--- /dev/null
+/*
+ * Copyright (c) 2004-2005 Sergey Lyubka <valenok@gmail.com>
+ * All rights reserved
+ *
+ * "THE BEER-WARE LICENSE" (Revision 42):
+ * Sergey Lyubka wrote this file. As long as you retain this notice you
+ * can do whatever you want with this stuff. If we meet some day, and you think
+ * this stuff is worth it, you can buy me a beer in return.
+ */
+
+#include "defs.h"
+
+/*
+ * Configuration parameters setters
+ */
+static void
+set_int(struct shttpd_ctx *ctx, void *ptr, const char *string)
+{
+ ctx = NULL; /* Unused */
+ * (int *) ptr = atoi(string);
+}
+
+static void
+set_str(struct shttpd_ctx *ctx, void *ptr, const char *string)
+{
+ ctx = NULL; /* Unused */
+ * (char **) ptr = my_strdup(string);
+}
+
+static void
+set_log_file(struct shttpd_ctx *ctx, void *ptr, const char *string)
+{
+ FILE **fp = ptr;
+ ctx = NULL;
+
+ if ((*fp = fopen(string, "a")) == NULL)
+ elog(E_FATAL, NULL, "cannot open log file %s: %s",
+ string, strerror(errno));
+}
+
+#ifndef NO_SSL
+/*
+ * Dynamically load SSL library. Set up ctx->ssl_ctx pointer.
+ */
+static void
+set_ssl(struct shttpd_ctx *ctx, void *arg, const char *pem)
+{
+ SSL_CTX *CTX;
+ void *lib;
+ struct ssl_func *fp;
+
+ arg = NULL; /* Unused */
+
+ /* Load SSL library dynamically */
+ if ((lib = dlopen(SSL_LIB, RTLD_LAZY)) == NULL)
+ elog(E_FATAL, NULL, "set_ssl: cannot load %s", SSL_LIB);
+
+ for (fp = ssl_sw; fp->name != NULL; fp++)
+ if ((fp->ptr.v_void = dlsym(lib, fp->name)) == NULL)
+ elog(E_FATAL, NULL,"set_ssl: cannot find %s", fp->name);
+
+ /* Initialize SSL crap */
+ SSL_library_init();
+
+ if ((CTX = SSL_CTX_new(SSLv23_server_method())) == NULL)
+ elog(E_FATAL, NULL, "SSL_CTX_new error");
+ else if (SSL_CTX_use_certificate_file(CTX, pem, SSL_FILETYPE_PEM) == 0)
+ elog(E_FATAL, NULL, "cannot open %s", pem);
+ else if (SSL_CTX_use_PrivateKey_file(CTX, pem, SSL_FILETYPE_PEM) == 0)
+ elog(E_FATAL, NULL, "cannot open %s", pem);
+ ctx->ssl_ctx = CTX;
+}
+#endif /* NO_SSL */
+
+static void
+set_mime(struct shttpd_ctx *ctx, void *arg, const char *string)
+{
+ arg = NULL;
+ set_mime_types(ctx, string);
+}
+
+#define OFS(x) offsetof(struct shttpd_ctx, x)
+#define BOOL_OPT "0|1"
+const struct opt options[] = {
+ {'d', "document_root", "Web root directory", set_str,
+ OFS(document_root), "directory", NULL, OPT_DIR},
+ {'i', "index_files", "Index files", set_str, OFS(index_files),
+ "file_list", INDEX_FILES, OPT_ADVANCED},
+ {'p', "listen_ports", "Listening ports", set_str,
+ OFS(ports), "ports", LISTENING_PORTS, OPT_ADVANCED},
+ {'D', "list_directories", "Directory listing", set_int,
+ OFS(dirlist), BOOL_OPT, "1", OPT_BOOL | OPT_ADVANCED},
+#ifndef NO_CGI
+ {'c', "cgi_extensions", "CGI extensions", set_str,
+ OFS(cgi_extensions), "ext_list", CGI_EXT, OPT_ADVANCED},
+ {'C', "cgi_interpreter", "CGI interpreter", set_str,
+ OFS(cgi_interpreter), "file", NULL, OPT_FILE | OPT_ADVANCED},
+ {'V', "cgi_envvar", "CGI envir variables", set_str,
+ OFS(cgi_vars), "X=Y,....", NULL, OPT_ADVANCED},
+#endif /* NO_CGI */
+#if !defined(NO_SSI)
+ {'S', "ssi_extensions", "SSI extensions", set_str,
+ OFS(ssi_extensions), "ext_list", SSI_EXT, OPT_ADVANCED},
