mirror of
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6e92487f66
Closes GH-5887.
983 lines
28 KiB
C
983 lines
28 KiB
C
/*
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* PHP Sendmail for Windows.
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*
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* This file is rewritten specifically for PHPFI. Some functionality
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* has been removed (MIME and file attachments). This code was
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* modified from code based on code written by Jarle Aase.
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*
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* This class is based on the original code by Jarle Aase, see below:
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* wSendmail.cpp It has been striped of some functionality to match
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* the requirements of phpfi.
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*
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* Very simple SMTP Send-mail program for sending command-line level
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* emails and CGI-BIN form response for the Windows platform.
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*
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* The complete wSendmail package with source code can be located
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* from http://www.jgaa.com
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*
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*/
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#include "php.h" /*php specific */
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#include <stdio.h>
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#include <stdlib.h>
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#include <winsock2.h>
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#include "time.h"
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# include <Ws2tcpip.h>
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#include <string.h>
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#include <math.h>
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#include <malloc.h>
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#include <winbase.h>
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#include "sendmail.h"
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#include "php_ini.h"
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#include "inet.h"
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#include "php_win32_globals.h"
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#include "ext/pcre/php_pcre.h"
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#include "ext/standard/php_string.h"
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#include "ext/date/php_date.h"
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#define SENDMAIL_DEBUG 0
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/*enum
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{
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DO_CONNECT = WM_USER +1
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};
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*/
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/* '*error_message' has to be passed around from php_mail() */
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#define SMTP_ERROR_RESPONSE_SPEC "SMTP server response: %s"
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/* Convenient way to handle error messages from the SMTP server.
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response is ecalloc()d in Ack() itself and efree()d here
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because the content is in *error_message now */
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#define SMTP_ERROR_RESPONSE(response) { \
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if (response && error_message) { \
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*error_message = ecalloc(1, sizeof(SMTP_ERROR_RESPONSE_SPEC) + strlen(response)); \
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snprintf(*error_message, sizeof(SMTP_ERROR_RESPONSE_SPEC) + strlen(response), SMTP_ERROR_RESPONSE_SPEC, response); \
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efree(response); \
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} \
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}
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#define SMTP_SKIP_SPACE(str) { while (isspace(*str)) { str++; } }
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char seps[] = " ,\t\n";
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char *php_mailer = "PHP 7 WIN32";
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/* Error messages */
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static char *ErrorMessages[] =
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{
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{"Success"}, /* 0 */
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{"Bad arguments from form"}, /* 1 */
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{"Unable to open temporary mailfile for read"},
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{"Failed to Start Sockets"},
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{"Failed to Resolve Host"},
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{"Failed to obtain socket handle"}, /* 5 */
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{"Failed to connect to mailserver, verify your \"SMTP\" setting in php.ini"},
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{"Failed to Send"},
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{"Failed to Receive"},
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{"Server Error"},
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{"Failed to resolve the host IP name"}, /* 10 */
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{"Out of memory"},
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{"Unknown error"},
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{"Bad Message Contents"},
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{"Bad Message Subject"},
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{"Bad Message destination"}, /* 15 */
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{"Bad Message Return Path"},
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{"Bad Mail Host"},
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{"Bad Message File"},
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{"\"sendmail_from\" not set in php.ini or custom \"From:\" header missing"},
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{"Mailserver rejected our \"sendmail_from\" setting"}, /* 20 */
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{"Error while trimming mail header with PCRE, please file a bug report at http://bugs.php.net/"} /* 21 */
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};
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/* This pattern converts all single occurrences of \n (Unix)
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* without a leading \r to \r\n and all occurrences of \r (Mac)
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* without a trailing \n to \r\n
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* Thx to Nibbler from ircnet/#linuxger
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*/
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#define PHP_WIN32_MAIL_UNIFY_PATTERN "/(\r\n?)|\n/"
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#define PHP_WIN32_MAIL_UNIFY_REPLACE "\r\n"
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/* This pattern removes \r\n from the start of the string,
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* \r\n from the end of the string and also makes sure every line
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* is only wrapped with a single \r\n (thus reduces multiple
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* occurrences of \r\n between lines to a single \r\n) */
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#define PHP_WIN32_MAIL_RMVDBL_PATTERN "/^\r\n|(\r\n)+$/m"
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#define PHP_WIN32_MAIL_RMVDBL_REPLACE ""
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/* This pattern escapes \n. inside the message body. It prevents
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* premature end of message if \n.\n or \r\n.\r\n is encountered
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* and ensures that \n. sequences are properly displayed in the
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* message body. */
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#define PHP_WIN32_MAIL_DOT_PATTERN "\n."
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#define PHP_WIN32_MAIL_DOT_REPLACE "\n.."
