mirror of
https://github.com/TrinityCore/TrinityCore.git
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Core/Chat: move chat link validation code into separate classes and improve some validation logic
Core/Misc: fix non-pch build
This commit is contained in:
Azazel
@@ -34,37 +34,7 @@
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#include "UpdateMask.h"
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#include "SpellMgr.h"
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#include "ScriptMgr.h"
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#ifdef TRINITY_DEBUG
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#define LOG(...) sLog->outDebug(LOG_FILTER_CHATSYS, __VA_ARGS__);
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#else
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#define LOG(...)
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#endif
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// Supported shift-links (client generated and server side)
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// |color|Hachievement:achievement_id:player_guid:0:0:0:0:0:0:0:0|h[name]|h|r
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// - client, item icon shift click, not used in server currently
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// |color|Harea:area_id|h[name]|h|r
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// |color|Hcreature:creature_guid|h[name]|h|r
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// |color|Hcreature_entry:creature_id|h[name]|h|r
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// |color|Henchant:recipe_spell_id|h[prof_name: recipe_name]|h|r - client, at shift click in recipes list dialog
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// |color|Hgameevent:id|h[name]|h|r
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// |color|Hgameobject:go_guid|h[name]|h|r
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// |color|Hgameobject_entry:go_id|h[name]|h|r
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// |color|Hglyph:glyph_slot_id:glyph_prop_id|h[%s]|h|r - client, at shift click in glyphs dialog, GlyphSlot.dbc, GlyphProperties.dbc
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// |color|Hitem:item_id:perm_ench_id:gem1:gem2:gem3:0:0:0:0:reporter_level|h[name]|h|r
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// - client, item icon shift click
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// |color|Hitemset:itemset_id|h[name]|h|r
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// |color|Hplayer:name|h[name]|h|r - client, in some messages, at click copy only name instead link
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// |color|Hquest:quest_id:quest_level|h[name]|h|r - client, quest list name shift-click
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// |color|Hskill:skill_id|h[name]|h|r
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// |color|Hspell:spell_id|h[name]|h|r - client, spellbook spell icon shift-click
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// |color|Htalent:talent_id,rank|h[name]|h|r - client, talent icon shift-click
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// |color|Htaxinode:id|h[name]|h|r
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// |color|Htele:id|h[name]|h|r
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// |color|Htitle:id|h[name]|h|r
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// |color|Htrade:spell_id:cur_value:max_value:unk3int:unk3str|h[name]|h|r - client, spellbook profession icon shift-click
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#include "ChatLink.h"
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bool ChatHandler::load_command_table = true;
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@@ -850,47 +820,10 @@ int ChatHandler::ParseCommands(const char* text)
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return 1;
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}
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inline uint32 ChatHandler::_ReadUInt32(std::istringstream& reader) const
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{
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uint32 res = 0;
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char c = reader.peek();
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while (c >='0' && c <= '9')
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{
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reader.ignore(1);
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res *= 10;
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res += c - '0';
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c = reader.peek();
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}
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return res;
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}
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inline int32 ChatHandler::_ReadInt32(std::istringstream& reader) const
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{
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int32 res = 0;
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bool isNegative = false;
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char c = reader.peek();
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while ((c >= '0' && c <= '9') || c == '-')
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{
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if (c >='0' && c <= '9')
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{
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res *= 10;
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res += c - '0';
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}
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else if (c == '-')
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isNegative = true;
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reader.ignore(1);
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c = reader.peek();
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}
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if (isNegative)
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res = -res;
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return res;
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}
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bool ChatHandler::isValidChatMessage(const char* message)
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{
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/*
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valid examples:
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Valid examples:
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|cffa335ee|Hitem:812:0:0:0:0:0:0:0:70|h[Glowing Brightwood Staff]|h|r
