{

bool operator()(const std::pair<int, int> &left, const std::pair<int, int> &right) const

{

return left.second < right.second;

}

{

#if !defined(_WIN32) && !defined(__MINGW32__) && !defined(__CYGWIN__)

struct sigaction oldsig;

struct sigaction sig;

sig.sa_handler = &catcher;

sigemptyset(&sig.sa_mask);

#ifdef SA_INTERRUPT

sig.sa_flags = SA_INTERRUPT; /* SunOS */

#else // SA_INTERRUPT

sig.sa_flags = SA_RESTART;

#endif // SA_INTERRUPTT

if (0 != sigaction(SIGPIPE, &sig, &oldsig))

{

fprintf(stderr, "Failed to install SIGPIPE handler: %s\n", strerror(errno));

}

#endif

start_method(params._start_method),

max_threads(params._max_threads),

max_connections(params._max_connections),

memory_limit(params._memory_limit),

content_size_limit(params._content_size_limit),

connection_timeout(params._connection_timeout),

per_IP_connection_limit(params._per_IP_connection_limit),

log_access(params._log_access),

log_error(params._log_error),

validator(params._validator),

unescaper(params._unescaper),

bind_address(params._bind_address),

bind_socket(params._bind_socket),

max_thread_stack_size(params._max_thread_stack_size),

use_ssl(params._use_ssl),

use_ipv6(params._use_ipv6),

use_dual_stack(params._use_dual_stack),

debug(params._debug),

pedantic(params._pedantic),

https_mem_key(params._https_mem_key),

https_mem_cert(params._https_mem_cert),

https_mem_trust(params._https_mem_trust),

https_priorities(params._https_priorities),

cred_type(params._cred_type),

digest_auth_random(params._digest_auth_random),

nonce_nc_size(params._nonce_nc_size),

running(false),

default_policy(params._default_policy),

basic_auth_enabled(params._basic_auth_enabled),

digest_auth_enabled(params._digest_auth_enabled),

regex_checking(params._regex_checking),

ban_system_enabled(params._ban_system_enabled),

post_process_enabled(params._post_process_enabled),

put_processed_data_to_content(params._put_processed_data_to_content),

file_upload_target(params._file_upload_target),

file_upload_dir(params._file_upload_dir),

generate_random_filename_on_upload(params._generate_random_filename_on_upload),

deferred_enabled(params._deferred_enabled),

single_resource(params._single_resource),

tcp_nodelay(params._tcp_nodelay),

not_found_resource(params._not_found_resource),

method_not_allowed_resource(params._method_not_allowed_resource),

internal_error_resource(params._internal_error_resource)

{

ignore_sigpipe();

pthread_mutex_init(&mutexwait, nullptr);

pthread_cond_init(&mutexcond, nullptr);

{

// These parameters are passed to respect the MHD interface, but are not needed here.

std::ignore = cls;

std::ignore = connection;

std::ignore = toe;

delete static_cast<details::modded_request *>(*con_cls);

{

if (single_resource && ((resource != "" && resource != "/") || !family))

{

throw std::invalid_argument("The resource should be '' or '/' and be marked as family when using a single_resource server");

}

details::http_endpoint idx(resource, family, true, regex_checking);

pair<map<details::http_endpoint, http_resource *>::iterator, bool> result = registered_resources.insert(map<details::http_endpoint, http_resource *>::value_type(idx, hrm));

if (!family && result.second)

{

registered_resources_str.insert(pair<string, http_resource *>(idx.get_url_complete(), result.first->second));

}

return result.second;

{

struct

{

MHD_OptionItem operator()(enum MHD_OPTION opt, intptr_t val, void *ptr = nullptr)

{

MHD_OptionItem x = {opt, val, ptr};

return x;

