0) return;
+        auto it = nets.find(id);
+        if (it == nets.end())
+        {
+            fprintf(stdout, "net id does not exist\n");
+            return;
+        }
+        int id2 = read_int(buff);
+        if (id2 < 0) return;
+        auto it2 = nets.find(id2);
+        if (it2 == nets.end())
+        {
+            fprintf(stdout, "net id does not exist\n");
+            return;
+        }
+        it->second->del_peer(it2->second->listen_addr);
+    };
+
+    auto cmd_msg = [](char *buff) {
+        int id = read_int(buff);
+        if (id < 0) return;
+        auto it = nets.find(id);
+        if (it == nets.end())
+        {
+            fprintf(stdout, "net id does not exist\n");
+            return;
+        }
+        int id2 = read_int(buff);
+        if (id2 < 0) return;
+        auto it2 = nets.find(id2);
+        if (it2 == nets.end())
+        {
+            fprintf(stdout, "net id does not exist\n");
+            return;
+        }
+        scanf("%64s", buff);
+        it->second->net->send_msg(MsgText(id, buff), it2->second->listen_addr);
+    };
+
+    auto cmd_help = [](char *) {
+        fprintf(stdout,
+            "add <node-id> <port> -- start a node (create a PeerNetwork instance)\n"
+            "addpeer <node-id> <peer-id> -- add a peer to a given node\n"
+            "delpeer <node-id> <peer-id> -- add a peer to a given node\n"
+            "del <node-id> -- remove a node (destroy a PeerNetwork instance)\n"
+            "msg <node-id> <peer-id> <msg> -- send a text message to a node\n"
+            "ls -- list all node ids\n"
+            "exit -- quit the program\n"
+            "help -- show this info\n"
+        );
+    };
+
+    cmd_map.insert(std::make_pair("add", cmd_add));
+    cmd_map.insert(std::make_pair("addpeer", cmd_addpeer));
+    cmd_map.insert(std::make_pair("del", cmd_del));
+    cmd_map.insert(std::make_pair("delpeer", cmd_delpeer));
+    cmd_map.insert(std::make_pair("msg", cmd_msg));
+    cmd_map.insert(std::make_pair("ls", cmd_ls));
+    cmd_map.insert(std::make_pair("exit", cmd_exit));
+    cmd_map.insert(std::make_pair("help", cmd_help));
+
+    for (;;)
+    {
+        fprintf(stdout, "> ");
+        char buff[128];
+        if (scanf("%64s", buff) == EOF) break;
+        auto it = cmd_map.find(buff);
+        if (it == cmd_map.end())
+            fprintf(stdout, "invalid comand \"%s\"\n", buff);
+        else
+            (it->second)(buff);
+    }
+
+    return 0;
+}