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|cff808080|Hquest:2278:47|h[The Platinum Discs]|h|r
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|cffffd000|Htrade:4037:1:150:1:6AAAAAAAAAAAAAAAAAAAAAAOAADAAAAAAAAAAAAAAAAIAAAAAAAAA|h[Engineering]|h|r
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@@ -906,12 +839,11 @@ valid examples:
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if (strlen(message) > 255)
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return false;
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const char validSequence[6] = "cHhhr";
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const char* validSequenceIterator = validSequence;
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// more simple checks
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if (sWorld->getIntConfig(CONFIG_CHAT_STRICT_LINK_CHECKING_SEVERITY) < 3)
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{
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const char validSequence[6] = "cHhhr";
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const char* validSequenceIterator = validSequence;
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const std::string validCommands = "cHhr|";
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while (*message)
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@@ -933,7 +865,7 @@ valid examples:
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{
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if (commandChar == *validSequenceIterator)
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{
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if (validSequenceIterator == validSequence+4)
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if (validSequenceIterator == validSequence + 4)
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validSequenceIterator = validSequence;
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else
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++validSequenceIterator;
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@@ -945,539 +877,7 @@ valid examples:
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return true;
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}
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std::istringstream reader(message);
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char buffer[256];
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uint32 color = 0;
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ItemPrototype const* linkedItem = NULL;
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Quest const* linkedQuest = NULL;
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SpellEntry const *linkedSpell = NULL;
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AchievementEntry const* linkedAchievement = NULL;
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ItemRandomPropertiesEntry const* itemProperty = NULL;
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ItemRandomSuffixEntry const* itemSuffix = NULL;
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while (!reader.eof())
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{
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if (validSequence == validSequenceIterator)
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{
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linkedItem = NULL;
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linkedQuest = NULL;
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linkedSpell = NULL;
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linkedAchievement = NULL;
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itemProperty = NULL;
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itemSuffix = NULL;
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reader.ignore(255, '|');
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}
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else if (reader.get() != '|')
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{
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LOG("ChatHandler::isValidChatMessage('%s'): sequence aborted unexpectedly", reader.str().c_str());
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return false;
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}
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// pipe has always to be followed by at least one char
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if (reader.peek() == '\0')
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{
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LOG("ChatHandler::isValidChatMessage('%s'): pipe followed by '\\0'", reader.str().c_str());
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return false;
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}
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// no further pipe commands
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if (reader.eof())
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break;
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char commandChar;
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reader >> commandChar;
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// | in normal messages is escaped by ||
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if (commandChar != '|')
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{
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if (commandChar == *validSequenceIterator)
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{
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if (validSequenceIterator == validSequence+4)
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validSequenceIterator = validSequence;
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else
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++validSequenceIterator;
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}
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else
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{
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LOG("ChatHandler::isValidChatMessage('%s'): invalid sequence, expected '%c' but got '%c'", reader.str().c_str(), *validSequenceIterator, commandChar);
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return false;
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}
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}
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else if (validSequence != validSequenceIterator)
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{
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// no escaped pipes in sequences
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LOG("ChatHandler::isValidChatMessage('%s'): got escaped pipe in sequence", reader.str().c_str());
