add SAFE_ARTICLE_DELETE,

when using 'd' to delete an article,
do not truncate .DIR immediately but add an empty record into the same place.
this avoids many problems.
 (not complete yet)



git-svn-id: http://opensvn.csie.org/pttbbs/trunk/pttbbs@1407 63ad8ddf-47c3-0310-b6dd-a9e9d9715204

2 files changed, 25 insertions, 1 deletions

diff --git a/mbbsd/bbs.c b/mbbsd/bbs.c
index a0385552..659e6544 100644
--- a/mbbsd/bbs.c
+++ b/mbbsd/bbs.c
@@ -947,6 +947,11 @@ edit_post(int ent, fileheader_t * fhdr, char *direct)
     if( currmode & MODE_SELECT )
 	return DONOTHING;
 
+#ifdef SAFE_ARTICLE_DELETE
+    if( fhdr->filename[0] == '.' )
+	return DONOTHING;
+#endif
+
     setutmpmode(REEDIT);
     setdirpath(genbuf, direct, fhdr->filename);
     local_article = fhdr->filemode & FILE_LOCAL;
@@ -1833,7 +1838,13 @@ del_post(int ent, fileheader_t * fhdr, char *direct)
     getdata(1, 0, msg_del_ny, genbuf, 3, LCECHO);
     if (genbuf[0] == 'y') {
 	strlcpy(currfile, fhdr->filename, sizeof(currfile));
-	if (!delete_file(direct, sizeof(fileheader_t), ent, cmpfilename)) {
+	if(
+#ifdef SAFE_ARTICLE_DELETE
+	   !safe_article_delete(ent, fhdr, direct)
+#else
+	   !delete_file(direct, sizeof(fileheader_t), ent, cmpfilename)
+#endif
+	   ) {
 	    int num;
 	    if (currmode & MODE_SELECT) {
 		/* rocker.011018: 利用reference減低loading */
diff --git a/mbbsd/record.c b/mbbsd/record.c
index e4c2897f..c28a0c6d 100644
--- a/mbbsd/record.c
+++ b/mbbsd/record.c
@@ -400,6 +400,19 @@ int             delete_files(char *dirname, int (*filecheck) (), int record){
     return ans;
 }
 
+#ifdef SAFE_ARTICLE_DELETE
+int
+safe_article_delete(int ent, fileheader_t *fhdr, char *direct)
+{
+    fileheader_t newfhdr;
+    memcpy(&newfhdr, fhdr, sizeof(fileheader_t));
+    sprintf(newfhdr.title, "(本文已被刪除)");
+    strcpy(newfhdr.filename, ".deleted");
+    substitute_record(direct, &newfhdr, sizeof(newfhdr), ent);
+    return 0;
+}
+#endif
+
 int
 delete_file(char *dirname, int size, int ent, int (*filecheck) ())
 {