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/*
* Copyright (C) Igor Sysoev
*/
#ifndef _NGX_IMAP_H_INCLUDED_
#define _NGX_IMAP_H_INCLUDED_
#include <ngx_config.h>
#include <ngx_core.h>
#include <ngx_event.h>
#include <ngx_event_connect.h>
#if (NGX_IMAP_SSL)
#include <ngx_imap_ssl_module.h>
#endif
typedef struct {
void **main_conf;
void **srv_conf;
} ngx_imap_conf_ctx_t;
typedef struct {
ngx_array_t servers; /* ngx_imap_core_srv_conf_t */
} ngx_imap_core_main_conf_t;
#define NGX_IMAP_POP3_PROTOCOL 0
#define NGX_IMAP_IMAP_PROTOCOL 1
typedef struct {
ngx_msec_t timeout;
size_t imap_client_buffer_size;
ngx_uint_t protocol;
ngx_buf_t *pop3_capability;
ngx_buf_t *imap_capability;
ngx_array_t pop3_capabilities;
ngx_array_t imap_capabilities;
/* server ctx */
ngx_imap_conf_ctx_t *ctx;
} ngx_imap_core_srv_conf_t;
typedef struct {
void *(*create_main_conf)(ngx_conf_t *cf);
char *(*init_main_conf)(ngx_conf_t *cf, void *conf);
void *(*create_srv_conf)(ngx_conf_t *cf);
char *(*merge_srv_conf)(ngx_conf_t *cf, void *prev, void *conf);
} ngx_imap_module_t;
typedef enum {
ngx_imap_start = 0,
ngx_imap_login,
ngx_imap_user,
ngx_imap_passwd,
} ngx_imap_state_e;
typedef enum {
ngx_pop3_start = 0,
ngx_pop3_user,
ngx_pop3_passwd
} ngx_po3_state_e;
typedef struct {
ngx_peer_connection_t upstream;
ngx_buf_t *buffer;
} ngx_imap_proxy_ctx_t;
typedef struct {
uint32_t signature; /* "IMAP" */
ngx_connection_t *connection;
ngx_str_t out;
ngx_buf_t *buffer;
void **ctx;
void **main_conf;
void **srv_conf;
ngx_imap_proxy_ctx_t *proxy;
ngx_uint_t imap_state;
unsigned blocked:1;
unsigned quit:1;
unsigned protocol:1;
unsigned quoted:1;
ngx_str_t login;
ngx_str_t passwd;
ngx_str_t tag;
ngx_str_t tagged_line;
ngx_uint_t command;
ngx_array_t args;
ngx_uint_t login_attempt;
/* used to parse IMAP/POP3 command */
ngx_uint_t state;
u_char *cmd_start;
u_char *arg_start;
u_char *arg_end;
ngx_uint_t literal_len;
} ngx_imap_session_t;
#define NGX_POP3_USER 1
#define NGX_POP3_PASS 2
#define NGX_POP3_CAPA 3
#define NGX_POP3_QUIT 4
#define NGX_POP3_NOOP 5
#define NGX_POP3_APOP 6
#define NGX_POP3_STAT 7
#define NGX_POP3_LIST 8
#define NGX_POP3_RETR 9
#define NGX_POP3_DELE 10
#define NGX_POP3_RSET 11
#define NGX_POP3_TOP 12
#define NGX_POP3_UIDL 13
#define NGX_IMAP_LOGIN 1
#define NGX_IMAP_LOGOUT 2
#define NGX_IMAP_CAPABILITY 3
#define NGX_IMAP_NOOP 4
#define NGX_IMAP_NEXT 5
#define NGX_IMAP_PARSE_INVALID_COMMAND 20
#define NGX_IMAP_PROXY_INVALID 10
#define NGX_IMAP_PROXY_ERROR 11
#define NGX_IMAP_MODULE 0x50414D49 /* "IMAP" */
#define NGX_IMAP_MAIN_CONF 0x02000000
#define NGX_IMAP_SRV_CONF 0x04000000
#define NGX_IMAP_MAIN_CONF_OFFSET offsetof(ngx_imap_conf_ctx_t, main_conf)
#define NGX_IMAP_SRV_CONF_OFFSET offsetof(ngx_imap_conf_ctx_t, srv_conf)
#define ngx_imap_get_module_ctx(s, module) (s)->ctx[module.ctx_index]
#define ngx_imap_set_ctx(s, c, module) s->ctx[module.ctx_index] = c;
#define ngx_imap_delete_ctx(s, module) s->ctx[module.ctx_index] = NULL;
#define ngx_imap_get_module_main_conf(s, module) \
(s)->main_conf[module.ctx_index]
#define ngx_imap_get_module_srv_conf(s, module) (s)->srv_conf[module.ctx_index]
void ngx_imap_init_connection(ngx_connection_t *c);
void ngx_imap_send(ngx_event_t *wev);
void ngx_imap_auth_state(ngx_event_t *rev);
void ngx_pop3_auth_state(ngx_event_t *rev);
void ngx_imap_close_connection(ngx_connection_t *c);
void ngx_imap_session_internal_server_error(ngx_imap_session_t *s);
ngx_int_t ngx_imap_parse_command(ngx_imap_session_t *s);
ngx_int_t ngx_pop3_parse_command(ngx_imap_session_t *s);
/* STUB */
void ngx_imap_proxy_init(ngx_imap_session_t *s, ngx_peers_t *peers);
void ngx_imap_auth_http_init(ngx_imap_session_t *s);
/**/
extern ngx_uint_t ngx_imap_max_module;
extern ngx_module_t ngx_imap_core_module;
#endif /* _NGX_IMAP_H_INCLUDED_ */
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