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annotate s3/s3_uploader.h @ 206:240337164a80

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[Seobeo] SSL should be used for large file as well lol.
author MrJuneJune <me@mrjunejune.com>
date Sun, 15 Feb 2026 11:41:53 -0800
parents 83f16548ba41
children
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196
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1 #ifndef S3_UPLOADER_H
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2 #define S3_UPLOADER_H
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3
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4 /**
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5 * S3 Uploader
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6 * -----------
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7 *
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8 * Generic S3 bucket uploader using AWS Signature Version 4.
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9 * Built on top of seobeo HTTP client.
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10 *
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11 * ## Examples
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12 *
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13 * ### 1. Upload a file from disk
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14 *
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15 * ```c
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16 * S3_Config config = {
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17 * .access_key_id = "AKIAIOSFODNN7EXAMPLE",
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18 * .secret_access_key = "wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY",
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19 * .region = "us-east-1",
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20 * .bucket = "my-bucket"
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21 * };
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22 *
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23 * S3_Result result = S3_Upload_File(&config, "/path/to/local/file.txt", "uploads/file.txt");
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24 * if (result.success)
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25 * {
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26 * printf("Uploaded successfully!\n");
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27 * }
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28 * else
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29 * {
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30 * printf("Error: %s\n", result.error_message);
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31 * }
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32 * S3_Result_Destroy(&result);
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33 * ```
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34 *
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35 * ### 2. Upload raw data from memory
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36 *
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37 * ```c
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38 * const char *data = "Hello, S3!";
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39 * S3_Result result = S3_Upload_Data(&config, (const uint8 *)data, strlen(data),
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40 * "hello.txt", "text/plain");
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41 * S3_Result_Destroy(&result);
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42 * ```
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43 *
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44 * ### 3. Upload with custom content type
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45 *
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46 * ```c
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47 * S3_Result result = S3_Upload_File_With_Content_Type(&config,
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48 * "/path/to/image.png",
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49 * "images/photo.png",
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50 * "image/png");
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51 * S3_Result_Destroy(&result);
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52 * ```
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53 */
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54
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55 #include <stddef.h>
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56
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57 #include "dowa/dowa.h"
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58
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59 // S3 configuration
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60 typedef struct {
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61 const char *access_key_id; // AWS access key ID
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62 const char *secret_access_key; // AWS secret access key
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63 const char *region; // AWS region (e.g., "us-east-1")
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64 const char *bucket; // S3 bucket name
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65 const char *endpoint; // Optional custom endpoint (NULL for default AWS)
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66 boolean use_path_style; // Use path-style URLs (bucket in path, not subdomain)
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67 } S3_Config;
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68
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69 // Upload result
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70 typedef struct {
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71 boolean success; // TRUE if upload succeeded
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72 int32 status_code; // HTTP status code
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73 char *error_message; // Error message (NULL on success)
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74 char *etag; // ETag of uploaded object (on success)
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75 Dowa_Arena *p_arena; // Internal arena (do not modify)
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76 } S3_Result;
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77
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78 // --- Core API --- //
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79
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80 /* Upload file from disk to S3. Content-Type is auto-detected. */
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81 extern S3_Result S3_Upload_File(const S3_Config *p_config,
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82 const char *local_path,
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83 const char *s3_key);
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84
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85 /* Upload file with explicit content type. */
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86 extern S3_Result S3_Upload_File_With_Content_Type(const S3_Config *p_config,
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87 const char *local_path,
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88 const char *s3_key,
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89 const char *content_type);
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90
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91 /* Upload raw data from memory to S3. */
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92 extern S3_Result S3_Upload_Data(const S3_Config *p_config,
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93 const uint8 *data,
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94 size_t data_length,
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95 const char *s3_key,
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96 const char *content_type);
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97
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98 /* Free resources associated with result. */
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99 extern void S3_Result_Destroy(S3_Result *p_result);
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100
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101 // --- Presigned URLs --- //
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102
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103 // Presigned URL result
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104 typedef struct {
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105 boolean success; // TRUE if generation succeeded
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106 char *url; // The presigned URL (on success)
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107 char *error_message; // Error message (on failure)
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108 Dowa_Arena *p_arena; // Internal arena (do not modify)
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109 } S3_Presigned_URL;
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110
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111 /* Generate a presigned URL for uploading (PUT) a file.
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112 *
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113 * The client can use this URL to upload directly to S3 without credentials.
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114 *
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115 * Example:
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116 * S3_Presigned_URL url = S3_Presign_Put(&config, "uploads/file.txt", "image/png", 3600);
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117 * if (url.success) {
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118 * printf("Upload URL: %s\n", url.url);
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119 * // Client does: curl -X PUT -H "Content-Type: image/png" --data-binary @file.png "$URL"
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120 * }
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121 * S3_Presigned_URL_Destroy(&url);
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122 */
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123 extern S3_Presigned_URL S3_Presign_Put(const S3_Config *p_config,
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124 const char *s3_key,
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125 const char *content_type,
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126 int32 expires_seconds);
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127
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128 /* Generate a presigned URL for downloading (GET) a file.
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129 *
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130 * Example:
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131 * S3_Presigned_URL url = S3_Presign_Get(&config, "uploads/file.txt", 3600);
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132 * if (url.success) {
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133 * printf("Download URL: %s\n", url.url);
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134 * // Client does: curl "$URL" -o file.txt
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135 * }
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136 * S3_Presigned_URL_Destroy(&url);
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137 */
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138 extern S3_Presigned_URL S3_Presign_Get(const S3_Config *p_config,
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139 const char *s3_key,
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140 int32 expires_seconds);
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141
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142 /* Free resources associated with presigned URL result. */
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143 extern void S3_Presigned_URL_Destroy(S3_Presigned_URL *p_url);
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144
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145 // --- Utility Functions --- //
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146
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147 /* Guess content type from file extension. Returns "application/octet-stream" if unknown. */
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148 extern const char *S3_Guess_Content_Type(const char *filename);
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149
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150 #endif