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return false;
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}
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switch (commandChar)
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{
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case 'c':
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color = 0;
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// validate color, expect 8 hex chars
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for (uint8 i = 0; i < 8; ++i)
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{
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char c;
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reader >> c;
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if (!c)
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{
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LOG("ChatHandler::isValidChatMessage('%s'): got \\0 while reading color in |c command", reader.str().c_str());
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return false;
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}
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color <<= 4;
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// check for hex char
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if (c >= '0' && c <= '9')
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color |= c - '0';
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else if (c >= 'a' && c <= 'f')
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color |= 10 + c - 'a';
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else
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{
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LOG("ChatHandler::isValidChatMessage('%s'): got non hex char '%c' while reading color", reader.str().c_str(), c);
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return false;
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}
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}
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break;
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case 'H':
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// read chars up to colon = link type
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reader.getline(buffer, 256, ':');
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if (reader.eof())
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{
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LOG("ChatHandler::isValidChatMessage('%s'): sequence finished unexpectedly", reader.str().c_str());
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return false;
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}
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if (strcmp(buffer, "item") == 0)
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{
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// read item entry
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reader.getline(buffer, 256, ':');
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if (reader.eof())
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{
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LOG("ChatHandler::isValidChatMessage('%s'): sequence finished unexpectedly", reader.str().c_str());
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return false;
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}
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uint32 itemEntry = atoi(buffer);
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linkedItem = ObjectMgr::GetItemPrototype(itemEntry);
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if (!linkedItem)
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{
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LOG("ChatHandler::isValidChatMessage('%s'): got invalid itemEntry %u in |item command", reader.str().c_str(), itemEntry);
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return false;
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}
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if (color != ItemQualityColors[linkedItem->Quality])
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{
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LOG("ChatHandler::isValidChatMessage('%s'): linked item has color %u, but user claims %u", reader.str().c_str(), ItemQualityColors[linkedItem->Quality], color);
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return false;
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}
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// The itementry is followed by several integers which describe an instance of this item
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const uint8 randomPropertyPosition = 6;
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char c = '\0';
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int32 id = 0;
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for (uint8 i = 0; i < randomPropertyPosition; ++i)
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{
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id = _ReadInt32(reader);
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c = reader.get();
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if (c != ':')
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{
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LOG("ChatHandler::isValidChatMessage('%s'): invalid character '%c' found while reading item properties", reader.str().c_str(), c);
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return false;
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}
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}
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// Validate random property
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if (id > 0)
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{
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itemProperty = sItemRandomPropertiesStore.LookupEntry(id);
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if (!itemProperty)
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{
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LOG("ChatHandler::isValidChatMessage('%s'): got invalid item property id %u in |item command", reader.str().c_str(), id);
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return false;
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}
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}
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else if (id < 0)
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{
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itemSuffix = sItemRandomSuffixStore.LookupEntry(-id);
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if (!itemSuffix)
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{