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/* This function is meant to unify the headers passed to to mail()
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* This means, use PCRE to transform single occurrences of \n or \r in \r\n
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* As a second step we also eliminate all \r\n occurrences which are:
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* 1) At the start of the header
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* 2) At the end of the header
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* 3) Two or more occurrences in the header are removed so only one is left
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*
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* Returns NULL on error, or the new char* buffer on success.
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* You have to take care and efree() the buffer on your own.
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*/
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static zend_string *php_win32_mail_trim_header(const char *header)
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{
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zend_string *result, *result2;
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zend_string *replace;
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zend_string *regex;
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if (!header) {
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return NULL;
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}
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replace = zend_string_init(PHP_WIN32_MAIL_UNIFY_REPLACE, strlen(PHP_WIN32_MAIL_UNIFY_REPLACE), 0);
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regex = zend_string_init(PHP_WIN32_MAIL_UNIFY_PATTERN, sizeof(PHP_WIN32_MAIL_UNIFY_PATTERN)-1, 0);
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result = php_pcre_replace(regex,
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NULL, header, strlen(header),
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replace,
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-1,
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NULL);
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zend_string_release_ex(replace, 0);
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zend_string_release_ex(regex, 0);
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if (NULL == result) {
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return NULL;
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}
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replace = zend_string_init(PHP_WIN32_MAIL_RMVDBL_PATTERN, strlen(PHP_WIN32_MAIL_RMVDBL_PATTERN), 0);
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regex = zend_string_init(PHP_WIN32_MAIL_RMVDBL_PATTERN, sizeof(PHP_WIN32_MAIL_RMVDBL_PATTERN)-1, 0);
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result2 = php_pcre_replace(regex,
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result, ZSTR_VAL(result), ZSTR_LEN(result),
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replace,
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-1,
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NULL);
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zend_string_release_ex(replace, 0);
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zend_string_release_ex(regex, 0);
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zend_string_release_ex(result, 0);
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return result2;
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}
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/*********************************************************************
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// Name: TSendMail
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// Input: 1) host: Name of the mail host where the SMTP server resides
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// max accepted length of name = 256
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// 2) appname: Name of the application to use in the X-mailer
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// field of the message. if NULL is given the application
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// name is used as given by the GetCommandLine() function
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// max accespted length of name = 100
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// Output: 1) error: Returns the error code if something went wrong or
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// SUCCESS otherwise.
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//
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// See SendText() for additional args!
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//********************************************************************/
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PHPAPI int TSendMail(const char *host, int *error, char **error_message,
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const char *headers, const char *Subject, const char *mailTo, const char *data,
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char *mailCc, char *mailBcc, char *mailRPath)
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{
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int ret;
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char *RPath = NULL;
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zend_string *headers_lc = NULL, *headers_trim = NULL; /* headers_lc is only created if we've a header at all */
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const char *pos1 = NULL, *pos2 = NULL;
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if (host == NULL) {
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*error = BAD_MAIL_HOST;
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return FAILURE;
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} else if (strlen(host) >= HOST_NAME_LEN) {
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*error = BAD_MAIL_HOST;
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return FAILURE;
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} else {
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strcpy(PW32G(mail_host), host);
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}
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if (headers) {
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char *pos = NULL;
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/* Use PCRE to trim the header into the right format */
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if (NULL == (headers_trim = php_win32_mail_trim_header(headers))) {
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*error = W32_SM_PCRE_ERROR;
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return FAILURE;
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}
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/* Create a lowercased header for all the searches so we're finally case
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* insensitive when searching for a pattern. */
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headers_lc = zend_string_tolower(headers_trim);
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}
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/* Fall back to sendmail_from php.ini setting */
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if (mailRPath && *mailRPath) {
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RPath = estrdup(mailRPath);
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} else if (INI_STR("sendmail_from")) {
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RPath = estrdup(INI_STR("sendmail_from"));
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} else if (headers_lc) {
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int found = 0;
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const char *lookup = ZSTR_VAL(headers_lc);
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while (lookup) {
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pos1 = strstr(lookup, "from:");
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if (!pos1) {
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break;
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} else if (pos1 != ZSTR_VAL(headers_lc) && *(pos1-1) != '\n') {
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if (strlen(pos1) >= sizeof("from:")) {
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lookup = pos1 + sizeof("from:");
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continue;
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} else {
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break;
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}
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}
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found = 1;
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/* Real offset is memaddress from the original headers + difference of
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* string found in the lowercase headrs + 5 characters to jump over
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* the from: */
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pos1 = headers + (pos1 - lookup) + 5;
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if (NULL == (pos2 = strstr(pos1, "\r\n"))) {
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RPath = estrndup(pos1, strlen(pos1));
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} else {
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RPath = estrndup(pos1, pos2 - pos1);
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}
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break;
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}
