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diff --git a/src/lib-mail/message-parser.c b/src/lib-mail/message-parser.c
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index 011dea9050..8baf622e59 100644
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--- a/src/lib-mail/message-parser.c
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+++ b/src/lib-mail/message-parser.c
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@@ -138,6 +138,7 @@ message_part_append(struct message_parser_ctx *ctx)
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struct message_part *parent = ctx->part;
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struct message_part *part;
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+ i_assert(!ctx->preparsed);
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i_assert(parent != NULL);
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i_assert((parent->flags & (MESSAGE_PART_FLAG_MULTIPART |
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MESSAGE_PART_FLAG_MESSAGE_RFC822)) != 0);
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@@ -171,12 +172,14 @@ static void message_part_finish(struct message_parser_ctx *ctx)
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{
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struct message_part **const *parent_next_partp;
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- i_assert(ctx->nested_parts_count > 0);
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- ctx->nested_parts_count--;
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+ if (!ctx->preparsed) {
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+ i_assert(ctx->nested_parts_count > 0);
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+ ctx->nested_parts_count--;
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- parent_next_partp = array_back(&ctx->next_part_stack);
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- array_pop_back(&ctx->next_part_stack);
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- ctx->next_part = *parent_next_partp;
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+ parent_next_partp = array_back(&ctx->next_part_stack);
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+ array_pop_back(&ctx->next_part_stack);
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+ ctx->next_part = *parent_next_partp;
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+ }
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message_size_add(&ctx->part->parent->body_size, &ctx->part->body_size);
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message_size_add(&ctx->part->parent->body_size, &ctx->part->header_size);
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diff --git a/src/lib-mail/test-message-parser.c b/src/lib-mail/test-message-parser.c
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index 13984f939e..a00f0d6200 100644
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--- a/src/lib-mail/test-message-parser.c
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+++ b/src/lib-mail/test-message-parser.c
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@@ -178,9 +178,10 @@ static void test_message_parser_small_blocks(void)
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static void test_message_parser_stop_early(void)
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{
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struct message_parser_ctx *parser;
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- struct istream *input;
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+ struct istream *input, *input2;
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struct message_part *parts;
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struct message_block block;
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+ const char *error;
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unsigned int i;
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pool_t pool;
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int ret;
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@@ -198,6 +199,24 @@ static void test_message_parser_stop_early(void)
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&block)) > 0) ;
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test_assert(ret == 0);
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message_parser_deinit(&parser, &parts;;
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+
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+ /* test preparsed - first re-parse everything with a stream
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+ that sees EOF at this position */
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+ input2 = i_stream_create_from_data(test_msg, i);
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+ parser = message_parser_init(pool, input2, &set_empty);
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+ while ((ret = message_parser_parse_next_block(parser,
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+ &block)) > 0) ;
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+ test_assert(ret == -1);
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+ message_parser_deinit(&parser, &parts;;
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+
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+ /* now parse from the parts */
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+ i_stream_seek(input2, 0);
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+ parser = message_parser_init_from_parts(parts, input2, &set_empty);
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+ while ((ret = message_parser_parse_next_block(parser,
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+ &block)) > 0) ;
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+ test_assert(ret == -1);
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+ test_assert(message_parser_deinit_from_parts(&parser, &parts, &error) == 0);
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+ i_stream_unref(&input2);
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}
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i_stream_unref(&input);
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