feat(rules): 条件系统增强，支持 all/any 组合条件和 original/current 数据源切换

- evaluate_condition 支持递归 all/any 组合节点和 source 字段
- header_rules 支持 condition 条件触发，HeaderBuilder.apply_rules 透传 body/original_body
- 提取 EndpointConditionEditor 组件统一请求头/请求体规则的条件编辑 UI
- header_rules 新增服务端结构校验（action/key/from/to/condition）
- 新增组合条件、source 切换、fail-closed 等测试用例

frontend/src/api/endpoints/types/provider.ts

@@ -42,8 +42,6 @@ export interface HeaderRuleRename {
   to: string
 }
 
-export type HeaderRule = HeaderRuleSet | HeaderRuleDrop | HeaderRuleRename
-
 /**
  * 请求体规则类型
  * - set: 设置/覆盖字段
@@ -136,10 +134,28 @@ export type BodyRuleConditionOp =
   | 'exists' | 'not_exists'
   | 'in' | 'type_is'
 
-export interface BodyRuleCondition {
+export interface BodyRuleConditionLeaf {
   path: string
   op: BodyRuleConditionOp
   value?: unknown  // exists / not_exists 不需要 value
+  source?: 'original' | 'current'
+}
+
+export interface BodyRuleConditionAll {
+  all: BodyRuleCondition[]
+}
+
+export interface BodyRuleConditionAny {
+  any: BodyRuleCondition[]
+}
+
+export type BodyRuleCondition =
+  | BodyRuleConditionLeaf
+  | BodyRuleConditionAll
+  | BodyRuleConditionAny
+
+export type HeaderRule = (HeaderRuleSet | HeaderRuleDrop | HeaderRuleRename) & {
+  condition?: BodyRuleCondition
 }
 
 /**

frontend/src/features/providers/components/EndpointConditionEditor.vue

@@ -0,0 +1,285 @@
+<template>
+  <div>
+    <!-- Group node -->
+    <div
+      v-if="modelValue.kind === 'group'"
+      class="rounded-md border p-2"
+      :class="[
+        nested ? 'bg-muted/30 border-dashed' : 'bg-muted/10 border-border',
+      ]"
+    >
+      <!-- Group header: mode selector + actions -->
+      <div class="flex items-center gap-1.5 mb-2">
+        <Select
+          :model-value="modelValue.mode"
+          @update:model-value="(value: string) => updateGroupMode(value as ConditionGroupMode)"
+        >
+          <SelectTrigger class="w-[86px] h-6 text-xs font-medium shrink-0">
+            <SelectValue />
+          </SelectTrigger>
+          <SelectContent>
+            <SelectItem value="all">
+              AND
+            </SelectItem>
+            <SelectItem value="any">
+              OR
+            </SelectItem>
+          </SelectContent>
+        </Select>
+        <div class="flex-1" />
+        <Button
+          variant="ghost"
+          size="sm"
+          class="h-6 px-1.5 text-xs text-muted-foreground"
+          title="添加条件"
+          @click="addLeafChild"
+        >
+          <Plus class="w-3 h-3 mr-0.5" />
+          条件
+        </Button>
+        <Button
+          variant="ghost"
+          size="sm"
+          class="h-6 px-1.5 text-xs text-muted-foreground"
+          title="添加嵌套条件组"
+          @click="addGroupChild(modelValue.mode === 'all' ? 'any' : 'all')"
+        >
+          <Plus class="w-3 h-3 mr-0.5" />
+          子组
+        </Button>
+        <Button
+          v-if="removable && nested"
+          variant="ghost"
+          size="icon"
+          class="h-6 w-6 shrink-0 text-muted-foreground hover:text-destructive"
+          @click="emit('remove')"
+        >
+          <X class="w-3 h-3" />
+        </Button>
+      </div>
+
+      <!-- Children with logic connector labels between them -->
+      <div class="space-y-0">
+        <template
+          v-for="(child, index) in modelValue.children"
+          :key="index"
+        >
+          <!-- Logic connector label between children -->
+          <div
+            v-if="index > 0"
+            class="flex items-center gap-2 py-0.5 pl-2"
+          >
+            <span
+              class="text-[10px] font-semibold px-1.5 py-0.5 rounded"
+              :class="modelValue.mode === 'all'
+                ? 'bg-blue-500/15 text-blue-600 dark:text-blue-400'
+                : 'bg-amber-500/15 text-amber-600 dark:text-amber-400'"
+            >
+              {{ modelValue.mode === 'all' ? 'AND' : 'OR' }}
+            </span>
+            <div class="flex-1 border-t border-dashed border-muted-foreground/20" />
+          </div>
+
+          <EndpointConditionEditor
+            :model-value="child"
+            :path-hint="pathHint"
+            nested
+            removable
+            @update:model-value="(next) => updateChild(index, next)"
+            @remove="removeChild(index)"
+          />
+        </template>
+      </div>
+    </div>
+
+    <!-- Leaf node -->
+    <div
+      v-else
+      class="flex flex-wrap items-center gap-1.5 rounded-md px-2 py-1.5"
+      :class="nested ? 'bg-background/60' : 'bg-muted/10 border border-border'"
+    >
+      <!-- Toggle to group mode (icon button at the start) -->
+      <Button
+        v-if="!nested"
+        variant="ghost"
+        size="icon"
+        class="h-7 w-7 shrink-0 text-muted-foreground"
+        title="转为组合条件 (AND/OR)"
+        @click="convertToGroup('all')"
+      >
+        <ListFilter class="w-3.5 h-3.5" />
+      </Button>
+      <Select
+        :model-value="modelValue.source"
+        @update:model-value="(value: string) => updateLeafField('source', value)"
+      >
+        <SelectTrigger class="w-[96px] h-7 text-xs shrink-0">
+          <SelectValue />
+        </SelectTrigger>
+        <SelectContent>
+          <SelectItem value="current">
+            Current
+          </SelectItem>
+          <SelectItem value="original">
+            Original
+          </SelectItem>
+        </SelectContent>
+      </Select>
+      <Input
+        :model-value="modelValue.path"
+        :placeholder="pathHint || '字段路径'"
+        size="sm"
+        class="flex-1 min-w-[120px] h-7 text-xs"
+        @update:model-value="(value) => updateLeafField('path', value)"
+      />
+      <Select
+        :model-value="modelValue.op"
+        @update:model-value="(value: string) => updateLeafField('op', value)"
+      >
+        <SelectTrigger class="w-[110px] h-7 text-xs shrink-0">
+          <SelectValue />
+        </SelectTrigger>
+        <SelectContent>
+          <SelectItem
+            v-for="option in CONDITION_OP_OPTIONS"
+            :key="option.value"
+            :value="option.value"
+          >
+            {{ option.label }}
+          </SelectItem>
+        </SelectContent>
+      </Select>
+      <Input
+        v-if="isConditionValueRequired(modelValue.op)"
+        :model-value="modelValue.value"
+        :placeholder="getConditionValuePlaceholder(modelValue.op)"
+        size="sm"
+        class="flex-1 min-w-[120px] h-7 text-xs"
+        @update:model-value="(value) => updateLeafField('value', value)"
+      />
+      <Button
+        v-if="removable"
+        variant="ghost"
+        size="icon"
+        class="h-7 w-7 shrink-0 text-muted-foreground hover:text-destructive"
+        @click="emit('remove')"
+      >
+        <X class="w-3 h-3" />
+      </Button>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { Button, Input, Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from '@/components/ui'
+import { ListFilter, Plus, X } from 'lucide-vue-next'
+
+import type { BodyRuleConditionOp } from '@/api/endpoints'
+import {
+  CONDITION_OP_OPTIONS,
+  cloneEditableCondition,
+  createConditionGroup,
+  createEmptyConditionLeaf,
+  getConditionValuePlaceholder,
+  isConditionValueRequired,
+  type ConditionGroupMode,
+  type ConditionSource,
+  type EditableConditionGroup,
+  type EditableConditionLeaf,
+  type EditableConditionNode,
+} from './endpoint-rule-condition'
+
+const props = withDefaults(defineProps<{
+  modelValue: EditableConditionNode
+  pathHint?: string
+  nested?: boolean
+  removable?: boolean
+}>(), {
+  pathHint: '',
+  nested: false,
+  removable: false,
+})
+
+const emit = defineEmits<{
+  'update:modelValue': [value: EditableConditionNode]
+  remove: []
+}>()
+
+defineOptions({ name: 'EndpointConditionEditor' })
+
+function updateLeafField(field: keyof EditableConditionLeaf, rawValue: string): void {
+  if (props.modelValue.kind !== 'leaf') return
+
+  const next = cloneEditableCondition(props.modelValue) as EditableConditionLeaf
+
+  if (field === 'op') {
+    next.op = rawValue as BodyRuleConditionOp
+    if (!isConditionValueRequired(next.op)) next.value = ''
+  } else if (field === 'source') {
+    next.source = rawValue as ConditionSource
+  } else if (field === 'path' || field === 'value') {
+    next[field] = rawValue
+  }
+
+  emit('update:modelValue', next)
+}
+
+function updateGroupMode(mode: ConditionGroupMode): void {
+  if (props.modelValue.kind !== 'group') return
+
+  const next = cloneEditableCondition(props.modelValue) as EditableConditionGroup
+  next.mode = mode
+  emit('update:modelValue', next)
+}
+
+function convertToGroup(mode: ConditionGroupMode): void {
+  const seed = props.modelValue.kind === 'leaf'
+    ? cloneEditableCondition(props.modelValue)
+    : createEmptyConditionLeaf()
+  emit('update:modelValue', createConditionGroup(mode, [seed]))
+}
+
+function addLeafChild(): void {
+  if (props.modelValue.kind !== 'group') return
+
+  const next = cloneEditableCondition(props.modelValue) as EditableConditionGroup
+  next.children.push(createEmptyConditionLeaf())
+  emit('update:modelValue', next)
+}
+
+function addGroupChild(mode: ConditionGroupMode): void {
+  if (props.modelValue.kind !== 'group') return
+
+  const next = cloneEditableCondition(props.modelValue) as EditableConditionGroup
+  next.children.push(createConditionGroup(mode))
+  emit('update:modelValue', next)
+}
+
+function updateChild(index: number, child: EditableConditionNode): void {
+  if (props.modelValue.kind !== 'group') return
+
+  const next = cloneEditableCondition(props.modelValue) as EditableConditionGroup
+  next.children[index] = child
+  emit('update:modelValue', next)
+}
+
+function removeChild(index: number): void {
+  if (props.modelValue.kind !== 'group') return
+
+  const next = cloneEditableCondition(props.modelValue) as EditableConditionGroup
+  next.children.splice(index, 1)
+
+  // When all children are removed, if top-level group, emit remove to let parent clear the condition
+  if (next.children.length === 0) {
+    if (!props.nested) {
+      emit('remove')
+    } else {
+      next.children.push(createEmptyConditionLeaf())
+      emit('update:modelValue', next)
+    }
+    return
+  }
+
+  emit('update:modelValue', next)
+}
+</script>

