Image-Uploader/Program.cs at master · Rofaydaaa/Image-Uploader · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
using Microsoft.Extensions.FileProviders;
using System.Text.Json;

var builder = WebApplication.CreateBuilder(args);
var app = builder.Build();

app.UseStaticFiles();

app.UseStaticFiles(new StaticFileOptions
{
    FileProvider = new PhysicalFileProvider(
        Path.Combine(Directory.GetCurrentDirectory(), "uploads")),
    RequestPath = "/uploads"
});

app.MapGet("/", async () =>
{
    string html = await File.ReadAllTextAsync("./index.html");
    return Results.Content(html, "text/html");
});

app.MapPost("/", async (HttpContext context) =>
{
    var form = await context.Request.ReadFormAsync();
    var title = form["imageTitle"];
    var imgFile = form.Files.GetFile("imageFile");

    if (form.Keys.Count == 0 || string.IsNullOrEmpty(title))
    {
        return Results.BadRequest(new { error = "Empty title string"});
    }

    if (form.Files.Count == 0 || imgFile is null)
    {
        return Results.BadRequest(new { error = "No file uploaded"});
    }

    string imgName = Path.GetFileName(imgFile.FileName);
    string extension = Path.GetExtension(imgName).ToLower();
    if (extension != ".png" && extension != ".jpg" && extension != ".jpeg" && extension != ".gif")
    {
        return Results.BadRequest(new { error = "Invalid uploaded format"});
    }

    string imageID =  Guid.NewGuid().ToString();
    string targetDirectory = Path.Combine(Directory.GetCurrentDirectory(), "uploads");
    string targetFilePath = Path.Combine(targetDirectory, imageID + extension);

    if (!Directory.Exists(targetDirectory))
    {
        Directory.CreateDirectory(targetDirectory);
    }

    using (var stream = new FileStream(targetFilePath, FileMode.Create))
    {
        await imgFile.CopyToAsync(stream);
    }

    string jsonFile = Path.Combine(Directory.GetCurrentDirectory(), "data.json");

    var imageDetails = new ImageDetails
    {
        ID = imageID,
        Title = title.ToString(),
        Path = $"/uploads/{imageID}{extension}"
    };

    var options = new JsonSerializerOptions
    {
        WriteIndented = true
    };

    var imageList = new List<ImageDetails>();;
    bool fileExists = File.Exists(jsonFile);
    if (fileExists)
    {
        string json = await File.ReadAllTextAsync(jsonFile);
        imageList = JsonSerializer.Deserialize<List<ImageDetails>>(json);
    }

    imageList.Add(imageDetails);
    string updatedJson = JsonSerializer.Serialize(imageList, options);

    await File.WriteAllTextAsync(jsonFile, updatedJson);

    return Results.Redirect($"/picture/{imageID}");
});

app.MapGet("/picture/{id}", async (string id) =>
{
    string jsonFile = Path.Combine(Directory.GetCurrentDirectory(), "data.json");
    string json = await File.ReadAllTextAsync(jsonFile);
    List<ImageDetails>? imageList = JsonSerializer.Deserialize<List<ImageDetails>>(json);
    var image = imageList.FirstOrDefault(i => i.ID == id);

    if (image != null)
    {
        var html = $@"
            <html>
            <head>
                <style>
                    body {{
                        font-family: Arial, sans-serif;
                        background-color: #f2f2f2;
                        display: flex;
                        justify-content: center;
                        align-items: center;
                        height: 100vh;
                        margin: 0;
                        padding: 20px;
                    }}

                    .content {{
                        text-align: center;
                    }}

                    h2 {{
                        color: #333;
                        margin-bottom: 20px;
                    }}

                    img {{
                        max-width: 500px;
                        height: auto;
                        margin-bottom: 20px;
                    }}

                    .goback-btn {{
                        padding: 10px 20px;
                        background-color: #333;
                        color: #fff;
                        text-decoration: none;
                        border: none;
                        border-radius: 4px;
                        cursor: pointer;
                    }}

                    .goback-btn:hover {{
                        background-color: #555;
                    }}
                </style>
            </head>
            <body>
                <div class=""content"">
                    <h2>Title: {image.Title}</h2>
                    <img src=""{image.Path}"" alt=""{image.Title}"" />
                    <br/><br/>
                    <button class=""goback-btn"" onclick=""window.location.href='/';"">Go Back</button>
                </div>
            </body>
            </html>
            ";
        return Results.Content(html, "text/html");
    }
    else
    {
        return Results.StatusCode(404);
    }
});

app.Run();