Add TUX SAPI module

1 files changed, 431 insertions, 0 deletions

diff --git a/sapi/tux/php_tux.c b/sapi/tux/php_tux.c
new file mode 100644
index 0000000000..d083a1c3de
--- /dev/null
+++ b/sapi/tux/php_tux.c
@@ -0,0 +1,431 @@
+/*
+   +----------------------------------------------------------------------+
+   | PHP version 4.0                                                      |
+   +----------------------------------------------------------------------+
+   | Copyright (c) 1997-2001 The PHP Group                                |
+   +----------------------------------------------------------------------+
+   | This source file is subject to version 2.02 of the PHP license,      |
+   | that is bundled with this package in the file LICENSE, and is        |
+   | available at through the world-wide-web at                           |
+   | http://www.php.net/license/2_02.txt.                                 |
+   | If you did not receive a copy of the PHP license and are unable to   |
+   | obtain it through the world-wide-web, please send a note to          |
+   | license@php.net so we can mail you a copy immediately.               |
+   +----------------------------------------------------------------------+
+   | Author: Sascha Schumann <sascha@schumann.cx>                         |
+   +----------------------------------------------------------------------+
+*/
+
+#include "php.h"
+#include "SAPI.h"
+#include "php_main.h"
+#include "php_variables.h"
+
+#include "ext/standard/php_smart_str.h"
+
+#include "tuxmodule.h"
+
+#include <sys/uio.h>
+
+#if 0
+#include <pthread.h>
+#endif
+
+void tux_closed_conn(int fd);
+
+enum {
+	PHP_TUX_BACKGROUND_CONN = 1
+};
+
+typedef struct {
+	user_req_t *req;
+	void (*on_close)(int);
+	int tux_action;
+	struct iovec *header_vec;
+	int number_vec;
+} php_tux_globals;
+
+static php_tux_globals tux_globals;
+
+#define TLS_D
+#define TLS_DC
+#define TLS_C
+#define TLS_CC
+#define TG(v) (tux_globals.v)
+#define TLS_FETCH()
+
+static int sapi_tux_ub_write(const char *str, uint str_length)
+{
+	int n;
+	uint sent = 0;	
+	TLS_FETCH();
+	
+	/* combine headers and body */
+	if (TG(number_vec)) {
+		struct iovec *vec = TG(header_vec);
+		
+		n = TG(number_vec);
+		vec[n].iov_base = (void *) str;
+		vec[n++].iov_len = str_length;
+		
+		if (writev(TG(req)->sock, vec, n) == -1 && errno == EPIPE)
+			php_handle_aborted_connection();
+
+		TG(number_vec) = 0;
+		return str_length;
+	}
+	
+	while (str_length > 0) {
+		n = send(TG(req)->sock, str, str_length, 0);
+
+		if (n == -1 && errno == EPIPE)
+			php_handle_aborted_connection();
+		if (n == -1 && errno == EAGAIN)
+			continue;
+		if (n <= 0) 
+			return n;
+
+		TG(req)->bytes_sent += n;
+		str += n;
+		sent += n;
+		str_length -= n;
+	}
+
+	return sent;
+}
+
+static int sapi_tux_send_headers(sapi_headers_struct *sapi_headers SLS_DC)
+{
+	char buf[1024];
+	struct iovec *vec;
+	int n = 0;
+	int max_headers;
+	zend_llist_position pos;
+	sapi_header_struct *h;
+	size_t len;
+	char *status_line;
+	int locate_cl;
+	TLS_FETCH();
+	
+	max_headers = 30;
+	snprintf(buf, 1023, "HTTP/1.1 %d NA\r\n", SG(sapi_headers).http_response_code);
+	
+	vec = malloc(sizeof(struct iovec) * max_headers);
+	
+	vec[n].iov_base = strdup(buf);
+	vec[n++].iov_len = strlen(buf);
+	
+	TG(req)->http_status = SG(sapi_headers).http_response_code;
+	TG(req)->bytes_sent += len;
+
+	if (TG(tux_action) == TUX_ACTION_FINISH_CLOSE_REQ && TG(req)->http_version == HTTP_1_1)
+		locate_cl = 1;
+	else
+		locate_cl = 0;
+	
+	h = zend_llist_get_first_ex(&sapi_headers->headers, &pos);
+	while (h) {