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if (!found) {
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if (headers) {
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zend_string_release(headers_trim);
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zend_string_release(headers_lc);
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}
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*error = W32_SM_SENDMAIL_FROM_NOT_SET;
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return FAILURE;
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}
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}
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/* attempt to connect with mail host */
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*error = MailConnect();
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if (*error != 0) {
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if (RPath) {
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efree(RPath);
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}
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if (headers) {
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zend_string_release(headers_trim);
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zend_string_release(headers_lc);
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}
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/* 128 is safe here, the specifier in snprintf isn't longer than that */
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*error_message = ecalloc(1, HOST_NAME_LEN + 128);
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snprintf(*error_message, HOST_NAME_LEN + 128,
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"Failed to connect to mailserver at \"%s\" port " ZEND_ULONG_FMT ", verify your \"SMTP\" "
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"and \"smtp_port\" setting in php.ini or use ini_set()",
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PW32G(mail_host), !INI_INT("smtp_port") ? 25 : INI_INT("smtp_port"));
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return FAILURE;
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} else {
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ret = SendText(RPath, Subject, mailTo, mailCc, mailBcc, data, headers ? ZSTR_VAL(headers_trim) : NULL, headers ? ZSTR_VAL(headers_lc) : NULL, error_message);
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TSMClose();
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if (RPath) {
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efree(RPath);
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}
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if (headers) {
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zend_string_release(headers_trim);
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zend_string_release(headers_lc);
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}
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if (ret != SUCCESS) {
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*error = ret;
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return FAILURE;
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}
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return SUCCESS;
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}
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}
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//********************************************************************
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// Name: TSendMail::~TSendMail
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// Input:
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// Output:
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// Description: DESTRUCTOR
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// Author/Date: jcar 20/9/96
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// History:
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//********************************************************************/
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PHPAPI void TSMClose(void)
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{
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Post("QUIT\r\n");
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Ack(NULL);
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/* to guarantee that the cleanup is not made twice and
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compomise the rest of the application if sockets are used
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elesewhere
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*/
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shutdown(PW32G(mail_socket), 0);
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closesocket(PW32G(mail_socket));
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}
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/*********************************************************************
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// Name: char *GetSMErrorText
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// Input: Error index returned by the menber functions
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// Output: pointer to a string containing the error description
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// Description:
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// Author/Date: jcar 20/9/96
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// History:
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//*******************************************************************/
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PHPAPI char *GetSMErrorText(int index)
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{
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if (MIN_ERROR_INDEX <= index && index < MAX_ERROR_INDEX) {
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return (ErrorMessages[index]);
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} else {
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return (ErrorMessages[UNKNOWN_ERROR]);
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}
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}
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/*********************************************************************
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// Name: SendText
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// Input: 1) RPath: return path of the message
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// Is used to fill the "Return-Path" and the
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// "X-Sender" fields of the message.
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// 2) Subject: Subject field of the message. If NULL is given
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// the subject is set to "No Subject"
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// 3) mailTo: Destination address
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// 4) data: Null terminated string containing the data to be send.
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// 5,6) headers of the message. Note that the second
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// parameter, headers_lc, is actually a lowercased version of
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// headers. The should match exactly (in terms of length),
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// only differ in case
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// Output: Error code or SUCCESS
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// Description:
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// Author/Date: jcar 20/9/96
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// History:
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//*******************************************************************/
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static int SendText(char *RPath, const char *Subject, const char *mailTo, char *mailCc, char *mailBcc, const char *data,
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const char *headers, char *headers_lc, char **error_message)
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{
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int res;
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char *p;
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char *tempMailTo, *token;
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const char *pos1, *pos2;
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char *server_response = NULL;
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char *stripped_header = NULL;
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zend_string *data_cln;
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/* check for NULL parameters */
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if (data == NULL)
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return (BAD_MSG_CONTENTS);
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if (mailTo == NULL)
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return (BAD_MSG_DESTINATION);
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if (RPath == NULL)
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return (BAD_MSG_RPATH);
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/* simple checks for the mailto address */
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/* have ampersand ? */
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/* mfischer, 20020514: I commented this out because it really
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seems bogus. Only a username for example may still be a
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valid address at the destination system.