frontend/src/features/providers/components/EndpointFormDialog.vue

@@ -228,105 +228,126 @@
                       <span>拖拽左侧手柄可调整规则执行顺序</span>
                     </div>
                     <!-- 请求头规则列表 - 主题色边框 -->
-                    <div
+                    <template
                       v-for="(rule, index) in getEndpointEditRules(endpoint.id)"
                       :key="`header-${index}`"
-                      class="flex items-center gap-1.5 px-2 py-1.5 rounded-md border-l-4 border-primary/60 bg-muted/30"
-                      :class="[
-                        isHeaderRuleDragging(endpoint.id, index) ? 'opacity-60 border-primary bg-primary/5' : '',
-                        isHeaderRuleDragOver(endpoint.id, index) ? 'ring-1 ring-primary/40 bg-primary/10' : ''
-                      ]"
-                      @dragover.prevent="handleHeaderRuleDragOver(endpoint.id, index)"
-                      @dragleave="handleHeaderRuleDragLeave(endpoint.id, index)"
-                      @drop.prevent="handleHeaderRuleDrop(endpoint.id, index)"
                     >
-                      <button
-                        type="button"
-                        class="h-7 w-6 shrink-0 inline-flex items-center justify-center rounded-sm text-muted-foreground/60 hover:text-muted-foreground hover:bg-muted cursor-grab active:cursor-grabbing"
-                        title="拖拽排序"
-                        draggable="true"
-                        @dragstart="(e) => handleHeaderRuleDragStart(endpoint.id, index, e)"
-                        @dragend="() => handleHeaderRuleDragEnd(endpoint.id)"
+                      <div
+                        class="flex items-center gap-1.5 px-2 py-1.5 rounded-md border-l-4 border-primary/60 bg-muted/30"
+                        :class="[
+                          isHeaderRuleDragging(endpoint.id, index) ? 'opacity-60 border-primary bg-primary/5' : '',
+                          isHeaderRuleDragOver(endpoint.id, index) ? 'ring-1 ring-primary/40 bg-primary/10' : ''
+                        ]"
+                        @dragover.prevent="handleHeaderRuleDragOver(endpoint.id, index)"
+                        @dragleave="handleHeaderRuleDragLeave(endpoint.id, index)"
+                        @drop.prevent="handleHeaderRuleDrop(endpoint.id, index)"
                       >
-                        <GripVertical class="w-3.5 h-3.5" />
-                      </button>
-                      <span
-                        class="text-[10px] font-semibold text-primary shrink-0"
-                        title="请求头"
-                      >H</span>
-                      <Select
-                        :model-value="rule.action"
-                        :open="ruleSelectOpen[`${endpoint.id}-${index}`]"
-                        @update:model-value="(v) => updateEndpointRuleAction(endpoint.id, index, v as 'set' | 'drop' | 'rename')"
-                        @update:open="(v) => handleRuleSelectOpen(endpoint.id, index, v)"
-                      >
-                        <SelectTrigger class="w-[88px] h-7 text-xs shrink-0">
-                          <SelectValue />
-                        </SelectTrigger>
-                        <SelectContent>
-                          <SelectItem value="set">
-                            覆写
-                          </SelectItem>
-                          <SelectItem value="drop">
-                            删除
-                          </SelectItem>
-                          <SelectItem value="rename">
-                            重命名
-                          </SelectItem>
-                        </SelectContent>
-                      </Select>
-                      <template v-if="rule.action === 'set'">
-                        <Input
-                          :model-value="rule.key"
-                          placeholder="名称"
-                          size="sm"
-                          class="flex-1 min-w-0 h-7 text-xs"
-                          @update:model-value="(v) => updateEndpointRuleField(endpoint.id, index, 'key', v)"
-                        />
-                        <span class="text-muted-foreground text-xs">=</span>
-                        <Input
-                          :model-value="rule.value"
-                          placeholder="值"
-                          size="sm"
-                          class="flex-1 min-w-0 h-7 text-xs"
-                          @update:model-value="(v) => updateEndpointRuleField(endpoint.id, index, 'value', v)"
-                        />
-                      </template>
-                      <template v-else-if="rule.action === 'drop'">
-                        <Input
-                          :model-value="rule.key"
-                          placeholder="要删除的名称"
-                          size="sm"
-                          class="flex-1 min-w-0 h-7 text-xs"
-                          @update:model-value="(v) => updateEndpointRuleField(endpoint.id, index, 'key', v)"
-                        />
-                      </template>
-                      <template v-else-if="rule.action === 'rename'">
-                        <Input
-                          :model-value="rule.from"
-                          placeholder="原名"
-                          size="sm"
-                          class="flex-1 min-w-0 h-7 text-xs"
-                          @update:model-value="(v) => updateEndpointRuleField(endpoint.id, index, 'from', v)"
-                        />
-                        <span class="text-muted-foreground text-xs">→</span>
-                        <Input
-                          :model-value="rule.to"
-                          placeholder="新名"
-                          size="sm"
-                          class="flex-1 min-w-0 h-7 text-xs"
-                          @update:model-value="(v) => updateEndpointRuleField(endpoint.id, index, 'to', v)"
-                        />
-                      </template>
-                      <Button
-                        variant="ghost"
-                        size="icon"
-                        class="h-7 w-7 shrink-0"
-                        @click="removeEndpointRule(endpoint.id, index)"
-                      >
-                        <X class="w-3 h-3" />
-                      </Button>
-                    </div>
+                        <button
+                          type="button"
+                          class="h-7 w-6 shrink-0 inline-flex items-center justify-center rounded-sm text-muted-foreground/60 hover:text-muted-foreground hover:bg-muted cursor-grab active:cursor-grabbing"
+                          title="拖拽排序"
+                          draggable="true"
+                          @dragstart="(e) => handleHeaderRuleDragStart(endpoint.id, index, e)"
+                          @dragend="() => handleHeaderRuleDragEnd(endpoint.id)"
+                        >
+                          <GripVertical class="w-3.5 h-3.5" />
+                        </button>
+                        <span
+                          class="text-[10px] font-semibold text-primary shrink-0"
+                          title="请求头"
+                        >H</span>
+                        <Select
+                          :model-value="rule.action"
+                          :open="ruleSelectOpen[`${endpoint.id}-${index}`]"
+                          @update:model-value="(v) => updateEndpointRuleAction(endpoint.id, index, v as 'set' | 'drop' | 'rename')"
+                          @update:open="(v) => handleRuleSelectOpen(endpoint.id, index, v)"
+                        >
+                          <SelectTrigger class="w-[88px] h-7 text-xs shrink-0">
+                            <SelectValue />
+                          </SelectTrigger>
+                          <SelectContent>
+                            <SelectItem value="set">
+                              覆写
+                            </SelectItem>
+                            <SelectItem value="drop">
+                              删除
+                            </SelectItem>
+                            <SelectItem value="rename">
+                              重命名
+                            </SelectItem>
+                          </SelectContent>
+                        </Select>
+                        <Button
+                          variant="ghost"
+                          size="icon"
+                          class="h-7 w-7 shrink-0"
+                          :class="rule.condition ? 'text-primary' : ''"
+                          title="条件触发"
+                          @click="toggleEndpointRuleCondition(endpoint.id, index)"
+                        >
+                          <Filter class="w-3 h-3" />
+                        </Button>
+                        <template v-if="rule.action === 'set'">
+                          <Input
+                            :model-value="rule.key"
+                            placeholder="名称"
+                            size="sm"
+                            class="flex-1 min-w-0 h-7 text-xs"
+                            @update:model-value="(v) => updateEndpointRuleField(endpoint.id, index, 'key', v)"
+                          />
+                          <span class="text-muted-foreground text-xs">=</span>
+                          <Input
+                            :model-value="rule.value"
+                            placeholder="值"
+                            size="sm"
+                            class="flex-1 min-w-0 h-7 text-xs"
+                            @update:model-value="(v) => updateEndpointRuleField(endpoint.id, index, 'value', v)"
+                          />
+                        </template>
+                        <template v-else-if="rule.action === 'drop'">
+                          <Input
+                            :model-value="rule.key"
+                            placeholder="要删除的名称"
+                            size="sm"
+                            class="flex-1 min-w-0 h-7 text-xs"
+                            @update:model-value="(v) => updateEndpointRuleField(endpoint.id, index, 'key', v)"
+                          />
+                        </template>
+                        <template v-else-if="rule.action === 'rename'">
+                          <Input
+                            :model-value="rule.from"
+                            placeholder="原名"
+                            size="sm"
+                            class="flex-1 min-w-0 h-7 text-xs"
+                            @update:model-value="(v) => updateEndpointRuleField(endpoint.id, index, 'from', v)"
+                          />
+                          <span class="text-muted-foreground text-xs">→</span>
+                          <Input
+                            :model-value="rule.to"
+                            placeholder="新名"
+                            size="sm"
+                            class="flex-1 min-w-0 h-7 text-xs"
+                            @update:model-value="(v) => updateEndpointRuleField(endpoint.id, index, 'to', v)"
+                          />
+                        </template>
+                        <Button
+                          variant="ghost"
+                          size="icon"
+                          class="h-7 w-7 shrink-0"
+                          @click="removeEndpointRule(endpoint.id, index)"
+                        >
+                          <X class="w-3 h-3" />
+                        </Button>
+                      </div>
+                      <EndpointConditionEditor
+                        v-if="rule.condition"
+                        :model-value="rule.condition"
+                        path-hint="请求体字段路径"
+                        removable
+                        @update:model-value="(condition) => updateEndpointRuleCondition(endpoint.id, index, condition)"
+                        @remove="clearEndpointRuleCondition(endpoint.id, index)"
+                      />
+                    </template>
 
                     <div
                       v-if="getEndpointEditBodyRules(endpoint.id).length > 0"
@@ -397,14 +418,15 @@
                                 <code>exists</code> <code>not_exists</code> 字段存在性<br>
                                 <code>in</code> 在列表中（值填 <code>["a","b"]</code>）<br>
                                 <code>type_is</code> 类型判断（string/number/boolean/array/object/null）<br>
-                                条件路径支持 <code>$item.xxx</code> 引用通配符当前元素
+                                条件路径支持 <code>$item.xxx</code> 引用通配符当前元素<br>
+                                可切换 <code>Current</code>/<code>Original</code> 数据源，并支持 <code>ALL</code>/<code>ANY</code> 组合条件
                               </div>
                             </div>
                             <div class="text-muted-foreground">
                               规则按顺序执行，前面的修改对后续规则可见。
                             </div>
                             <div class="text-muted-foreground">
-                              规则在格式转换之后执行，路径需按目标提供商的请求体结构填写。
+                              规则默认在格式转换后按目标提供商结构匹配；条件切到 <code>Original</code> 时则按客户端原始请求体匹配。
                             </div>
                           </div>
                         </PopoverContent>
@@ -474,7 +496,7 @@
                           variant="ghost"
                           size="icon"
                           class="h-7 w-7 shrink-0"
-                          :class="rule.conditionEnabled ? 'text-primary' : ''"
+                          :class="rule.condition ? 'text-primary' : ''"
                           title="条件触发"
                           @click="toggleBodyRuleCondition(endpoint.id, index)"
                         >
@@ -638,80 +660,14 @@
                           <X class="w-3 h-3" />
                         </Button>
                       </div>
-                      <!-- 条件编辑行 -->
-                      <div
-                        v-if="rule.conditionEnabled"
-                        class="flex items-center gap-1.5 px-2 py-1 ml-6 rounded-md bg-muted/20"
-                      >
-                        <span class="text-[10px] font-semibold text-muted-foreground shrink-0">IF</span>
-                        <Input
-                          :model-value="rule.conditionPath"
-                          :placeholder="rule.path?.includes('[*]') || rule.path?.match(/\[\d+-\d+\]/) ? '$item.字段名' : '字段路径'"
-                          size="sm"
-                          class="flex-1 min-w-0 h-7 text-xs"
-                          @update:model-value="(v) => updateEndpointBodyRuleField(endpoint.id, index, 'conditionPath', v)"
-                        />
-                        <Select
-                          :model-value="rule.conditionOp"
-                          @update:model-value="(v: string) => updateEndpointBodyRuleField(endpoint.id, index, 'conditionOp', v)"
-                        >
-                          <SelectTrigger class="w-[100px] h-7 text-xs shrink-0">
-                            <SelectValue />
-                          </SelectTrigger>
-                          <SelectContent>
-                            <SelectItem value="eq">
-                              等于
-                            </SelectItem>
-                            <SelectItem value="neq">
-                              不等于
-                            </SelectItem>
-                            <SelectItem value="gt">
-                              大于
-                            </SelectItem>
-                            <SelectItem value="lt">
-                              小于
-                            </SelectItem>
-                            <SelectItem value="gte">
-                              大于等于
-                            </SelectItem>
-                            <SelectItem value="lte">
-                              小于等于
-                            </SelectItem>
-                            <SelectItem value="starts_with">
-                              开头匹配
-                            </SelectItem>
-                            <SelectItem value="ends_with">
-                              结尾匹配
-                            </SelectItem>
-                            <SelectItem value="contains">
-                              包含
-                            </SelectItem>
-                            <SelectItem value="matches">
-                              正则匹配
-                            </SelectItem>
-                            <SelectItem value="exists">
-                              存在
-                            </SelectItem>
-                            <SelectItem value="not_exists">
-                              不存在
-                            </SelectItem>
-                            <SelectItem value="in">
-                              在列表中
-                            </SelectItem>
-                            <SelectItem value="type_is">
-                              类型是
-                            </SelectItem>
-                          </SelectContent>
-                        </Select>
-                        <Input
-                          v-if="rule.conditionOp !== 'exists' && rule.conditionOp !== 'not_exists'"
-                          :model-value="rule.conditionValue"
-                          :placeholder="rule.conditionOp === 'in' ? '[&quot;a&quot;, &quot;b&quot;]' : rule.conditionOp === 'type_is' ? 'string/number/boolean/...' : '值'"
-                          size="sm"
-                          class="flex-1 min-w-0 h-7 text-xs"
-                          @update:model-value="(v) => updateEndpointBodyRuleField(endpoint.id, index, 'conditionValue', v)"
-                        />
-                      </div>
+                      <EndpointConditionEditor
+                        v-if="rule.condition"
+                        :model-value="rule.condition"
+                        :path-hint="getBodyRuleConditionPathPlaceholder(rule.path)"
+                        removable
+                        @update:model-value="(condition) => updateEndpointBodyRuleCondition(endpoint.id, index, condition)"
+                        @remove="clearEndpointBodyRuleCondition(endpoint.id, index)"
+                      />
                     </template>
                   </div>
                 </CollapsibleContent>
@@ -839,6 +795,7 @@ import { useToast } from '@/composables/useToast'
 import { parseApiError } from '@/utils/errorParser'
 import { log } from '@/utils/logger'
 import AlertDialog from '@/components/common/AlertDialog.vue'
+import EndpointConditionEditor from './EndpointConditionEditor.vue'
 import {
   createEndpoint,
   getDefaultBodyRules,
@@ -850,11 +807,18 @@ import {
   type BodyRule,
   type BodyRuleRegexReplace,
   type BodyRuleNameStyle,
-  type BodyRuleCondition,
-  type BodyRuleConditionOp,
 } from '@/api/endpoints'
 import { adminApi } from '@/api/admin'
 import { formatApiFormat } from '@/api/endpoints/types/api-format'
+import {
+  conditionEquals,
+  conditionToEditable,
+  createEmptyConditionLeaf,
+  editableConditionToApi,
+  getBodyRuleConditionPathPlaceholder,
+  type EditableConditionNode,
+  validateEditableCondition,
+} from './endpoint-rule-condition'
 
