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Added .clang-format file and applied style to source files

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eidheim 2017-06-26 15:19:52 +02:00
commit e50d2fc63a
13 changed files with 2552 additions and 2538 deletions
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424
http_examples.cpp
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@ -1,16 +1,16 @@
#include "server_http.hpp"
#include "client_http.hpp"
#include "server_http.hpp"
//Added for the json-example
#define BOOST_SPIRIT_THREADSAFE
#include <boost/property_tree/ptree.hpp>
#include <boost/property_tree/json_parser.hpp>
#include <boost/property_tree/ptree.hpp>
//Added for the default_resource example
#include <fstream>
#include <boost/filesystem.hpp>
#include <vector>
#include <algorithm>
#include <boost/filesystem.hpp>
#include <fstream>
#include <vector>
#ifdef HAVE_OPENSSL
#include "crypto.hpp"
#endif
@ -23,224 +23,224 @@ typedef SimpleWeb::Server<SimpleWeb::HTTP> HttpServer;
typedef SimpleWeb::Client<SimpleWeb::HTTP> HttpClient;
//Added for the default_resource example
void default_resource_send(const HttpServer &server, const shared_ptr<HttpServer::Response> &response,
const shared_ptr<ifstream> &ifs);
void default_resource_send(const HttpServer &server, const shared_ptr<HttpServer::Response> &response, const shared_ptr<ifstream> &ifs);
int main() {
//HTTP-server at port 8080 using 1 thread
//Unless you do more heavy non-threaded processing in the resources,
//1 thread is usually faster than several threads
HttpServer server;
server.config.port=8080;
//Add resources using path-regex and method-string, and an anonymous function
//POST-example for the path /string, responds the posted string
server.resource["^/string$"]["POST"]=[](shared_ptr<HttpServer::Response> response, shared_ptr<HttpServer::Request> request) {
//Retrieve string:
auto content=request->content.string();
//request->content.string() is a convenience function for:
//stringstream ss;
//ss << request->content.rdbuf();
//auto content=ss.str();
*response << "HTTP/1.1 200 OK\r\nContent-Length: " << content.length() << "\r\n\r\n" << content;
// Alternatively, use one of the convenience functions, for instance:
// response->write(content);
};
//POST-example for the path /json, responds firstName+" "+lastName from the posted json
//Responds with an appropriate error message if the posted json is not valid, or if firstName or lastName is missing
//Example posted json:
//{
// "firstName": "John",
// "lastName": "Smith",
// "age": 25
//}
server.resource["^/json$"]["POST"]=[](shared_ptr<HttpServer::Response> response, shared_ptr<HttpServer::Request> request) {
try {
ptree pt;
read_json(request->content, pt);
//HTTP-server at port 8080 using 1 thread
//Unless you do more heavy non-threaded processing in the resources,
//1 thread is usually faster than several threads
HttpServer server;
server.config.port = 8080;
auto name=pt.get<string>("firstName")+" "+pt.get<string>("lastName");
//Add resources using path-regex and method-string, and an anonymous function
//POST-example for the path /string, responds the posted string
server.resource["^/string$"]["POST"] = [](shared_ptr<HttpServer::Response> response, shared_ptr<HttpServer::Request> request) {
//Retrieve string:
auto content = request->content.string();
//request->content.string() is a convenience function for:
//stringstream ss;
//ss << request->content.rdbuf();
//auto content=ss.str();
*response << "HTTP/1.1 200 OK\r\n"
<< "Content-Type: application/json\r\n"
<< "Content-Length: " << name.length() << "\r\n\r\n"
<< name;
}
catch(const exception &e) {
*response << "HTTP/1.1 400 Bad Request\r\nContent-Length: " << strlen(e.what()) << "\r\n\r\n" << e.what();
}
// Alternatively, using a convenience function:
// try {
// ptree pt;
// read_json(request->content, pt);
// auto name=pt.get<string>("firstName")+" "+pt.get<string>("lastName");
// response->write(name, {{"Content-Type", "application/json"}});
// }
// catch(const exception &e) {
// response->write(SimpleWeb::StatusCode::client_error_bad_request, e.what());
// }
};
*response << "HTTP/1.1 200 OK\r\nContent-Length: " << content.length() << "\r\n\r\n"
<< content;
//GET-example for the path /info
//Responds with request-information
