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Allow requirepass config to clear the password (#7899)

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This is a compatibility issue with redis 5.0 that was introduced by ACL.
Before this commit, setting requirepass to an empty string will result
in a server that needs an empty AUTH, unlike redis 5.0 which would
accept connections without an AUTH.
This commit is contained in:
Oran Agra 2020-10-14 09:38:47 +03:00 committed by GitHub
parent 37fd3d40ae
commit 19418b6b28
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1 changed files with 18 additions and 8 deletions
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14
src/config.c
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@ -495,11 +495,16 @@ void loadServerConfigFromString(char *config) {
* additionally is to remember the cleartext password in this
* case, for backward compatibility with Redis <= 5. */
ACLSetUser(DefaultUser,"resetpass",-1);
sdsfree(server.requirepass);
server.requirepass = NULL;
if (sdslen(argv[1])) {
sds aclop = sdscatprintf(sdsempty(),">%s",argv[1]);
ACLSetUser(DefaultUser,aclop,sdslen(aclop));
sdsfree(aclop);
sdsfree(server.requirepass);
server.requirepass = sdsnew(argv[1]);
} else {
ACLSetUser(DefaultUser,"nopass",-1);
}
} else if (!strcasecmp(argv[0],"list-max-ziplist-entries") && argc == 2){
/* DEAD OPTION */
} else if (!strcasecmp(argv[0],"list-max-ziplist-value") && argc == 2) {
@ -717,11 +722,16 @@ void configSetCommand(client *c) {
* additionally is to remember the cleartext password in this
* case, for backward compatibility with Redis <= 5. */
ACLSetUser(DefaultUser,"resetpass",-1);
sdsfree(server.requirepass);
server.requirepass = NULL;
if (sdslen(o->ptr)) {
sds aclop = sdscatprintf(sdsempty(),">%s",(char*)o->ptr);
ACLSetUser(DefaultUser,aclop,sdslen(aclop));
sdsfree(aclop);
sdsfree(server.requirepass);
server.requirepass = sdsnew(o->ptr);
} else {
ACLSetUser(DefaultUser,"nopass",-1);
}
} config_set_special_field("save") {
int vlen, j;
sds *v = sdssplitlen(o->ptr,sdslen(o->ptr)," ",1,&vlen);