 // 编辑用的规则类型（统一的可编辑结构）
 interface EditableRule {
@@ -863,6 +827,7 @@ interface EditableRule {
   value: string    // set 用
   from: string     // rename 用
   to: string       // rename 用
+  condition: EditableConditionNode | null
 }
 
 // 编辑用的请求体规则类型
@@ -879,10 +844,7 @@ interface EditableBodyRule {
   replacement: string // regex_replace 用
   flags: string    // regex_replace 用（i/m/s）
   style: string    // name_style 用（snake_case/camelCase/PascalCase/kebab-case/capitalize）
-  conditionEnabled: boolean  // 是否启用条件
-  conditionPath: string
-  conditionOp: string
-  conditionValue: string     // JSON 格式字符串（保存时 parse）
+  condition: EditableConditionNode | null
 }
 
 // 端点编辑状态（仅 URL、路径、规则，格式转换是直接保存的）
@@ -1346,57 +1308,62 @@ function getEndpointUpstreamStreamPolicy(endpoint: ProviderEndpoint): string {
   return 'auto'
 }
 
+function emptyHeaderRule(): EditableRule {
+  return { action: 'set', key: '', value: '', from: '', to: '', condition: null }
+}
+
+function emptyBodyRule(action: BodyRuleAction = 'set'): EditableBodyRule {
+  return {
+    action,
+    path: '',
+    value: '',
+    from: '',
+    to: '',
+    index: '',
+    pattern: '',
+    replacement: '',
+    flags: '',
+    style: '',
+    condition: null,
+  }
+}
+
 // 初始化端点的编辑状态
 function initEndpointEditState(endpoint: ProviderEndpoint): EndpointEditState {
   const rules: EditableRule[] = []
   if (endpoint.header_rules && endpoint.header_rules.length > 0) {
     for (const rule of endpoint.header_rules) {
       if (rule.action === 'set') {
-        rules.push({ action: 'set', key: rule.key, value: rule.value || '', from: '', to: '' })
+        rules.push({ ...emptyHeaderRule(), action: 'set', key: rule.key, value: rule.value || '', condition: conditionToEditable(rule.condition) })
       } else if (rule.action === 'drop') {
-        rules.push({ action: 'drop', key: rule.key, value: '', from: '', to: '' })
+        rules.push({ ...emptyHeaderRule(), action: 'drop', key: rule.key, condition: conditionToEditable(rule.condition) })
       } else if (rule.action === 'rename') {
-        rules.push({ action: 'rename', key: '', value: '', from: rule.from, to: rule.to })
+        rules.push({ ...emptyHeaderRule(), action: 'rename', from: rule.from, to: rule.to, condition: conditionToEditable(rule.condition) })
       }
     }
   }
 
-  const emptyBodyRule = (): Omit<EditableBodyRule, 'action'> => ({
-    path: '', value: '', from: '', to: '', index: '', pattern: '', replacement: '', flags: '', style: '',
-    conditionEnabled: false, conditionPath: '', conditionOp: 'eq', conditionValue: '',
-  })
-
   const bodyRules: EditableBodyRule[] = []
   if (endpoint.body_rules && endpoint.body_rules.length > 0) {
     for (const rule of endpoint.body_rules) {
-      // 提取 condition 信息
-      const conditionFields = rule.condition ? {
-        conditionEnabled: true,
-        conditionPath: rule.condition.path || '',
-        conditionOp: rule.condition.op || 'eq',
-        conditionValue: rule.condition.value !== undefined
-          ? (typeof rule.condition.value === 'string' ? rule.condition.value : JSON.stringify(rule.condition.value))
-          : '',
-      } : {}
-
       if (rule.action === 'set') {
         const { value } = initBodyRuleSetValueForEditor(rule.value)
-        bodyRules.push({ ...emptyBodyRule(), action: 'set', path: rule.path, value, ...conditionFields })
+        bodyRules.push({ ...emptyBodyRule('set'), path: rule.path, value, condition: conditionToEditable(rule.condition) })
       } else if (rule.action === 'drop') {
-        bodyRules.push({ ...emptyBodyRule(), action: 'drop', path: rule.path, ...conditionFields })
+        bodyRules.push({ ...emptyBodyRule('drop'), path: rule.path, condition: conditionToEditable(rule.condition) })
       } else if (rule.action === 'rename') {
-        bodyRules.push({ ...emptyBodyRule(), action: 'rename', from: rule.from, to: rule.to, ...conditionFields })
+        bodyRules.push({ ...emptyBodyRule('rename'), from: rule.from, to: rule.to, condition: conditionToEditable(rule.condition) })
       } else if (rule.action === 'append') {
         // 前端将 append 统一展示为 insert（index 留空），保存时再根据 index 是否为空转回 append
         const { value } = initBodyRuleSetValueForEditor(rule.value)
-        bodyRules.push({ ...emptyBodyRule(), action: 'insert', path: rule.path || '', value, index: '', ...conditionFields })
+        bodyRules.push({ ...emptyBodyRule('insert'), path: rule.path || '', value, index: '', condition: conditionToEditable(rule.condition) })
       } else if (rule.action === 'insert') {
         const { value } = initBodyRuleSetValueForEditor(rule.value)
-        bodyRules.push({ ...emptyBodyRule(), action: 'insert', path: rule.path || '', value, index: String(rule.index ?? ''), ...conditionFields })
+        bodyRules.push({ ...emptyBodyRule('insert'), path: rule.path || '', value, index: String(rule.index ?? ''), condition: conditionToEditable(rule.condition) })
       } else if (rule.action === 'regex_replace') {
-        bodyRules.push({ ...emptyBodyRule(), action: 'regex_replace', path: rule.path || '', pattern: rule.pattern || '', replacement: rule.replacement || '', flags: rule.flags || '', ...conditionFields })
+        bodyRules.push({ ...emptyBodyRule('regex_replace'), path: rule.path || '', pattern: rule.pattern || '', replacement: rule.replacement || '', flags: rule.flags || '', condition: conditionToEditable(rule.condition) })
       } else if (rule.action === 'name_style') {
-        bodyRules.push({ ...emptyBodyRule(), action: 'name_style', path: rule.path || '', style: rule.style || 'capitalize', ...conditionFields })
+        bodyRules.push({ ...emptyBodyRule('name_style'), path: rule.path || '', style: rule.style || 'capitalize', condition: conditionToEditable(rule.condition) })
       }
     }
   }
@@ -1447,7 +1414,7 @@ function getEndpointEditRules(endpointId: string): EditableRule[] {
 // 添加规则（同时自动展开折叠）
 function handleAddEndpointRule(endpointId: string) {
   const rules = getEndpointEditRules(endpointId)
-  rules.push({ action: 'set', key: '', value: '', from: '', to: '' })
+  rules.push(emptyHeaderRule())
   // 自动展开折叠
   endpointRulesExpanded.value[endpointId] = true
 }
@@ -1464,11 +1431,8 @@ function removeEndpointRule(endpointId: string, index: number) {
 function updateEndpointRuleAction(endpointId: string, index: number, action: 'set' | 'drop' | 'rename') {
   const rules = getEndpointEditRules(endpointId)
   if (rules[index]) {
-    rules[index].action = action
-    rules[index].key = ''
-    rules[index].value = ''
-    rules[index].from = ''
-    rules[index].to = ''
+    const currentCondition = rules[index].condition
+    rules[index] = { ...emptyHeaderRule(), action, condition: currentCondition }
   }
 }
 
@@ -1480,6 +1444,27 @@ function updateEndpointRuleField(endpointId: string, index: number, field: 'key'
   }
 }
 
+function toggleEndpointRuleCondition(endpointId: string, index: number) {
+  const rules = getEndpointEditRules(endpointId)
+  if (rules[index]) {
+    rules[index].condition = rules[index].condition ? null : createEmptyConditionLeaf()
+  }
+}
+
+function updateEndpointRuleCondition(endpointId: string, index: number, condition: EditableConditionNode) {
+  const rules = getEndpointEditRules(endpointId)
+  if (rules[index]) {
+    rules[index].condition = condition
+  }
+}
+
+function clearEndpointRuleCondition(endpointId: string, index: number) {
+  const rules = getEndpointEditRules(endpointId)
+  if (rules[index]) {
+    rules[index].condition = null
+  }
+}
+
 // 验证规则 key（针对特定端点）
 function validateRuleKeyForEndpoint(endpointId: string, key: string, index: number): string | null {
   const trimmedKey = key.trim().toLowerCase()
@@ -1587,7 +1572,7 @@ function getEndpointEditBodyRules(endpointId: string): EditableBodyRule[] {
 // 添加请求体规则（同时自动展开折叠）
 function handleAddEndpointBodyRule(endpointId: string) {
   const rules = getEndpointEditBodyRules(endpointId)
-  rules.push({ action: 'set', path: '', value: '', from: '', to: '', index: '', pattern: '', replacement: '', flags: '', style: '', conditionEnabled: false, conditionPath: '', conditionOp: 'eq', conditionValue: '' })
+  rules.push(emptyBodyRule('set'))
   // 自动展开折叠
   endpointRulesExpanded.value[endpointId] = true
 }
@@ -1604,32 +1589,37 @@ function removeEndpointBodyRule(endpointId: string, index: number) {
 function updateEndpointBodyRuleAction(endpointId: string, index: number, action: BodyRuleAction) {
   const rules = getEndpointEditBodyRules(endpointId)
   if (rules[index]) {
-    rules[index].action = action
-    rules[index].path = ''
-    rules[index].value = ''
-    rules[index].from = ''
-    rules[index].to = ''
-    rules[index].index = ''
-    rules[index].pattern = ''
-    rules[index].replacement = ''
-    rules[index].flags = ''
-    rules[index].style = ''
+    const currentCondition = rules[index].condition
+    rules[index] = { ...emptyBodyRule(action), condition: currentCondition }
   }
 }
 
