--- /dev/null
+/* $Cambridge: exim/src/src/spool_mbox.c,v 1.1.2.1 2004/11/26 09:13:34 tom Exp $ */
+
+/*************************************************
+* Exim - an Internet mail transport agent *
+*************************************************/
+
+/* This file is part of the exiscan-acl content scanner
+patch. It is NOT part of the standard exim distribution. */
+
+/* Copyright (c) Tom Kistner <tom@duncanthrax.net> 2003-???? */
+/* License: GPL */
+
+/* Code for setting up a MBOX style spool file inside a /scan/<msgid>
+sub directory of exim's spool directory. */
+
+#include "exim.h"
+
+/* externals, we must reset them on unspooling */
+extern int demime_ok;
+extern int malware_ok;
+extern int spam_ok;
+extern struct file_extension *file_extensions;
+
+int spool_mbox_ok = 0;
+uschar spooled_message_id[17];
+
+/* returns a pointer to the FILE, and puts the size in bytes into mbox_file_size */
+
+FILE *spool_mbox(unsigned long long *mbox_file_size) {
+ uschar mbox_path[1024];
+ uschar message_subdir[2];
+ uschar data_buffer[65535];
+ FILE *mbox_file;
+ FILE *data_file = NULL;
+ header_line *my_headerlist;
+ struct stat statbuf;
+ int i,j;
+
+ /*
+ uschar *received;
+ uschar *timestamp;
+ */
+
+ if (!spool_mbox_ok) {
+ /* create scan directory, if not present */
+ if (!directory_make(spool_directory, US "scan", 0750, FALSE)) {
+ debug_printf("unable to create directory: %s/scan\n", spool_directory);
+ return NULL;
+ };
+
+ /* create temp directory inside scan dir */
+ snprintf(CS mbox_path, 1024, "%s/scan/%s", spool_directory, message_id);
+ if (!directory_make(NULL, mbox_path, 0750, FALSE)) {
+ debug_printf("unable to create directory: %s/scan/%s\n", spool_directory, message_id);
+ return NULL;
+ };
+
+ /* open [message_id].eml file for writing */
+ snprintf(CS mbox_path, 1024, "%s/scan/%s/%s.eml", spool_directory, message_id, message_id);
+ mbox_file = Ufopen(mbox_path,"w");
+
+ if (mbox_file == NULL) {
+ debug_printf("unable to open file for writing: %s\n", mbox_path);
+ return NULL;
+ };
+
+ /* Generate a preliminary Received: header and put it in the file.
+ We need to do this so SA can do DNS list checks */
+
+ /* removed for 4.34
+
+ timestamp = expand_string(US"${tod_full}");
+ received = expand_string(received_header_text);
+ if (received != NULL) {
+ uschar *my_received;
+ if (received[0] == 0) {
+ my_received = string_sprintf("Received: ; %s\n", timestamp);
+ }
+ else {
+ my_received = string_sprintf("%s; %s\n", received, timestamp);
+ }
+ i = fwrite(my_received, 1, Ustrlen(my_received), mbox_file);
+ if (i != Ustrlen(my_received)) {
+ debug_printf("error/short write on writing in: %s", mbox_path);
+ fclose(mbox_file);
+ return NULL;
+ };
+ };
+
+ */
+
+ /* write all header lines to mbox file */
+ my_headerlist = header_list;
+ while (my_headerlist != NULL) {
+
+ /* skip deleted headers */
+ if (my_headerlist->type == '*') {
+ my_headerlist = my_headerlist->next;
+ continue;
+ };
+
+ i = fwrite(my_headerlist->text, 1, my_headerlist->slen, mbox_file);
+ if (i != my_headerlist->slen) {
+ debug_printf("error/short write on writing in: %s", mbox_path);
+ fclose(mbox_file);
+ return NULL;
+ };
+
+ my_headerlist = my_headerlist->next;
+ };
+
+ /* copy body file */
+ message_subdir[1] = '\0';
+ for (i = 0; i < 2; i++) {
+ message_subdir[0] = (split_spool_directory == (i == 0))? message_id[5] : 0;
+ sprintf(CS mbox_path, "%s/input/%s/%s-D", spool_directory, message_subdir, message_id);
+ data_file = Ufopen(mbox_path,"r");
+ if (data_file != NULL)
+ break;
+ };
+
+ fread(data_buffer, 1, 18, data_file);
+
+ do {
+ j = fread(data_buffer, 1, sizeof(data_buffer), data_file);
+ if (j > 0) {
+ i = fwrite(data_buffer, 1, j, mbox_file);
+ if (i != j) {
+ debug_printf("error/short write on writing in: %s", mbox_path);
+ fclose(mbox_file);
+ fclose(data_file);
+ return NULL;
+ };
+ };
+ } while (j > 0);
+
+ fclose(data_file);
+ fclose(mbox_file);
+ Ustrcpy(spooled_message_id, message_id);
+ spool_mbox_ok = 1;
+ };
+
+ snprintf(CS mbox_path, 1024, "%s/scan/%s/%s.eml", spool_directory, message_id, message_id);
+
+ /* get the size of the mbox message */
+ stat(CS mbox_path, &statbuf);
+ *mbox_file_size = statbuf.st_size;
+
+ /* open [message_id].eml file for reading */
+ mbox_file = Ufopen(mbox_path,"r");
+
+ return mbox_file;
+}
+
+/* remove mbox spool file, demimed files and temp directory */
+void unspool_mbox(void) {
+
+ /* reset all exiscan state variables */
+ demime_ok = 0;
+ demime_errorlevel = 0;
+ demime_reason = NULL;
+ file_extensions = NULL;
+ spam_ok = 0;
+ malware_ok = 0;
+
+ if (spool_mbox_ok) {
+
+ spool_mbox_ok = 0;
+
+ if (!no_mbox_unspool) {
+ uschar mbox_path[1024];
+ uschar file_path[1024];
+ int n;
+ struct dirent *entry;
+ DIR *tempdir;
+
+ snprintf(CS mbox_path, 1024, "%s/scan/%s", spool_directory, spooled_message_id);
+
+ tempdir = opendir(CS mbox_path);
+ /* loop thru dir & delete entries */
+ n = 0;
+ do {
+ entry = readdir(tempdir);
+ if (entry == NULL) break;
+ snprintf(CS file_path, 1024,"%s/scan/%s/%s", spool_directory, spooled_message_id, entry->d_name);
+ if ( (Ustrcmp(entry->d_name,"..") != 0) && (Ustrcmp(entry->d_name,".") != 0) ) {
+ debug_printf("unspool_mbox(): unlinking '%s'\n", file_path);
+ n = unlink(CS file_path);
+ };
+ } while (n > -1);
+
+ closedir(tempdir);
+
+ /* remove directory */
+ n = rmdir(CS mbox_path);
+ };
+ };
+}
git://git.exim.org / users / jgh / exim.git / blobdiff