From 031615ac866cc3c8f1900dd4b4aae2106ad31230 Mon Sep 17 00:00:00 2001
From: ipknHama <ipknhama@gmail.com>
Date: Thu, 7 Aug 2014 01:18:33 +0900
Subject: source resturcturing + CMake

---
 examples/CMakeLists.txt    | 21 +++++++++++
 examples/example.cpp       | 77 ++++++++++++++++++++++++++++++++++++++
 examples/example.py        | 19 ++++++++++
 examples/example_chat.cpp  | 92 ++++++++++++++++++++++++++++++++++++++++++++++
 examples/example_chat.html | 54 +++++++++++++++++++++++++++
 5 files changed, 263 insertions(+)
 create mode 100644 examples/CMakeLists.txt
 create mode 100644 examples/example.cpp
 create mode 100644 examples/example.py
 create mode 100644 examples/example_chat.cpp
 create mode 100644 examples/example_chat.html

(limited to 'examples')

diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt
new file mode 100644
index 0000000..7313adf
--- /dev/null
+++ b/examples/CMakeLists.txt
@@ -0,0 +1,21 @@
+cmake_minimum_required(VERSION 2.8)
+project (crow_examples)
+ 
+add_executable(example example.cpp)
+target_link_libraries(example crow)
+target_link_libraries(example ${Boost_LIBRARIES} )
+set_target_properties(example PROPERTIES COMPILE_FLAGS "-Wall -std=c++1y")
+
+add_executable(example_chat example_chat.cpp)
+target_link_libraries(example_chat crow)
+target_link_libraries(example_chat ${Boost_LIBRARIES} )
+set_target_properties(example_chat PROPERTIES COMPILE_FLAGS "-Wall -std=c++1y")
+message(${CMAKE_CURRENT_BINARY_DIR})
+message(${PROJECT_SOURCE_DIR})
+add_custom_command(OUTPUT example_chat.html
+        #TARGET example_chat 
+        COMMAND ${CMAKE_COMMAND} -E
+        copy ${PROJECT_SOURCE_DIR}/example_chat.html ${CMAKE_CURRENT_BINARY_DIR}/example_chat.html
+        DEPENDS ${PROJECT_SOURCE_DIR}/example_chat.html 
+        )
+add_custom_target(example_chat_copy ALL DEPENDS example_chat.html)
diff --git a/examples/example.cpp b/examples/example.cpp
new file mode 100644
index 0000000..f21a7d6
--- /dev/null
+++ b/examples/example.cpp
@@ -0,0 +1,77 @@
+#include "crow.h"
+#include "json.h"
+
+#include <sstream>
+
+class ExampleLogHandler : public crow::ILogHandler {
+    public:
+        void log(string message, crow::LogLevel level) override {
+            cerr << "ExampleLogHandler -> " << message;
+        }
+};
+
+int main()
+{
+    crow::Crow app;
+
+    CROW_ROUTE(app, "/")
+        .name("hello")
+    ([]{
+        return "Hello World!";
+    });
+
+    CROW_ROUTE(app, "/about")
+    ([](){
+        return "About Crow example.";
+    });
+
+    // simple json response
+    CROW_ROUTE(app, "/json")
+    ([]{
+        crow::json::wvalue x;
+        x["message"] = "Hello, World!";
+        return x;
+    });
+
+    CROW_ROUTE(app,"/hello/<int>")
+    ([](int count){
+        if (count > 100)
+            return crow::response(400);
+        std::ostringstream os;
+        os << count << " bottles of beer!";
+        return crow::response(os.str());
+    });
+
+    CROW_ROUTE(app,"/add/<int>/<int>")
+    ([](const crow::request& req, crow::response& res, int a, int b){
+        std::ostringstream os;
+        os << a+b;
+        res.write(os.str());
+        res.end();
+    });
+
+    // Compile error with message "Handler type is mismatched with URL paramters"
+    //CROW_ROUTE(app,"/another/<int>")
+    //([](int a, int b){
+        //return crow::response(500);
+    //});
+
+    // more json example
+    CROW_ROUTE(app, "/add_json")
+    ([](const crow::request& req){
+        auto x = crow::json::load(req.body);
+        if (!x)
+            return crow::response(400);
+        int sum = x["a"].i()+x["b"].i();
+        std::ostringstream os;
+        os << sum;
+        return crow::response{os.str()};
+    });
+
+    //crow::logger::setLogLevel(LogLevel::INFO);
+    //crow::logger::setHandler(std::make_shared<ExampleLogHandler>());
+
+    app.port(18080)
+        .multithreaded()
+        .run();
+}
diff --git a/examples/example.py b/examples/example.py
new file mode 100644
index 0000000..1fd8fcd
--- /dev/null
+++ b/examples/example.py
@@ -0,0 +1,19 @@
+from flask import Flask
+app = Flask(__name__)
+
+@app.route("/")
+def hello():
+    return "Hello World!"
+
+@app.route("/about/<path:path>/hello")
+def hello1(path):
+    return "about1"
+
+@app.route("/about")
+def hello2():