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if (strchr(mailTo, '@') == NULL)
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return (BAD_MSG_DESTINATION);
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*/
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snprintf(PW32G(mail_buffer), sizeof(PW32G(mail_buffer)), "HELO %s\r\n", PW32G(mail_local_host));
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/* in the beginning of the dialog */
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/* attempt reconnect if the first Post fail */
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if ((res = Post(PW32G(mail_buffer))) != SUCCESS) {
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int err = MailConnect();
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if (0 != err) {
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return (FAILED_TO_SEND);
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}
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if ((res = Post(PW32G(mail_buffer))) != SUCCESS) {
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return (res);
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}
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}
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if ((res = Ack(&server_response)) != SUCCESS) {
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SMTP_ERROR_RESPONSE(server_response);
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return (res);
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}
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SMTP_SKIP_SPACE(RPath);
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FormatEmailAddress(PW32G(mail_buffer), RPath, "MAIL FROM:<%s>\r\n");
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if ((res = Post(PW32G(mail_buffer))) != SUCCESS) {
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return (res);
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}
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if ((res = Ack(&server_response)) != SUCCESS) {
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SMTP_ERROR_RESPONSE(server_response);
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return W32_SM_SENDMAIL_FROM_MALFORMED;
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}
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tempMailTo = estrdup(mailTo);
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/* Send mail to all rcpt's */
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token = strtok(tempMailTo, ",");
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while (token != NULL)
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{
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SMTP_SKIP_SPACE(token);
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FormatEmailAddress(PW32G(mail_buffer), token, "RCPT TO:<%s>\r\n");
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if ((res = Post(PW32G(mail_buffer))) != SUCCESS) {
|
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efree(tempMailTo);
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return (res);
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}
|
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if ((res = Ack(&server_response)) != SUCCESS) {
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SMTP_ERROR_RESPONSE(server_response);
|
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efree(tempMailTo);
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return (res);
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}
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token = strtok(NULL, ",");
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}
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efree(tempMailTo);
|
|
|
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if (mailCc && *mailCc) {
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tempMailTo = estrdup(mailCc);
|
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/* Send mail to all rcpt's */
|
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token = strtok(tempMailTo, ",");
|
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while (token != NULL)
|
|
{
|
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SMTP_SKIP_SPACE(token);
|
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FormatEmailAddress(PW32G(mail_buffer), token, "RCPT TO:<%s>\r\n");
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if ((res = Post(PW32G(mail_buffer))) != SUCCESS) {
|
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efree(tempMailTo);
|
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return (res);
|
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}
|
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if ((res = Ack(&server_response)) != SUCCESS) {
|
|
SMTP_ERROR_RESPONSE(server_response);
|
|
efree(tempMailTo);
|
|
return (res);
|
|
}
|
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token = strtok(NULL, ",");
|
|
}
|
|
efree(tempMailTo);
|
|
}
|
|
/* Send mail to all Cc rcpt's */
|
|
else if (headers && (pos1 = strstr(headers_lc, "cc:")) && ((pos1 == headers_lc) || (*(pos1-1) == '\n'))) {
|
|
/* Real offset is memaddress from the original headers + difference of
|
|
* string found in the lowercase headrs + 3 characters to jump over
|
|
* the cc: */
|
|
pos1 = headers + (pos1 - headers_lc) + 3;
|
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if (NULL == (pos2 = strstr(pos1, "\r\n"))) {
|
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tempMailTo = estrndup(pos1, strlen(pos1));
|
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} else {
|
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tempMailTo = estrndup(pos1, pos2 - pos1);
|
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}
|
|
|
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token = strtok(tempMailTo, ",");
|
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while (token != NULL)
|
|
{
|
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SMTP_SKIP_SPACE(token);
|
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FormatEmailAddress(PW32G(mail_buffer), token, "RCPT TO:<%s>\r\n");
|
|
if ((res = Post(PW32G(mail_buffer))) != SUCCESS) {
|
|
efree(tempMailTo);
|
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return (res);
|
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}
|
|
if ((res = Ack(&server_response)) != SUCCESS) {
|
|
SMTP_ERROR_RESPONSE(server_response);
|
|
efree(tempMailTo);
|
|
return (res);
|
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}
|
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token = strtok(NULL, ",");
|
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}
|
|
efree(tempMailTo);
|
|
}
|
|
|
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/* Send mail to all Bcc rcpt's
|
|
This is basically a rip of the Cc code above.