server.resource["^/info$"]["GET"]=[](shared_ptr<HttpServer::Response> response, shared_ptr<HttpServer::Request> request) {
stringstream stream;
stream << "<h1>Request from " << request->remote_endpoint_address << " (" << request->remote_endpoint_port << ")</h1>";
stream << request->method << " " << request->path << " HTTP/" << request->http_version << "<br>";
for(auto &header: request->header)
stream << header.first << ": " << header.second << "<br>";
//find length of content_stream (length received using content_stream.tellp())
stream.seekp(0, ios::end);
*response << "HTTP/1.1 200 OK\r\nContent-Length: " << stream.tellp() << "\r\n\r\n" << stream.rdbuf();
// Alternatively, using a convenience function:
// stringstream stream;
// stream << "<h1>Request from " << request->remote_endpoint_address << " (" << request->remote_endpoint_port << ")</h1>";
// stream << request->method << " " << request->path << " HTTP/" << request->http_version << "<br>";
// for(auto &header: request->header)
// stream << header.first << ": " << header.second << "<br>";
// response->write(stream);
};
//GET-example for the path /match/[number], responds with the matched string in path (number)
//For instance a request GET /match/123 will receive: 123
server.resource["^/match/([0-9]+)$"]["GET"]=[](shared_ptr<HttpServer::Response> response, shared_ptr<HttpServer::Request> request) {
string number=request->path_match[1];
*response << "HTTP/1.1 200 OK\r\nContent-Length: " << number.length() << "\r\n\r\n" << number;
// Alternatively, using a convenience function:
// response->write(request->path_match[1]);
};
//Get example simulating heavy work in a separate thread
server.resource["^/work$"]["GET"]=[](shared_ptr<HttpServer::Response> response, shared_ptr<HttpServer::Request> /*request*/) {
thread work_thread([response] {
this_thread::sleep_for(chrono::seconds(5));
response->write("Work done");
});
work_thread.detach();
};
//Default GET-example. If no other matches, this anonymous function will be called.
//Will respond with content in the web/-directory, and its subdirectories.
//Default file: index.html
//Can for instance be used to retrieve an HTML 5 client that uses REST-resources on this server
server.default_resource["GET"]=[&server](shared_ptr<HttpServer::Response> response, shared_ptr<HttpServer::Request> request) {
try {
auto web_root_path=boost::filesystem::canonical("web");
auto path=boost::filesystem::canonical(web_root_path/request->path);
//Check if path is within web_root_path
if(distance(web_root_path.begin(), web_root_path.end())>distance(path.begin(), path.end()) ||
!equal(web_root_path.begin(), web_root_path.end(), path.begin()))
throw invalid_argument("path must be within root path");
if(boost::filesystem::is_directory(path))
path/="index.html";
SimpleWeb::CaseInsensitiveMultimap header;
// Uncomment the following line to enable Cache-Control
// header.emplace("Cache-Control", "max-age=86400");
// Alternatively, use one of the convenience functions, for instance:
// response->write(content);
};
//POST-example for the path /json, responds firstName+" "+lastName from the posted json
//Responds with an appropriate error message if the posted json is not valid, or if firstName or lastName is missing
//Example posted json:
//{
// "firstName": "John",
// "lastName": "Smith",
// "age": 25
//}
server.resource["^/json$"]["POST"] = [](shared_ptr<HttpServer::Response> response, shared_ptr<HttpServer::Request> request) {
try {
ptree pt;
read_json(request->content, pt);
auto name = pt.get<string>("firstName") + " " + pt.get<string>("lastName");
*response << "HTTP/1.1 200 OK\r\n"
<< "Content-Type: application/json\r\n"
<< "Content-Length: " << name.length() << "\r\n\r\n"
<< name;
}
catch(const exception &e) {
*response << "HTTP/1.1 400 Bad Request\r\nContent-Length: " << strlen(e.what()) << "\r\n\r\n"
<< e.what();
}
// Alternatively, using a convenience function:
// try {
// ptree pt;
// read_json(request->content, pt);
// auto name=pt.get<string>("firstName")+" "+pt.get<string>("lastName");
// response->write(name, {{"Content-Type", "application/json"}});
// }
// catch(const exception &e) {
// response->write(SimpleWeb::StatusCode::client_error_bad_request, e.what());
// }
};
//GET-example for the path /info
//Responds with request-information