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LOG("ChatHandler::isValidChatMessage('%s'): got invalid item suffix id %u in |item command", reader.str().c_str(), -id);
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return false;
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}
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}
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// ignore other integers
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while ((c >= '0' && c <= '9') || c == ':')
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{
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reader.ignore(1);
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c = reader.peek();
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}
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}
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else if (strcmp(buffer, "quest") == 0)
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{
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// Quest Id
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uint32 questId = _ReadUInt32(reader);
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linkedQuest = sObjectMgr->GetQuestTemplate(questId);
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if (!linkedQuest)
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{
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LOG("ChatHandler::isValidChatMessage('%s'): quest template %u not found", reader.str().c_str(), questId);
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return false;
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}
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// Delimiter
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char c = reader.peek();
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if (c != ':')
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{
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LOG("ChatHandler::isValidChatMessage('%s'): invalid quest link structure (':' expected, '%c' found)", reader.str().c_str(), c);
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return false;
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}
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reader.ignore(1);
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// Quest level
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int32 questLevel = _ReadInt32(reader);
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if (questLevel >= STRONG_MAX_LEVEL)
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{
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LOG("ChatHandler::isValidChatMessage('%s'): quest level %d is too big", reader.str().c_str(), questLevel);
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return false;
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}
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}
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else if (strcmp(buffer, "trade") == 0)
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{
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if (color != CHAT_LINK_COLOR_TRADE)
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return false;
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// Spell Id
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reader.getline(buffer, 256, ':');
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if (reader.eof())
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{
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LOG("ChatHandler::isValidChatMessage('%s'): sequence finished unexpectedly", reader.str().c_str());
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return false;
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}
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uint32 spellId = atoi(buffer);
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linkedSpell = sSpellStore.LookupEntry(spellId);
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if (!linkedSpell)
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{
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LOG("ChatHandler::isValidChatMessage('%s'): got invalid spell id %u in |trade command", reader.str().c_str(), spellId);
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return false;
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}
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// base64 encoded stuff
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char c = reader.peek();
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while (c != '|' && c != '\0')
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{
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reader.ignore(1);
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c = reader.peek();
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}
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}
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else if (strcmp(buffer, "talent") == 0)
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{
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// talent links are always supposed to be blue
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if (color != CHAT_LINK_COLOR_TALENT)
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return false;
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// read talent entry
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reader.getline(buffer, 256, ':');
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if (reader.eof())
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{
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LOG("ChatHandler::isValidChatMessage('%s'): sequence finished unexpectedly", reader.str().c_str());
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return false;
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}
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uint32 talentId = atoi(buffer);
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TalentEntry const *talentInfo = sTalentStore.LookupEntry(talentId);
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if (!talentInfo)
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{
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LOG("ChatHandler::isValidChatMessage('%s'): got invalid talent id %u in |talent command", reader.str().c_str(), talentId);
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return false;
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}
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linkedSpell = sSpellStore.LookupEntry(talentInfo->RankID[0]);
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if (!linkedSpell)
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{
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LOG("ChatHandler::isValidChatMessage('%s'): got invalid spell id %u in |trade command", reader.str().c_str(), talentInfo->RankID[0]);