|
|
Just don't forget to remove the Bcc: from the header afterwards. */
|
|
if (mailBcc && *mailBcc) {
|
|
tempMailTo = estrdup(mailBcc);
|
|
/* Send mail to all rcpt's */
|
|
token = strtok(tempMailTo, ",");
|
|
while (token != NULL)
|
|
{
|
|
SMTP_SKIP_SPACE(token);
|
|
FormatEmailAddress(PW32G(mail_buffer), token, "RCPT TO:<%s>\r\n");
|
|
if ((res = Post(PW32G(mail_buffer))) != SUCCESS) {
|
|
efree(tempMailTo);
|
|
return (res);
|
|
}
|
|
if ((res = Ack(&server_response)) != SUCCESS) {
|
|
SMTP_ERROR_RESPONSE(server_response);
|
|
efree(tempMailTo);
|
|
return (res);
|
|
}
|
|
token = strtok(NULL, ",");
|
|
}
|
|
efree(tempMailTo);
|
|
}
|
|
else if (headers) {
|
|
if ((pos1 = strstr(headers_lc, "bcc:")) && (pos1 == headers_lc || *(pos1-1) == '\n')) {
|
|
/* Real offset is memaddress from the original headers + difference of
|
|
* string found in the lowercase headrs + 4 characters to jump over
|
|
* the bcc: */
|
|
pos1 = headers + (pos1 - headers_lc) + 4;
|
|
if (NULL == (pos2 = strstr(pos1, "\r\n"))) {
|
|
tempMailTo = estrndup(pos1, strlen(pos1));
|
|
/* Later, when we remove the Bcc: out of the
|
|
header we know it was the last thing. */
|
|
pos2 = pos1;
|
|
} else {
|
|
tempMailTo = estrndup(pos1, pos2 - pos1);
|
|
}
|
|
|
|
token = strtok(tempMailTo, ",");
|
|
while (token != NULL)
|
|
{
|
|
SMTP_SKIP_SPACE(token);
|
|
FormatEmailAddress(PW32G(mail_buffer), token, "RCPT TO:<%s>\r\n");
|
|
if ((res = Post(PW32G(mail_buffer))) != SUCCESS) {
|
|
efree(tempMailTo);
|
|
return (res);
|
|
}
|
|
if ((res = Ack(&server_response)) != SUCCESS) {
|
|
SMTP_ERROR_RESPONSE(server_response);
|
|
efree(tempMailTo);
|
|
return (res);
|
|
}
|
|
token = strtok(NULL, ",");
|
|
}
|
|
efree(tempMailTo);
|
|
|
|
/* Now that we've identified that we've a Bcc list,
|
|
remove it from the current header. */
|
|
stripped_header = ecalloc(1, strlen(headers));
|
|
/* headers = point to string start of header
|
|
pos1 = pointer IN headers where the Bcc starts
|
|
'4' = Length of the characters 'bcc:'
|
|
Because we've added +4 above for parsing the Emails
|
|
we've to subtract them here. */
|
|
memcpy(stripped_header, headers, pos1 - headers - 4);
|
|
if (pos1 != pos2) {
|
|
/* if pos1 != pos2 , pos2 points to the rest of the headers.
|
|
Since pos1 != pos2 if "\r\n" was found, we know those characters
|
|
are there and so we jump over them (else we would generate a new header
|
|
which would look like "\r\n\r\n". */
|
|
memcpy(stripped_header + (pos1 - headers - 4), pos2 + 2, strlen(pos2) - 2);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Simplify the code that we create a copy of stripped_header no matter if
|
|
we actually strip something or not. So we've a single efree() later. */
|
|
if (headers && !stripped_header) {
|
|
stripped_header = estrndup(headers, strlen(headers));
|
|
}
|
|
|
|
if ((res = Post("DATA\r\n")) != SUCCESS) {
|
|
if (stripped_header) {
|
|
efree(stripped_header);
|
|
}
|
|
return (res);
|
|
}
|
|
if ((res = Ack(&server_response)) != SUCCESS) {
|
|
SMTP_ERROR_RESPONSE(server_response);
|
|
if (stripped_header) {
|
|
efree(stripped_header);
|
|
}
|
|
return (res);
|
|
}
|
|
|
|
/* send message header */
|
|
if (Subject == NULL) {
|
|
res = PostHeader(RPath, "No Subject", mailTo, stripped_header);
|
|
} else {
|
|
res = PostHeader(RPath, Subject, mailTo, stripped_header);
|
|
}
|
|
if (stripped_header) {
|
|
efree(stripped_header);
|
|
}
|
|
if (res != SUCCESS) {
|
|
return (res);
|
|
}
|
|
|
|
/* Escape \n. sequences
|
|
* We use php_str_to_str() and not php_str_replace_in_subject(), since the latter
|
|
* uses ZVAL as it's parameters */
|
|
data_cln = php_str_to_str(data, strlen(data), PHP_WIN32_MAIL_DOT_PATTERN, sizeof(PHP_WIN32_MAIL_DOT_PATTERN) - 1,