server.resource["^/info$"]["GET"] = [](shared_ptr<HttpServer::Response> response, shared_ptr<HttpServer::Request> request) {
stringstream stream;
stream << "<h1>Request from " << request->remote_endpoint_address << " (" << request->remote_endpoint_port << ")</h1>";
stream << request->method << " " << request->path << " HTTP/" << request->http_version << "<br>";
for(auto &header : request->header)
stream << header.first << ": " << header.second << "<br>";
//find length of content_stream (length received using content_stream.tellp())
stream.seekp(0, ios::end);
*response << "HTTP/1.1 200 OK\r\nContent-Length: " << stream.tellp() << "\r\n\r\n"
<< stream.rdbuf();
// Alternatively, using a convenience function:
// stringstream stream;
// stream << "<h1>Request from " << request->remote_endpoint_address << " (" << request->remote_endpoint_port << ")</h1>";
// stream << request->method << " " << request->path << " HTTP/" << request->http_version << "<br>";
// for(auto &header: request->header)
// stream << header.first << ": " << header.second << "<br>";
// response->write(stream);
};
//GET-example for the path /match/[number], responds with the matched string in path (number)
//For instance a request GET /match/123 will receive: 123
server.resource["^/match/([0-9]+)$"]["GET"] = [](shared_ptr<HttpServer::Response> response, shared_ptr<HttpServer::Request> request) {
string number = request->path_match[1];
*response << "HTTP/1.1 200 OK\r\nContent-Length: " << number.length() << "\r\n\r\n"
<< number;
// Alternatively, using a convenience function:
// response->write(request->path_match[1]);
};
//Get example simulating heavy work in a separate thread
server.resource["^/work$"]["GET"] = [](shared_ptr<HttpServer::Response> response, shared_ptr<HttpServer::Request> /*request*/) {
thread work_thread([response] {
this_thread::sleep_for(chrono::seconds(5));
response->write("Work done");
});
work_thread.detach();
};
//Default GET-example. If no other matches, this anonymous function will be called.
//Will respond with content in the web/-directory, and its subdirectories.
//Default file: index.html
//Can for instance be used to retrieve an HTML 5 client that uses REST-resources on this server
server.default_resource["GET"] = [&server](shared_ptr<HttpServer::Response> response, shared_ptr<HttpServer::Request> request) {
try {
auto web_root_path = boost::filesystem::canonical("web");
auto path = boost::filesystem::canonical(web_root_path / request->path);
//Check if path is within web_root_path
if(distance(web_root_path.begin(), web_root_path.end()) > distance(path.begin(), path.end()) ||
!equal(web_root_path.begin(), web_root_path.end(), path.begin()))
throw invalid_argument("path must be within root path");
if(boost::filesystem::is_directory(path))
path /= "index.html";
SimpleWeb::CaseInsensitiveMultimap header;
// Uncomment the following line to enable Cache-Control
// header.emplace("Cache-Control", "max-age=86400");
#ifdef HAVE_OPENSSL
// Uncomment the following lines to enable ETag
// {
// ifstream ifs(path.string(), ifstream::in | ios::binary);
// if(ifs) {
// auto hash=SimpleWeb::Crypto::to_hex_string(SimpleWeb::Crypto::md5(ifs));
// header.emplace("ETag", "\""+hash+"\"");
// auto it=request->header.find("If-None-Match");
// if(it!=request->header.end()) {
// if(!it->second.empty() && it->second.compare(1, hash.size(), hash)==0) {
// response->write(SimpleWeb::StatusCode::redirection_not_modified, header);
// return;
// }
// }
// }
// else
// throw invalid_argument("could not read file");
// }
// Uncomment the following lines to enable ETag
// {
// ifstream ifs(path.string(), ifstream::in | ios::binary);
// if(ifs) {
// auto hash = SimpleWeb::Crypto::to_hex_string(SimpleWeb::Crypto::md5(ifs));
// header.emplace("ETag", "\"" + hash + "\"");
// auto it = request->header.find("If-None-Match");
// if(it != request->header.end()) {
// if(!it->second.empty() && it->second.compare(1, hash.size(), hash) == 0) {
// response->write(SimpleWeb::StatusCode::redirection_not_modified, header);
// return;
// }
// }
// }
// else
// throw invalid_argument("could not read file");
// }
#endif
auto ifs=make_shared<ifstream>();
ifs->open(path.string(), ifstream::in | ios::binary | ios::ate);
if(*ifs) {
auto length=ifs->tellg();
ifs->seekg(0, ios::beg);
