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/* 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;
}
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