|
|
PHP_WIN32_MAIL_DOT_REPLACE, sizeof(PHP_WIN32_MAIL_DOT_REPLACE) - 1);
|
|
if (!data_cln) {
|
|
data_cln = ZSTR_EMPTY_ALLOC();
|
|
}
|
|
|
|
/* send message contents in 1024 chunks */
|
|
{
|
|
char c, *e2, *e = ZSTR_VAL(data_cln) + ZSTR_LEN(data_cln);
|
|
p = ZSTR_VAL(data_cln);
|
|
|
|
while (e - p > 1024) {
|
|
e2 = p + 1024;
|
|
c = *e2;
|
|
*e2 = '\0';
|
|
if ((res = Post(p)) != SUCCESS) {
|
|
zend_string_free(data_cln);
|
|
return(res);
|
|
}
|
|
*e2 = c;
|
|
p = e2;
|
|
}
|
|
if ((res = Post(p)) != SUCCESS) {
|
|
zend_string_free(data_cln);
|
|
return(res);
|
|
}
|
|
}
|
|
|
|
zend_string_free(data_cln);
|
|
|
|
/*send termination dot */
|
|
if ((res = Post("\r\n.\r\n")) != SUCCESS)
|
|
return (res);
|
|
if ((res = Ack(&server_response)) != SUCCESS) {
|
|
SMTP_ERROR_RESPONSE(server_response);
|
|
return (res);
|
|
}
|
|
|
|
return (SUCCESS);
|
|
}
|
|
|
|
static int addToHeader(char **header_buffer, const char *specifier, const char *string)
|
|
{
|
|
*header_buffer = erealloc(*header_buffer, strlen(*header_buffer) + strlen(specifier) + strlen(string) + 1);
|
|
sprintf(*header_buffer + strlen(*header_buffer), specifier, string);
|
|
return 1;
|
|
}
|
|
|
|
/*********************************************************************
|
|
// Name: PostHeader
|
|
// Input: 1) return path
|
|
// 2) Subject
|
|
// 3) destination address
|
|
// 4) headers
|
|
// Output: Error code or Success
|
|
// Description:
|
|
// Author/Date: jcar 20/9/96
|
|
// History:
|
|
//********************************************************************/
|
|
static int PostHeader(char *RPath, const char *Subject, const char *mailTo, char *xheaders)
|
|
{
|
|
/* Print message header according to RFC 822 */
|
|
/* Return-path, Received, Date, From, Subject, Sender, To, cc */
|
|
|
|
int res;
|
|
char *header_buffer;
|
|
char *headers_lc = NULL;
|
|
size_t i;
|
|
|
|
if (xheaders) {
|
|
size_t headers_lc_len;
|
|
|
|
headers_lc = estrdup(xheaders);
|
|
headers_lc_len = strlen(headers_lc);
|
|
|
|
for (i = 0; i < headers_lc_len; i++) {
|
|
headers_lc[i] = tolower(headers_lc[i]);
|
|
}
|
|
}
|
|
|
|
header_buffer = ecalloc(1, MAIL_BUFFER_SIZE);
|
|
|
|
if (!xheaders || !strstr(headers_lc, "date:")) {
|
|
time_t tNow = time(NULL);
|
|
zend_string *dt = php_format_date("r", 1, tNow, 1);
|
|
|
|
snprintf(header_buffer, MAIL_BUFFER_SIZE, "Date: %s\r\n", ZSTR_VAL(dt));
|
|
zend_string_free(dt);
|
|
}
|
|
|
|
if (!headers_lc || !strstr(headers_lc, "from:")) {
|
|
if (!addToHeader(&header_buffer, "From: %s\r\n", RPath)) {
|
|
goto PostHeader_outofmem;
|
|
}
|
|
}
|
|
if (!addToHeader(&header_buffer, "Subject: %s\r\n", Subject)) {
|
|
goto PostHeader_outofmem;
|
|
}
|
|
|
|
/* Only add the To: field from the $to parameter if isn't in the custom headers */
|
|
if ((headers_lc && (!strstr(headers_lc, "\r\nto:") && (strncmp(headers_lc, "to:", 3) != 0))) || !headers_lc) {
|
|
if (!addToHeader(&header_buffer, "To: %s\r\n", mailTo)) {
|
|
goto PostHeader_outofmem;
|
|
}
|
|
}
|
|
if (xheaders) {
|
|
if (!addToHeader(&header_buffer, "%s\r\n", xheaders)) {
|
|
goto PostHeader_outofmem;
|
|
}
|
|
}
|
|
|
|
if (headers_lc) {
|
|
efree(headers_lc);
|
|
}
|
|
if ((res = Post(header_buffer)) != SUCCESS) {
|
|
efree(header_buffer);
|
|
return (res);
|
|
}
|
|
efree(header_buffer);
|
|
|
|
if ((res = Post("\r\n")) != SUCCESS) {
|
|
return (res);
|
|
}
|
|
|
|
return (SUCCESS);
|
|
|
|
PostHeader_outofmem:
|
|
if (headers_lc) {
|
|
efree(headers_lc);
|
|
}
|
|
return OUT_OF_MEMORY;
|
|
}
|
|
|
|
|
|
|
|
/*********************************************************************
|
|
// Name: MailConnect
|
|
// Input: None
|
|
// Output: None
|
|
// Description: Connect to the mail host and receive the welcome message.
