Core/Quest: Fix issues reported by static analysis

src/server/game/Entities/Unit/Unit.cpp

@@ -8291,6 +8291,7 @@ bool Unit::HandleProcTriggerSpell(Unit* victim, uint32 damage, AuraEffect* trigg
         case 15337: // Improved Spirit Tap (Rank 1)
         case 15338: // Improved Spirit Tap (Rank 2)
         {
+            ASSERT(procSpell);
             if (procSpell->SpellFamilyFlags[0] & 0x800000)
                 if ((procSpell->Id != 58381) || !roll_chance_i(50))
                     return false;
@@ -8552,7 +8553,7 @@ bool Unit::HandleProcTriggerSpell(Unit* victim, uint32 damage, AuraEffect* trigg
 
     // try detect target manually if not set
     if (target == NULL)
-        target = !(procFlags & (PROC_FLAG_DONE_SPELL_MAGIC_DMG_CLASS_POS | PROC_FLAG_DONE_SPELL_NONE_DMG_CLASS_POS)) && triggerEntry && triggerEntry->IsPositive() ? this : victim;
+        target = !(procFlags & (PROC_FLAG_DONE_SPELL_MAGIC_DMG_CLASS_POS | PROC_FLAG_DONE_SPELL_NONE_DMG_CLASS_POS)) && triggerEntry->IsPositive() ? this : victim;
 
     if (basepoints0)
         CastCustomSpell(target, trigger_spell_id, &basepoints0, NULL, NULL, true, castItem, triggeredByAura);
@@ -9648,7 +9649,7 @@ Unit* Unit::GetMagicHitRedirectTarget(Unit* victim, SpellInfo const* spellInfo)
                 && _IsValidAttackTarget(magnet, spellInfo))
             {
                 /// @todo handle this charge drop by proc in cast phase on explicit target
-                if (victim && spellInfo->Speed > 0.0f)
+                if (spellInfo->Speed > 0.0f)
                 {
                     // Set up missile speed based delay
                     uint32 delay = uint32(std::floor(std::max<float>(victim->GetDistance(this), 5.0f) / spellInfo->Speed * 1000.0f));
@@ -16041,7 +16042,7 @@ void Unit::RemoveCharmedBy(Unit* charmer)
 
         // Vehicle should not attack its passenger after he exists the seat
         if (type != CHARM_TYPE_VEHICLE)
-            LastCharmerGUID = charmer->GetGUID();
+            LastCharmerGUID = ASSERT_NOTNULL(charmer)->GetGUID();
     }
 
     // If charmer still exists

src/server/game/Entities/Unit/Unit.h

@@ -898,6 +898,12 @@ public:
     uint32 GetHitMask() const { return _hitMask; }
 
     SpellInfo const* GetSpellInfo() const { return NULL; }
+    SpellInfo const* EnsureSpellInfo() const
+    {
+        SpellInfo const* spellInfo = GetSpellInfo();
+        ASSERT(spellInfo);
+        return spellInfo;
+    }
     SpellSchoolMask GetSchoolMask() const { return SPELL_SCHOOL_MASK_NONE; }
 
     DamageInfo* GetDamageInfo() const { return _damageInfo; }

src/server/game/Handlers/GroupHandler.cpp

@@ -991,7 +991,7 @@ void WorldSession::HandleRequestPartyMemberStatsOpcode(WorldPacket &recvData)
     data.put<uint64>(maskPos, auraMask);                    // GROUP_UPDATE_FLAG_AURAS
 
     if (updateFlags & GROUP_UPDATE_FLAG_PET_GUID)
-        data << uint64(pet->GetGUID());
+        data << uint64(ASSERT_NOTNULL(pet)->GetGUID());
 
     data << std::string(pet ? pet->GetName() : "");         // GROUP_UPDATE_FLAG_PET_NAME
     data << uint16(pet ? pet->GetDisplayId() : 0);          // GROUP_UPDATE_FLAG_PET_MODEL_ID

src/server/game/Spells/SpellEffects.cpp

@@ -5638,7 +5638,7 @@ void Spell::EffectGameObjectDamage(SpellEffIndex /*effIndex*/)
     FactionTemplateEntry const* casterFaction = caster->GetFactionTemplateEntry();
     FactionTemplateEntry const* targetFaction = sFactionTemplateStore.LookupEntry(gameObjTarget->GetUInt32Value(GAMEOBJECT_FACTION));
     // Do not allow to damage GO's of friendly factions (ie: Wintergrasp Walls/Ulduar Storm Beacons)
-    if ((casterFaction && targetFaction && !casterFaction->IsFriendlyTo(*targetFaction)) || !targetFaction)
+    if (!targetFaction || (casterFaction && targetFaction && !casterFaction->IsFriendlyTo(*targetFaction)))
         gameObjTarget->ModifyHealth(-damage, caster, GetSpellInfo()->Id);
 }
 

src/server/game/Spells/SpellMgr.cpp

@@ -969,10 +969,10 @@ bool SpellMgr::CanSpellTriggerProcOnEvent(SpellProcEntry const& procEntry, ProcE
     // check spell family name/flags (if set) for spells
     if (eventInfo.GetTypeMask() & (PERIODIC_PROC_FLAG_MASK | SPELL_PROC_FLAG_MASK | PROC_FLAG_DONE_TRAP_ACTIVATION))
     {
-        if (procEntry.spellFamilyName && eventInfo.GetSpellInfo() && (procEntry.spellFamilyName != eventInfo.GetSpellInfo()->SpellFamilyName))
+        if (procEntry.spellFamilyName && eventInfo.GetSpellInfo() && (procEntry.spellFamilyName != eventInfo.EnsureSpellInfo()->SpellFamilyName))
             return false;
 
-        if (procEntry.spellFamilyMask && eventInfo.GetSpellInfo() && !(procEntry.spellFamilyMask & eventInfo.GetSpellInfo()->SpellFamilyFlags))
+        if (procEntry.spellFamilyMask && eventInfo.GetSpellInfo() && !(procEntry.spellFamilyMask & eventInfo.EnsureSpellInfo()->SpellFamilyFlags))
             return false;
     }
 

src/server/scripts/Commands/cs_wp.cpp

@@ -374,6 +374,12 @@ public:
 
         if (show == "del")
         {
+            if (!arg_id)
+            {
+                handler->SendSysMessage("|cffff33ffERROR: Waypoint script guid not present.|r");
+                return true;
+            }
+
             id = atoi(arg_id);
 
             stmt = WorldDatabase.GetPreparedStatement(WORLD_SEL_WAYPOINT_SCRIPT_ID_BY_GUID);