+    return "about2"
+
+print app.url_map
+
+if __name__ == "__main__":
+    app.run(host="0.0.0.0", port=8888)
diff --git a/examples/example_chat.cpp b/examples/example_chat.cpp
new file mode 100644
index 0000000..b12926a
--- /dev/null
+++ b/examples/example_chat.cpp
@@ -0,0 +1,92 @@
+#include "crow.h"
+#include "json.h"
+#include "mustache.h"
+#include <string>
+#include <vector>
+#include <chrono>
+
+using namespace std;
+
+vector<string> msgs;
+vector<pair<crow::response*, decltype(chrono::steady_clock::now())>> ress;
+
+void broadcast(const string& msg)
+{
+    msgs.push_back(msg);
+    crow::json::wvalue x;
+    x["msgs"][0] = msgs.back();
+    x["last"] = msgs.size();
+    string body = crow::json::dump(x);
+    for(auto p:ress)
+    {
+        auto* res = p.first;
+        CROW_LOG_DEBUG << res << " replied: " << body;
+        res->end(body);
+    }
+    ress.clear();
+}
+
+int main()
+{
+    crow::App app;
+    crow::mustache::set_base(".");
+
+    CROW_ROUTE(app, "/")
+    ([]{
+        crow::mustache::context ctx;
+        return crow::mustache::load("example_chat.html").render();
+    });
+
+    CROW_ROUTE(app, "/logs")
+    ([]{
+        CROW_LOG_INFO << "logs requested";
+        crow::json::wvalue x;
+        int start = max(0, (int)msgs.size()-100);
+        for(int i = start; i < (int)msgs.size(); i++)
+            x["msgs"][i-start] = msgs[i];
+        x["last"] = msgs.size();
+        CROW_LOG_INFO << "logs completed";
+        return x;
+    });
+
+    CROW_ROUTE(app, "/logs/<int>")
+    ([](const crow::request& req, crow::response& res, int after){
+        CROW_LOG_INFO << "logs with last " << after;
+        if (after < (int)msgs.size())
+        {
+            crow::json::wvalue x;
+            for(int i = after; i < (int)msgs.size(); i ++)
+                x["msgs"][i-after] = msgs[i];
+            x["last"] = msgs.size();
+
+            res.write(crow::json::dump(x));
+            res.end();
+        }
+        else
+        {
+            vector<pair<crow::response*, decltype(chrono::steady_clock::now())>> filtered;
+            for(auto p : ress)
+            {
+                if (p.first->is_alive() && chrono::steady_clock::now() - p.second < chrono::seconds(30))
+                    filtered.push_back(p);
+                else
+                    p.first->end();
+            }
+            ress.swap(filtered);
+            ress.push_back({&res, chrono::steady_clock::now()});
+            CROW_LOG_DEBUG << &res << " stored " << ress.size();
+        }
+    });
+
+    CROW_ROUTE(app, "/send")
+    ([](const crow::request& req)
+    {
+        CROW_LOG_INFO << "msg from client: " << req.body;
+        broadcast(req.body);
+        return "";
+    });
+
+    app.port(40080)
+        //.multithreaded()
+        .run();
+}
diff --git a/examples/example_chat.html b/examples/example_chat.html
new file mode 100644
index 0000000..233e093
--- /dev/null
+++ b/examples/example_chat.html
@@ -0,0 +1,54 @@
+<html>
+<head>
+<script src="//code.jquery.com/jquery-1.11.0.min.js"></script>
+</head>
+<body>
+<input id="msg" type="text">
+<button id="send">Send</button>
+<div id="logs">
+</div>
+<script>
+$(document).ready(function(){
+	$("#send").click(function(){
+		var msg = $("#msg").val();
+		console.log(msg);
+		if (msg.length > 0)
+			$.post("/send", msg);
+		$("#msg").val("");
+	});
+	$("#msg").keyup(function(event){
+		if(event.keyCode == 13){
+			$("#send").click();
+		}
+	});
+	var lastLog = 0;
+	var updateLog;
+	updateLog = function(data)
+	{
+		console.log("recv ");
+		console.log(data);
+		var lastLog = data.last*1;
+		console.log("lastLog: " + lastLog);
+		var s = "";
+        function htmlEncode(s)
+        {
+            return s.replace(/&(?!\w+([;\s]|$))/g, "&amp;")
+            .replace(/</g, "&lt;").replace(/>/g, "&gt;");
+        }
+		for(var x in data.msgs)
+		{
+
+			s = htmlEncode(data.msgs[x]) + "<BR>" + s;
+		}
+		$("#logs").html(s+$("#logs").html());
+		var failFunction;
+		failFunction = function(){
+			$.getJSON("/logs/"+lastLog, updateLog).fail(failFunction);
+		};
+		$.getJSON("/logs/"+lastLog, updateLog).fail(failFunction);
+	}
+	$.getJSON("/logs", updateLog);
+});
+</script>
+</body>
+</html>
-- 
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