From bf8c01bfcd015d43cfbcb893e48c6a83a95c91ec Mon Sep 17 00:00:00 2001 From: Ben Magistro Date: Sun, 17 Apr 2022 09:45:02 -0400 Subject: Drop nginx Nginx is not part of the core library being developed and needs to be moved to its own repository to allow it to be more easily maintained. Signed-off-by: Ben Magistro Change-Id: I5639e84ba0564ccd49ffcffa7ec9fcd57827bd6d --- app/nginx/src/mail/ngx_mail_parse.c | 932 ------------------------------------ 1 file changed, 932 deletions(-) delete mode 100644 app/nginx/src/mail/ngx_mail_parse.c (limited to 'app/nginx/src/mail/ngx_mail_parse.c') diff --git a/app/nginx/src/mail/ngx_mail_parse.c b/app/nginx/src/mail/ngx_mail_parse.c deleted file mode 100644 index 2c2cdff..0000000 --- a/app/nginx/src/mail/ngx_mail_parse.c +++ /dev/null @@ -1,932 +0,0 @@ - -/* - * Copyright (C) Igor Sysoev - * Copyright (C) Nginx, Inc. - */ - - -#include -#include -#include -#include -#include -#include -#include - - -ngx_int_t -ngx_mail_pop3_parse_command(ngx_mail_session_t *s) -{ - u_char ch, *p, *c, c0, c1, c2, c3; - ngx_str_t *arg; - enum { - sw_start = 0, - sw_spaces_before_argument, - sw_argument, - sw_almost_done - } state; - - state = s->state; - - for (p = s->buffer->pos; p < s->buffer->last; p++) { - ch = *p; - - switch (state) { - - /* POP3 command */ - case sw_start: - if (ch == ' ' || ch == CR || ch == LF) { - c = s->buffer->start; - - if (p - c == 4) { - - c0 = ngx_toupper(c[0]); - c1 = ngx_toupper(c[1]); - c2 = ngx_toupper(c[2]); - c3 = ngx_toupper(c[3]); - - if (c0 == 'U' && c1 == 'S' && c2 == 'E' && c3 == 'R') - { - s->command = NGX_POP3_USER; - - } else if (c0 == 'P' && c1 == 'A' && c2 == 'S' && c3 == 'S') - { - s->command = NGX_POP3_PASS; - - } else if (c0 == 'A' && c1 == 'P' && c2 == 'O' && c3 == 'P') - { - s->command = NGX_POP3_APOP; - - } else if (c0 == 'Q' && c1 == 'U' && c2 == 'I' && c3 == 'T') - { - s->command = NGX_POP3_QUIT; - - } else if (c0 == 'C' && c1 == 'A' && c2 == 'P' && c3 == 'A') - { - s->command = NGX_POP3_CAPA; - - } else if (c0 == 'A' && c1 == 'U' && c2 == 'T' && c3 == 'H') - { - s->command = NGX_POP3_AUTH; - - } else if (c0 == 'N' && c1 == 'O' && c2 == 'O' && c3 == 'P') - { - s->command = NGX_POP3_NOOP; -#if (NGX_MAIL_SSL) - } else if (c0 == 'S' && c1 == 'T' && c2 == 'L' && c3 == 'S') - { - s->command = NGX_POP3_STLS; -#endif - } else { - goto invalid; - } - - } else { - goto invalid; - } - - switch (ch) { - case ' ': - state = sw_spaces_before_argument; - break; - case CR: - state = sw_almost_done; - break; - case LF: - goto done; - } - break; - } - - if ((ch < 'A' || ch > 'Z') && (ch < 'a' || ch > 'z')) { - goto invalid; - } - - break; - - case sw_spaces_before_argument: - switch (ch) { - case ' ': - break; - case CR: - state = sw_almost_done; - s->arg_end = p; - break; - case LF: - s->arg_end = p; - goto done; - default: - if (s->args.nelts <= 2) { - state = sw_argument; - s->arg_start = p; - break; - } - goto invalid; - } - break; - - case sw_argument: - switch (ch) { - - case ' ': - - /* - * the space should be considered as part of the at username - * or password, but not of argument in other commands - */ - - if (s->command == NGX_POP3_USER - || s->command == NGX_POP3_PASS) - { - break; - } - - /* fall through */ - - case CR: - case LF: - arg = ngx_array_push(&s->args); - if (arg == NULL) { - return NGX_ERROR; - } - arg->len = p - s->arg_start; - arg->data = s->arg_start; - s->arg_start = NULL; - - switch (ch) { - case ' ': - state = sw_spaces_before_argument; - break; - case CR: - state = sw_almost_done; - break; - case LF: - goto done; - } - break; - - default: - break; - } - break; - - case sw_almost_done: - switch (ch) { - case LF: - goto done; - default: - goto invalid; - } - } - } - - s->buffer->pos = p; - s->state = state; - - return NGX_AGAIN; - -done: - - s->buffer->pos = p + 1; - - if (s->arg_start) { - arg = ngx_array_push(&s->args); - if (arg == NULL) { - return NGX_ERROR; - } - arg->len = s->arg_end - s->arg_start; - arg->data = s->arg_start; - s->arg_start = NULL; - } - - s->state = (s->command != NGX_POP3_AUTH) ? sw_start : sw_argument; - - return NGX_OK; - -invalid: - - s->state = sw_start; - s->arg_start = NULL; - - return NGX_MAIL_PARSE_INVALID_COMMAND; -} - - -ngx_int_t -ngx_mail_imap_parse_command(ngx_mail_session_t *s) -{ - u_char ch, *p, *c; - ngx_str_t *arg; - enum { - sw_start = 0, - sw_spaces_before_command, - sw_command, - sw_spaces_before_argument, - sw_argument, - sw_backslash, - sw_literal, - sw_no_sync_literal_argument, - sw_start_literal_argument, - sw_literal_argument, - sw_end_literal_argument, - sw_almost_done - } state; - - state = s->state; - - for (p = s->buffer->pos; p < s->buffer->last; p++) { - ch = *p; - - switch (state) { - - /* IMAP tag */ - case sw_start: - switch (ch) { - case ' ': - s->tag.len = p - s->buffer->start + 1; - s->tag.data = s->buffer->start; - state = sw_spaces_before_command; - break; - case CR: - s->state = sw_start; - return NGX_MAIL_PARSE_INVALID_COMMAND; - case LF: - s->state = sw_start; - return NGX_MAIL_PARSE_INVALID_COMMAND; - } - break; - - case sw_spaces_before_command: - switch (ch) { - case ' ': - break; - case CR: - s->state = sw_start; - return NGX_MAIL_PARSE_INVALID_COMMAND; - case LF: - s->state = sw_start; - return NGX_MAIL_PARSE_INVALID_COMMAND; - default: - s->cmd_start = p; - state = sw_command; - break; - } - break; - - case sw_command: - if (ch == ' ' || ch == CR || ch == LF) { - - c = s->cmd_start; - - switch (p - c) { - - case 4: - if ((c[0] == 'N' || c[0] == 'n') - && (c[1] == 'O'|| c[1] == 'o') - && (c[2] == 'O'|| c[2] == 'o') - && (c[3] == 'P'|| c[3] == 'p')) - { - s->command = NGX_IMAP_NOOP; - - } else { - goto invalid; - } - break; - - case 5: - if ((c[0] == 'L'|| c[0] == 'l') - && (c[1] == 'O'|| c[1] == 'o') - && (c[2] == 'G'|| c[2] == 'g') - && (c[3] == 'I'|| c[3] == 'i') - && (c[4] == 'N'|| c[4] == 'n')) - { - s->command = NGX_IMAP_LOGIN; - - } else { - goto invalid; - } - break; - - case 6: - if ((c[0] == 'L'|| c[0] == 'l') - && (c[1] == 'O'|| c[1] == 'o') - && (c[2] == 'G'|| c[2] == 'g') - && (c[3] == 'O'|| c[3] == 'o') - && (c[4] == 'U'|| c[4] == 'u') - && (c[5] == 'T'|| c[5] == 't')) - { - s->command = NGX_IMAP_LOGOUT; - - } else { - goto invalid; - } - break; - -#if (NGX_MAIL_SSL) - case 8: - if ((c[0] == 'S'|| c[0] == 's') - && (c[1] == 'T'|| c[1] == 't') - && (c[2] == 'A'|| c[2] == 'a') - && (c[3] == 'R'|| c[3] == 'r') - && (c[4] == 'T'|| c[4] == 't') - && (c[5] == 'T'|| c[5] == 't') - && (c[6] == 'L'|| c[6] == 'l') - && (c[7] == 'S'|| c[7] == 's')) - { - s->command = NGX_IMAP_STARTTLS; - - } else { - goto invalid; - } - break; -#endif - - case 10: - if ((c[0] == 'C'|| c[0] == 'c') - && (c[1] == 'A'|| c[1] == 'a') - && (c[2] == 'P'|| c[2] == 'p') - && (c[3] == 'A'|| c[3] == 'a') - && (c[4] == 'B'|| c[4] == 'b') - && (c[5] == 'I'|| c[5] == 'i') - && (c[6] == 'L'|| c[6] == 'l') - && (c[7] == 'I'|| c[7] == 'i') - && (c[8] == 'T'|| c[8] == 't') - && (c[9] == 'Y'|| c[9] == 'y')) - { - s->command = NGX_IMAP_CAPABILITY; - - } else { - goto invalid; - } - break; - - case 12: - if ((c[0] == 'A'|| c[0] == 'a') - && (c[1] == 'U'|| c[1] == 'u') - && (c[2] == 'T'|| c[2] == 't') - && (c[3] == 'H'|| c[3] == 'h') - && (c[4] == 'E'|| c[4] == 'e') - && (c[5] == 'N'|| c[5] == 'n') - && (c[6] == 'T'|| c[6] == 't') - && (c[7] == 'I'|| c[7] == 'i') - && (c[8] == 'C'|| c[8] == 'c') - && (c[9] == 'A'|| c[9] == 'a') - && (c[10] == 'T'|| c[10] == 't') - && (c[11] == 'E'|| c[11] == 'e')) - { - s->command = NGX_IMAP_AUTHENTICATE; - - } else { - goto invalid; - } - break; - - default: - goto invalid; - } - - switch (ch) { - case ' ': - state = sw_spaces_before_argument; - break; - case CR: - state = sw_almost_done; - break; - case LF: - goto done; - } - break; - } - - if ((ch < 'A' || ch > 'Z') && (ch < 'a' || ch > 'z')) { - goto invalid; - } - - break; - - case sw_spaces_before_argument: - switch (ch) { - case ' ': - break; - case CR: - state = sw_almost_done; - s->arg_end = p; - break; - case LF: - s->arg_end = p; - goto done; - case '"': - if (s->args.nelts <= 2) { - s->quoted = 1; - s->arg_start = p + 1; - state = sw_argument; - break; - } - goto invalid; - case '{': - if (s->args.nelts <= 2) { - state = sw_literal; - break; - } - goto invalid; - default: - if (s->args.nelts <= 2) { - s->arg_start = p; - state = sw_argument; - break; - } - goto invalid; - } - break; - - case sw_argument: - if (ch == ' ' && s->quoted) { - break; - } - - switch (ch) { - case '"': - if (!s->quoted) { - break; - } - s->quoted = 0; - /* fall through */ - case ' ': - case CR: - case LF: - arg = ngx_array_push(&s->args); - if (arg == NULL) { - return NGX_ERROR; - } - arg->len = p - s->arg_start; - arg->data = s->arg_start; - s->arg_start = NULL; - - switch (ch) { - case '"': - case ' ': - state = sw_spaces_before_argument; - break; - case CR: - state = sw_almost_done; - break; - case LF: - goto done; - } - break; - case '\\': - if (s->quoted) { - s->backslash = 1; - state = sw_backslash; - } - break; - } - break; - - case sw_backslash: - switch (ch) { - case CR: - case LF: - goto invalid; - default: - state = sw_argument; - } - break; - - case sw_literal: - if (ch >= '0' && ch <= '9') { - s->literal_len = s->literal_len * 10 + (ch - '0'); - break; - } - if (ch == '}') { - state = sw_start_literal_argument; - break; - } - if (ch == '+') { - state = sw_no_sync_literal_argument; - break; - } - goto invalid; - - case sw_no_sync_literal_argument: - if (ch == '}') { - s->no_sync_literal = 1; - state = sw_start_literal_argument; - break; - } - goto invalid; - - case sw_start_literal_argument: - switch (ch) { - case CR: - break; - case LF: - s->buffer->pos = p + 1; - s->arg_start = p + 1; - if (s->no_sync_literal == 0) { - s->state = sw_literal_argument; - return NGX_IMAP_NEXT; - } - state = sw_literal_argument; - s->no_sync_literal = 0; - break; - default: - goto invalid; - } - break; - - case sw_literal_argument: - if (s->literal_len && --s->literal_len) { - break; - } - - arg = ngx_array_push(&s->args); - if (arg == NULL) { - return NGX_ERROR; - } - arg->len = p + 1 - s->arg_start; - arg->data = s->arg_start; - s->arg_start = NULL; - state = sw_end_literal_argument; - - break; - - case sw_end_literal_argument: - switch (ch) { - case '{': - if (s->args.nelts <= 2) { - state = sw_literal; - break; - } - goto invalid; - case CR: - state = sw_almost_done; - break; - case LF: - goto done; - default: - state = sw_spaces_before_argument; - break; - } - break; - - case sw_almost_done: - switch (ch) { - case LF: - goto done; - default: - goto invalid; - } - } - } - - s->buffer->pos = p; - s->state = state; - - return NGX_AGAIN; - -done: - - s->buffer->pos = p + 1; - - if (s->arg_start) { - arg = ngx_array_push(&s->args); - if (arg == NULL) { - return NGX_ERROR; - } - arg->len = s->arg_end - s->arg_start; - arg->data = s->arg_start; - - s->arg_start = NULL; - s->cmd_start = NULL; - s->quoted = 0; - s->no_sync_literal = 0; - s->literal_len = 0; - } - - s->state = (s->command != NGX_IMAP_AUTHENTICATE) ? sw_start : sw_argument; - - return NGX_OK; - -invalid: - - s->state = sw_start; - s->quoted = 0; - s->no_sync_literal = 0; - s->literal_len = 0; - - return NGX_MAIL_PARSE_INVALID_COMMAND; -} - - -ngx_int_t -ngx_mail_smtp_parse_command(ngx_mail_session_t *s) -{ - u_char ch, *p, *c, c0, c1, c2, c3; - ngx_str_t *arg; - enum { - sw_start = 0, - sw_command, - sw_invalid, - sw_spaces_before_argument, - sw_argument, - sw_almost_done - } state; - - state = s->state; - - for (p = s->buffer->pos; p < s->buffer->last; p++) { - ch = *p; - - switch (state) { - - /* SMTP command */ - case sw_start: - s->cmd_start = p; - state = sw_command; - - /* fall through */ - - case sw_command: - if (ch == ' ' || ch == CR || ch == LF) { - c = s->cmd_start; - - if (p - c == 4) { - - c0 = ngx_toupper(c[0]); - c1 = ngx_toupper(c[1]); - c2 = ngx_toupper(c[2]); - c3 = ngx_toupper(c[3]); - - if (c0 == 'H' && c1 == 'E' && c2 == 'L' && c3 == 'O') - { - s->command = NGX_SMTP_HELO; - - } else if (c0 == 'E' && c1 == 'H' && c2 == 'L' && c3 == 'O') - { - s->command = NGX_SMTP_EHLO; - - } else if (c0 == 'Q' && c1 == 'U' && c2 == 'I' && c3 == 'T') - { - s->command = NGX_SMTP_QUIT; - - } else if (c0 == 'A' && c1 == 'U' && c2 == 'T' && c3 == 'H') - { - s->command = NGX_SMTP_AUTH; - - } else if (c0 == 'N' && c1 == 'O' && c2 == 'O' && c3 == 'P') - { - s->command = NGX_SMTP_NOOP; - - } else if (c0 == 'M' && c1 == 'A' && c2 == 'I' && c3 == 'L') - { - s->command = NGX_SMTP_MAIL; - - } else if (c0 == 'R' && c1 == 'S' && c2 == 'E' && c3 == 'T') - { - s->command = NGX_SMTP_RSET; - - } else if (c0 == 'R' && c1 == 'C' && c2 == 'P' && c3 == 'T') - { - s->command = NGX_SMTP_RCPT; - - } else if (c0 == 'V' && c1 == 'R' && c2 == 'F' && c3 == 'Y') - { - s->command = NGX_SMTP_VRFY; - - } else if (c0 == 'E' && c1 == 'X' && c2 == 'P' && c3 == 'N') - { - s->command = NGX_SMTP_EXPN; - - } else if (c0 == 'H' && c1 == 'E' && c2 == 'L' && c3 == 'P') - { - s->command = NGX_SMTP_HELP; - - } else { - goto invalid; - } -#if (NGX_MAIL_SSL) - } else if (p - c == 8) { - - if ((c[0] == 'S'|| c[0] == 's') - && (c[1] == 'T'|| c[1] == 't') - && (c[2] == 'A'|| c[2] == 'a') - && (c[3] == 'R'|| c[3] == 'r') - && (c[4] == 'T'|| c[4] == 't') - && (c[5] == 