 // 更新请求体规则字段
-function updateEndpointBodyRuleField(endpointId: string, index: number, field: 'path' | 'value' | 'from' | 'to' | 'index' | 'pattern' | 'replacement' | 'flags' | 'style' | 'conditionPath' | 'conditionOp' | 'conditionValue', value: string) {
+function updateEndpointBodyRuleField(endpointId: string, index: number, field: 'path' | 'value' | 'from' | 'to' | 'index' | 'pattern' | 'replacement' | 'flags' | 'style', value: string) {
   const rules = getEndpointEditBodyRules(endpointId)
   if (rules[index]) {
     rules[index][field] = value
   }
 }
 
-// 切换请求体规则的条件启用状态
 function toggleBodyRuleCondition(endpointId: string, index: number) {
   const rules = getEndpointEditBodyRules(endpointId)
   if (rules[index]) {
-    rules[index].conditionEnabled = !rules[index].conditionEnabled
+    rules[index].condition = rules[index].condition ? null : createEmptyConditionLeaf()
+  }
+}
+
+function updateEndpointBodyRuleCondition(endpointId: string, index: number, condition: EditableConditionNode) {
+  const rules = getEndpointEditBodyRules(endpointId)
+  if (rules[index]) {
+    rules[index].condition = condition
+  }
+}
+
+function clearEndpointBodyRuleCondition(endpointId: string, index: number) {
+  const rules = getEndpointEditBodyRules(endpointId)
+  if (rules[index]) {
+    rules[index].condition = null
   }
 }
 
@@ -1657,7 +1647,7 @@ function validateBodyRulePathForEndpoint(endpointId: string, path: string, index
   const currentRule = rules[index]
   // 任意一方启用了条件，则不视为冲突（条件可能互斥，真正冲突在运行时处理）
   const duplicate = rules.findIndex(
-    (r, i) => i !== index && !currentRule.conditionEnabled && !r.conditionEnabled && (
+    (r, i) => i !== index && !currentRule.condition && !r.condition && (
       ((r.action === 'set' || r.action === 'drop') && r.path.trim().toLowerCase() === normalizedPath) ||
       (r.action === 'rename' && r.to.trim().toLowerCase() === normalizedPath)
     )
@@ -1689,7 +1679,7 @@ function validateBodyRenameFromForEndpoint(endpointId: string, from: string, ind
   const rules = getEndpointEditBodyRules(endpointId)
   const currentRule = rules[index]
   const duplicate = rules.findIndex(
-    (r, i) => i !== index && !currentRule.conditionEnabled && !r.conditionEnabled &&
+    (r, i) => i !== index && !currentRule.condition && !r.condition &&
       ((r.action === 'set' && r.path.trim().toLowerCase() === normalizedFrom) ||
        (r.action === 'drop' && r.path.trim().toLowerCase() === normalizedFrom) ||
        (r.action === 'rename' && r.from.trim().toLowerCase() === normalizedFrom))
@@ -1721,7 +1711,7 @@ function validateBodyRenameToForEndpoint(endpointId: string, to: string, index:
   const rules = getEndpointEditBodyRules(endpointId)
   const currentRule = rules[index]
   const duplicate = rules.findIndex(
-    (r, i) => i !== index && !currentRule.conditionEnabled && !r.conditionEnabled &&
+    (r, i) => i !== index && !currentRule.condition && !r.condition &&
       ((r.action === 'set' && r.path.trim().toLowerCase() === normalizedTo) ||
        (r.action === 'rename' && r.to.trim().toLowerCase() === normalizedTo))
   )
@@ -1932,17 +1922,7 @@ function hasBodyRulesChanges(endpoint: ProviderEndpoint): boolean {
       if (edited.path !== (original.path ?? '')) return true
       if (edited.style !== (original.style ?? '')) return true
     }
-    // 条件变更检测
-    const origCond = original.condition
-    if (edited.conditionEnabled !== !!origCond) return true
-    if (edited.conditionEnabled && origCond) {
-      if (edited.conditionPath !== origCond.path) return true
-      if (edited.conditionOp !== origCond.op) return true
-      const origVal = origCond.value !== undefined
-        ? (typeof origCond.value === 'string' ? origCond.value : JSON.stringify(origCond.value))
-        : ''
-      if (edited.conditionValue !== origVal) return true
-    }
+    if (!conditionEquals(edited.condition, conditionToEditable(original.condition))) return true
   }
   return false
 }
@@ -1951,21 +1931,8 @@ function hasBodyRulesChanges(endpoint: ProviderEndpoint): boolean {
 function rulesToBodyRules(rules: EditableBodyRule[]): BodyRule[] | null {
   const result: BodyRule[] = []
 
-  // 构建 condition 对象（如果启用且有效）
-  function buildCondition(rule: EditableBodyRule): BodyRuleCondition | undefined {
-    if (!rule.conditionEnabled || !rule.conditionPath.trim() || !rule.conditionOp.trim()) return undefined
-    const op = rule.conditionOp as BodyRuleConditionOp
-    if (op === 'exists' || op === 'not_exists') {
-      return { path: rule.conditionPath.trim(), op }
-    }
-    const raw = rule.conditionValue.trim()
-    let val: unknown = raw
-    try { val = JSON.parse(raw) } catch { /* 保留原字符串 */ }
-    return { path: rule.conditionPath.trim(), op, value: val }
-  }
-
   for (const rule of rules) {
-    const condition = buildCondition(rule)
+    const condition = editableConditionToApi(rule.condition)
     if (rule.action === 'set' && rule.path.trim()) {
       let value: unknown = rule.value
       try { value = restoreOriginalPlaceholder(JSON.parse(prepareValueForJsonParse(rule.value.trim()))) } catch { value = rule.value }
@@ -2049,6 +2016,9 @@ function getBodyValidationErrorForEndpoint(endpointId: string): string | null {
       const validStyles = new Set(['snake_case', 'camelCase', 'PascalCase', 'kebab-case', 'capitalize'])
       if (!rule.style.trim() || !validStyles.has(rule.style.trim())) return `${prefix}请选择有效的命名风格`
     }
+
+    const conditionErr = validateEditableCondition(rule.condition)
+    if (conditionErr) return `${prefix}${conditionErr}`
   }
   return null
 }
@@ -2092,6 +2062,7 @@ function hasRulesChanges(endpoint: ProviderEndpoint): boolean {
     } else if (edited.action === 'rename' && original.action === 'rename') {
       if (edited.from !== original.from || edited.to !== original.to) return true
     }
+    if (!conditionEquals(edited.condition, conditionToEditable(original.condition))) return true
   }
   return false
 }
@@ -2143,31 +2114,37 @@ function rulesToHeaderRules(rules: EditableRule[]): HeaderRule[] | null {
   const result: HeaderRule[] = []
 
   for (const rule of rules) {
+    const condition = editableConditionToApi(rule.condition)
     if (rule.action === 'set' && rule.key.trim()) {
-      result.push({ action: 'set', key: rule.key.trim(), value: rule.value })
+      result.push({ action: 'set', key: rule.key.trim(), value: rule.value, ...(condition ? { condition } : {}) })
     } else if (rule.action === 'drop' && rule.key.trim()) {
-      result.push({ action: 'drop', key: rule.key.trim() })
+      result.push({ action: 'drop', key: rule.key.trim(), ...(condition ? { condition } : {}) })
     } else if (rule.action === 'rename' && rule.from.trim() && rule.to.trim()) {
-      result.push({ action: 'rename', from: rule.from.trim(), to: rule.to.trim() })
+      result.push({ action: 'rename', from: rule.from.trim(), to: rule.to.trim(), ...(condition ? { condition } : {}) })
     }
   }
 
   return result.length > 0 ? result : null
 }
 
-// 检查规则是否有验证错误
-function hasValidationErrorsForEndpoint(endpointId: string): boolean {
+function getHeaderValidationErrorForEndpoint(endpointId: string): string | null {
   const rules = getEndpointEditRules(endpointId)
   for (let i = 0; i < rules.length; i++) {
     const rule = rules[i]
+    const prefix = `第 ${i + 1} 条请求头规则：`
     if (rule.action === 'set' || rule.action === 'drop') {
-      if (validateRuleKeyForEndpoint(endpointId, rule.key, i)) return true
+      const err = validateRuleKeyForEndpoint(endpointId, rule.key, i)
+      if (err) return `${prefix}${err}`
     } else if (rule.action === 'rename') {
-      if (validateRenameFromForEndpoint(endpointId, rule.from, i)) return true
-      if (validateRenameToForEndpoint(endpointId, rule.to, i)) return true
+      const fromErr = validateRenameFromForEndpoint(endpointId, rule.from, i)
+      if (fromErr) return `${prefix}${fromErr}`
+      const toErr = validateRenameToForEndpoint(endpointId, rule.to, i)
+      if (toErr) return `${prefix}${toErr}`
     }
+    const conditionErr = validateEditableCondition(rule.condition)
+    if (conditionErr) return `${prefix}${conditionErr}`
   }
-  return false
+  return null
 }
 
 // 新端点选择的格式的默认路径
@@ -2243,8 +2220,9 @@ async function saveEndpoint(endpoint: ProviderEndpoint) {
   if (!state || !state.url) return
 
   // 检查规则是否有验证错误
-  if (hasValidationErrorsForEndpoint(endpoint.id)) {
-    showError('请修正请求头规则中的错误')
+  const headerErr = getHeaderValidationErrorForEndpoint(endpoint.id)
+  if (headerErr) {
+    showError(headerErr)
     return
   }
 

