308 lines
9.1 KiB
C++
308 lines
9.1 KiB
C++
/*
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* nghttp2 - HTTP/2 C Library
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*
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* Copyright (c) 2012 Tatsuhiro Tsujikawa
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "nghttp2_config.h"
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#include <unistd.h>
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#include <signal.h>
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#include <getopt.h>
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#include <cstdlib>
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#include <cstring>
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#include <cassert>
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#include <string>
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#include <iostream>
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#include <string>
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#include <openssl/ssl.h>
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#include <openssl/err.h>
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#include <openssl/conf.h>
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#include <nghttp2/nghttp2.h>
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#include "app_helper.h"
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#include "HttpServer.h"
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#include "util.h"
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#include "ssl.h"
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namespace nghttp2 {
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namespace {
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int parse_push_config(Config &config, const char *optarg) {
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const char *eq = strchr(optarg, '=');
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if (eq == NULL) {
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return -1;
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}
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auto paths = std::vector<std::string>();
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auto optarg_end = optarg + strlen(optarg);
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const char *i = eq + 1;
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for (;;) {
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const char *j = strchr(i, ',');
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if (j == NULL) {
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j = optarg_end;
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}
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paths.emplace_back(i, j);
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if (j == optarg_end) {
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break;
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}
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i = j;
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++i;
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}
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config.push[std::string(optarg, eq)] = std::move(paths);
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return 0;
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}
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} // namespace
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namespace {
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void print_version(std::ostream &out) {
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out << "nghttpd nghttp2/" NGHTTP2_VERSION << std::endl;
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}
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} // namespace
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namespace {
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void print_usage(std::ostream &out) {
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out << "Usage: nghttpd [OPTION]... <PORT> [<PRIVATE_KEY> <CERT>]\n"
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<< "HTTP/2 experimental server" << std::endl;
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}
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} // namespace
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namespace {
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void print_help(std::ostream &out) {
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print_usage(out);
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out << R"(
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<PORT> Specify listening port number.
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<PRIVATE_KEY>
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Set path to server's private key. Required unless
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--no-tls is specified.
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<CERT> Set path to server's certificate. Required unless
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--no-tls is specified.
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Options:
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-D, --daemon
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Run in a background. If -D is used, the current working
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directory is changed to '/'. Therefore if this option
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is used, -d option must be specified.
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-V, --verify-client
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The server sends a client certificate request. If the
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client did not return a certificate, the handshake is
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terminated. Currently, this option just requests a
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client certificate and does not verify it.
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-d, --htdocs=<PATH>
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Specify document root. If this option is not specified,
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the document root is the current working directory.
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-v, --verbose
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Print debug information such as reception/ transmission
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of frames and name/value pairs.
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--no-tls Disable SSL/TLS.
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-c, --header-table-size=<SIZE>
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Specify decoder header table size.
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--color Force colored log output.
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-p, --push=<PATH>=<PUSH_PATH,...>
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Push resources <PUSH_PATH>s when <PATH> is requested.
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This option can be used repeatedly to specify multiple
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push configurations. <PATH> and <PUSH_PATH>s are
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relative to document root. See --htdocs option.
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Example: -p/=/foo.png -p/doc=/bar.css
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-b, --padding=<N>
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Add at most <N> bytes to a frame payload as padding.
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Specify 0 to disable padding.
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-n, --workers=<N>
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Set the number of worker threads.
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Default: 1
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-e, --error-gzip
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Make error response gzipped.
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--dh-param-file=<PATH>
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Path to file that contains DH parameters in PEM format.
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Without this option, DHE cipher suites are not
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available.
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--early-response
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Start sending response when request HEADERS is received,
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rather than complete request is received.
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--version Display version information and exit.
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-h, --help Display this help and exit.