|
|
// Author/Date: jcar 20/9/96
|
|
// History:
|
|
//********************************************************************/
|
|
static int MailConnect()
|
|
{
|
|
|
|
int res, namelen;
|
|
short portnum;
|
|
struct hostent *ent;
|
|
IN_ADDR addr;
|
|
#ifdef HAVE_IPV6
|
|
IN6_ADDR addr6;
|
|
#endif
|
|
SOCKADDR_IN sock_in;
|
|
|
|
#if SENDMAIL_DEBUG
|
|
return 0;
|
|
#endif
|
|
|
|
/* Create Socket */
|
|
if ((PW32G(mail_socket) = socket(PF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET) {
|
|
return (FAILED_TO_OBTAIN_SOCKET_HANDLE);
|
|
}
|
|
|
|
/* Get our own host name */
|
|
if (gethostname(PW32G(mail_local_host), HOST_NAME_LEN)) {
|
|
closesocket(PW32G(mail_socket));
|
|
return (FAILED_TO_GET_HOSTNAME);
|
|
}
|
|
|
|
ent = gethostbyname(PW32G(mail_local_host));
|
|
|
|
if (!ent) {
|
|
closesocket(PW32G(mail_socket));
|
|
return (FAILED_TO_GET_HOSTNAME);
|
|
}
|
|
|
|
namelen = (int)strlen(ent->h_name);
|
|
|
|
#ifdef HAVE_IPV6
|
|
if (inet_pton(AF_INET, ent->h_name, &addr) == 1 || inet_pton(AF_INET6, ent->h_name, &addr6) == 1)
|
|
#else
|
|
if (inet_pton(AF_INET, ent->h_name, &addr) == 1)
|
|
#endif
|
|
{
|
|
if (namelen + 2 >= HOST_NAME_LEN) {
|
|
closesocket(PW32G(mail_socket));
|
|
return (FAILED_TO_GET_HOSTNAME);
|
|
}
|
|
|
|
strcpy(PW32G(mail_local_host), "[");
|
|
strcpy(PW32G(mail_local_host) + 1, ent->h_name);
|
|
strcpy(PW32G(mail_local_host) + namelen + 1, "]");
|
|
} else {
|
|
if (namelen >= HOST_NAME_LEN) {
|
|
closesocket(PW32G(mail_socket));
|
|
return (FAILED_TO_GET_HOSTNAME);
|
|
}
|
|
|
|
strcpy(PW32G(mail_local_host), ent->h_name);
|
|
}
|
|
|
|
/* Resolve the servers IP */
|
|
/*
|
|
if (!isdigit(PW32G(mail_host)[0])||!gethostbyname(PW32G(mail_host)))
|
|
{
|
|
return (FAILED_TO_RESOLVE_HOST);
|
|
}
|
|
*/
|
|
|
|
portnum = (short) INI_INT("smtp_port");
|
|
if (!portnum) {
|
|
portnum = 25;
|
|
}
|
|
|
|
/* Connect to server */
|
|
sock_in.sin_family = AF_INET;
|
|
sock_in.sin_port = htons(portnum);
|
|
sock_in.sin_addr.S_un.S_addr = GetAddr(PW32G(mail_host));
|
|
|
|
if (connect(PW32G(mail_socket), (LPSOCKADDR) & sock_in, sizeof(sock_in))) {
|
|
closesocket(PW32G(mail_socket));
|
|
return (FAILED_TO_CONNECT);
|
|
}
|
|
|
|
/* receive Server welcome message */
|
|
res = Ack(NULL);
|
|
return (res);
|
|
}
|
|
|
|
|
|
/*********************************************************************
|
|
// Name: Post
|
|
// Input:
|
|
// Output:
|
|
// Description:
|
|
// Author/Date: jcar 20/9/96
|
|
// History:
|
|
//********************************************************************/
|
|
static int Post(LPCSTR msg)
|
|
{
|
|
int len = (int)strlen(msg);
|
|
int slen;
|
|
int index = 0;
|
|
|
|
#if SENDMAIL_DEBUG
|
|
if (msg)
|
|
printf("POST: '%s'\n", msg);
|
|
return (SUCCESS);
|
|
#endif
|
|
|
|
while (len > 0) {
|
|
if ((slen = send(PW32G(mail_socket), msg + index, len, 0)) < 1)
|
|
return (FAILED_TO_SEND);
|
|
len -= slen;
|
|
index += slen;
|
|
}
|
|
return (SUCCESS);
|
|
}
|
|
|
|
|
|
|
|
/*********************************************************************
|
|
// Name: Ack
|
|
// Input:
|
|
// Output:
|
|
// Description:
|
|
// Get the response from the server. We only want to know if the
|
|
// last command was successful.