frontend/src/features/providers/components/endpoint-rule-condition.ts

@@ -0,0 +1,233 @@
+import type { BodyRuleCondition, BodyRuleConditionOp } from '@/api/endpoints'
+
+export type ConditionSource = 'current' | 'original'
+export type ConditionGroupMode = 'all' | 'any'
+
+export interface EditableConditionLeaf {
+  kind: 'leaf'
+  path: string
+  op: BodyRuleConditionOp
+  value: string
+  source: ConditionSource
+}
+
+export interface EditableConditionGroup {
+  kind: 'group'
+  mode: ConditionGroupMode
+  children: EditableConditionNode[]
+}
+
+export type EditableConditionNode = EditableConditionLeaf | EditableConditionGroup
+
+export const CONDITION_OP_OPTIONS: Array<{ value: BodyRuleConditionOp; label: string }> = [
+  { value: 'eq', label: '等于' },
+  { value: 'neq', label: '不等于' },
+  { value: 'gt', label: '大于' },
+  { value: 'lt', label: '小于' },
+  { value: 'gte', label: '大于等于' },
+  { value: 'lte', label: '小于等于' },
+  { value: 'starts_with', label: '开头匹配' },
+  { value: 'ends_with', label: '结尾匹配' },
+  { value: 'contains', label: '包含' },
+  { value: 'matches', label: '正则匹配' },
+  { value: 'exists', label: '存在' },
+  { value: 'not_exists', label: '不存在' },
+  { value: 'in', label: '在列表中' },
+  { value: 'type_is', label: '类型是' },
+]
+
+const NUMERIC_OPS = new Set(['gt', 'lt', 'gte', 'lte'])
+const STRING_OPS = new Set(['starts_with', 'ends_with'])
+const TYPE_IS_VALUES = new Set(['string', 'number', 'boolean', 'array', 'object', 'null'])
+
+export function createEmptyConditionLeaf(): EditableConditionLeaf {
+  return {
+    kind: 'leaf',
+    path: '',
+    op: 'eq',
+    value: '',
+    source: 'current',
+  }
+}
+
+export function createConditionGroup(
+  mode: ConditionGroupMode = 'all',
+  children: EditableConditionNode[] = [createEmptyConditionLeaf()],
+): EditableConditionGroup {
+  return {
+    kind: 'group',
+    mode,
+    children,
+  }
+}
+
+export function cloneEditableCondition(node: EditableConditionNode): EditableConditionNode {
+  if (node.kind === 'group') {
+    return {
+      kind: 'group',
+      mode: node.mode,
+      children: node.children.map(cloneEditableCondition),
+    }
+  }
+  return { ...node }
+}
+
+export function conditionToEditable(condition?: BodyRuleCondition | null): EditableConditionNode | null {
+  if (!condition) return null
+  if ('all' in condition) {
+    return createConditionGroup(
+      'all',
+      condition.all.map(child => conditionToEditable(child) || createEmptyConditionLeaf()),
+    )
+  }
+  if ('any' in condition) {
+    return createConditionGroup(
+      'any',
+      condition.any.map(child => conditionToEditable(child) || createEmptyConditionLeaf()),
+    )
+  }
+  return {
+    kind: 'leaf',
+    path: condition.path || '',
+    op: condition.op || 'eq',
+    value: condition.value !== undefined
+      ? (typeof condition.value === 'string' ? condition.value : JSON.stringify(condition.value))
+      : '',
+    source: condition.source === 'original' ? 'original' : 'current',
+  }
+}
+
+export function editableConditionToApi(node: EditableConditionNode | null): BodyRuleCondition | undefined {
+  if (!node) return undefined
+
+  if (node.kind === 'group') {
+    const children = node.children
+      .map(child => editableConditionToApi(child))
+      .filter((child): child is BodyRuleCondition => !!child)
+    if (!children.length) return undefined
+    return node.mode === 'all' ? { all: children } : { any: children }
+  }
+
+  const path = node.path.trim()
+  if (!path) return undefined
+
+  const base = {
+    path,
+    op: node.op,
+    ...(node.source === 'original' ? { source: 'original' as const } : {}),
+  }
+
+  if (node.op === 'exists' || node.op === 'not_exists') {
+    return base
+  }
+
+  const raw = node.value.trim()
+  if (!raw) {
+    return { ...base, value: '' }
+  }
+
+  try {
+    return { ...base, value: JSON.parse(raw) }
+  } catch {
+    return { ...base, value: raw }
+  }
+}
+
+export function isConditionValueRequired(op: BodyRuleConditionOp): boolean {
+  return op !== 'exists' && op !== 'not_exists'
+}
+
+export function getConditionValuePlaceholder(op: BodyRuleConditionOp): string {
+  if (op === 'in') return '["a", "b"]'
+  if (op === 'type_is') return 'string/number/boolean/...'
+  return '值'
+}
+
+export function getBodyRuleConditionPathPlaceholder(path: string): string {
+  return path.includes('[*]') || /\[\d+-\d+\]/.test(path) ? '$item.字段名' : '字段路径'
+}
+
+export function conditionEquals(
+  left: EditableConditionNode | null,
+  right: EditableConditionNode | null,
+): boolean {
+  if (left === right) return true
+  if (!left || !right) return false
+  if (left.kind !== right.kind) return false
+
+  if (left.kind === 'group' && right.kind === 'group') {
+    if (left.mode !== right.mode) return false
+    if (left.children.length !== right.children.length) return false
+    return left.children.every((child, i) => conditionEquals(child, right.children[i]))
+  }
+
+  if (left.kind === 'leaf' && right.kind === 'leaf') {
+    return left.path === right.path
+      && left.op === right.op
+      && left.value === right.value
+      && left.source === right.source
+  }
+
+  return false
+}
+
+export function validateEditableCondition(node: EditableConditionNode | null): string | null {
+  if (!node) return null
+
+  if (node.kind === 'group') {
+    if (!node.children.length) return '组合条件至少需要一个子条件'
+    for (let i = 0; i < node.children.length; i += 1) {
+      const err = validateEditableCondition(node.children[i])
+      if (err) return `子条件 ${i + 1}: ${err}`
+    }
+    return null
+  }
+
+  const path = node.path.trim()
+  if (!path) return '条件路径不能为空'
+
+  if (!isConditionValueRequired(node.op)) return null
+
+  const raw = node.value.trim()
+  let parsed: unknown = raw
+  if (raw) {
+    try {
+      parsed = JSON.parse(raw)
+    } catch {
+      parsed = raw
+    }
+  }
+
+  if (NUMERIC_OPS.has(node.op)) {
+    if (typeof parsed !== 'number' || Number.isNaN(parsed)) return '数值条件必须填写数字'
+    return null
+  }
+
+  if (STRING_OPS.has(node.op)) {
+    if (typeof parsed !== 'string') return '该条件值必须为字符串'
+    return null
+  }
+
+  if (node.op === 'matches') {
+    if (typeof parsed !== 'string' || !parsed) return '正则条件值不能为空'
+    try {
+      new RegExp(parsed)
+      return null
+    } catch (error: unknown) {
+      return `正则表达式无效：${error instanceof Error ? error.message : String(error)}`
+    }
+  }
+
+  if (node.op === 'in') {
+    if (!Array.isArray(parsed)) return 'in 条件值必须是 JSON 数组'
+    return null
+  }
+
+  if (node.op === 'type_is') {
+    if (typeof parsed !== 'string' || !TYPE_IS_VALUES.has(parsed)) {
+      return 'type_is 仅支持 string/number/boolean/array/object/null'
+    }
+  }
+
+  return null
+}

src/api/handlers/base/handler_adapter_base.py

@@ -366,7 +366,7 @@ class HandlerAdapterBase(ApiAdapter):
         统一的 endpoint 测试方法，支持 OAuth/Antigravity/Kiro 等特殊路由。
         """
         from src.api.handlers.base.endpoint_checker import run_endpoint_check
-        from src.api.handlers.base.request_builder import apply_body_rules
+        from src.api.handlers.base.request_builder import apply_body_rules, evaluate_condition
         from src.core.api_format.headers import HeaderBuilder
         from src.core.provider_types import ProviderType
 
@@ -507,7 +507,7 @@ class HandlerAdapterBase(ApiAdapter):
         )
 
         if body_rules:
-            body = apply_body_rules(body, body_rules)
+            body = apply_body_rules(body, body_rules, original_body=body)
 
         if is_antigravity:
             from src.services.provider.adapters.antigravity.envelope import (
@@ -560,7 +560,13 @@ class HandlerAdapterBase(ApiAdapter):
 
             header_builder = HeaderBuilder()
             header_builder.add_many(headers)
-            header_builder.apply_rules(header_rules, protected_keys)
+            header_builder.apply_rules(
+                header_rules,
+                protected_keys,
+                body=body,
+                original_body=body,
+                condition_evaluator=evaluate_condition,
+            )
             headers = header_builder.build()
 
         # ---- Execute ----

src/api/handlers/base/request_builder.py

@@ -599,10 +599,24 @@ _ITEM_PREFIX = "$item."
 _ITEM_EXACT = "$item"
 
 
+def _get_condition_children(
+    condition: dict[str, Any],
+) -> tuple[str, list[Any]] | None:
+    """如果 condition 是 all/any 组合节点，返回 (key, children)；否则返回 None。"""
+    for key in ("all", "any"):
+        children = condition.get(key)
+        if isinstance(children, list):
+            return key, children
+    return None
+
+
 def _has_item_ref(condition: dict[str, Any] | None) -> bool:
     """检查 condition 的 path 是否包含 $item 引用"""
     if not condition or not isinstance(condition, dict):
         return False
+    group = _get_condition_children(condition)
+    if group is not None:
+        return any(_has_item_ref(c) for c in group[1] if isinstance(c, dict))
     path = condition.get("path", "")
     return isinstance(path, str) and (
         path.strip().startswith(_ITEM_PREFIX) or path.strip() == _ITEM_EXACT
@@ -624,6 +638,16 @@ def _resolve_item_condition(
         item_path_prefix = "tools[0]"
         -> {"path": "tools[0]", "op": "type_is", "value": "object"}
     """
+    group = _get_condition_children(condition)
+    if group is not None:
+        key, children = group
+        return {
+            key: [
+                _resolve_item_condition(c, item_path_prefix) if isinstance(c, dict) else c
+                for c in children
+            ]
+        }
+
     resolved = dict(condition)
     raw_path = resolved.get("path", "").strip()
     if raw_path == _ITEM_EXACT:
@@ -667,6 +691,7 @@ def _iter_wildcard_targets(
     condition: dict[str, Any] | None,
     item_condition: bool,
     *,
+    original_body: dict[str, Any] | None = None,
     require_leaf: bool = False,
     reverse: bool = False,
 ) -> list[str]:
@@ -696,7 +721,7 @@ def _iter_wildcard_targets(
         if item_condition:
             prefix = _get_item_prefix_from_concrete(concrete_segs, parts)
             resolved = _resolve_item_condition(condition, prefix)  # type: ignore[arg-type]
-            if not _evaluate_condition(result, resolved):
+            if not evaluate_condition(result, resolved, original_body=original_body):
                 continue
         targets.append(_segments_to_path(concrete_segs))
     return targets
@@ -715,7 +740,11 @@ _SIMPLE_TYPE_MAP: dict[str, type] = {
 }
 
 
-def _evaluate_condition(body: dict[str, Any], condition: dict[str, Any]) -> bool:
+def evaluate_condition(
+    body: dict[str, Any],
+    condition: dict[str, Any],
+    original_body: dict[str, Any] | None = None,
+) -> bool:
     """
     评估单个条件表达式，决定规则是否应该执行。
 
@@ -726,6 +755,24 @@ def _evaluate_condition(body: dict[str, Any], condition: dict[str, Any]) -> bool
     if not isinstance(condition, dict):
         return False
 
+    if "all" in condition:
+        children = condition.get("all")
+        if not isinstance(children, list) or not children:
+            return False
+        return all(
+            isinstance(child, dict) and evaluate_condition(body, child, original_body=original_body)
+            for child in children
+        )
+
+    if "any" in condition:
+        children = condition.get("any")
+        if not isinstance(children, list) or not children:
+            return False
+        return any(
+            isinstance(child, dict) and evaluate_condition(body, child, original_body=original_body)
+            for child in children
+        )
+
     op = condition.get("op")
     if not isinstance(op, str) or op not in _CONDITION_OPS:
         return False
@@ -734,7 +781,12 @@ def _evaluate_condition(body: dict[str, Any], condition: dict[str, Any]) -> bool
     if not isinstance(path, str) or not path.strip():
         return False
 
-    found, current_val = _get_nested_value(body, path.strip())
+    source = condition.get("source", "current")
+    if not isinstance(source, str) or source not in {"current", "original"}:
+        return False
+    target = original_body if source == "original" and original_body is not None else body
+
+    found, current_val = _get_nested_value(target, path.strip())
 
     # 存在性检查：不需要 value
     if op == "exists":
@@ -817,6 +869,7 @@ def apply_body_rules(
     body: dict[str, Any],
     rules: list[dict[str, Any]],
     protected_keys: frozenset[str] | None = None,
+    original_body: dict[str, Any] | None = None,
 ) -> dict[str, Any]:
     """
     应用请求体规则
@@ -848,6 +901,7 @@ def apply_body_rules(
         body: 原始请求体
         rules: 规则列表
         protected_keys: 受保护的字段（不能被 set/drop/rename 修改）
+        original_body: 条件评估使用的原始请求体；未提供时回退到当前 body
 
