use con->conf.server_tag in modules

do not expose server info server_tag is configured by admin

default con->conf.server_tag is still PACKAGE_DESC, those
admin can configure server.tag otherwise.

(these changes reduce recompilation and relinking when switching
 brances in source control)

src/configfile.c

@@ -9,6 +9,7 @@
 #include "configfile.h"
 #include "proc_open.h"
 #include "request.h"
+#include "version.h"
 
 #include <sys/stat.h>
 
@@ -206,7 +207,7 @@ static int config_insert(server *srv) {
 		s->ssl_ca_file   = buffer_init();
 		s->error_handler = buffer_init();
 		s->error_handler_404 = buffer_init();
-		s->server_tag    = buffer_init();
+		s->server_tag    = buffer_init_string(PACKAGE_DESC);
 		s->ssl_cipher_list = buffer_init();
 		s->ssl_dh_file   = buffer_init();
 		s->ssl_ec_curve  = buffer_init();

src/mod_cgi.c

@@ -36,8 +36,6 @@
 #include <stdio.h>
 #include <fcntl.h>
 
-#include "version.h"
-
 enum {EOL_UNSET, EOL_N, EOL_RN};
 
 typedef struct {
@@ -1087,11 +1085,7 @@ static int cgi_create_env(server *srv, connection *con, plugin_data *p, handler_
 		env.size = 0;
 		env.used = 0;
 
-		if (buffer_is_empty(con->conf.server_tag)) {
-			cgi_env_add(&env, CONST_STR_LEN("SERVER_SOFTWARE"), CONST_STR_LEN(PACKAGE_DESC));
-		} else {
-			cgi_env_add(&env, CONST_STR_LEN("SERVER_SOFTWARE"), CONST_BUF_LEN(con->conf.server_tag));
-		}
+		cgi_env_add(&env, CONST_STR_LEN("SERVER_SOFTWARE"), CONST_BUF_LEN(con->conf.server_tag));
 
 		if (!buffer_string_is_empty(con->server_name)) {
 			size_t len = buffer_string_length(con->server_name);

src/mod_dirlisting.c

@@ -33,8 +33,6 @@
 #include <sys/extattr.h>
 #endif
 
-#include "version.h"
-
 /* plugin config for all request/connections */
 
 typedef struct {
@@ -628,8 +626,6 @@ static void http_list_directory_footer(server *srv, connection *con, plugin_data
 
 		if (!buffer_string_is_empty(p->conf.set_footer)) {
 			buffer_append_string_buffer(out, p->conf.set_footer);
-		} else if (buffer_is_empty(con->conf.server_tag)) {
-			buffer_append_string_len(out, CONST_STR_LEN(PACKAGE_DESC));
 		} else {
 			buffer_append_string_buffer(out, con->conf.server_tag);
 		}

src/mod_fastcgi.c

@@ -48,8 +48,6 @@
 #include <sys/wait.h>
 #endif
 
-#include "version.h"
-
 /*
  *
  * TODO:
@@ -1961,12 +1959,7 @@ static int fcgi_create_env(server *srv, handler_ctx *hctx, int request_id) {
 	/* send FCGI_PARAMS */
 	buffer_string_prepare_copy(p->fcgi_env, 1023);
 
-
-	if (buffer_is_empty(con->conf.server_tag)) {
-		FCGI_ENV_ADD_CHECK(fcgi_env_add(p->fcgi_env, CONST_STR_LEN("SERVER_SOFTWARE"), CONST_STR_LEN(PACKAGE_DESC)),con)
-	} else {
-		FCGI_ENV_ADD_CHECK(fcgi_env_add(p->fcgi_env, CONST_STR_LEN("SERVER_SOFTWARE"), CONST_BUF_LEN(con->conf.server_tag)),con)
-	}
+	FCGI_ENV_ADD_CHECK(fcgi_env_add(p->fcgi_env, CONST_STR_LEN("SERVER_SOFTWARE"), CONST_BUF_LEN(con->conf.server_tag)),con)
 
 	if (!buffer_is_empty(con->server_name)) {
 		size_t len = buffer_string_length(con->server_name);

src/mod_scgi.c

@@ -37,8 +37,6 @@
 # include <sys/wait.h>
 #endif
 
-#include "version.h"
-
 enum {EOL_UNSET, EOL_N, EOL_RN};
 
