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- using System;
- using System.Collections.Generic;
- using System.Linq;
- using System.Reflection;
- using System.Text;
- using VCommon.Json;
- using VCommon.Reflection;
- using VCommon.VApplication.Authorization;
- namespace VCommon.VOpenApi.Docgen
- {
- public static class DocGenerator
- {
- public static string Generate(string name, string version, string basePath, IEnumerable<ApiBind> binds)
- {
- var doc = new SwaggerDocument
- {
- info = new Info
- {
- title = name,
- version = version,
- },
- basePath = basePath,
- schemes = new[] { "http" },
- host = "",
- paths = new Dictionary<string, PathItem>(),
- };
- var modelsToGenerateDefine = new HashSet<Type>();
- //生成paths,并收集入参/返参模型
- foreach (var bind in binds)
- {
- var hasReturnModel = bind.ApiMethod.ReturnType != typeof(void);
- if (hasReturnModel) modelsToGenerateDefine.Add(bind.ApiMethod.ReturnType);
- var docEntry = doc.paths[bind.RawRoute] = new PathItem();
- docEntry.post = new Operation
- {
- tags = new List<string> { bind.ResourceName },
- parameters = new List<Parameter>(),
- responses = new Dictionary<string, Response>
- {
- {
- "200", new Response
- {
- description = "OK",
- schema = hasReturnModel
- ? new Schema {@ref = "#/definitions/" + bind.ApiMethod.ReturnType.GetFriendlyTypeName()}
- : null
- }
- }
- ,
- {
- "400",new Response
- {
- description ="Argument error"
- }
- }
- }
- };
- var authAttrOnType = bind.ApiMethod.DeclaringType.GetCustomAttributeIncludeInterface<VServiceAuthorizeAttribute>();
- if (0 != authAttrOnType.Length || bind.ApiMethod.IsDefined(typeof(VServiceAuthorizeAttribute), true))
- {
- docEntry.post.responses.Add("401", new Response { description = "Authorization required" });
- docEntry.post.responses.Add("403", new Response { description = "Access denied" });
- docEntry.post.parameters.Add(new Parameter
- {
- @in = "header",
- name = "Authorization",
- schema = new Schema { type = "string" }
- });
- string[] clsPermission = null;
- string[] metPermission = null;
- if (0 != authAttrOnType.Length) clsPermission = authAttrOnType.SelectMany(p => p.AnyPermissionsRequired).ToArray();
- if (bind.ApiMethod.IsDefined(typeof(VServiceAuthorizeAttribute), true)) metPermission = bind.ApiMethod.GetCustomAttributes<VServiceAuthorizeAttribute>().SelectMany(p => p.AnyPermissionsRequired).ToArray();
- var sb = new StringBuilder();
- if (0 < clsPermission?.Length || 0 < metPermission?.Length)
- {
- sb.AppendLine("Permission required:");
- if (0 < clsPermission?.Length && 0 < metPermission?.Length)
- {
- sb.AppendLine("A:" + string.Join(",", clsPermission));
- sb.AppendLine("B:" + string.Join(",", metPermission));
- }
- else
- {
- if (0 < clsPermission?.Length) sb.AppendLine(string.Join(",", clsPermission));
- if (0 < metPermission?.Length) sb.AppendLine(string.Join(",", metPermission));
- }
- }
- docEntry.post.description = sb.ToString();
- }
- var inputParamType = bind.InputParamType;
- if (null != inputParamType)
- {
- modelsToGenerateDefine.Add(inputParamType);
- docEntry.post.parameters.Add(new Parameter
- {
- name = "input",
- @in = "body",
- required = true,
- schema = new Schema
- {
- @ref = "#/definitions/" + inputParamType.GetFriendlyTypeName()
- }
- });
- }
- }
- //生成模型定义
- doc.definitions = SchemaCrawler.Crawl(modelsToGenerateDefine);
- return VJsonSerializer.Serialize(doc);
- }
- }
- }
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