     Returns:
         应用规则后的请求体
@@ -870,7 +924,7 @@ def apply_body_rules(
         condition = rule.get("condition")
         item_condition = _has_item_ref(condition)
         if condition is not None and not item_condition:
-            if not _evaluate_condition(result, condition):
+            if not evaluate_condition(result, condition, original_body=original_body):
                 continue
 
         action = rule.get("action")
@@ -884,7 +938,7 @@ def apply_body_rules(
                 continue
             parts = _parse_path(path)
             for target_path in _iter_wildcard_targets(
-                result, path, parts, condition, item_condition
+                result, path, parts, condition, item_condition, original_body=original_body
             ):
                 value = rule.get("value")
                 if _contains_original_placeholder(value):
@@ -903,6 +957,7 @@ def apply_body_rules(
                 parts,
                 condition,
                 item_condition,
+                original_body=original_body,
                 require_leaf=True,
                 reverse=True,
             ):
@@ -940,7 +995,13 @@ def apply_body_rules(
                 continue
             parts = _parse_path(path)
             for target_path in _iter_wildcard_targets(
-                result, path, parts, condition, item_condition, require_leaf=True
+                result,
+                path,
+                parts,
+                condition,
+                item_condition,
+                original_body=original_body,
+                require_leaf=True,
             ):
                 found, target = _get_nested_value(result, target_path)
                 if found and isinstance(target, list):
@@ -984,7 +1045,13 @@ def apply_body_rules(
 
             parts = _parse_path(path)
             for target_path in _iter_wildcard_targets(
-                result, path, parts, condition, item_condition, require_leaf=True
+                result,
+                path,
+                parts,
+                condition,
+                item_condition,
+                original_body=original_body,
+                require_leaf=True,
             ):
                 found, current_val = _get_nested_value(result, target_path)
                 if found and isinstance(current_val, str):
@@ -1000,7 +1067,13 @@ def apply_body_rules(
                 continue
             parts = _parse_path(path)
             for target_path in _iter_wildcard_targets(
-                result, path, parts, condition, item_condition, require_leaf=True
+                result,
+                path,
+                parts,
+                condition,
+                item_condition,
+                original_body=original_body,
+                require_leaf=True,
             ):
                 found, current_val = _get_nested_value(result, target_path)
                 if found and isinstance(current_val, str):
@@ -1038,6 +1111,8 @@ class RequestBuilder(ABC):
         extra_headers: dict[str, str] | None = None,
         pre_computed_auth: tuple[str, str] | None = None,
         envelope: ProviderEnvelope | None = None,
+        body: dict[str, Any] | None = None,
+        original_body: dict[str, Any] | None = None,
     ) -> dict[str, str]:
         """构建请求头"""
         pass
@@ -1080,7 +1155,7 @@ class RequestBuilder(ABC):
         # 应用请求体规则（如果 endpoint 配置了 body_rules）
         body_rules = getattr(endpoint, "body_rules", None)
         if body_rules:
-            payload = apply_body_rules(payload, body_rules)
+            payload = apply_body_rules(payload, body_rules, original_body=original_body)
 
         headers = self.build_headers(
             original_headers,
@@ -1089,6 +1164,8 @@ class RequestBuilder(ABC):
             extra_headers=extra_headers,
             pre_computed_auth=pre_computed_auth,
             envelope=envelope,
+            body=payload,
+            original_body=original_body,
         )
         return payload, headers
 
@@ -1191,6 +1268,8 @@ class PassthroughRequestBuilder(RequestBuilder):
         extra_headers: dict[str, str] | None = None,
         pre_computed_auth: tuple[str, str] | None = None,
         envelope: ProviderEnvelope | None = None,
+        body: dict[str, Any] | None = None,
+        original_body: dict[str, Any] | None = None,
     ) -> dict[str, str]:
         """
         透传请求头 - 清理敏感头部（黑名单），透传其他所有头部
@@ -1239,7 +1318,13 @@ class PassthroughRequestBuilder(RequestBuilder):
         # 3. 应用 endpoint 的请求头规则（认证头受保护，无法通过 rules 设置）
         header_rules = getattr(endpoint, "header_rules", None)
         if header_rules:
-            builder.apply_rules(header_rules, protected_keys)
+            builder.apply_rules(
+                header_rules,
+                protected_keys,
+                body=body,
+                original_body=original_body,
+                condition_evaluator=evaluate_condition,
+            )
 
         # 4. 添加额外头部
         effective_extra_headers = self._merge_extra_headers_with_original(

src/api/handlers/gemini/adapter.py

@@ -248,7 +248,7 @@ class GeminiChatAdapter(ChatAdapterBase):
     ) -> dict[str, Any]:
         """测试 Gemini API 模型连接性（非流式）"""
         from src.api.handlers.base.endpoint_checker import run_endpoint_check
-        from src.api.handlers.base.request_builder import apply_body_rules
+        from src.api.handlers.base.request_builder import apply_body_rules, evaluate_condition
         from src.core.api_format.headers import HeaderBuilder
 
         # Gemini需要从request_data或model_name参数获取model名称
@@ -344,7 +344,7 @@ class GeminiChatAdapter(ChatAdapterBase):
 
         # 应用请求体规则（在格式转换后应用，确保规则效果不被覆盖）
         if body_rules:
-            body = apply_body_rules(body, body_rules)
+            body = apply_body_rules(body, body_rules, original_body=body)
 
         # Antigravity 需要将请求体包装为 v1internal 信封格式
         if is_antigravity:
@@ -379,7 +379,13 @@ class GeminiChatAdapter(ChatAdapterBase):
 
             header_builder = HeaderBuilder()
             header_builder.add_many(headers)
-            header_builder.apply_rules(header_rules, protected_keys)
+            header_builder.apply_rules(
+                header_rules,
+                protected_keys,
+                body=body,
+                original_body=body,
+                condition_evaluator=evaluate_condition,
+            )
             headers = header_builder.build()
 
         return await run_endpoint_check(

src/api/handlers/gemini/video_handler.py

@@ -14,7 +14,11 @@ from fastapi.responses import JSONResponse, Response, StreamingResponse
 from sqlalchemy.exc import IntegrityError
 from sqlalchemy.orm import Session
 
-from src.api.handlers.base.request_builder import apply_body_rules, get_provider_auth
+from src.api.handlers.base.request_builder import (
+    apply_body_rules,
+    evaluate_condition,
+    get_provider_auth,
+)
 from src.api.handlers.base.video_handler_base import (
     VideoHandlerBase,
     normalize_gemini_operation_id,
@@ -160,14 +164,22 @@ class GeminiVeoHandler(VideoHandlerBase):
                     converted_body["seconds"] = str(converted_body["seconds"])
 
                 if endpoint_body_rules:
-                    converted_body = apply_body_rules(converted_body, endpoint_body_rules)
+                    converted_body = apply_body_rules(
+                        converted_body,
+                        endpoint_body_rules,
+                        original_body=original_request_body,
+                    )
 
                 # 构建 OpenAI 风格的 URL
                 upstream_url = self._build_openai_upstream_url(endpoint.base_url)
 
                 # 构建 OpenAI 风格的请求头
                 headers = self._build_openai_upstream_headers(
-                    original_headers, upstream_key, endpoint
+                    original_headers,
+                    upstream_key,
+                    endpoint,
+                    body=converted_body,
+                    original_body=original_request_body,
                 )
 
                 client = await HTTPClientPool.get_default_client_async()
@@ -178,11 +190,20 @@ class GeminiVeoHandler(VideoHandlerBase):
                     original_request_body.copy() if endpoint_body_rules else original_request_body
                 )
                 if endpoint_body_rules:
-                    request_body = apply_body_rules(request_body, endpoint_body_rules)
+                    request_body = apply_body_rules(
+                        request_body,
+                        endpoint_body_rules,
+                        original_body=original_request_body,
+                    )
 
                 upstream_url = self._build_upstream_url(endpoint.base_url, internal_request.model)
                 headers = self._build_upstream_headers(
-                    original_headers, upstream_key, endpoint, auth_info
+                    original_headers,
+                    upstream_key,
+                    endpoint,
+                    auth_info,
+                    body=request_body,
+                    original_body=original_request_body,
                 )
                 client = await HTTPClientPool.get_default_client_async()
                 return await client.post(upstream_url, headers=headers, json=request_body)
@@ -294,6 +315,8 @@ class GeminiVeoHandler(VideoHandlerBase):
                 "",  # key 不重要，只是用于记录
                 outcome.candidate.endpoint,
                 None,  # auth_info
+                body=converted_request_body,
+                original_body=original_request_body,
             )
 
             UsageService.finalize_submitted(
@@ -531,6 +554,9 @@ class GeminiVeoHandler(VideoHandlerBase):
         upstream_key: str,
         endpoint: ProviderEndpoint,
         auth_info: Any | None,
+        *,
+        body: dict[str, Any] | None = None,
+        original_body: dict[str, Any] | None = None,
     ) -> dict[str, str]:
         extra_headers = get_extra_headers_from_endpoint(endpoint)
         endpoint_sig = make_signature_key(
@@ -543,6 +569,9 @@ class GeminiVeoHandler(VideoHandlerBase):
             upstream_key,
             endpoint_headers=extra_headers,
             header_rules=getattr(endpoint, "header_rules", None),
+            body=body,
+            original_body=original_body,
+            condition_evaluator=evaluate_condition,
         )
         if auth_info:
             # 覆盖为 OAuth2 Bearer（Vertex AI）
@@ -574,6 +603,9 @@ class GeminiVeoHandler(VideoHandlerBase):
         original_headers: dict[str, str],
         upstream_key: str,
         endpoint: ProviderEndpoint,
+        *,
+        body: dict[str, Any] | None = None,
+        original_body: dict[str, Any] | None = None,
     ) -> dict[str, str]:
         """构建 OpenAI 格式的请求头"""
         extra_headers = get_extra_headers_from_endpoint(endpoint)
@@ -587,6 +619,9 @@ class GeminiVeoHandler(VideoHandlerBase):
             upstream_key,
             endpoint_headers=extra_headers,
             header_rules=getattr(endpoint, "header_rules", None),
+            body=body,
+            original_body=original_body,
+            condition_evaluator=evaluate_condition,
         )
 
     def _create_task_record(

src/api/handlers/openai/video_handler.py

@@ -16,7 +16,11 @@ from fastapi.responses import JSONResponse, Response, StreamingResponse
 from sqlalchemy.exc import IntegrityError
 from sqlalchemy.orm import Session
 
-from src.api.handlers.base.request_builder import apply_body_rules, get_provider_auth
+from src.api.handlers.base.request_builder import (
+    apply_body_rules,
+    evaluate_condition,
+    get_provider_auth,
+)
 from src.api.handlers.base.video_handler_base import VideoHandlerBase, sanitize_error_message
 from src.clients.http_client import HTTPClientPool
 from src.config.settings import config
@@ -154,7 +158,11 @@ class OpenAIVideoHandler(VideoHandlerBase):
                     converted_body["model"] = internal_request.model
 
                 if endpoint_body_rules:
-                    converted_body = apply_body_rules(converted_body, endpoint_body_rules)
+                    converted_body = apply_body_rules(
+                        converted_body,
+                        endpoint_body_rules,
+                        original_body=original_request_body,
+                    )
 
                 # 构建 Gemini 风格的 URL
                 upstream_url = self._build_gemini_upstream_url(
@@ -164,7 +172,12 @@ class OpenAIVideoHandler(VideoHandlerBase):
                 # 构建 Gemini 风格的请求头
                 auth_info = await get_provider_auth(endpoint, _provider_key)
                 headers = self._build_gemini_upstream_headers(
-                    original_headers, upstream_key, endpoint, auth_info
+                    original_headers,
+                    upstream_key,
+                    endpoint,
+                    auth_info,
+                    body=converted_body,
+                    original_body=original_request_body,
                 )
 
                 client = await HTTPClientPool.get_default_client_async()
@@ -172,10 +185,20 @@ class OpenAIVideoHandler(VideoHandlerBase):
             else:
                 # 原始 OpenAI 格式
                 if endpoint_body_rules:
-                    request_body = apply_body_rules(request_body, endpoint_body_rules)
+                    request_body = apply_body_rules(
+                        request_body,
+                        endpoint_body_rules,
+                        original_body=original_request_body,
+                    )
 
                 upstream_url = self._build_upstream_url(endpoint.base_url)
-                headers = self._build_upstream_headers(original_headers, upstream_key, endpoint)
+                headers = self._build_upstream_headers(
+                    original_headers,
+                    upstream_key,
+                    endpoint,
+                    body=request_body,
+                    original_body=original_request_body,
+                )
                 client = await HTTPClientPool.get_default_client_async()
                 return await client.post(upstream_url, headers=headers, json=request_body)
 