+#endif /* NO_SSI */
+ {'N', "auth_realm", "Authentication realm", set_str,
+ OFS(auth_realm), "auth_realm", REALM, OPT_ADVANCED},
+ {'l', "access_log", "Access log file", set_log_file,
+ OFS(access_log), "file", NULL, OPT_FILE | OPT_ADVANCED},
+ {'e', "error_log", "Error log file", set_log_file,
+ OFS(error_log), "file", NULL, OPT_FILE | OPT_ADVANCED},
+ {'m', "mime_types", "Mime types file", set_mime,
+ OFS(mime_file), "file", NULL, OPT_FILE | OPT_ADVANCED},
+ {'P', "global_htpasswd", "Global passwords file", set_str,
+ OFS(global_passwd_file), "file", NULL, OPT_FILE | OPT_ADVANCED},
+#ifndef NO_SSL
+ {'s', "ssl_certificate", "SSL certificate file", set_ssl,
+ OFS(ssl_ctx), "pem_file", NULL, OPT_FILE | OPT_ADVANCED},
+#endif /* NO_SSL */
+ {'U', "put_auth", "PUT,DELETE auth file",set_str,
+ OFS(put_auth_file), "file", NULL, OPT_FILE | OPT_ADVANCED},
+ {'a', "aliases", "Aliases", set_str,
+ OFS(aliases), "X=Y,...", NULL, OPT_ADVANCED},
+ {'b', "io_buf_size", "IO buffer size", set_int, OFS(io_buf_size),
+ "bytes", DFLT_IO_SIZ, OPT_INT | OPT_ADVANCED},
+#ifdef _WIN32
+ {'B', "auto_start", "Autostart with Windows", set_int,
+ OFS(auto_start), BOOL_OPT, "1", OPT_BOOL},
+#else
+ {'I', "inetd_mode", "Inetd mode", set_int,
+ OFS(inetd_mode), BOOL_OPT, NULL, OPT_BOOL },
+ {'u', "runtime_uid", "Run as user", set_str,
+ OFS(uid), "user_name", NULL, 0 },
+#endif /* _WIN32 */
+ {0, NULL, NULL, NULL, 0, NULL, NULL, 0 }
+};
+
+static const struct opt *
+find_option(int sw, const char *name)
+{
+ const struct opt *opt;
+
+ for (opt = options; opt->sw != 0; opt++)
+ if (sw == opt->sw || (name && strcmp(opt->name, name) == 0))
+ return (opt);
+
+ return (NULL);
+}
+
+static void
+set_option(const struct opt *opt, const char *val, char **tmpvars)
+{
+ tmpvars += opt - options;
+
+ if (*tmpvars != NULL)
+ free(*tmpvars);
+
+ *tmpvars = my_strdup(val);
+}
+
+/*
+ * Initialize shttpd context
+ */
+static void
+initialize_context(struct shttpd_ctx *ctx, const char *config_file,
+ int argc, char *argv[], char **tmpvars)
+{
+ char line[FILENAME_MAX], root[FILENAME_MAX],
+ var[sizeof(line)], val[sizeof(line)];
+ const char *arg;
+ size_t i;
+ const struct opt *opt;
+ FILE *fp;
+ struct tm *tm;
+
+ current_time = time(NULL);
+ tm = localtime(¤t_time);
+ tz_offset = 0;
+#if 0
+ tm->tm_gmtoff - 3600 * (tm->tm_isdst > 0 ? 1 : 0);
+#endif
+
+ (void) memset(ctx, 0, sizeof(*ctx));
+
+ ctx->start_time = current_time;
+ InitializeCriticalSection(&ctx->mutex);
+
+ LL_INIT(&ctx->connections);
+ LL_INIT(&ctx->mime_types);
+ LL_INIT(&ctx->registered_uris);
+ LL_INIT(&ctx->uri_auths);
+ LL_INIT(&ctx->error_handlers);
+
+#if !defined(NO_SSI)
+ LL_INIT(&ctx->ssi_funcs);
+#endif /* NO_SSI */
+
+ /* First pass: set the defaults */
+ for (opt = options; opt->sw != 0; opt++)
+ if (tmpvars[opt - options] == NULL && opt->def != NULL)
+ tmpvars[opt - options] = my_strdup(opt->def);
+
+ /* Second pass: load config file */
+ if (config_file != NULL && (fp = fopen(config_file, "r")) != NULL) {
+ DBG(("init_ctx: config file %s", config_file));
+
+ /* Loop through the lines in config file */
+ while (fgets(line, sizeof(line), fp) != NULL) {
+
+ /* Skip comments and empty lines */
+ if (line[0] == '#' || line[0] == '\n')
+ continue;
+
+ /* Trim trailing newline character */
+ line[strlen(line) - 1] = '\0';
+
+ if (sscanf(line, "%s %[^#\n]", var, val) != 2)
+ elog(E_FATAL,0,"init_ctx: bad line: [%s]",line);
+
+ if ((opt = find_option(0, var)) == NULL)
+ elog(E_FATAL, NULL,
+ "set_option: unknown variable [%s]", var);
+ set_option(opt, val, tmpvars);
+ }
+ (void) fclose(fp);
+ }
+
+ /* Third pass: process command line args */
+ for (i = 1; i < (size_t) argc && argv[i][0] == '-'; i++)
+ if ((opt = find_option(argv[i][1], NULL)) != NULL) {
+ arg = argv[i][2] ? &argv[i][2] : argv[++i];
+
+ if (arg == NULL)
+ usage(argv[0]);
+
+ set_option(opt, arg, tmpvars);
+ } else {
+ usage(argv[0]);
+ }
+
+ /* Call setters functions now */
+ for (i = 0; i < NELEMS(options); i++)
+ if (tmpvars[i] != NULL) {
+ options[i].setter(ctx,
+ ((char *) ctx) + options[i].ofs, tmpvars[i]);
+ free(tmpvars[i]);
+ }
+
+ /* If document_root is not set, set it to current directory */
+ if (ctx->document_root == NULL) {
+ (void) my_getcwd(root, sizeof(root));
+ ctx->document_root = my_strdup(root);
+ }
+
+#ifdef _WIN32
+ {WSADATA data; WSAStartup(MAKEWORD(2,2), &data);}
+#endif /* _WIN32 */
+
+ DBG(("init_ctx: initialized context %p", (void *) ctx));
+}
+
+/*
+ * Show usage string and exit.
+ */
+void
+usage(const char *prog)
+{
+ const struct opt *opt;
+
+ (void) fprintf(stderr,
+ "SHTTPD version %s (c) Sergey Lyubka\n"
+ "usage: %s [OPTIONS] [config_file]\n"
+ "Note: config line keyword for every option is in the "
+ "round brackets\n", VERSION, prog);
+
+#if !defined(NO_AUTH)
+ (void) fprintf(stderr, "-A <htpasswd_file> <realm> <user> <passwd>\n");
+#endif /* NO_AUTH */
+
+ for (opt = options; opt->name != NULL; opt++)
+ (void) fprintf(stderr, "-%c <%s>\t\t%s (%s)\n",
+ opt->sw, opt->arg, opt->desc, opt->name);
+
+ exit(EXIT_FAILURE);
+}
+
+struct shttpd_ctx *
+init_from_argc_argv(const char *config_file, int argc, char *argv[])
+{
+ struct shttpd_ctx *ctx;
+ char *tmpvars[NELEMS(options)];
+ size_t i;
+
+ /* Initialize all temporary holders to NULL */
+ for (i = 0; i < NELEMS(tmpvars); i++)
+ tmpvars[i] = NULL;
+
+ if ((ctx = malloc(sizeof(*ctx))) != NULL)
+ initialize_context(ctx, config_file, argc, argv, tmpvars);
+
+ return (ctx);
+}
+
+struct shttpd_ctx *
+shttpd_init(const char *config_file, ...)
+{
+ struct shttpd_ctx *ctx;
+ va_list ap;
+ const char *opt_name, *opt_value;
+ char *tmpvars[NELEMS(options)];
+ const struct opt *opt;
+ size_t i;
+
+ /* Initialize all temporary holders to NULL */
+ for (i = 0; i < NELEMS(tmpvars); i++)
+ tmpvars[i] = NULL;
+
+ if ((ctx = malloc(sizeof(*ctx))) != NULL) {
+
+ va_start(ap, config_file);
+ while ((opt_name = va_arg(ap, const char *)) != NULL) {
+ opt_value = va_arg(ap, const char *);
+
+ if ((opt = find_option(0, opt_name)) == NULL)
+ elog(E_FATAL, NULL, "shttpd_init: "
+ "unknown variable [%s]", opt_name);
+ set_option(opt, opt_value, tmpvars);
+ }
+ va_end(ap);
+
+ initialize_context(ctx, config_file, 0, NULL, tmpvars);
+ }
+
+ return (ctx);
+}
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