}

} gen;

vector<struct MHD_OptionItem> iov;

iov.push_back(gen(MHD_OPTION_NOTIFY_COMPLETED, (intptr_t)&request_completed, nullptr));

iov.push_back(gen(MHD_OPTION_URI_LOG_CALLBACK, (intptr_t)&uri_log, this));

iov.push_back(gen(MHD_OPTION_EXTERNAL_LOGGER, (intptr_t)&error_log, this));

iov.push_back(gen(MHD_OPTION_UNESCAPE_CALLBACK, (intptr_t)&unescaper_func, this));

iov.push_back(gen(MHD_OPTION_CONNECTION_TIMEOUT, connection_timeout));

if (bind_socket != 0)

{

iov.push_back(gen(MHD_OPTION_LISTEN_SOCKET, bind_socket));

}

if (start_method == http_utils::THREAD_PER_CONNECTION && (max_threads != 0 || max_thread_stack_size != 0))

{

throw std::invalid_argument("Cannot specify maximum number of threads when using a thread per connection");

}

if (max_threads != 0)

{

iov.push_back(gen(MHD_OPTION_THREAD_POOL_SIZE, max_threads));

}

if (max_connections != 0)

{

iov.push_back(gen(MHD_OPTION_CONNECTION_LIMIT, max_connections));

}

if (memory_limit != 0)

{

iov.push_back(gen(MHD_OPTION_CONNECTION_MEMORY_LIMIT, memory_limit));

}

if (per_IP_connection_limit != 0)

{

iov.push_back(gen(MHD_OPTION_PER_IP_CONNECTION_LIMIT, per_IP_connection_limit));

}

if (max_thread_stack_size != 0)

{

iov.push_back(gen(MHD_OPTION_THREAD_STACK_SIZE, max_thread_stack_size));

}

if (nonce_nc_size != 0)

{

iov.push_back(gen(MHD_OPTION_NONCE_NC_SIZE, nonce_nc_size));

}

if (use_ssl)

{

// Need for const_cast to respect MHD interface that needs a void*

iov.push_back(gen(MHD_OPTION_HTTPS_MEM_KEY, 0, reinterpret_cast<void *>(const_cast<char *>(https_mem_key.c_str()))));

}

if (use_ssl)

{

// Need for const_cast to respect MHD interface that needs a void*

iov.push_back(gen(MHD_OPTION_HTTPS_MEM_CERT, 0, reinterpret_cast<void *>(const_cast<char *>(https_mem_cert.c_str()))));

}

if (https_mem_trust != "" && use_ssl)

{

// Need for const_cast to respect MHD interface that needs a void*

iov.push_back(gen(MHD_OPTION_HTTPS_MEM_TRUST, 0, reinterpret_cast<void *>(const_cast<char *>(https_mem_trust.c_str()))));

}

if (https_priorities != "" && use_ssl)

{

// Need for const_cast to respect MHD interface that needs a void*

iov.push_back(gen(MHD_OPTION_HTTPS_PRIORITIES, 0, reinterpret_cast<void *>(const_cast<char *>(https_priorities.c_str()))));

}

if (digest_auth_random != "")

{

// Need for const_cast to respect MHD interface that needs a char*

iov.push_back(gen(MHD_OPTION_DIGEST_AUTH_RANDOM, digest_auth_random.size(), const_cast<char *>(digest_auth_random.c_str())));

}

#ifdef HAVE_GNUTLS

if (cred_type != http_utils::NONE)

{

iov.push_back(gen(MHD_OPTION_HTTPS_CRED_TYPE, cred_type));

}

#endif // HAVE_GNUTLS

iov.push_back(gen(MHD_OPTION_END, 0, nullptr));

int start_conf = start_method;

if (use_ssl)

{

start_conf |= MHD_USE_SSL;

}

if (use_ipv6)

{

start_conf |= MHD_USE_IPv6;

}

if (use_dual_stack)

{

start_conf |= MHD_USE_DUAL_STACK;

}

if (debug)

{

start_conf |= MHD_USE_DEBUG;

}

if (pedantic)

{

start_conf |= MHD_USE_PEDANTIC_CHECKS;

}

if (deferred_enabled)

{

start_conf |= MHD_USE_SUSPEND_RESUME;