@@ -297,6 +320,8 @@ class OpenAIVideoHandler(VideoHandlerBase):
                 original_headers,
                 "",  # key 不重要，只是用于记录
                 outcome.candidate.endpoint,
+                body=converted_request_body,
+                original_body=original_request_body,
             )
 
             UsageService.finalize_submitted(
@@ -502,8 +527,6 @@ class OpenAIVideoHandler(VideoHandlerBase):
         upstream_url = self._build_upstream_url(
             endpoint.base_url, f"{original_task.external_task_id}/remix"
         )
-        headers = self._build_upstream_headers(original_headers, upstream_key, endpoint)
-
         # 确保 seconds 字段为字符串类型（上游 Go 服务要求 string）
         request_body = original_request_body.copy()
         if "seconds" in request_body and request_body["seconds"] is not None:
@@ -512,7 +535,19 @@ class OpenAIVideoHandler(VideoHandlerBase):
         # 应用端点的请求体规则
         endpoint_body_rules = getattr(endpoint, "body_rules", None)
         if endpoint_body_rules:
-            request_body = apply_body_rules(request_body, endpoint_body_rules)
+            request_body = apply_body_rules(
+                request_body,
+                endpoint_body_rules,
+                original_body=original_request_body,
+            )
+
+        headers = self._build_upstream_headers(
+            original_headers,
+            upstream_key,
+            endpoint,
+            body=request_body,
+            original_body=original_request_body,
+        )
 
         client = await HTTPClientPool.get_default_client_async()
         response = await client.post(upstream_url, headers=headers, json=request_body)
@@ -787,7 +822,13 @@ class OpenAIVideoHandler(VideoHandlerBase):
         return url
 
     def _build_upstream_headers(
-        self, original_headers: dict[str, str], upstream_key: str, endpoint: ProviderEndpoint
+        self,
+        original_headers: dict[str, str],
+        upstream_key: str,
+        endpoint: ProviderEndpoint,
+        *,
+        body: dict[str, Any] | None = None,
+        original_body: dict[str, Any] | None = None,
     ) -> dict[str, str]:
         extra_headers = get_extra_headers_from_endpoint(endpoint)
         endpoint_sig = make_signature_key(
@@ -800,6 +841,9 @@ class OpenAIVideoHandler(VideoHandlerBase):
             upstream_key,
             endpoint_headers=extra_headers,
             header_rules=getattr(endpoint, "header_rules", None),
+            body=body,
+            original_body=original_body,
+            condition_evaluator=evaluate_condition,
         )
 
     # ------------------------------------------------------------------
@@ -819,6 +863,9 @@ class OpenAIVideoHandler(VideoHandlerBase):
         upstream_key: str,
         endpoint: ProviderEndpoint,
         auth_info: Any | None,
+        *,
+        body: dict[str, Any] | None = None,
+        original_body: dict[str, Any] | None = None,
     ) -> dict[str, str]:
         """构建 Gemini 格式的请求头"""
         extra_headers = get_extra_headers_from_endpoint(endpoint)
@@ -832,6 +879,9 @@ class OpenAIVideoHandler(VideoHandlerBase):
             upstream_key,
             endpoint_headers=extra_headers,
             header_rules=getattr(endpoint, "header_rules", None),
+            body=body,
+            original_body=original_body,
+            condition_evaluator=evaluate_condition,
         )
         if auth_info:
             # 覆盖为 OAuth2 Bearer（Vertex AI）

src/core/api_format/headers.py

@@ -14,7 +14,7 @@ from __future__ import annotations
 
 import json
 from collections.abc import Set as AbstractSet
-from typing import Any
+from typing import Any, Callable
 
 from src.core.api_format.enums import ApiFamily
 from src.core.api_format.metadata import (
@@ -342,6 +342,12 @@ class HeaderBuilder:
         self,
         rules: list[dict[str, Any]],
         protected_keys: AbstractSet[str] | None = None,
+        *,
+        body: dict[str, Any] | None = None,
+        original_body: dict[str, Any] | None = None,
+        condition_evaluator: (
+            Callable[[dict[str, Any], dict[str, Any], dict[str, Any] | None], bool] | None
+        ) = None,
     ) -> HeaderBuilder:
         """
         应用请求头规则
@@ -354,10 +360,23 @@ class HeaderBuilder:
         Args:
             rules: 规则列表
             protected_keys: 受保护的 key（不能被 set/drop/rename 修改）
+            body: 条件规则评估用的当前请求体
+            original_body: 条件规则评估用的原始请求体
+            condition_evaluator: 条件评估函数；未提供时带 condition 的规则 fail-closed
         """
         protected_lower = {k.lower() for k in protected_keys} if protected_keys else set()
 
         for rule in rules:
+            condition = rule.get("condition")
+            if condition is not None:
+                if (
+                    not isinstance(condition, dict)
+                    or body is None
+                    or condition_evaluator is None
+                    or not condition_evaluator(body, condition, original_body)
+                ):
+                    continue
+
             action = rule.get("action")
 
             if action == "set":
@@ -436,6 +455,11 @@ def build_upstream_headers_for_endpoint(
     extra_headers: dict[str, str] | None = None,
     drop_headers: frozenset[str] | None = None,
     header_rules: list[dict[str, Any]] | None = None,
+    body: dict[str, Any] | None = None,
+    original_body: dict[str, Any] | None = None,
+    condition_evaluator: (
+        Callable[[dict[str, Any], dict[str, Any], dict[str, Any] | None], bool] | None
+    ) = None,
 ) -> dict[str, str]:
     """
     新模式：构建发送给上游 Provider 的请求头（基于 endpoint signature）。
@@ -466,7 +490,13 @@ def build_upstream_headers_for_endpoint(
 
     # 应用用户自定义的请求头规则（认证头受保护）
     if header_rules:
-        builder.apply_rules(header_rules, protected_keys)
+        builder.apply_rules(
+            header_rules,
+            protected_keys,
+            body=body,
+            original_body=original_body,
+            condition_evaluator=condition_evaluator,
+        )
 
     if extra_headers:
         builder.add_many(extra_headers)

src/models/endpoint_models.py

@@ -25,6 +25,8 @@ from src.models.admin_requests import (
 # 实际验证在 headers.py 的 apply_rules 中处理
 HeaderRule = dict[str, Any]
 
+_HEADER_RULE_ACTIONS: frozenset[str] = frozenset({"set", "drop", "rename"})
+
 
 # ========== Body Rule 类型定义 ==========
 # 请求体规则支持六种操作：
@@ -79,6 +81,8 @@ _TYPE_IS_VALUES: frozenset[str] = frozenset(
     {"string", "number", "boolean", "array", "object", "null"}
 )
 
+_CONDITION_SOURCES: frozenset[str] = frozenset({"current", "original"})
+
 
 def parse_re_flags(flags_str: str) -> int:
     """将 flags 字符串（i/m/s）转换为 re 标志位。
@@ -96,21 +100,42 @@ def parse_re_flags(flags_str: str) -> int:
     return result
 
 
-def _validate_condition(condition: Any, rule_idx: int) -> None:
-    """校验单条规则的 condition 结构"""
+def _validate_condition(condition: Any, rule_label: str) -> None:
+    """校验单条规则的 condition 结构。"""
     if not isinstance(condition, dict):
-        raise ValueError(f"body_rules[{rule_idx}]: condition 必须是 JSON 对象")
+        raise ValueError(f"{rule_label}: condition 必须是 JSON 对象")
+
+    has_all = "all" in condition
+    has_any = "any" in condition
+    if has_all or has_any:
+        if has_all and has_any:
+            raise ValueError(f"{rule_label}: condition 不能同时包含 all 和 any")
+
+        key = "all" if has_all else "any"
+        children = condition.get(key)
+        if not isinstance(children, list) or not children:
+            raise ValueError(f"{rule_label}: condition.{key} 必须是非空数组")
+
+        for idx, child in enumerate(children):
+            _validate_condition(child, f"{rule_label}: condition.{key}[{idx}]")
+        return
+
+    source = condition.get("source", "current")
+    if not isinstance(source, str) or source not in _CONDITION_SOURCES:
+        raise ValueError(
+            f"{rule_label}: condition.source 必须是 {sorted(_CONDITION_SOURCES)} 之一，"
+            f"当前值: {source!r}"
+        )
 
     op = condition.get("op")
     if not isinstance(op, str) or op not in _CONDITION_OPS:
         raise ValueError(
-            f"body_rules[{rule_idx}]: condition.op 必须是 {sorted(_CONDITION_OPS)} 之一，"
-            f"当前值: {op!r}"
+            f"{rule_label}: condition.op 必须是 {sorted(_CONDITION_OPS)} 之一，" f"当前值: {op!r}"
         )
 
     path = condition.get("path")
     if not isinstance(path, str) or not path.strip():
-        raise ValueError(f"body_rules[{rule_idx}]: condition 必须提供非空 path")
+        raise ValueError(f"{rule_label}: condition 必须提供非空 path")
 
     # exists / not_exists 不需要 value
     if op in ("exists", "not_exists"):
@@ -121,38 +146,76 @@ def _validate_condition(condition: Any, rule_idx: int) -> None:
     # 数值操作符校验
     if op in ("gt", "lt", "gte", "lte"):
         if not isinstance(value, (int, float)) or isinstance(value, bool):
-            raise ValueError(f"body_rules[{rule_idx}]: condition op={op!r} 的 value 必须为数值")
+            raise ValueError(f"{rule_label}: condition op={op!r} 的 value 必须为数值")
 
     # matches 正则校验
     if op == "matches":
         if not isinstance(value, str) or not value:
-            raise ValueError(
-                f"body_rules[{rule_idx}]: condition op=matches 的 value 必须为非空字符串"
-            )
+            raise ValueError(f"{rule_label}: condition op=matches 的 value 必须为非空字符串")
         try:
             re.compile(value)
         except re.error as e:
-            raise ValueError(
-                f"body_rules[{rule_idx}]: condition op=matches 的 value 不是合法正则: {e}"
-            )
+            raise ValueError(f"{rule_label}: condition op=matches 的 value 不是合法正则: {e}")
 
     # in 校验
     if op == "in":
         if not isinstance(value, list):
-            raise ValueError(f"body_rules[{rule_idx}]: condition op=in 的 value 必须为数组")
+            raise ValueError(f"{rule_label}: condition op=in 的 value 必须为数组")
 
     # type_is 校验
     if op == "type_is":
         if not isinstance(value, str) or value not in _TYPE_IS_VALUES:
             raise ValueError(
-                f"body_rules[{rule_idx}]: condition op=type_is 的 value 必须是 "
+                f"{rule_label}: condition op=type_is 的 value 必须是 "
                 f"{sorted(_TYPE_IS_VALUES)} 之一"
             )
 
