int message_snippet_generate(struct istream *input, unsigned int max_snippet_chars, string_t *snippet) { struct message_parser_ctx *parser; struct message_part *parts; struct message_decoder_context *decoder; struct message_block raw_block, block; struct snippet_context ctx; pool_t pool; int ret; memset(&ctx, 0, sizeof(ctx)); pool = pool_alloconly_create("message snippet", 1024); ctx.snippet = snippet; ctx.chars_left = max_snippet_chars; parser = message_parser_init(pool_datastack_create(), input, 0, 0); decoder = message_decoder_init(NULL, 0); while ((ret = message_parser_parse_next_block(parser, &raw_block)) > 0) { if (!message_decoder_decode_next_block(decoder, &raw_block, &block)) continue; if (block.size == 0) { const char *ct; if (block.hdr != NULL) continue; /* end of headers - verify that we can use this Content-Type. we get here only once, because we always handle only one non-multipart MIME part. */ ct = message_decoder_current_content_type(decoder); if (ct == NULL) /* text/plain */ ; else if (mail_html2text_content_type_match(ct)) { ctx.html2text = mail_html2text_init(MAIL_HTML2TEXT_FLAG_SKIP_QUOTED); ctx.plain_output = buffer_create_dynamic(pool, 1024); } else if (strncasecmp(ct, "text/", 5) != 0) break; continue; } if (!snippet_generate(&ctx, block.data, block.size)) break; } i_assert(ret != 0); message_decoder_deinit(&decoder); message_parser_deinit(&parser, &parts); if (ctx.html2text != NULL) mail_html2text_deinit(&ctx.html2text); pool_unref(&pool); return input->stream_errno == 0 ? 0 : -1; }
struct message_search_context * message_search_init(const char *normalized_key_utf8, normalizer_func_t *normalizer, enum message_search_flags flags) { struct message_search_context *ctx; i_assert(*normalized_key_utf8 != '\0'); ctx = i_new(struct message_search_context, 1); ctx->flags = flags; ctx->decoder = message_decoder_init(normalizer, 0); ctx->str_find_ctx = str_find_init(default_pool, normalized_key_utf8); return ctx; }