}

#ifdef USE_FASTOPEN

start_conf |= MHD_USE_TCP_FASTOPEN;

#endif

daemon = nullptr;

if (bind_address == nullptr)

{

daemon = MHD_start_daemon(start_conf, port, &policy_callback, this,

&answer_to_connection, this, MHD_OPTION_ARRAY,

&iov[0], MHD_OPTION_END);

}

else

{

daemon = MHD_start_daemon(start_conf, 1, &policy_callback, this,

&answer_to_connection, this, MHD_OPTION_ARRAY,

&iov[0], MHD_OPTION_SOCK_ADDR, bind_address, MHD_OPTION_END);

}

if (daemon == nullptr)

{

throw std::invalid_argument("Unable to connect daemon to port: " + std::to_string(port));

}

bool value_onclose = false;

running = true;

if (blocking)

{

pthread_mutex_lock(&mutexwait);

while (blocking && running)

{

pthread_cond_wait(&mutexcond, &mutexwait);

}

pthread_mutex_unlock(&mutexwait);

value_onclose = true;

}

return value_onclose;

{

if (!running)

return false;

pthread_mutex_lock(&mutexwait);

running = false;

pthread_cond_signal(&mutexcond);

pthread_mutex_unlock(&mutexwait);

MHD_stop_daemon(daemon);

shutdown(bind_socket, 2);

return true;

{

// family does not matter - it just checks the url_normalized anyhow

details::http_endpoint he(resource, false, true, regex_checking);

registered_resources.erase(he);

registered_resources.erase(he.get_url_complete());

registered_resources_str.erase(he.get_url_complete());

{

ip_representation t_ip(ip);

set<ip_representation>::iterator it = bans.find(t_ip);

if (it != bans.end() && (t_ip.weight() < (*it).weight()))

{

bans.erase(it);

bans.insert(t_ip);

}

else

{

bans.insert(t_ip);

}

{

ip_representation t_ip(ip);

set<ip_representation>::iterator it = allowances.find(t_ip);

if (it != allowances.end() && (t_ip.weight() < (*it).weight()))

{

allowances.erase(it);

allowances.insert(t_ip);

}

else

{

allowances.insert(t_ip);

}

{

// Parameter needed to respect MHD interface, but not needed here.

std::ignore = addrlen;

if (!(static_cast<webserver *>(cls))->ban_system_enabled)

return MHD_YES;

if ((((static_cast<webserver *>(cls))->default_policy == http_utils::ACCEPT) &&

((static_cast<webserver *>(cls))->bans.count(ip_representation(addr))) &&

(!(static_cast<webserver *>(cls))->allowances.count(ip_representation(addr)))) ||

(((static_cast<webserver *>(cls))->default_policy == http_utils::REJECT) &&

((!(static_cast<webserver *>(cls))->allowances.count(ip_representation(addr))) ||

((static_cast<webserver *>(cls))->bans.count(ip_representation(addr))))))

{

return MHD_NO;

}

return MHD_YES;

{

webserver *dws = static_cast<webserver *>(cls);

std::string msg;

msg.resize(80); // Asssume one line will be enought most of the time.

va_list va;

va_copy(va, ap); // Stash a copy in case we need to try again.

size_t r = vsnprintf(&*msg.begin(), msg.size(), fmt, ap);

va_end(ap);

if (msg.size() < r)

{

msg.resize(r);

r = vsnprintf(&*msg.begin(), msg.size(), fmt, va);

}

va_end(va);

msg.resize(r);

if (dws->log_error != nullptr)

dws->log_error(msg);

{

if (dws->log_access != nullptr)

dws->log_access(uri);

{

// Parameter needed to respect MHD interface, but not needed here.

std::ignore = cls;

std::ignore = c;

// THIS IS USED TO AVOID AN UNESCAPING OF URL BEFORE THE ANSWER.