+		if (locate_cl 
+				&& strncasecmp(h->header, "Content-length:", sizeof("Content-length:")-1) == 0) {
+			TG(tux_action) = TUX_ACTION_FINISH_REQ;
+			locate_cl = 0;
+		}
+			
+		vec[n].iov_base = h->header;
+		vec[n++].iov_len = h->header_len;
+		if (n >= max_headers - 3) {
+			max_headers *= 2;
+			vec = realloc(vec, sizeof(struct iovec) * max_headers);
+		}
+		vec[n].iov_base = "\r\n";
+		vec[n++].iov_len = 2;
+		
+		h = zend_llist_get_next_ex(&sapi_headers->headers, &pos);
+	}
+
+	vec[n].iov_base = "\r\n";
+	vec[n++].iov_len = 2;
+
+	TG(number_vec) = n;
+	TG(header_vec) = vec;
+
+	
+	return SAPI_HEADER_SENT_SUCCESSFULLY;
+}
+
+static int sapi_tux_read_post(char *buffer, uint count_bytes SLS_DC)
+{
+#if 0
+	int amount = 0;
+	TLS_FETCH();
+
+	TG(req)->objectlen = count_bytes;
+	TG(req)->object_addr = buffer;
+	if (tux(TUX_ACTION_READ_POST_DATA, TG(req)))
+		return 0;
+
+	TG(read_post_data) = 1;
+	
+	return TG(req)->objectlen;
+#else
+	return 0;
+#endif
+}
+
+static char *sapi_tux_read_cookies(SLS_D)
+{
+	TLS_FETCH();
+	
+	return TG(req)->cookies;
+}
+
+#define BUF_SIZE 512
+#define ADD_STRING(name)										\
+	php_register_variable(name, buf, track_vars_array ELS_CC PLS_CC)
+
+static void sapi_tux_register_variables(zval *track_vars_array ELS_DC SLS_DC PLS_DC)
+{
+	char buf[BUF_SIZE + 1];
+	char *p;
+	TLS_FETCH();
+
+	
+	sprintf(buf, "Server: %s", TUXAPI_version);
+	sapi_add_header_ex(buf, strlen(buf), 1, 0);
+	php_register_variable("PHP_SELF", SG(request_info).request_uri, track_vars_array ELS_CC PLS_CC);
+	php_register_variable("SERVER_SOFTWARE", TUXAPI_version, track_vars_array ELS_CC PLS_CC);
+	php_register_variable("GATEWAY_INTERFACE", "CGI/1.1", track_vars_array ELS_CC PLS_CC);
+	php_register_variable("REQUEST_METHOD", (char *) SG(request_info).request_method, track_vars_array ELS_CC PLS_CC);
+	php_register_variable("DOCUMENT_ROOT", TUXAPI_docroot, track_vars_array ELS_CC PLS_CC);
+	php_register_variable("SERVER_NAME", TUXAPI_servername, track_vars_array ELS_CC PLS_CC);
+	php_register_variable("REQUEST_URI", SG(request_info).request_uri, track_vars_array ELS_CC PLS_CC);
+	php_register_variable("PATH_TRANSLATED", SG(request_info).path_translated, track_vars_array ELS_CC PLS_CC);
+
+	p = inet_ntoa(TG(req)->client_host);
+	/* string representation of IPs are never larger than 512 bytes */
+	if (p) {
+		memcpy(buf, p, strlen(p) + 1);
+		ADD_STRING("REMOTE_ADDR");
+		ADD_STRING("REMOTE_HOST");
+	}
+
+	sprintf(buf, "%d", CGI_SERVER_PORT(TG(req)));
+	ADD_STRING("SERVER_PORT");
+
+#if 0
+	snprintf(buf, BUF_SIZE, "/%s", TG(hc)->pathinfo);
+	ADD_STRING("PATH_INFO");
+
+	snprintf(buf, BUF_SIZE, "/%s", TG(hc)->origfilename);
+	ADD_STRING("SCRIPT_NAME");
+#endif
+
+#define CONDADD(name, field) 							\
+	if (TG(req)->field[0]) {								\
+		php_register_variable(#name, TG(req)->field, track_vars_array ELS_CC PLS_C); \
+	}
+
+	CONDADD(HTTP_REFERER, referer);
+	CONDADD(HTTP_USER_AGENT, user_agent);
+	CONDADD(HTTP_ACCEPT, accept);
+	CONDADD(HTTP_ACCEPT_ENCODING, accept_encoding);
+	CONDADD(HTTP_ACCEPT_LANGUAGE, accept_language);
+	CONDADD(HTTP_COOKIE, cookies);
+	CONDADD(CONTENT_TYPE, content_type);
+
+#if 0
+	if (TG(hc)->contentlength != -1) {
+		sprintf(buf, "%ld", (long) TG(hc)->contentlength);
+		ADD_STRING("CONTENT_LENGTH");
+	}
+#endif
+
+#if 0
+	if (TG(hc)->authorization[0])
+		php_register_variable("AUTH_TYPE", "Basic", track_vars_array ELS_CC PLS_C);
+#endif
+}
+
+static sapi_module_struct tux_sapi_module = {
+	"tux",
+	"tux",
+	
+	php_module_startup,
+	php_module_shutdown_wrapper,
+	
+	NULL,									/* activate */
+	NULL,									/* deactivate */