header.emplace("Content-Length", to_string(length));
response->write(header);
default_resource_send(server, response, ifs);
}
else
throw invalid_argument("could not read file");
}
catch(const exception &e) {
response->write(SimpleWeb::StatusCode::client_error_bad_request, "Could not open path "+request->path+": "+e.what());
}
};
server.on_error=[](std::shared_ptr<HttpServer::Request> /*request*/, const SimpleWeb::error_code &/*ec*/) {
// handle errors here
};
thread server_thread([&server](){
//Start server
server.start();
});
//Wait for server to start so that the client can connect
this_thread::sleep_for(chrono::seconds(1));
//Client examples
HttpClient client("localhost:8080");
// synchronous request examples
auto r1=client.request("GET", "/match/123");
cout << r1->content.rdbuf() << endl; // Alternatively, use the convenience function r1->content.string()
auto ifs = make_shared<ifstream>();
ifs->open(path.string(), ifstream::in | ios::binary | ios::ate);
string json_string="{\"firstName\": \"John\",\"lastName\": \"Smith\",\"age\": 25}";
auto r2=client.request("POST", "/string", json_string);
cout << r2->content.rdbuf() << endl;
// asynchronous request example
client.request("POST", "/json", json_string, [](std::shared_ptr<HttpClient::Response> response, const SimpleWeb::error_code &ec) {
if(!ec)
cout << response->content.rdbuf() << endl;
});
client.io_service->reset(); // needed because the io_service has been run already in the synchronous examples
client.io_service->run();
server_thread.join();
return 0;
}
if(*ifs) {
auto length = ifs->tellg();
ifs->seekg(0, ios::beg);
void default_resource_send(const HttpServer &server, const shared_ptr<HttpServer::Response> &response,
const shared_ptr<ifstream> &ifs) {
//read and send 128 KB at a time
static vector<char> buffer(131072); // Safe when server is running on one thread
streamsize read_length;
if((read_length=ifs->read(&buffer[0], buffer.size()).gcount())>0) {
response->write(&buffer[0], read_length);
if(read_length==static_cast<streamsize>(buffer.size())) {
server.send(response, [&server, response, ifs](const SimpleWeb::error_code &ec) {
if(!ec)
default_resource_send(server, response, ifs);
else
cerr << "Connection interrupted" << endl;
});
}
header.emplace("Content-Length", to_string(length));
response->write(header);
default_resource_send(server, response, ifs);
}
else
throw invalid_argument("could not read file");
}
catch(const exception &e) {
response->write(SimpleWeb::StatusCode::client_error_bad_request, "Could not open path " + request->path + ": " + e.what());
}
};
server.on_error = [](std::shared_ptr<HttpServer::Request> /*request*/, const SimpleWeb::error_code & /*ec*/) {
// handle errors here
};
thread server_thread([&server]() {
//Start server
server.start();
});
//Wait for server to start so that the client can connect
this_thread::sleep_for(chrono::seconds(1));
//Client examples
HttpClient client("localhost:8080");
// synchronous request examples
auto r1 = client.request("GET", "/match/123");
cout << r1->content.rdbuf() << endl; // Alternatively, use the convenience function r1->content.string()
string json_string = "{\"firstName\": \"John\",\"lastName\": \"Smith\",\"age\": 25}";
auto r2 = client.request("POST", "/string", json_string);
cout << r2->content.rdbuf() << endl;
// asynchronous request example
client.request("POST", "/json", json_string, [](std::shared_ptr<HttpClient::Response> response, const SimpleWeb::error_code &ec) {
if(!ec)
cout << response->content.rdbuf() << endl;
});
client.io_service->reset(); // needed because the io_service has been run already in the synchronous examples
client.io_service->run();
server_thread.join();
}
void default_resource_send(const HttpServer &server, const shared_ptr<HttpServer::Response> &response, const shared_ptr<ifstream> &ifs) {
//read and send 128 KB at a time
static vector<char> buffer(131072); // Safe when server is running on one thread
streamsize read_length;
if((read_length = ifs->read(&buffer[0], buffer.size()).gcount()) > 0) {
response->write(&buffer[0], read_length);
if(read_length == static_cast<streamsize>(buffer.size())) {
server.send(response, [&server, response, ifs](const SimpleWeb::error_code &ec) {
if(!ec)
default_resource_send(server, response, ifs);
else
cerr << "Connection interrupted" << endl;
});
}
}
}