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return false;
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}
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// skillpoints? whatever, drop it
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char c = reader.peek();
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while (c != '|' && c != '\0')
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{
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reader.ignore(1);
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c = reader.peek();
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}
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}
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else if (strcmp(buffer, "spell") == 0)
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{
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if (color != CHAT_LINK_COLOR_SPELL)
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return false;
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// Spell Id
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uint32 spellId = _ReadUInt32(reader);
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linkedSpell = sSpellStore.LookupEntry(spellId);
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if (!linkedSpell)
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{
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LOG("ChatHandler::isValidChatMessage('%s'): got invalid spell id %u in |spell command", reader.str().c_str(), spellId);
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return false;
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}
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}
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else if (strcmp(buffer, "enchant") == 0)
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{
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if (color != CHAT_LINK_COLOR_ENCHANT)
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return false;
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// Spell Id
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uint32 spellId = _ReadUInt32(reader);
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linkedSpell = sSpellStore.LookupEntry(spellId);
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if (!linkedSpell)
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{
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LOG("ChatHandler::isValidChatMessage('%s'): got invalid spell id %u in |enchant command", reader.str().c_str(), spellId);
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return false;
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}
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}
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else if (strcmp(buffer, "achievement") == 0)
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{
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if (color != CHAT_LINK_COLOR_ACHIEVEMENT)
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return false;
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// Achievemnt Id
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reader.getline(buffer, 256, ':');
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if (reader.eof())
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{
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LOG("ChatHandler::isValidChatMessage('%s'): sequence finished unexpectedly", reader.str().c_str());
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return false;
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}
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uint32 achievementId = atoi(buffer);
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linkedAchievement = sAchievementStore.LookupEntry(achievementId);
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if (!linkedAchievement)
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{
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LOG("ChatHandler::isValidChatMessage('%s'): got invalid achivement id %u in |achievement command", reader.str().c_str(), achievementId);
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return false;
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}
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// skip progress
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char c = reader.peek();
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while (c !='|' && c != '\0')
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{
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reader.ignore(1);
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c = reader.peek();
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}
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}
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else if (strcmp(buffer, "glyph") == 0)
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{
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if (color != CHAT_LINK_COLOR_GLYPH)
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return false;
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// first id is slot, drop it
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reader.getline(buffer, 256, ':');
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if (reader.eof())
|
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{
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LOG("ChatHandler::isValidChatMessage('%s'): sequence finished unexpectedly", reader.str().c_str());
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return false;
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}
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uint32 glyphId = _ReadUInt32(reader);
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GlyphPropertiesEntry const* glyph = sGlyphPropertiesStore.LookupEntry(glyphId);
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if (!glyph)
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{
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LOG("ChatHandler::isValidChatMessage('%s'): got invalid glyph id %u in |glyph command", reader.str().c_str(), glyphId);
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return false;
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}
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linkedSpell = sSpellStore.LookupEntry(glyph->SpellId);
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if (!linkedSpell)
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{
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LOG("ChatHandler::isValidChatMessage('%s'): got invalid spell id %u in |glyph command", reader.str().c_str(), glyph->SpellId);
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return false;
