hunt.framework.http.HttpErrorResponseHandler source code

1 module hunt.framework.http.HttpErrorResponseHandler;
2 
3 import hunt.http.HttpHeader;
4 import hunt.http.HttpStatus;
5 import hunt.http.routing.handler.ErrorResponseHandler;
6 import hunt.http.routing.RoutingContext;
7 
8 import std.range;
9 
10 
11 /**
12  * 
13  */
14 class HttpErrorResponseHandler : ErrorResponseHandler {
15 
16     override void render(RoutingContext context, int status, Exception t) {
17 
18         HttpStatusCode code = HttpStatus.getCode(status); 
19         if(code == HttpStatusCode.Null)
20             code = HttpStatusCode.INTERNAL_SERVER_ERROR;
21         
22         context.setStatus(status);
23         context.getResponseHeaders().put(HttpHeader.CONTENT_TYPE, "text/html");
24         context.end(errorPageHtml(status));
25     }
26 
27 }
28 
29 
30 
31 // dfmt off
32 string errorPageHtml(int code , string _body = "")
33 {
34     import std.conv : to;
35 
36     string text = code.to!string;
37     text ~= " ";
38     text ~= HttpStatus.getMessage(code);
39 
40     string html = `<!doctype html>
41 <html lang="en">
42     <meta charset="utf-8">
43     <title>`;
44 
45     html ~= text;
46     html ~= `</title>
47     <meta name="viewport" content="width=device-width, initial-scale=1">
48     <style>
49 
50         * {
51             line-height: 3;
52             margin: 0;
53         }
54 
55         html {
56             color: #888;
57             display: table;
58             font-family: sans-serif;
59             height: 100%;
60             text-align: center;
61             width: 100%;
62         }
63 
64         body {
65             display: table-cell;
66             vertical-align: middle;
67             margin: 2em auto;
68         }
69 
70         h1 {
71             color: #555;
72             font-size: 2em;
73             font-weight: 400;
74         }
75 
76         p {
77             margin: 0 auto;
78             width: 90%;
79         }
80 
81     </style>
82 </head>
83 <body>
84     <h1>`;
85     html ~= text;
86     html ~= `</h1>
87     <p>Sorry!! Unable to complete your request :(</p>
88     `;
89     if(_body.length > 0)
90         html ~= "<p>" ~ _body ~ "</p>";
91 html ~= `
92 </body>
93 </html>
94 `;
95 
96     return html;
97 }
98 
99 string errorPageWithStack(int code , string _body = "")
100 {
101     import std.conv : to;
102 
103     string text = code.to!string;
104     text ~= " ";
105     text ~= HttpStatus.getMessage(code);
106 
107     string html = `<!doctype html>
108 <html lang="en">
109     <meta charset="utf-8">
110     <title>`;
111 
112     html ~= text;
113     html ~= `</title>
114     <meta name="viewport" content="width=device-width, initial-scale=1">
115    
116 </head>
117 <body>
118     <h1>`;
119     html ~= text;
120     html ~= `</h1>
121     <p>Sorry!! Unable to complete your request :(</p>
122     `;
123     
124 
125     if(!_body.empty) {
126         html ~= _body;
127     }
128 
129     html ~= `
130 </body>
131 </html>
132 `;
133 
134     return html;
135 }
136 // dfmt on