// IT IS DUE TO A BOGUS ON libmicrohttpd (V0.99) THAT PRODUCING A

// STRING CONTAINING '\0' AFTER AN UNESCAPING, IS UNABLE TO PARSE

// ARGS WITH get_connection_values FUNC OR lookup FUNC.

return std::string(s).size();

const char *key, const char *filename, const char *content_type,

const char *transfer_encoding, const char *data, uint64_t off, size_t size)

{

// Parameter needed to respect MHD interface, but not needed here.

std::ignore = kind;

struct details::modded_request *mr = (struct details::modded_request *)cls;

if (!filename)

{

// There is no actual file, just set the arg key/value and return.

if (off > 0)

{

mr->dhr->grow_last_arg(key, std::string(data, size));

return MHD_YES;

}

mr->dhr->set_arg(key, std::string(data, size));

return MHD_YES;

}

try

{

if (mr->ws->file_upload_target != FILE_UPLOAD_DISK_ONLY)

{

mr->dhr->set_arg_flat(key, std::string(mr->dhr->get_arg(key)) + std::string(data, size));

}

if (*filename != '\0' && mr->ws->file_upload_target != FILE_UPLOAD_MEMORY_ONLY)

{

// either get the existing file info struct or create a new one in the file map

http::file_info &file = mr->dhr->get_or_create_file_info(key, filename);

// if the file_system_file_name is not filled yet, this is a new entry and the name has to be set

// (either random or copy of the original filename)

if (file.get_file_system_file_name().empty())

{

if (mr->ws->generate_random_filename_on_upload)

{

file.set_file_system_file_name(http_utils::generate_random_upload_filename(mr->ws->file_upload_dir));

}

else

{

file.set_file_system_file_name(mr->ws->file_upload_dir + "/" + std::string(filename));

}

// to not append to an already existing file, delete an already existing file

unlink(file.get_file_system_file_name().c_str());

if (content_type != nullptr)

{

file.set_content_type(content_type);

}

if (transfer_encoding != nullptr)

{

file.set_transfer_encoding(transfer_encoding);

}

}

// if multiple files are uploaded, a different filename or a different key indicates

// the start of a new file, so close the previous one

if (mr->upload_filename.empty() ||

mr->upload_key.empty() ||

0 != strcmp(filename, mr->upload_filename.c_str()) ||

0 != strcmp(key, mr->upload_key.c_str()))

{

if (mr->upload_ostrm != nullptr)

{

mr->upload_ostrm->close();

}

}

if (mr->upload_ostrm == nullptr || !mr->upload_ostrm->is_open())

{

mr->upload_key = key;

mr->upload_filename = filename;

mr->upload_ostrm = std::make_unique<std::ofstream>();

mr->upload_ostrm->open(file.get_file_system_file_name(), std::ios::binary | std::ios::app);

}

if (size > 0)

{

mr->upload_ostrm->write(data, size);

}

// update the file size in the map

file.grow_file_size(size);

}

return MHD_YES;

}

catch (const http::generateFilenameException &e)

{

return MHD_NO;

}

{

std::ignore = cls;

std::ignore = connection;

std::ignore = con_cls;

std::ignore = upgrade_socket;

{

if (not_found_resource != nullptr)

{

return not_found_resource(*mr->dhr);

}

else

{

return std::make_shared<string_response>(NOT_FOUND_ERROR, http_utils::http_not_found);

}

{

if (method_not_allowed_resource != nullptr)

{

return method_not_allowed_resource(*mr->dhr);

}

else

{

return std::make_shared<string_response>(METHOD_ERROR, http_utils::http_method_not_allowed);

}

{

if (internal_error_resource != nullptr && !force_our)

{

return internal_error_resource(*mr->dhr);

}

else

{

return std::make_shared<string_response>(GENERIC_ERROR, http_utils::http_internal_server_error);

}

{

mr->dhr.reset(new http_request(connection, unescaper));

if (!mr->has_body)

{

return MHD_YES;

}

mr->dhr->set_content_size_limit(content_size_limit);

const char *encoding = MHD_lookup_connection_value(connection, MHD_HEADER_KIND, http_utils::http_header_content_type);

if (post_process_enabled &&

(nullptr != encoding &&

((0 == strncasecmp(http_utils::http_post_encoding_form_urlencoded, encoding, strlen(http_utils::http_post_encoding_form_urlencoded))) ||