|
|
// Author/Date: jcar 20/9/96
|
|
// History:
|
|
//********************************************************************/
|
|
static int Ack(char **server_response)
|
|
{
|
|
ZEND_TLS char buf[MAIL_BUFFER_SIZE];
|
|
int rlen;
|
|
int Index = 0;
|
|
int Received = 0;
|
|
|
|
#if SENDMAIL_DEBUG
|
|
return (SUCCESS);
|
|
#endif
|
|
|
|
again:
|
|
|
|
if ((rlen = recv(PW32G(mail_socket), buf + Index, ((MAIL_BUFFER_SIZE) - 1) - Received, 0)) < 1) {
|
|
return (FAILED_TO_RECEIVE);
|
|
}
|
|
Received += rlen;
|
|
buf[Received] = 0;
|
|
/*err_msg fprintf(stderr,"Received: (%d bytes) %s", rlen, buf + Index); */
|
|
|
|
/* Check for newline */
|
|
Index += rlen;
|
|
|
|
/* SMTP RFC says \r\n is the only valid line ending, who are we to argue ;)
|
|
* The response code must contain at least 5 characters ex. 220\r\n */
|
|
if (Received < 5 || buf[Received - 1] != '\n' || buf[Received - 2] != '\r') {
|
|
goto again;
|
|
}
|
|
|
|
if (buf[0] > '3') {
|
|
/* If we've a valid pointer, return the SMTP server response so the error message contains more information */
|
|
if (server_response) {
|
|
int dec = 0;
|
|
/* See if we have something like \r, \n, \r\n or \n\r at the end of the message and chop it off */
|
|
if (Received > 2) {
|
|
if (buf[Received-1] == '\n' || buf[Received-1] == '\r') {
|
|
dec++;
|
|
if (buf[Received-2] == '\r' || buf[Received-2] == '\n') {
|
|
dec++;
|
|
}
|
|
}
|
|
|
|
}
|
|
*server_response = estrndup(buf, Received - dec);
|
|
}
|
|
return (SMTP_SERVER_ERROR);
|
|
}
|
|
|
|
return (SUCCESS);
|
|
}
|
|
|
|
|
|
/*********************************************************************
|
|
// Name: unsigned long GetAddr (LPSTR szHost)
|
|
// Input:
|
|
// Output:
|
|
// Description: Given a string, it will return an IP address.
|
|
// - first it tries to convert the string directly
|
|
// - if that fails, it tries o resolve it as a hostname
|
|
//
|
|
// WARNING: gethostbyname() is a blocking function
|
|
// Author/Date: jcar 20/9/96
|
|
// History:
|
|
//********************************************************************/
|
|
static unsigned long GetAddr(LPSTR szHost)
|
|
{
|
|
LPHOSTENT lpstHost;
|
|
u_long lAddr = INADDR_ANY;
|
|
|
|
/* check that we have a string */
|
|
if (*szHost) {
|
|
|
|
/* check for a dotted-IP address string */
|
|
lAddr = inet_addr(szHost);
|
|
|
|
/* If not an address, then try to resolve it as a hostname */
|
|
if ((lAddr == INADDR_NONE) && (strcmp(szHost, "255.255.255.255"))) {
|
|
|
|
lpstHost = gethostbyname(szHost);
|
|
if (lpstHost) { /* success */
|
|
lAddr = *((u_long FAR *) (lpstHost->h_addr));
|
|
} else {
|
|
lAddr = INADDR_ANY; /* failure */
|
|
}
|
|
}
|
|
}
|
|
return (lAddr);
|
|
} /* end GetAddr() */
|
|
|
|
|
|
/*********************************************************************
|
|
// Name: int FormatEmailAddress
|
|
// Input:
|
|
// Output:
|
|
// Description: Formats the email address to remove any content outside
|
|
// of the angle brackets < > as per RFC 2821.
|
|
//
|
|
// Returns the invalidly formatted mail address if the < > are
|
|
// unbalanced (the SMTP server should reject it if it's out of spec.)
|
|
//
|
|
// Author/Date: garretts 08/18/2009
|
|
// History:
|
|
//********************************************************************/
|
|
static int FormatEmailAddress(char* Buf, char* EmailAddress, char* FormatString) {
|
|
char *tmpAddress1, *tmpAddress2;
|
|
int result;
|
|
|
|
if( (tmpAddress1 = strchr(EmailAddress, '<')) && (tmpAddress2 = strchr(tmpAddress1, '>')) ) {
|
|
*tmpAddress2 = 0; // terminate the string temporarily.
|
|
result = snprintf(Buf, MAIL_BUFFER_SIZE, FormatString , tmpAddress1+1);
|
|
*tmpAddress2 = '>'; // put it back the way it was.
|
|
return result;
|
|
}
|
|
return snprintf(Buf, MAIL_BUFFER_SIZE , FormatString , EmailAddress );
|
|
} /* end FormatEmailAddress() */
|