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The <SIZE> argument is an integer and an optional unit (e.g., 10K is
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10 * 1024). Units are K, M and G (powers of 1024).)" << std::endl;
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}
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} // namespace
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int main(int argc, char **argv) {
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Config config;
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bool color = false;
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while (1) {
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static int flag = 0;
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static option long_options[] = {
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{"daemon", no_argument, nullptr, 'D'},
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{"htdocs", required_argument, nullptr, 'd'},
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{"help", no_argument, nullptr, 'h'},
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{"verbose", no_argument, nullptr, 'v'},
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{"verify-client", no_argument, nullptr, 'V'},
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{"header-table-size", required_argument, nullptr, 'c'},
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{"push", required_argument, nullptr, 'p'},
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{"padding", required_argument, nullptr, 'b'},
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{"workers", required_argument, nullptr, 'n'},
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{"error-gzip", no_argument, nullptr, 'e'},
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{"no-tls", no_argument, &flag, 1},
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{"color", no_argument, &flag, 2},
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{"version", no_argument, &flag, 3},
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{"dh-param-file", required_argument, &flag, 4},
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{"early-response", no_argument, &flag, 5},
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{nullptr, 0, nullptr, 0}};
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int option_index = 0;
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int c =
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getopt_long(argc, argv, "DVb:c:d:ehn:p:v", long_options, &option_index);
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char *end;
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if (c == -1) {
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break;
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}
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switch (c) {
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case 'D':
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config.daemon = true;
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break;
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case 'V':
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config.verify_client = true;
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break;
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case 'b':
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config.padding = strtol(optarg, nullptr, 10);
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break;
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case 'd':
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config.htdocs = optarg;
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break;
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case 'e':
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config.error_gzip = true;
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break;
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case 'n':
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#ifdef NOTHREADS
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std::cerr << "-n: WARNING: Threading disabled at build time, "
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<< "no threads created." << std::endl;
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#else
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errno = 0;
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config.num_worker = strtoul(optarg, &end, 10);
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if (errno == ERANGE || *end != '\0' || config.num_worker == 0) {
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std::cerr << "-n: Bad option value: " << optarg << std::endl;
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exit(EXIT_FAILURE);
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}
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#endif // NOTHREADS
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break;
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case 'h':
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print_help(std::cout);
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exit(EXIT_SUCCESS);
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case 'v':
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config.verbose = true;
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break;
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case 'c':
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errno = 0;
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config.header_table_size = util::parse_uint_with_unit(optarg);
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if (config.header_table_size == -1) {
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std::cerr << "-c: Bad option value: " << optarg << std::endl;
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exit(EXIT_FAILURE);
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}
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break;
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case 'p':
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if (parse_push_config(config, optarg) != 0) {
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std::cerr << "-p: Bad option value: " << optarg << std::endl;
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}
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break;
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case '?':
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util::show_candidates(argv[optind - 1], long_options);
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exit(EXIT_FAILURE);
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case 0:
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switch (flag) {
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case 1:
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// no-tls option
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config.no_tls = true;
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break;
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case 2:
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// color option
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color = true;
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break;
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case 3:
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// version
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print_version(std::cout);
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exit(EXIT_SUCCESS);
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case 4:
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// dh-param-file
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config.dh_param_file = optarg;
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break;
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case 5:
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// early-response
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config.early_response = true;
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break;
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}
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break;
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default:
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break;
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}
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}
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if (argc - optind < (config.no_tls ? 1 : 3)) {
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print_usage(std::cerr);
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std::cerr << "Too few arguments" << std::endl;
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exit(EXIT_FAILURE);
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}
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config.port = strtol(argv[optind++], nullptr, 10);
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if (!config.no_tls) {
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config.private_key_file = argv[optind++];
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config.cert_file = argv[optind++];
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}
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if (config.daemon) {
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if (config.htdocs.empty()) {
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print_usage(std::cerr);
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std::cerr << "-d option must be specified when -D is used." << std::endl;
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exit(EXIT_FAILURE);
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}
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if (daemon(0, 0) == -1) {
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perror("daemon");
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exit(EXIT_FAILURE);
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}
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}
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if (config.htdocs.empty()) {
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config.htdocs = "./";
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}
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set_color_output(color || isatty(fileno(stdout)));
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struct sigaction act;
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memset(&act, 0, sizeof(struct sigaction));
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act.sa_handler = SIG_IGN;
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sigaction(SIGPIPE, &act, nullptr);
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OPENSSL_config(nullptr);
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OpenSSL_add_all_algorithms();
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SSL_load_error_strings();
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SSL_library_init();
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#ifndef NOTHREADS
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ssl::LibsslGlobalLock lock;
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#endif // NOTHREADS
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reset_timer();
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HttpServer server(&config);
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server.run();
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return 0;
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}
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} // namespace nghttp2
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int main(int argc, char **argv) { return nghttp2::main(argc, argv); }
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