     # starts_with / ends_with / contains 对 value 做字符串校验
     if op in ("starts_with", "ends_with"):
         if not isinstance(value, str):
-            raise ValueError(f"body_rules[{rule_idx}]: condition op={op!r} 的 value 必须为字符串")
+            raise ValueError(f"{rule_label}: condition op={op!r} 的 value 必须为字符串")
+
+
+def _validate_header_rules(rules: list[HeaderRule]) -> list[HeaderRule]:
+    """校验 header_rules 列表的结构和 condition 合法性。"""
+    for idx, rule in enumerate(rules):
+        if not isinstance(rule, dict):
+            raise ValueError(f"header_rules[{idx}]: 规则必须是 JSON 对象")
+
+        action = rule.get("action")
+        if not isinstance(action, str) or action.strip().lower() not in _HEADER_RULE_ACTIONS:
+            raise ValueError(
+                f"header_rules[{idx}]: action 必须是 {sorted(_HEADER_RULE_ACTIONS)} 之一，"
+                f"当前值: {action!r}"
+            )
+        action = action.strip().lower()
+
+        if action == "set":
+            key = rule.get("key")
+            value = rule.get("value")
+            if not isinstance(key, str) or not key.strip():
+                raise ValueError(f"header_rules[{idx}]: set 必须提供非空 key")
+            if not isinstance(value, str):
+                raise ValueError(f"header_rules[{idx}]: set 的 value 必须为字符串")
+
+        if action == "drop":
+            key = rule.get("key")
+            if not isinstance(key, str) or not key.strip():
+                raise ValueError(f"header_rules[{idx}]: drop 必须提供非空 key")
+
+        if action == "rename":
+            from_val = rule.get("from")
+            to_val = rule.get("to")
+            if not isinstance(from_val, str) or not from_val.strip():
+                raise ValueError(f"header_rules[{idx}]: rename 必须提供非空 from")
+            if not isinstance(to_val, str) or not to_val.strip():
+                raise ValueError(f"header_rules[{idx}]: rename 必须提供非空 to")
+
+        condition = rule.get("condition")
+        if condition is not None:
+            _validate_condition(condition, f"header_rules[{idx}]")
+
+    return rules
 
 
 def _validate_body_rules(rules: list[BodyRule]) -> list[BodyRule]:
@@ -246,7 +309,7 @@ def _validate_body_rules(rules: list[BodyRule]) -> list[BodyRule]:
         # ---------- condition 校验 ----------
         condition = rule.get("condition")
         if condition is not None:
-            _validate_condition(condition, idx)
+            _validate_condition(condition, f"body_rules[{idx}]")
 
     return rules
 
@@ -322,6 +385,14 @@ class ProviderEndpointCreate(BaseModel):
             return v
         return _validate_body_rules(v)
 
+    @field_validator("header_rules")
+    @classmethod
+    def validate_header_rules(cls, v: list[HeaderRule] | None) -> list[HeaderRule] | None:
+        """校验 header_rules 结构和 condition 合法性"""
+        if v is None:
+            return v
+        return _validate_header_rules(v)
+
 
 class ProviderEndpointUpdate(BaseModel):
     """更新 Endpoint 请求"""
@@ -374,6 +445,14 @@ class ProviderEndpointUpdate(BaseModel):
             return v
         return _validate_body_rules(v)
 
+    @field_validator("header_rules")
+    @classmethod
+    def validate_header_rules(cls, v: list[HeaderRule] | None) -> list[HeaderRule] | None:
+        """校验 header_rules 结构和 condition 合法性"""
+        if v is None:
+            return v
+        return _validate_header_rules(v)
+
 
 class ProviderEndpointResponse(BaseModel):
     """Endpoint 响应"""

tests/unit/test_body_rules.py

@@ -1408,3 +1408,106 @@ class TestItemCondition:
         # flag=False，全局条件不满足，所有元素都不变
         assert "active" not in result["tools"][0]
         assert "active" not in result["tools"][1]
+
+    def test_nested_all_any_condition_with_item_ref(self) -> None:
+        """嵌套 all/any 中包含 $item 时，按元素递归评估。"""
+        body = {
+            "flag": True,
+            "tools": [
+                {"name": "a", "type": "read"},
+                {"name": "b", "type": "write"},
+                {"name": "c", "type": "other"},
+            ],
+        }
+        result = apply_body_rules(
+            body,
+            [
+                {
+                    "action": "set",
+                    "path": "tools[*].enabled",
+                    "value": True,
+                    "condition": {
+                        "all": [
+                            {"path": "flag", "op": "eq", "value": True},
+                            {
+                                "any": [
+                                    {"path": "$item.type", "op": "eq", "value": "read"},
+                                    {"path": "$item.type", "op": "eq", "value": "write"},
+                                ]
+                            },
+                        ]
+                    },
+                }
+            ],
+        )
+        assert result["tools"][0]["enabled"] is True
+        assert result["tools"][1]["enabled"] is True
+        assert "enabled" not in result["tools"][2]
+
+    def test_condition_source_original_uses_original_body_after_current_mutation(self) -> None:
+        """source=original 在前序规则改写 current body 后仍读取原始请求体。"""
+        original_body = {"metadata": {"mode": "prod"}}
+        result = apply_body_rules(
+            original_body,
+            [
+                {"action": "set", "path": "metadata.mode", "value": "test"},
+                {
+                    "action": "set",
+                    "path": "audit.from_original",
+                    "value": True,
+                    "condition": {
+                        "path": "metadata.mode",
+                        "op": "eq",
+                        "value": "prod",
+                        "source": "original",
+                    },
+                },
+                {
+                    "action": "set",
+                    "path": "audit.from_current",
+                    "value": True,
+                    "condition": {
+                        "path": "metadata.mode",
+                        "op": "eq",
+                        "value": "prod",
+                    },
+                },
+            ],
+            original_body=original_body,
+        )
+        assert result["metadata"]["mode"] == "test"
+        assert result["audit"]["from_original"] is True
+        assert "from_current" not in result["audit"]
+
+    def test_condition_all_any_can_mix_original_and_current_sources(self) -> None:
+        """组合条件允许 current/original 混用。"""
+        original_body = {"mode": "prod", "count": 0}
+        result = apply_body_rules(
+            original_body,
+            [
+                {"action": "set", "path": "count", "value": 3},
+                {
+                    "action": "set",
+                    "path": "matched",
+                    "value": True,
+                    "condition": {
+                        "all": [
+                            {"path": "count", "op": "gte", "value": 1},
+                            {
+                                "any": [
+                                    {
+                                        "path": "mode",
+                                        "op": "eq",
+                                        "value": "prod",
+                                        "source": "original",
+                                    },
+                                    {"path": "mode", "op": "eq", "value": "stage"},
+                                ]
+                            },
+                        ]
+                    },
+                },
+            ],
+            original_body=original_body,
+        )
+        assert result["matched"] is True

tests/unit/test_endpoint_models.py

@@ -0,0 +1,94 @@
+import pytest
+from pydantic import ValidationError
+
+from src.models.endpoint_models import ProviderEndpointCreate, ProviderEndpointUpdate
+
+
+def test_provider_endpoint_models_accept_nested_conditions_and_source() -> None:
+    payload = {
+        "provider_id": "provider-1",
+        "api_format": "openai:chat",
+        "base_url": "https://api.example.com",
+        "header_rules": [
+            {
+                "action": "set",
+                "key": "X-Test",
+                "value": "1",
+                "condition": {
+                    "all": [
+                        {"path": "mode", "op": "eq", "value": "prod", "source": "original"},
+                        {
+                            "any": [
+                                {"path": "tier", "op": "eq", "value": "gold"},
+                                {"path": "tier", "op": "eq", "value": "silver"},
+                            ]
+                        },
+                    ]
+                },
+            }
+        ],
+        "body_rules": [
+            {
+                "action": "set",
+                "path": "metadata.enabled",
+                "value": True,
+                "condition": {
+                    "all": [
+                        {"path": "metadata.kind", "op": "eq", "value": "chat"},
+                        {"path": "metadata.tags", "op": "contains", "value": "vip"},
+                    ]
+                },
+            }
+        ],
+    }
+
+    created = ProviderEndpointCreate(**payload)
+    updated = ProviderEndpointUpdate(
+        header_rules=payload["header_rules"],
+        body_rules=payload["body_rules"],
+    )
+
+    assert created.header_rules == payload["header_rules"]
+    assert created.body_rules == payload["body_rules"]
+    assert updated.header_rules == payload["header_rules"]
+    assert updated.body_rules == payload["body_rules"]
+
+
+@pytest.mark.parametrize(
+    ("field_name", "rules"),
+    [
+        (
+            "header_rules",
+            [
+                {
+                    "action": "set",
+                    "key": "X-Test",
+                    "value": "1",
+                    "condition": {"path": "mode", "op": "eq", "value": "prod", "source": "bad"},
+                }
+            ],
+        ),
+        (
+            "body_rules",
+            [
+                {
+                    "action": "set",
+                    "path": "metadata.enabled",
+                    "value": True,
+                    "condition": {"all": []},
+                }
+            ],
+        ),
+    ],
+)
+def test_provider_endpoint_models_reject_invalid_condition_shapes(
+    field_name: str,
+    rules: list[dict],
+) -> None:
+    with pytest.raises(ValidationError):
+        ProviderEndpointCreate(
+            provider_id="provider-1",
+            api_format="openai:chat",
+            base_url="https://api.example.com",
+            **{field_name: rules},
+        )

tests/unit/test_headers.py

@@ -1,5 +1,6 @@
 import json
 
+from src.api.handlers.base.request_builder import evaluate_condition
 from src.core.api_format import (
     CORE_REDACT_HEADERS,
     HeaderBuilder,
@@ -93,6 +94,68 @@ class TestHeaderBuilder:
         parsed = json.loads(normalized)
         assert "d:\\桌面\\123\\Aether" in parsed["workspaces"]
 
+    def test_apply_rules_supports_nested_conditions(self) -> None:
+        builder = HeaderBuilder()
+        builder.apply_rules(
+            [
+                {
+                    "action": "set",
+                    "key": "X-Flag",
+                    "value": "1",
+                    "condition": {
+                        "all": [
+                            {"path": "metadata.mode", "op": "eq", "value": "prod"},
+                            {
+                                "any": [
+                                    {"path": "tier", "op": "eq", "value": "gold"},
+                                    {"path": "tier", "op": "eq", "value": "silver"},
+                                ]
+                            },
+                        ]
+                    },
+                }
+            ],
+            body={"metadata": {"mode": "prod"}, "tier": "silver"},
+            condition_evaluator=evaluate_condition,
+        )
+        assert builder.build()["X-Flag"] == "1"
+
+    def test_apply_rules_supports_original_source(self) -> None:
+        builder = HeaderBuilder()
+        builder.apply_rules(
+            [
+                {
+                    "action": "set",
+                    "key": "X-Original",
+                    "value": "yes",
+                    "condition": {
+                        "path": "metadata.mode",
+                        "op": "eq",
+                        "value": "prod",
+                        "source": "original",
+                    },
+                }
+            ],
+            body={"metadata": {"mode": "test"}},
+            original_body={"metadata": {"mode": "prod"}},
+            condition_evaluator=evaluate_condition,
+        )
+        assert builder.build()["X-Original"] == "yes"
+
+    def test_apply_rules_fail_closed_without_body_or_evaluator(self) -> None:
+        builder = HeaderBuilder()
+        builder.apply_rules(
+            [
+                {
+                    "action": "set",
+                    "key": "X-Skip",
+                    "value": "1",
+                    "condition": {"path": "flag", "op": "eq", "value": True},
+                }
+            ]
+        )
+        assert "X-Skip" not in builder.build()
+
 
 class TestBuildUpstreamHeaders:
     def test_priority_and_drop_headers(self) -> None:
@@ -143,6 +206,24 @@ class TestBuildUpstreamHeaders:
         result = build_upstream_headers_for_endpoint({}, "openai:chat", "provider")
         assert result["Content-Type"] == "application/json"
 
+    def test_header_rules_can_use_condition_against_body(self) -> None:
+        result = build_upstream_headers_for_endpoint(
+            {},
+            "openai:chat",
+            "provider",
+            header_rules=[
+                {
+                    "action": "set",
+                    "key": "X-Conditional",
+                    "value": "1",
+                    "condition": {"path": "mode", "op": "eq", "value": "prod"},
+                }
+            ],
+            body={"mode": "prod"},
+            condition_evaluator=evaluate_condition,
+        )
+        assert result["X-Conditional"] == "1"
+
 
 class TestFilterResponseHeaders:
     def test_drops_hop_by_hop_and_body_dependent_headers(self) -> None: