Adding upstream version 1:2.3.19.1+dfsg1.upstream/1%2.3.19.1+dfsg1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 173 insertions, 0 deletions

diff --git a/src/lib-storage/mail-search-mime-build.c b/src/lib-storage/mail-search-mime-build.c
new file mode 100644
index 0000000..cdec68f
--- /dev/null
+++ b/src/lib-storage/mail-search-mime-build.c
@@ -0,0 +1,173 @@
+/* Copyright (c) 2016-2018 Dovecot authors, see the included COPYING file */
+
+#include "lib.h"
+#include "str.h"
+#include "charset-utf8.h"
+#include "mail-storage-private.h"
+#include "mail-search-parser.h"
+#include "mail-search-mime-register.h"
+#include "mail-search-mime-build.h"
+
+static int mail_search_mime_build_list(struct mail_search_mime_build_context *ctx,
+				  struct mail_search_mime_arg **arg_r);
+
+struct mail_search_mime_arg *
+mail_search_mime_build_new(struct mail_search_mime_build_context *ctx,
+		      enum mail_search_mime_arg_type type)
+{
+	struct mail_search_mime_arg *arg;
+
+	arg = p_new(ctx->ctx->pool, struct mail_search_mime_arg, 1);
+	arg->type = type;
+	return arg;
+}
+
+struct mail_search_mime_arg *
+mail_search_mime_build_str(struct mail_search_mime_build_context *ctx,
+		      enum mail_search_mime_arg_type type)
+{
+	struct mail_search_mime_arg *sarg;
+	const char *value;
+
+	sarg = mail_search_mime_build_new(ctx, type);
+	if (mail_search_parse_string(ctx->ctx->parser, &value) < 0)
+		return NULL;
+	sarg->value.str = p_strdup(ctx->ctx->pool, value);
+	return sarg;
+}
+
+static int
+mail_search_mime_build_key_int(struct mail_search_mime_build_context *ctx,
+			  struct mail_search_mime_arg *parent,
+			  struct mail_search_mime_arg **arg_r)
+{
+	struct mail_search_mime_arg *sarg;
+	struct mail_search_mime_arg *old_parent = ctx->parent;
+	const char *key;
+	const struct mail_search_mime_register_arg *reg_arg;
+	int ret;
+
+	ctx->parent = parent;
+
+	if ((ret = mail_search_parse_key(ctx->ctx->parser, &key)) <= 0)
+		return ret;
+
+	if (strcmp(key, MAIL_SEARCH_PARSER_KEY_LIST) == 0) {
+		if (mail_search_mime_build_list(ctx, &sarg) < 0)
+			return -1;
+		if (sarg->value.subargs == NULL) {
+			ctx->ctx->_error = "No MIMEPART keys inside list";
+			return -1;
+		}
+
+		ctx->parent = old_parent;
+		*arg_r = sarg;
+		return 1;
+	}
+	key = t_str_ucase(key);
+
+	reg_arg = mail_search_mime_register_find(key);
+	if (reg_arg != NULL)
+		sarg = reg_arg->build(ctx);
+	else {
+		sarg = NULL;
+		ctx->ctx->_error = p_strconcat
+			(ctx->ctx->pool, "Unknown MIMEPART key ", key, NULL);
+	}
+
+	ctx->parent = old_parent;
+	*arg_r = sarg;
+	return sarg == NULL ? -1 : 1;
+}
+
+int mail_search_mime_build_key(struct mail_search_mime_build_context *ctx,
+			  struct mail_search_mime_arg *parent,
+			  struct mail_search_mime_arg **arg_r)
+{
+	int ret;
+
+	ret = mail_search_mime_build_key_int(ctx, parent, arg_r);
+	if (ret <= 0) {
+		if (ret == 0)
+			ctx->ctx->_error = "Missing MIMEPART key";
+		return -1;
+	}
+	return 0;
+}
+
+static int mail_search_mime_build_list(struct mail_search_mime_build_context *ctx,
+				  struct mail_search_mime_arg **arg_r)
+{
+	struct mail_search_mime_arg *sarg, **subargs;
+	enum mail_search_mime_arg_type cur_type = SEARCH_MIME_SUB;
+	int ret;
+
+	sarg = p_new(ctx->ctx->pool, struct mail_search_mime_arg, 1);
+	sarg->type = cur_type;
+
+	subargs = &sarg->value.subargs;
+	while ((ret = mail_search_mime_build_key_int(ctx, sarg, subargs)) > 0) {
+		if (cur_type == sarg->type) {
+			/* expected type */
+		} else if (cur_type == SEARCH_MIME_SUB) {
+			/* type changed. everything in this list must now
+			   belong to this type. */
+			cur_type = sarg->type;
+		} else {
+			ctx->ctx->_error =
+				"Use parenthesis when mixing ANDs and ORs";
+			return -1;
+		}
+		subargs = &(*subargs)->next;
+		sarg->type = SEARCH_MIME_SUB;
+	}
+	if (ret < 0)
+		return -1;
+	sarg->type = cur_type;
+	*arg_r = sarg;
+	return 0;
+}
+
+int mail_search_mime_build(struct mail_search_build_context *bctx,
+		      struct mail_search_mime_part **mpart_r)
+{
+  struct mail_search_mime_build_context ctx;
+	struct mail_search_mime_part *mpart;
+	struct mail_search_mime_arg *root;
+	int ret;
+
+	*mpart_r = NULL;
+
+	i_zero(&ctx);
+	ctx.ctx = bctx;
+	ctx.mime_part = mpart =
+		p_new(bctx->pool, struct mail_search_mime_part, 1);
+
+	if ((ret=mail_search_mime_build_key(&ctx, NULL, &root)) < 0)
+		return ret;
+
+	if (root->type == SEARCH_MIME_SUB && !root->match_not) {
+		/* simple SUB root */
+		mpart->args = root->value.subargs;
+	} else {
+		mpart->args = root;
+	}
+
+	*mpart_r = mpart;
+	return 0;
+}
+
+struct mail_search_mime_arg *
+mail_search_mime_build_add(pool_t pool,
+		      struct mail_search_mime_part *mpart,
+		      enum mail_search_mime_arg_type type)
+{
+	struct mail_search_mime_arg *arg;
+
+	arg = p_new(pool, struct mail_search_mime_arg, 1);
+	arg->type = type;
+
+	arg->next = mpart->args;
+	mpart->args = arg;
+	return arg;
+}