1 /*
2  * This file is in the public domain.
3  */
4 
5 #define FD_RESERVE	5
6 #define QUERY_MAXLEN	1025	/* including NUL */
7 
8 struct bufferevent;
9 struct event;
10 struct fcgi;
11 struct sqlite3;
12 struct sqlite3_stmt;
13 struct template;
14 
15 enum {
16 	METHOD_UNKNOWN,
17 	METHOD_GET,
18 	METHOD_POST,
19 };
20 
21 #ifdef DEBUG
22 #define DPRINTF		log_debug
23 #else
24 #define DPRINTF(...)	do {} while (0)
25 #endif
26 
27 struct client {
28 	uint32_t		 clt_id;
29 	int			 clt_fd;
30 	struct fcgi		*clt_fcgi;
31 	char			*clt_server_name;
32 	char			*clt_script_name;
33 	char			*clt_path_info;
34 	char			*clt_query;
35 	int			 clt_method;
36 	char			 clt_buf[1024];
37 	size_t			 clt_buflen;
38 
39 	SPLAY_ENTRY(client)	 clt_nodes;
40 };
41 SPLAY_HEAD(client_tree, client);
42 
43 struct fcgi {
44 	uint32_t		 fcg_id;
45 	int			 fcg_s;
46 	struct client_tree	 fcg_clients;
47 	struct bufferevent	*fcg_bev;
48 	int			 fcg_toread;
49 	int			 fcg_want;
50 	int			 fcg_padding;
51 	int			 fcg_type;
52 	int			 fcg_rec_id;
53 	int			 fcg_keep_conn;
54 	int			 fcg_done;
55 
56 	struct env		*fcg_env;
57 
58 	SPLAY_ENTRY(fcgi)	 fcg_nodes;
59 };
60 SPLAY_HEAD(fcgi_tree, fcgi);
61 
62 struct env {
63 	int			 env_sockfd;
64 	struct event		 env_sockev;
65 	struct event		 env_pausev;
66 	struct fcgi_tree	 env_fcgi_socks;
67 
68 	struct sqlite3		*env_db;
69 	struct sqlite3_stmt	*env_query;
70 };
71 
72 /* fcgi.c */
73 int	fcgi_end_request(struct client *, int);
74 int	fcgi_abort_request(struct client *);
75 void	fcgi_accept(int, short, void *);
76 void	fcgi_read(struct bufferevent *, void *);
77 void	fcgi_write(struct bufferevent *, void *);
78 void	fcgi_error(struct bufferevent *, short, void *);
79 void	fcgi_free(struct fcgi *);
80 int	clt_putc(struct client *, char);
81 int	clt_puts(struct client *, const char *);
82 int	clt_putsan(struct client *, const char *);
83 int	clt_putmatch(struct client *, const char *);
84 int	clt_write_bufferevent(struct client *, struct bufferevent *);
85 int	clt_flush(struct client *);
86 int	clt_write(struct client *, const uint8_t *, size_t);
87 int	clt_printf(struct client *, const char *, ...)
88 	    __attribute__((__format__(printf, 2, 3)))
89 	    __attribute__((__nonnull__(2)));
90 int	fcgi_cmp(struct fcgi *, struct fcgi *);
91 int	fcgi_client_cmp(struct client *, struct client *);
92 
93 /* msearchd.c */
94 extern const char	*tmpl_head;
95 extern const char	*tmpl_search;
96 extern const char	*tmpl_search_header;
97 extern const char	*tmpl_foot;
98 
99 /* server.c */
100 int	server_main(const char *);
101 int	server_handle(struct env *, struct client *);
102 void	server_client_free(struct client *);
103 
104 SPLAY_PROTOTYPE(client_tree, client, clt_nodes, fcgi_client_cmp);
105 SPLAY_PROTOTYPE(fcgi_tree, fcgi, fcg_nodes, fcgi_cmp);