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-rw-r--r--app/nginx/src/mail/ngx_mail_pop3_handler.c515
1 files changed, 0 insertions, 515 deletions
diff --git a/app/nginx/src/mail/ngx_mail_pop3_handler.c b/app/nginx/src/mail/ngx_mail_pop3_handler.c
deleted file mode 100644
index 9310c27..0000000
--- a/app/nginx/src/mail/ngx_mail_pop3_handler.c
+++ /dev/null
@@ -1,515 +0,0 @@
-
-/*
- * Copyright (C) Igor Sysoev
- * Copyright (C) Nginx, Inc.
- */
-
-
-#include <ngx_config.h>
-#include <ngx_core.h>
-#include <ngx_event.h>
-#include <ngx_mail.h>
-#include <ngx_mail_pop3_module.h>
-
-
-static ngx_int_t ngx_mail_pop3_user(ngx_mail_session_t *s, ngx_connection_t *c);
-static ngx_int_t ngx_mail_pop3_pass(ngx_mail_session_t *s, ngx_connection_t *c);
-static ngx_int_t ngx_mail_pop3_capa(ngx_mail_session_t *s, ngx_connection_t *c,
- ngx_int_t stls);
-static ngx_int_t ngx_mail_pop3_stls(ngx_mail_session_t *s, ngx_connection_t *c);
-static ngx_int_t ngx_mail_pop3_apop(ngx_mail_session_t *s, ngx_connection_t *c);
-static ngx_int_t ngx_mail_pop3_auth(ngx_mail_session_t *s, ngx_connection_t *c);
-
-
-static u_char pop3_greeting[] = "+OK POP3 ready" CRLF;
-static u_char pop3_ok[] = "+OK" CRLF;
-static u_char pop3_next[] = "+ " CRLF;
-static u_char pop3_username[] = "+ VXNlcm5hbWU6" CRLF;
-static u_char pop3_password[] = "+ UGFzc3dvcmQ6" CRLF;
-static u_char pop3_invalid_command[] = "-ERR invalid command" CRLF;
-
-
-void
-ngx_mail_pop3_init_session(ngx_mail_session_t *s, ngx_connection_t *c)
-{
- u_char *p;
- ngx_mail_core_srv_conf_t *cscf;
- ngx_mail_pop3_srv_conf_t *pscf;
-
- pscf = ngx_mail_get_module_srv_conf(s, ngx_mail_pop3_module);
- cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module);
-
- if (pscf->auth_methods
- & (NGX_MAIL_AUTH_APOP_ENABLED|NGX_MAIL_AUTH_CRAM_MD5_ENABLED))
- {
- if (ngx_mail_salt(s, c, cscf) != NGX_OK) {
- ngx_mail_session_internal_server_error(s);
- return;
- }
-
- s->out.data = ngx_pnalloc(c->pool, sizeof(pop3_greeting) + s->salt.len);
- if (s->out.data == NULL) {
- ngx_mail_session_internal_server_error(s);
- return;
- }
-
- p = ngx_cpymem(s->out.data, pop3_greeting, sizeof(pop3_greeting) - 3);
- *p++ = ' ';
- p = ngx_cpymem(p, s->salt.data, s->salt.len);
-
- s->out.len = p - s->out.data;
-
- } else {
- ngx_str_set(&s->out, pop3_greeting);
- }
-
- c->read->handler = ngx_mail_pop3_init_protocol;
-
- ngx_add_timer(c->read, cscf->timeout);
-
- if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
- ngx_mail_close_connection(c);
- }
-
- ngx_mail_send(c->write);
-}
-
-
-void
-ngx_mail_pop3_init_protocol(ngx_event_t *rev)
-{
- ngx_connection_t *c;
- ngx_mail_session_t *s;
-
- c = rev->data;
-
- c->log->action = "in auth state";
-