(0 == strncasecmp(http_utils::http_post_encoding_multipart_formdata, encoding, strlen(http_utils::http_post_encoding_multipart_formdata))))))

{

const size_t post_memory_limit(32 * 1024); // Same as #MHD_POOL_SIZE_DEFAULT

mr->pp = MHD_create_post_processor(connection, post_memory_limit, &post_iterator, mr);

}

else

{

mr->pp = nullptr;

}

return MHD_YES;

const char *version, const char *upload_data,

size_t *upload_data_size, struct details::modded_request *mr)

{

if (0 == *upload_data_size)

return complete_request(connection, mr, version, method);

if (mr->has_body)

{

#ifdef DEBUG

std::cout << "Writing content: " << std::string(upload_data, *upload_data_size) << std::endl;

#endif // DEBUG

// The post iterator is only created from the libmicrohttpd for content of type

// multipart/form-data and application/x-www-form-urlencoded

// all other content (which is indicated by mr-pp == nullptr)

// has to be put to the content even if put_processed_data_to_content is set to false

if (mr->pp == nullptr || put_processed_data_to_content)

{

mr->dhr->grow_content(upload_data, *upload_data_size);

}

if (mr->pp != nullptr)

{

mr->ws = this;

MHD_post_process(mr->pp, upload_data, *upload_data_size);

if (mr->upload_ostrm != nullptr && mr->upload_ostrm->is_open())

{

mr->upload_ostrm->close();

}

}

}

*upload_data_size = 0;

return MHD_YES;

{

int to_ret = MHD_NO;

map<string, http_resource *>::iterator fe;

http_resource *hrm;

bool found = false;

struct MHD_Response *raw_response;

if (!single_resource)

{

const char *st_url = mr->standardized_url->c_str();

fe = registered_resources_str.find(st_url);

if (fe == registered_resources_str.end())

{

if (regex_checking)

{

map<details::http_endpoint, http_resource *>::iterator found_endpoint;

details::http_endpoint endpoint(st_url, false, false, false);

map<details::http_endpoint, http_resource *>::iterator it;

size_t len = 0;

size_t tot_len = 0;

for (it = registered_resources.begin(); it != registered_resources.end(); ++it)

{

size_t endpoint_pieces_len = (*it).first.get_url_pieces().size();

size_t endpoint_tot_len = (*it).first.get_url_complete().size();

if (!found || endpoint_pieces_len > len || (endpoint_pieces_len == len && endpoint_tot_len > tot_len))

{

if ((*it).first.match(endpoint))

{

found = true;

len = endpoint_pieces_len;

tot_len = endpoint_tot_len;

found_endpoint = it;

}

}

}

if (found)

{

vector<string> url_pars = found_endpoint->first.get_url_pars();

vector<string> url_pieces = endpoint.get_url_pieces();

vector<int> chunks = found_endpoint->first.get_chunk_positions();

for (unsigned int i = 0; i < url_pars.size(); i++)

{

mr->dhr->set_arg(url_pars[i], url_pieces[chunks[i]]);

}

hrm = found_endpoint->second;

}

}

}

else

{

hrm = fe->second;

found = true;

}

}

else

{

hrm = registered_resources.begin()->second;

found = true;

}

if (found)

{

try

{

if (hrm->is_allowed(method))

{

mr->dhrs = ((hrm)->*(mr->callback))(*mr->dhr); // copy in memory (move in case)

if (mr->dhrs.get() == nullptr || mr->dhrs->get_response_code() == -1)

{

mr->dhrs = internal_error_page(mr);

}

}

else

{

mr->dhrs = method_not_allowed_page(mr);

vector<string> allowed_methods = hrm->get_allowed_methods();

if (allowed_methods.size() > 0)

{

string header_value = allowed_methods[0];

for (auto it = allowed_methods.cbegin() + 1; it != allowed_methods.cend(); ++it)

{

header_value += ", " + (*it);

}

mr->dhrs->with_header(http_utils::http_header_allow, header_value);

}

}

}

catch (const std::exception &e)

{

mr->dhrs = internal_error_page(mr);

}

catch (...)