+
+	sapi_tux_ub_write,
+	NULL,
+	NULL,									/* get uid */
+	NULL,									/* getenv */
+
+	php_error,
+	
+	NULL,
+	sapi_tux_send_headers,
+	NULL,
+	sapi_tux_read_post,
+	sapi_tux_read_cookies,
+
+	sapi_tux_register_variables,
+	NULL,									/* Log message */
+
+	NULL,									/* Block interruptions */
+	NULL,									/* Unblock interruptions */
+
+	STANDARD_SAPI_MODULE_PROPERTIES
+};
+
+static void tux_module_main(TLS_D SLS_DC)
+{
+	zend_file_handle file_handle;
+	CLS_FETCH();
+	ELS_FETCH();
+	PLS_FETCH();
+
+	file_handle.type = ZEND_HANDLE_FILENAME;
+	file_handle.filename = SG(request_info).path_translated;
+	file_handle.free_filename = 0;
+	file_handle.opened_path = NULL;
+
+	if (php_request_startup(CLS_C ELS_CC PLS_CC SLS_CC) == FAILURE) {
+		return;
+	}
+	
+	php_execute_script(&file_handle CLS_CC ELS_CC PLS_CC);
+	php_request_shutdown(NULL);
+}
+
+static void tux_request_ctor(TLS_D SLS_DC)
+{
+	char buf[1024];
+	int offset;
+	size_t filename_len;
+	size_t cwd_len;
+	smart_str s = {0};
+	char *p;
+	
+	TG(header_vec) = NULL;
+	SG(request_info).query_string = strdup(TG(req)->query);
+
+	smart_str_appends_ex(&s, "/", 1);
+	smart_str_appends_ex(&s, TG(req)->query, 1);
+	smart_str_0(&s);
+	p = strchr(s.c, '&');
+	if (p)
+		*p = '\0';
+	SG(request_info).path_translated = s.c;
+	
+	s.c = NULL;
+	smart_str_appendc_ex(&s, '/', 1);
+	smart_str_appends_ex(&s, TG(req)->objectname, 1);
+	smart_str_0(&s);
+	SG(request_info).request_uri = s.c;
+	SG(request_info).request_method = CGI_REQUEST_METHOD(TG(req));
+	SG(sapi_headers).http_response_code = 200;
+	SG(request_info).content_type = TG(req)->content_type;
+	SG(request_info).content_length = 0; // TG(req)->contentlength;
+
+#if 0
+	php_handle_auth_data(TG(hc)->authorization SLS_CC);
+#endif
+}
+
+static void tux_request_dtor(TLS_D SLS_DC)
+{
+	if (TG(header_vec))
+		free(TG(header_vec));
+	if (SG(request_info).query_string)
+		free(SG(request_info).query_string);
+	free(SG(request_info).request_uri);
+	free(SG(request_info).path_translated);
+}
+
+#if 0
+static void *separate_thread(void *bla)
+{
+	int fd;
+	int i = 0;
+	
+	fd = (int) bla;
+
+	while (i++ < 5) {
+		send(fd, "test<br>\n", 9, 0);
+		sleep(1);
+	}
+	
+	tux(TUX_ACTION_CONTINUE_REQ, (user_req_t *) fd);
+	/* We HAVE to trigger some event on the fd. Otherwise
+	   fast_thread won't wake up, so that the eventloop
+	   won't be entered -> TUX hangs */
+	shutdown(fd, 2);
+	pthread_exit(NULL);
+}
+#endif
+
+int TUXAPI_handle_events(user_req_t *req)
+{
+	SLS_FETCH();
+	TLS_FETCH();
+
+	if (req->event == PHP_TUX_BACKGROUND_CONN) {
+		tux_closed_conn(req->sock);
+		return tux(TUX_ACTION_FINISH_CLOSE_REQ, req);
+	}
+	
+	TG(req) = req;
+	TG(tux_action) = TUX_ACTION_FINISH_CLOSE_REQ;
+	
+	tux_request_ctor(TLS_C SLS_CC);
+
+	tux_module_main(TLS_C SLS_CC);
+
+	tux_request_dtor(TLS_C SLS_CC);
+
+	return tux(TG(tux_action), req);
+}
+
+void tux_register_on_close(void (*arg)(int)) 
+{
+	TG(on_close) = arg;
+}
+
+void tux_closed_conn(int fd)
+{
+	TLS_FETCH();
+
+	if (TG(on_close)) TG(on_close)(fd);
+}
+
+int tux_get_fd(void)
+{
+	TLS_FETCH();
+	
+	return TG(req)->sock;
+}
+
+void tux_set_dont_close(void)
+{
+	TLS_FETCH();
+
+	TG(req)->event = PHP_TUX_BACKGROUND_CONN;
+	tux(TUX_ACTION_POSTPONE_REQ, TG(req));
+	TG(tux_action) = TUX_ACTION_EVENTLOOP;
+}
+
+void TUXAPI_init(void)
+{
+	sapi_startup(&tux_sapi_module);
+	tux_sapi_module.startup(&tux_sapi_module);
+	SG(server_context) = (void *) 1;
+}
+
+void doesnotmatter_fini(void)
+{
+	if (SG(server_context) != NULL) {
+		tux_sapi_module.shutdown(&tux_sapi_module);
+		sapi_shutdown();
+	}
+}