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}
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||||
}
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else
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||||
{
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||||
LOG("ChatHandler::isValidChatMessage('%s'): user sent unsupported link type '%s'", reader.str().c_str(), buffer);
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||||
return false;
|
||||
}
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||||
break;
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case 'h':
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// if h is next element in sequence, this one must contain the linked text :)
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||||
if (*validSequenceIterator == 'h')
|
||||
{
|
||||
// links start with '['
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if (reader.get() != '[')
|
||||
{
|
||||
LOG("ChatHandler::isValidChatMessage('%s'): link caption doesn't start with '['", reader.str().c_str());
|
||||
return false;
|
||||
}
|
||||
reader.getline(buffer, 256, ']');
|
||||
if (reader.eof())
|
||||
{
|
||||
LOG("ChatHandler::isValidChatMessage('%s'): sequence finished unexpectedly", reader.str().c_str());
|
||||
return false;
|
||||
}
|
||||
|
||||
// verify the link name
|
||||
if (linkedSpell)
|
||||
{
|
||||
// spells with that flag have a prefix of "$PROFESSION: "
|
||||
if (linkedSpell->Attributes & SPELL_ATTR0_TRADESPELL)
|
||||
{
|
||||
// lookup skillid
|
||||
SkillLineAbilityMapBounds bounds = sSpellMgr->GetSkillLineAbilityMapBounds(linkedSpell->Id);
|
||||
if (bounds.first == bounds.second)
|
||||
{
|
||||
LOG("ChatHandler::isValidChatMessage('%s'): skill line not found for spell %u", reader.str().c_str(), linkedSpell->Id);
|
||||
return false;
|
||||
}
|
||||
|
||||
SkillLineAbilityEntry const *skillInfo = bounds.first->second;
|
||||
if (!skillInfo)
|
||||
{
|
||||
LOG("ChatHandler::isValidChatMessage('%s'): skill line ability not found for spell %u", reader.str().c_str(), linkedSpell->Id);
|
||||
return false;
|
||||
}
|
||||
|
||||
SkillLineEntry const *skillLine = sSkillLineStore.LookupEntry(skillInfo->skillId);
|
||||
if (!skillLine)
|
||||
{
|
||||
LOG("ChatHandler::isValidChatMessage('%s'): skill line not found for skill %u", reader.str().c_str(), skillInfo->skillId);
|
||||
return false;
|
||||
}
|
||||
|
||||
for (uint8 i = 0; i < TOTAL_LOCALES; ++i)
|
||||
{
|
||||
uint32 skillLineNameLength = strlen(skillLine->name[i]);
|
||||
if (skillLineNameLength > 0 && strncmp(skillLine->name[i], buffer, skillLineNameLength) == 0)
|
||||
{
|
||||
// found the prefix, remove it to perform spellname validation below
|
||||
// -2 = strlen(": ")
|
||||
uint32 spellNameLength = strlen(buffer) - skillLineNameLength - 2;
|
||||
memmove(buffer, buffer + skillLineNameLength + 2, spellNameLength + 1);
|
||||
}
|
||||
}
|
||||
}
|
||||
bool foundName = false;
|
||||
for (uint8 i = 0; i < TOTAL_LOCALES; ++i)
|
||||
{
|
||||
if (*linkedSpell->SpellName[i] && strcmp(linkedSpell->SpellName[i], buffer) == 0)
|
||||
{
|
||||
foundName = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (!foundName)
|
||||
return false;
|
||||
}
|
||||
else if (linkedQuest)
|
||||
{
|
||||
if (linkedQuest->GetTitle() != buffer)
|
||||
{
|
||||
QuestLocale const *ql = sObjectMgr->GetQuestLocale(linkedQuest->GetQuestId());
|
||||
if (!ql)
|
||||
{
|
||||
LOG("ChatHandler::isValidChatMessage('%s'): default questname didn't match and no locales present for this quest (id: %u)", reader.str().c_str(), linkedQuest->GetQuestId());
|
||||
return false;
|
||||
}
|
||||
|
||||
bool foundName = false;
|
||||
for (uint8 i=0; i<ql->Title.size(); i++)
|
||||
{
|
||||
if (ql->Title[i] == buffer)
|
||||
{
|
||||
foundName = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (!foundName)
|
||||
{
|
||||
LOG("ChatHandler::isValidChatMessage('%s'): linked quest (id: %u) name wasn't found in any localization", reader.str().c_str(), linkedQuest->GetQuestId());
|
||||
return false;
|
||||
}
|
||||
}
|
||||
}
|
||||
else if (linkedItem)
|
||||
{
|
||||
char* const* suffix = itemSuffix ? itemSuffix->nameSuffix :
|
||||
(itemProperty ? itemProperty->nameSuffix : NULL);
|
||||
|
||||
std::string expectedName = std::string(linkedItem->Name1);
|
||||
if (suffix)
|
||||
{
|
||||
expectedName += " ";
|
||||
expectedName += suffix[LOCALE_enUS];
|
||||
}
|
||||
|
||||
if (expectedName != buffer)
|
||||
{
|
||||
ItemLocale const *il = sObjectMgr->GetItemLocale(linkedItem->ItemId);
|
||||
|
||||
bool foundName = false;
|
||||
for (uint8 dbIndex = LOCALE_koKR; dbIndex < TOTAL_LOCALES; ++dbIndex)
|
||||
{
|
||||
if (il == NULL || dbIndex >= il->Name.size())
|
||||
// using strange database/client combinations can lead to this case
|
||||
expectedName = linkedItem->Name1;
|
||||
else
|
||||
expectedName = il->Name[dbIndex];
|
||||
if (suffix)
|
||||
{
|
||||
expectedName += " ";
|
||||
expectedName += suffix[dbIndex];
|
||||
}
|
||||
if (expectedName == buffer)
|
||||
{
|
||||
foundName = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (!foundName)
|
||||
{
|
||||
LOG("ChatHandler::isValidChatMessage('%s'): linked item (id: %u) name wasn't found in any localization", reader.str().c_str(), linkedItem->ItemId);
|
||||
return false;
|
||||
}
|
||||
}
|
||||
}
|
||||
else if (linkedAchievement)
|
||||
{
|
||||
bool foundName = false;
|
||||
for (uint8 i = 0; i < TOTAL_LOCALES; ++i)
|
||||
{
|
||||
if (*linkedAchievement->name[i] && strcmp(linkedAchievement->name[i], buffer) == 0)
|
||||
{
|
||||
foundName = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (!foundName)
|
||||
{
|
||||
LOG("ChatHandler::isValidChatMessage('%s'): linked achievement (id: %u) name wasn't found in any localization", reader.str().c_str(), linkedAchievement->ID);
|
||||
return false;
|
||||
}
|
||||
}
|
||||
// that place should never be reached - if nothing linked has been set in |H
|
||||
// it will return false before
|
||||
else
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
case 'r':
|
||||
case '|':
|
||||
// no further payload
|
||||
break;
|
||||
default:
|
||||
LOG("ChatHandler::isValidChatMessage('%s'): got invalid command |%c", reader.str().c_str(), commandChar);
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
// check if every opened sequence was also closed properly
|
||||
if (validSequence != validSequenceIterator)
|
||||
{
|
||||
LOG("ChatHandler::isValidChatMessage('%s'): EOF in active sequence", reader.str().c_str());
|
||||
return false;
|
||||
}
|
||||
|
||||
return true;
|
||||
return LinkExtractor(message).IsValidMessage();
|
||||
}
|
||||
|
||||
bool ChatHandler::ShowHelpForSubCommands(ChatCommand *table, char const* cmd, char const* subcmd)
|
||||
|
||||
Reference in New Issue
Block a user