{

mr->dhrs = internal_error_page(mr);

}

}

else

{

mr->dhrs = not_found_page(mr);

}

try

{

try

{

raw_response = mr->dhrs->get_raw_response();

if (raw_response == nullptr)

{

mr->dhrs = internal_error_page(mr);

raw_response = mr->dhrs->get_raw_response();

}

}

catch (const std::invalid_argument &iae)

{

mr->dhrs = not_found_page(mr);

raw_response = mr->dhrs->get_raw_response();

}

catch (const std::exception &e)

{

mr->dhrs = internal_error_page(mr);

raw_response = mr->dhrs->get_raw_response();

}

catch (...)

{

mr->dhrs = internal_error_page(mr);

raw_response = mr->dhrs->get_raw_response();

}

}

catch (...)

{ // catches errors in internal error page

mr->dhrs = internal_error_page(mr, true);

raw_response = mr->dhrs->get_raw_response();

}

mr->dhrs->decorate_response(raw_response);

to_ret = mr->dhrs->enqueue_response(connection, raw_response);

MHD_destroy_response(raw_response);

return (MHD_Result)to_ret;

{

mr->ws = this;

mr->dhr->set_path(mr->standardized_url->c_str());

mr->dhr->set_method(method);

mr->dhr->set_version(version);

return finalize_answer(connection, mr, method);

const char *version, const char *upload_data, size_t *upload_data_size, void **con_cls)

{

struct details::modded_request *mr = static_cast<struct details::modded_request *>(*con_cls);

if (mr->dhr)

{

return static_cast<webserver *>(cls)->requests_answer_second_step(connection, method, version, upload_data, upload_data_size, mr);

}

const MHD_ConnectionInfo *conninfo = MHD_get_connection_info(connection, MHD_CONNECTION_INFO_CONNECTION_FD);

if (static_cast<webserver *>(cls)->tcp_nodelay)

{

int yes = 1;

setsockopt(conninfo->connect_fd, IPPROTO_TCP, TCP_NODELAY, reinterpret_cast<char *>(&yes), sizeof(int));

}

std::string t_url = url;

base_unescaper(&t_url, static_cast<webserver *>(cls)->unescaper);

mr->standardized_url = std::make_unique<std::string>(http_utils::standardize_url(t_url));

mr->has_body = false;

access_log(static_cast<webserver *>(cls), *(mr->complete_uri) + " METHOD: " + method);

if (0 == strcasecmp(method, http_utils::http_method_get))

{

mr->callback = &http_resource::render_GET;

}

else if (0 == strcmp(method, http_utils::http_method_post))

{

mr->callback = &http_resource::render_POST;

mr->has_body = true;

}

else if (0 == strcasecmp(method, http_utils::http_method_put))

{

mr->callback = &http_resource::render_PUT;

mr->has_body = true;

}

else if (0 == strcasecmp(method, http_utils::http_method_delete))

{

mr->callback = &http_resource::render_DELETE;

mr->has_body = true;

}

else if (0 == strcasecmp(method, http_utils::http_method_patch))

{

mr->callback = &http_resource::render_PATCH;

mr->has_body = true;

}

else if (0 == strcasecmp(method, http_utils::http_method_head))

{

mr->callback = &http_resource::render_HEAD;

}

else if (0 == strcasecmp(method, http_utils::http_method_connect))

{

mr->callback = &http_resource::render_CONNECT;

}

else if (0 == strcasecmp(method, http_utils::http_method_trace))

{

mr->callback = &http_resource::render_TRACE;

}

else if (0 == strcasecmp(method, http_utils::http_method_options))

{

mr->callback = &http_resource::render_OPTIONS;

}

return static_cast<webserver *>(cls)->requests_answer_first_step(connection, mr);