validate NAMESPACE response earlier
... and don't silently fail later on.
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1a707ab156
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03e25db3b8
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@ -837,33 +837,50 @@ static int parse_namespace_rsp_p2( imap_store_t *, list_t *, char * );
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static int parse_namespace_rsp_p3( imap_store_t *, list_t *, char * );
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static int
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parse_namespace_rsp_fail( void )
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parse_namespace_check( list_t *list )
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{
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if (!list)
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goto bad;
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if (list->val == NIL)
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return 0;
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if (list->val != LIST)
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goto bad;
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for (list = list->child; list; list = list->next) {
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if (list->val != LIST)
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goto bad;
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if (!is_atom( list->child ))
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goto bad;
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if (!is_atom( list->child->next ))
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goto bad;
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/* Namespace response extensions may follow here; we don't care. */
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}
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return 0;
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bad:
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error( "IMAP error: malformed NAMESPACE response\n" );
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return LIST_BAD;
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return -1;
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}
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static int
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parse_namespace_rsp( imap_store_t *ctx, list_t *list, char *s )
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{
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if (!(ctx->ns_personal = list))
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return parse_namespace_rsp_fail();
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if (parse_namespace_check( (ctx->ns_personal = list) ))
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return LIST_BAD;
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return parse_list( ctx, s, parse_namespace_rsp_p2 );
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}
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static int
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parse_namespace_rsp_p2( imap_store_t *ctx, list_t *list, char *s )
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{
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if (!(ctx->ns_other = list))
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return parse_namespace_rsp_fail();
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if (parse_namespace_check( (ctx->ns_other = list) ))
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return LIST_BAD;
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return parse_list( ctx, s, parse_namespace_rsp_p3 );
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}
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static int
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parse_namespace_rsp_p3( imap_store_t *ctx, list_t *list, char *s ATTR_UNUSED )
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{
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if (!(ctx->ns_shared = list))
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return parse_namespace_rsp_fail();
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if (parse_namespace_check( (ctx->ns_shared = list) ))
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return LIST_BAD;
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return LIST_OK;
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}
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@ -2142,10 +2159,8 @@ imap_open_store_namespace2( imap_store_t *ctx )
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ctx->prefix = nsp_1st_ns->val;
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if (!ctx->delimiter)
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ctx->delimiter = nfstrdup( nsp_1st_dl->val );
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imap_open_store_finalize( ctx );
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} else {
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imap_open_store_bail( ctx, FAIL_FINAL );
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}
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imap_open_store_finalize( ctx );
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}
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static void
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