'T'|| c[5] == 't') - && (c[6] == 'L'|| c[6] == 'l') - && (c[7] == 'S'|| c[7] == 's')) - { - s->command = NGX_SMTP_STARTTLS; - - } else { - goto invalid; - } -#endif - } else { - goto invalid; - } - - s->cmd.data = s->cmd_start; - s->cmd.len = p - s->cmd_start; - - switch (ch) { - case ' ': - state = sw_spaces_before_argument; - break; - case CR: - state = sw_almost_done; - break; - case LF: - goto done; - } - break; - } - - if ((ch < 'A' || ch > 'Z') && (ch < 'a' || ch > 'z')) { - goto invalid; - } - - break; - - case sw_invalid: - goto invalid; - - case sw_spaces_before_argument: - switch (ch) { - case ' ': - break; - case CR: - state = sw_almost_done; - s->arg_end = p; - break; - case LF: - s->arg_end = p; - goto done; - default: - if (s->args.nelts <= 10) { - state = sw_argument; - s->arg_start = p; - break; - } - goto invalid; - } - break; - - case sw_argument: - switch (ch) { - case ' ': - case CR: - case LF: - arg = ngx_array_push(&s->args); - if (arg == NULL) { - return NGX_ERROR; - } - arg->len = p - s->arg_start; - arg->data = s->arg_start; - s->arg_start = NULL; - - switch (ch) { - case ' ': - state = sw_spaces_before_argument; - break; - case CR: - state = sw_almost_done; - break; - case LF: - goto done; - } - break; - - default: - break; - } - break; - - case sw_almost_done: - switch (ch) { - case LF: - goto done; - default: - goto invalid; - } - } - } - - s->buffer->pos = p; - s->state = state; - - return NGX_AGAIN; - -done: - - s->buffer->pos = p + 1; - - if (s->arg_start) { - arg = ngx_array_push(&s->args); - if (arg == NULL) { - return NGX_ERROR; - } - arg->len = s->arg_end - s->arg_start; - arg->data = s->arg_start; - s->arg_start = NULL; - } - - s->state = (s->command != NGX_SMTP_AUTH) ? sw_start : sw_argument; - - return NGX_OK; - -invalid: - - s->state = sw_invalid; - s->arg_start = NULL; - - /* skip invalid command till LF */ - - for (p = s->buffer->pos; p < s->buffer->last; p++) { - if (*p == LF) { - s->state = sw_start; - p++; - break; - } - } - - s->buffer->pos = p; - - return NGX_MAIL_PARSE_INVALID_COMMAND; -} - - -ngx_int_t -ngx_mail_auth_parse(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 == 0) { - return NGX_MAIL_PARSE_INVALID_COMMAND; - } - - arg = s->args.elts; - - if (arg[0].len == 5) { - - if (ngx_strncasecmp(arg[0].data, (u_char *) "LOGIN", 5) == 0) { - - if (s->args.nelts == 1) { - return NGX_MAIL_AUTH_LOGIN; - } - - if (s->args.nelts == 2) { - return NGX_MAIL_AUTH_LOGIN_USERNAME; - } - - return NGX_MAIL_PARSE_INVALID_COMMAND; - } - - if (ngx_strncasecmp(arg[0].data, (u_char *) "PLAIN", 5) == 0) { - - if (s->args.nelts == 1) { - return NGX_MAIL_AUTH_PLAIN; - } - - if (s->args.nelts == 2) { - return ngx_mail_auth_plain(s, c, 1); - } - } - - return NGX_MAIL_PARSE_INVALID_COMMAND; - } - - if (arg[0].len == 8) { - - if (ngx_strncasecmp(arg[0].data, (u_char *) "CRAM-MD5", 8) == 0) { - - if (s->args.nelts != 1) { - return NGX_MAIL_PARSE_INVALID_COMMAND; - } - - return NGX_MAIL_AUTH_CRAM_MD5; - } - - if (ngx_strncasecmp(arg[0].data, (u_char *) "EXTERNAL", 8) == 0) { - - if (s->args.nelts == 1) { - return NGX_MAIL_AUTH_EXTERNAL; - } - - if (s->args.nelts == 2) { - return ngx_mail_auth_external(s, c, 1); - } - } - - return NGX_MAIL_PARSE_INVALID_COMMAND; - } - - return NGX_MAIL_PARSE_INVALID_COMMAND; -} -- cgit 1.2.3-korg