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@@ -160,23 +160,39 @@ lua_trie_create (lua_State *L) |
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return 1; |
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} |
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#define PUSH_TRIE_MATCH(L, start, end, report_start) do { \ |
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if (report_start) { \ |
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lua_createtable (L, 2, 0); \ |
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lua_pushinteger (L, (start)); \ |
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lua_rawseti (L, -2, 1); \ |
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lua_pushinteger (L, (end)); \ |
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lua_rawseti (L, -2, 2); \ |
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} \ |
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else { \ |
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lua_pushinteger (L, (end)); \ |
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} \ |
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} while(0) |
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/* Normal callback type */ |
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static gint |
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lua_trie_callback (struct rspamd_multipattern *mp, |
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guint strnum, |
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gint match_start, |
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gint textpos, |
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const gchar *text, |
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gsize len, |
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void *context) |
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lua_trie_lua_cb_callback (struct rspamd_multipattern *mp, |
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guint strnum, |
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gint match_start, |
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gint textpos, |
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const gchar *text, |
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gsize len, |
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void *context) |
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{ |
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lua_State *L = context; |
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gint ret; |
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gboolean report_start = lua_toboolean (L, -1); |
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/* Function */ |
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lua_pushvalue (L, 3); |
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lua_pushinteger (L, strnum + 1); |
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lua_pushinteger (L, textpos); |
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PUSH_TRIE_MATCH (L, match_start, textpos, report_start); |
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if (lua_pcall (L, 2, 1, 0) != 0) { |
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msg_info ("call to trie callback has failed: %s", |
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@@ -204,13 +220,14 @@ lua_trie_table_callback (struct rspamd_multipattern *mp, |
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{ |
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lua_State *L = context; |
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gint report_start = lua_toboolean (L, -2); |
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/* Set table, indexed by pattern number */ |
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lua_rawgeti (L, -1, strnum + 1); |
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if (lua_istable (L, -1)) { |
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/* Already have table, add offset */ |
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gsize last = rspamd_lua_table_size (L, -1); |
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lua_pushinteger (L, textpos); |
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PUSH_TRIE_MATCH (L, match_start, textpos, report_start); |
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lua_rawseti (L, -2, last + 1); |
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/* Remove table from the stack */ |
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lua_pop (L, 1); |
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@@ -220,7 +237,7 @@ lua_trie_table_callback (struct rspamd_multipattern *mp, |
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lua_pop (L, 1); |
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/* New table */ |
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lua_newtable (L); |
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lua_pushinteger (L, textpos); |
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PUSH_TRIE_MATCH (L, match_start, textpos, report_start); |
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lua_rawseti (L, -2, 1); |
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lua_rawseti (L, -2, strnum + 1); |
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} |
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@@ -247,10 +264,11 @@ lua_trie_search_str (lua_State *L, struct rspamd_multipattern *trie, |
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} |
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/*** |
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* @method trie:match(input, [cb]) |
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* @method trie:match(input, [cb][, report_start]) |
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* Search for patterns in `input` invoking `cb` optionally ignoring case |
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* @param {table or string} input one or several (if `input` is an array) strings of input text |
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* @param {function} cb callback called on each pattern match in form `function (idx, pos)` where `idx` is a numeric index of pattern (starting from 1) and `pos` is a numeric offset where the pattern ends |
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* @param {boolean} report_start report both start and end offset when matching patterns |
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* @return {boolean} `true` if any pattern has been found (`cb` might be called multiple times however). If `cb` is not defined then it returns a table of match positions indexed by pattern number |
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*/ |
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static gint |
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@@ -260,16 +278,29 @@ lua_trie_match (lua_State *L) |
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struct rspamd_multipattern *trie = lua_check_trie (L, 1); |
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const gchar *text; |
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gsize len; |
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gboolean found = FALSE; |
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gboolean found = FALSE, report_start = FALSE; |
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struct rspamd_lua_text *t; |
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rspamd_multipattern_cb_t cb = lua_trie_callback; |
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rspamd_multipattern_cb_t cb = lua_trie_lua_cb_callback; |
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gint old_top = lua_gettop (L); |
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if (trie) { |
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if (lua_type (L, 3) != LUA_TFUNCTION) { |
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if (lua_isboolean (L, 3)) { |
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report_start = lua_toboolean (L, 3); |
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} |
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lua_pushboolean (L, report_start); |
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/* Table like match */ |
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lua_newtable (L); |
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cb = lua_trie_table_callback; |
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} |
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else { |
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if (lua_isboolean (L, 4)) { |
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report_start = lua_toboolean (L, 4); |
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} |
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lua_pushboolean (L, report_start); |
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} |
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if (lua_type (L, 2) == LUA_TTABLE) { |
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lua_pushvalue (L, 2); |
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@@ -294,8 +325,6 @@ lua_trie_match (lua_State *L) |
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} |
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lua_pop (L, 1); |
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} |
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lua_pop (L, 1); /* table */ |
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} |
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else if (lua_type (L, 2) == LUA_TSTRING) { |
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text = lua_tolstring (L, 2, &len); |
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@@ -314,8 +343,12 @@ lua_trie_match (lua_State *L) |
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} |
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if (lua_type (L, 3) == LUA_TFUNCTION) { |
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lua_settop (L, old_top); |
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lua_pushboolean (L, found); |
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} |
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else { |
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lua_remove (L, -2); |
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} |
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return 1; |
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} |
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@@ -338,7 +371,7 @@ lua_trie_search_mime (lua_State *L) |
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const gchar *text; |
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gsize len, i; |
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gboolean found = FALSE; |
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rspamd_multipattern_cb_t cb = lua_trie_callback; |
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rspamd_multipattern_cb_t cb = lua_trie_lua_cb_callback; |
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if (trie && task) { |
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PTR_ARRAY_FOREACH (MESSAGE_FIELD (task, text_parts), i, part) { |
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@@ -379,7 +412,7 @@ lua_trie_search_rawmsg (lua_State *L) |
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text = task->msg.begin; |
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len = task->msg.len; |
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if (lua_trie_search_str (L, trie, text, len, lua_trie_callback) != 0) { |
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if (lua_trie_search_str (L, trie, text, len, lua_trie_lua_cb_callback) != 0) { |
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found = TRUE; |
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} |
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} |
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@@ -417,7 +450,7 @@ lua_trie_search_rawbody (lua_State *L) |
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len = task->msg.len; |
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} |
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if (lua_trie_search_str (L, trie, text, len, lua_trie_callback) != 0) { |
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if (lua_trie_search_str (L, trie, text, len, lua_trie_lua_cb_callback) != 0) { |
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found = TRUE; |
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} |
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} |