 /*
@@ -1569,12 +1567,7 @@ static int scgi_create_env(server *srv, handler_ctx *hctx) {
 	scgi_env_add(p->scgi_env, CONST_STR_LEN("CONTENT_LENGTH"), buf, strlen(buf));
 	scgi_env_add(p->scgi_env, CONST_STR_LEN("SCGI"), CONST_STR_LEN("1"));
 
-
-	if (buffer_is_empty(con->conf.server_tag)) {
-		scgi_env_add(p->scgi_env, CONST_STR_LEN("SERVER_SOFTWARE"), CONST_STR_LEN(PACKAGE_DESC));
-	} else {
-		scgi_env_add(p->scgi_env, CONST_STR_LEN("SERVER_SOFTWARE"), CONST_BUF_LEN(con->conf.server_tag));
-	}
+	scgi_env_add(p->scgi_env, CONST_STR_LEN("SERVER_SOFTWARE"), CONST_BUF_LEN(con->conf.server_tag));
 
 	if (!buffer_is_empty(con->server_name)) {
 		size_t len = buffer_string_length(con->server_name);

src/mod_ssi.c

@@ -40,7 +40,6 @@
 #endif
 
 #include "etag.h"
-#include "version.h"
 
 /* The newest modified time of included files for include statement */
 static volatile time_t include_file_last_mtime = 0;
@@ -205,7 +204,7 @@ static int build_ssi_cgi_vars(server *srv, connection *con, plugin_data *p) {
 
 	array_reset(p->ssi_cgi_env);
 
-	ssi_env_add(p->ssi_cgi_env, CONST_STRING("SERVER_SOFTWARE"), PACKAGE_DESC);
+	ssi_env_add(p->ssi_cgi_env, CONST_STRING("SERVER_SOFTWARE"), con->conf.server_tag->ptr);
 	ssi_env_add(p->ssi_cgi_env, CONST_STRING("SERVER_NAME"),
 #ifdef HAVE_IPV6
 		     inet_ntop(srv_sock->addr.plain.sa_family,

src/mod_status.c

@@ -20,8 +20,6 @@
 #include <time.h>
 #include <stdio.h>
 
-#include "version.h"
-
 typedef struct {
 	buffer *config_url;
 	buffer *status_url;
@@ -319,7 +317,9 @@ static handler_t mod_status_handle_server_status_html(server *srv, connection *c
 
 
 	/* connection listing */
-	buffer_append_string_len(b, CONST_STR_LEN("<h1>Server-Status (" PACKAGE_NAME " " PACKAGE_VERSION ")</h1>"));
+	buffer_append_string_len(b, CONST_STR_LEN("<h1>Server-Status ("));
+	buffer_append_string_buffer(b, con->conf.server_tag);
+	buffer_append_string_len(b, CONST_STR_LEN(")</h1>"));
 
 	buffer_append_string_len(b, CONST_STR_LEN("<table summary=\"status\" class=\"status\">"));
 	buffer_append_string_len(b, CONST_STR_LEN("<tr><td>Hostname</td><td class=\"string\">"));
@@ -839,7 +839,10 @@ static handler_t mod_status_handle_server_config(server *srv, connection *con, v
 			   "  <title>Status</title>\n"
 			   " </head>\n"
 			   " <body>\n"
-			   "  <h1>" PACKAGE_DESC "</h1>\n"
+			   "  <h1>"));
+	buffer_append_string_buffer(b, con->conf.server_tag);
+	buffer_append_string_len(b, CONST_STR_LEN(
+			   "</h1>\n"
 			   "  <table summary=\"status\" border=\"1\">\n"));
 
 	mod_status_header_append(b, "Server-Features");

src/response.c

@@ -26,7 +26,6 @@
 #include <stdio.h>
 
 #include "sys-socket.h"
-#include "version.h"
 
 int http_response_write_header(server *srv, connection *con) {
 	buffer *b;
@@ -109,9 +108,7 @@ int http_response_write_header(server *srv, connection *con) {
 	}
 
 	if (!have_server) {
-		if (buffer_is_empty(con->conf.server_tag)) {
-			buffer_append_string_len(b, CONST_STR_LEN("\r\nServer: " PACKAGE_DESC));
-		} else if (!buffer_string_is_empty(con->conf.server_tag)) {
+		if (!buffer_string_is_empty(con->conf.server_tag)) {
 			buffer_append_string_len(b, CONST_STR_LEN("\r\nServer: "));
 			buffer_append_string_encoded(b, CONST_BUF_LEN(con->conf.server_tag), ENCODING_HTTP_HEADER);
 		}