125 lines
5 KiB
C++
125 lines
5 KiB
C++
#include "server_https.hpp"
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//Added for the json-example:
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#include <boost/property_tree/ptree.hpp>
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#include <boost/property_tree/json_parser.hpp>
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#include<fstream>
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using namespace std;
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using namespace SimpleWeb;
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//Added for the json-example:
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using namespace boost::property_tree;
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int main() {
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//HTTPS-server at port 8080 using 4 threads
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Server<HTTPS> httpserver(8080, 4, "server.crt", "server.key");
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//Add resources using regular expression for path, a method-string, and an anonymous function
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//POST-example for the path /string, responds the posted string
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httpserver.resources["^/string/?$"]["POST"]=[](ostream& response, const Request& request, const smatch& path_match) {
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//Retrieve string from istream (*request.content)
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stringstream ss;
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*request.content >> ss.rdbuf();
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string content=ss.str();
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response << "HTTP/1.1 200 OK\r\nContent-Length: " << content.length() << "\r\n\r\n" << content;
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};
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//POST-example for the path /json, responds firstName+" "+lastName from the posted json
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//Responds with an appropriate error message if the posted json is not valid, or if firstName or lastName is missing
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//Example posted json:
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//{
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// "firstName": "John",
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// "lastName": "Smith",
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// "age": 25
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//}
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httpserver.resources["^/json/?$"]["POST"]=[](ostream& response, const Request& request, const smatch& path_match) {
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try {
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ptree pt;
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read_json(*request.content, pt);
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string name=pt.get<string>("firstName")+" "+pt.get<string>("lastName");
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response << "HTTP/1.1 200 OK\r\nContent-Length: " << name.length() << "\r\n\r\n" << name;
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}
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catch(exception& e) {
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response << "HTTP/1.1 400 Bad Request\r\nContent-Length: " << strlen(e.what()) << "\r\n\r\n" << e.what();
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}
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};
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//GET-example for the path /info
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//Responds with request-information
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httpserver.resources["^/info/?$"]["GET"]=[](ostream& response, const Request& request, const smatch& path_match) {
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stringstream content_stream;
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content_stream << "<h1>Request:</h1>";
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content_stream << request.method << " " << request.path << " HTTP/" << request.http_version << "<br>";
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for(auto& header: request.header) {
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content_stream << header.first << ": " << header.second << "<br>";
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}
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//find length of content_stream (length received using content_stream.tellp())
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content_stream.seekp(0, ios::end);
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response << "HTTP/1.1 200 OK\r\nContent-Length: " << content_stream.tellp() << "\r\n\r\n" << content_stream.rdbuf();
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};
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//GET-example for the path /match/[number], responds with the matched string in path (number)
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//For instance a request GET /match/123 will receive: 123
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httpserver.resources["^/match/([0-9]+)/?$"]["GET"]=[](ostream& response, const Request& request, const smatch& path_match) {
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string number=path_match[1];
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response << "HTTP/1.1 200 OK\r\nContent-Length: " << number.length() << "\r\n\r\n" << number;
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};
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//Default GET-example. If no other matches, this anonymous function will be called.
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//Will respond with content in the web/-directory, and its subdirectories.
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//Default file: index.html
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//Can for instance be used to retrieve an HTML 5 client that uses REST-resources on this server
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httpserver.default_resource["^/?(.*)$"]["GET"]=[](ostream& response, const Request& request, const smatch& path_match) {
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string filename="web/";
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string path=path_match[1];
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//Remove all but the last '.' (so we can't leave the web-directory)
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size_t last_pos=path.rfind(".");
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size_t current_pos=0;
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size_t pos;
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while((pos=path.find('.', current_pos))!=string::npos && pos!=last_pos) {
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cout << pos << endl;
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current_pos=pos;
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path.erase(pos, 1);
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last_pos--;
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}
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filename+=path;
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ifstream ifs;
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//A simple platform-independent file-or-directory check do not exist, but this works in most of the cases:
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if(filename.find('.')==string::npos) {
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if(filename[filename.length()-1]!='/')
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filename+='/';
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filename+="index.html";
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}
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ifs.open(filename, ifstream::in);
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if(ifs) {
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ifs.seekg(0, ios::end);
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size_t length=ifs.tellg();
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ifs.seekg(0, ios::beg);
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//The file-content is copied to the response-stream. Should not be used for very large files.
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response << "HTTP/1.1 200 OK\r\nContent-Length: " << length << "\r\n\r\n" << ifs.rdbuf();
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ifs.close();
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}
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else {
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string content="Could not open file "+filename;
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response << "HTTP/1.1 400 Bad Request\r\nContent-Length: " << content.length() << "\r\n\r\n" << content;
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}
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};
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//Start HTTP-server
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httpserver.start();
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return 0;
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}
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