- if (rev->timedout) {
- ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
- c->timedout = 1;
- ngx_mail_close_connection(c);
- return;
- }
-
- s = c->data;
-
- if (s->buffer == NULL) {
- if (ngx_array_init(&s->args, c->pool, 2, sizeof(ngx_str_t))
- == NGX_ERROR)
- {
- ngx_mail_session_internal_server_error(s);
- return;
- }
-
- s->buffer = ngx_create_temp_buf(c->pool, 128);
- if (s->buffer == NULL) {
- ngx_mail_session_internal_server_error(s);
- return;
- }
- }
-
- s->mail_state = ngx_pop3_start;
- c->read->handler = ngx_mail_pop3_auth_state;
-
- ngx_mail_pop3_auth_state(rev);
-}
-
-
-void
-ngx_mail_pop3_auth_state(ngx_event_t *rev)
-{
- ngx_int_t rc;
- ngx_connection_t *c;
- ngx_mail_session_t *s;
-
- c = rev->data;
- s = c->data;
-
- ngx_log_debug0(NGX_LOG_DEBUG_MAIL, c->log, 0, "pop3 auth state");
-
- if (rev->timedout) {
- ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
- c->timedout = 1;
- ngx_mail_close_connection(c);
- return;
- }
-
- if (s->out.len) {
- ngx_log_debug0(NGX_LOG_DEBUG_MAIL, c->log, 0, "pop3 send handler busy");
- s->blocked = 1;
- return;
- }
-
- s->blocked = 0;
-
- rc = ngx_mail_read_command(s, c);
-
- if (rc == NGX_AGAIN || rc == NGX_ERROR) {
- return;
- }
-
- ngx_str_set(&s->out, pop3_ok);
-
- if (rc == NGX_OK) {
- switch (s->mail_state) {
-
- case ngx_pop3_start:
-
- switch (s->command) {
-
- case NGX_POP3_USER:
- rc = ngx_mail_pop3_user(s, c);
- break;
-
- case NGX_POP3_CAPA:
- rc = ngx_mail_pop3_capa(s, c, 1);
- break;
-
- case NGX_POP3_APOP:
- rc = ngx_mail_pop3_apop(s, c);
- break;
-
- case NGX_POP3_AUTH:
- rc = ngx_mail_pop3_auth(s, c);
- break;
-
- case NGX_POP3_QUIT:
- s->quit = 1;
- break;
-
- case NGX_POP3_NOOP:
- break;
-
- case NGX_POP3_STLS:
- rc = ngx_mail_pop3_stls(s, c);
- break;
-
- default:
- rc = NGX_MAIL_PARSE_INVALID_COMMAND;
- break;
- }
-
- break;
-
- case ngx_pop3_user:
-
- switch (s->command) {
-
- case NGX_POP3_PASS:
- rc = ngx_mail_pop3_pass(s, c);
- break;
-
- case NGX_POP3_CAPA:
- rc = ngx_mail_pop3_capa(s, c, 0);
- break;
-
- case NGX_POP3_QUIT:
- s->quit = 1;
- break;
-
- case NGX_POP3_NOOP:
- break;
-
- default:
- rc = NGX_MAIL_PARSE_INVALID_COMMAND;
- break;
- }
-
- break;
-
- /* suppress warnings */
- case ngx_pop3_passwd:
- break;
-
- case ngx_pop3_auth_login_username:
- rc = ngx_mail_auth_login_username(s, c, 0);
-
- ngx_str_set(&s->out, pop3_password);
- s->mail_state = ngx_pop3_auth_login_password;
- break;
-
- case ngx_pop3_auth_login_password:
- rc = ngx_mail_auth_login_password(s, c);
- break;
-
- case ngx_pop3_auth_plain:
- rc = ngx_mail_auth_plain(s, c, 0);
- break;
-
- case ngx_pop3_auth_cram_md5:
- rc = ngx_mail_auth_cram_md5(s, c);
- break;
-
- case ngx_pop3_auth_external:
- rc = ngx_mail_auth_external(s, c, 0);
- break;
- }
- }
-
- switch (rc) {
-
- case NGX_DONE:
- ngx_mail_auth(s, c);
- return;
-
- case NGX_ERROR:
- ngx_mail_session_internal_server_error(s);
- return;
-
- case NGX_MAIL_PARSE_INVALID_COMMAND:
- s->mail_state = ngx_pop3_start;
- s->state = 0;
-
- ngx_str_set(&s->out, pop3_invalid_command);
-
- /* fall through */
-
- case NGX_OK:
-
- s->args.nelts = 0;
- s->buffer->pos = s->buffer->start;
- s->buffer->last = s->buffer->start;
-
- if (s->state) {
- s->arg_start = s->buffer->start;
- }
-
- ngx_mail_send(c->write);
- }
-}
-
-static ngx_int_t
-ngx_mail_pop3_user(ngx_mail_session_t *s, ngx_connection_t *c)
-{
- ngx_str_t *arg;
-
-#if (NGX_MAIL_SSL)
- if (ngx_mail_starttls_only(s, c)) {
- return NGX_MAIL_PARSE_INVALID_COMMAND;
- }
-#endif
-
- if (s->args.nelts != 1) {
- return NGX_MAIL_PARSE_INVALID_COMMAND;
- }
-
- arg = s->args.elts;
- s->login.len = arg[0].len;
- s->login.data = ngx_pnalloc(c->pool, s->login.len);
- if (s->login.data == NULL) {
- return NGX_ERROR;
- }
-
- ngx_memcpy(s->login.data, arg[0].data, s->login.len);
-
- ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0,
- "pop3 login: \"%V\"", &s->login);
-
- s->mail_state = ngx_pop3_user;
-
- return NGX_OK;
-}
-
-
-static ngx_int_t
-ngx_mail_pop3_pass(ngx_mail_session_t *s, ngx_connection_t *c)
-{
- ngx_str_t *arg;
-
- if (s->args.nelts != 1) {
- return NGX_MAIL_PARSE_INVALID_COMMAND;
- }
-
- arg = s->args.elts;
- s->passwd.len = arg[0].len;
- s->passwd.data = ngx_pnalloc(c->pool, s->passwd.len);
- if (s->passwd.data == NULL) {
- return NGX_ERROR;
- }
-
- ngx_memcpy(s->passwd.data, arg[0].data, s->passwd.len);
-
-#if (NGX_DEBUG_MAIL_PASSWD)
- ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0,
- "pop3 passwd: \"%V\"", &s->passwd);
-#endif
-
- return NGX_DONE;
-}
-
-
-static ngx_int_t
-ngx_mail_pop3_capa(ngx_mail_session_t *s, ngx_connection_t *c, ngx_int_t stls)
-{
- ngx_mail_pop3_srv_conf_t *pscf;
-
- pscf = ngx_mail_get_module_srv_conf(s, ngx_mail_pop3_module);
-
-#if (NGX_MAIL_SSL)
-
- if (stls && c->ssl == NULL) {
- ngx_mail_ssl_conf_t *sslcf;
-
- sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module);
-
- if (sslcf->starttls == NGX_MAIL_STARTTLS_ON) {
- s->out = pscf->starttls_capability;
- return NGX_OK;
- }
-
- if (sslcf->starttls == NGX_MAIL_STARTTLS_ONLY) {
- s->out = pscf->starttls_only_capability;
- return NGX_OK;
- }
- }
-
-#endif
-
- s->out = pscf->capability;
- return NGX_OK;
-}
-
-
-static ngx_int_t
-ngx_mail_pop3_stls(ngx_mail_session_t *s, ngx_connection_t *c)
-{
-#if (NGX_MAIL_SSL)
- ngx_mail_ssl_conf_t *sslcf;
-
- if (c->ssl == NULL) {
- sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module);
- if (sslcf->starttls) {
- c->read->handler = ngx_mail_starttls_handler;
- return NGX_OK;
- }
- }
-
-#endif
-
- return NGX_MAIL_PARSE_INVALID_COMMAND;
-}
-
-
-static ngx_int_t
-ngx_mail_pop3_apop(ngx_mail_session_t *s, ngx_connection_t *c)
-{
- ngx_str_t *arg;
- ngx_mail_pop3_srv_conf_t *pscf;
-
-#if (NGX_MAIL_SSL)
- if (ngx_mail_starttls_only(s, c)) {
- return NGX_MAIL_PARSE_INVALID_COMMAND;
- }
-#endif
-
- if (s->args.nelts != 2) {
- return NGX_MAIL_PARSE_INVALID_COMMAND;
- }
-
- pscf = ngx_mail_get_module_srv_conf(s, ngx_mail_pop3_module);
-
- if (!(pscf->auth_methods & NGX_MAIL_AUTH_APOP_ENABLED)) {
- return NGX_MAIL_PARSE_INVALID_COMMAND;
- }
-
- arg = s->args.elts;
-
- s->login.len = arg[0].len;
- s->login.data = ngx_pnalloc(c->pool, s->login.len);
- if (s->login.data == NULL) {
- return NGX_ERROR;
- }
-
- ngx_memcpy(s->login.data, arg[0].data, s->login.len);
-
- s->passwd.len = arg[1].len;
- s->passwd.data = ngx_pnalloc(c->pool, s->passwd.len);
- if (s->passwd.data == NULL) {
- return NGX_ERROR;
- }
-
- ngx_memcpy(s->passwd.data, arg[1].data, s->passwd.len);
-
- ngx_log_debug2(NGX_LOG_DEBUG_MAIL, c->log, 0,
- "pop3 apop: \"%V\" \"%V\"", &s->login, &s->passwd);
-
- s->auth_method = NGX_MAIL_AUTH_APOP;
-
- return NGX_DONE;
-}
-
-
-static ngx_int_t
-ngx_mail_pop3_auth(ngx_mail_session_t *s, ngx_connection_t *c)
-{
- ngx_int_t rc;
- ngx_mail_pop3_srv_conf_t *pscf;
-
-#if (NGX_MAIL_SSL)
- if (ngx_mail_starttls_only(s, c)) {
- return NGX_MAIL_PARSE_INVALID_COMMAND;
- }
-#endif
-
- pscf = ngx_mail_get_module_srv_conf(s, ngx_mail_pop3_module);
-
- if (s->args.nelts == 0) {
- s->out = pscf->auth_capability;
- s->state = 0;
-
- return NGX_OK;
- }
-
- rc = ngx_mail_auth_parse(s, c);
-
- switch (rc) {
-
- case NGX_MAIL_AUTH_LOGIN:
-
- ngx_str_set(&s->out, pop3_username);
- s->mail_state = ngx_pop3_auth_login_username;
-
- return NGX_OK;
-
- case NGX_MAIL_AUTH_LOGIN_USERNAME:
-
- ngx_str_set(&s->out, pop3_password);
- s->mail_state = ngx_pop3_auth_login_password;
-
- return ngx_mail_auth_login_username(s, c, 1);
-
- case NGX_MAIL_AUTH_PLAIN:
-
- ngx_str_set(&s->out, pop3_next);
- s->mail_state = ngx_pop3_auth_plain;
-
- return NGX_OK;
-
- case NGX_MAIL_AUTH_CRAM_MD5:
-
- if (!(pscf->auth_methods & NGX_MAIL_AUTH_CRAM_MD5_ENABLED)) {
- return NGX_MAIL_PARSE_INVALID_COMMAND;
- }
-
- if (ngx_mail_auth_cram_md5_salt(s, c, "+ ", 2) == NGX_OK) {
- s->mail_state = ngx_pop3_auth_cram_md5;
- return NGX_OK;
- }
-
- return NGX_ERROR;
-
- case NGX_MAIL_AUTH_EXTERNAL:
-
- if (!(pscf->auth_methods & NGX_MAIL_AUTH_EXTERNAL_ENABLED)) {
- return NGX_MAIL_PARSE_INVALID_COMMAND;
- }
-
- ngx_str_set(&s->out, pop3_username);
- s->mail_state = ngx_pop3_auth_external;
-
- return NGX_OK;
- }
-
- return rc;
-}