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Add option to define ID and modification token generation characters (#17)
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Lukas Schulte Pelkum
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commit
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24
README.md
24
README.md
@ -72,17 +72,19 @@ Pasty will be available at http://localhost:8080.
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---
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## General environment variables
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| Environment Variable | Default Value | Type | Description |
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|-----------------------------------|---------------|----------|----------------------------------------------------------------------------------------------------------------------------|
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| `PASTY_WEB_ADDRESS` | `:8080` | `string` | Defines the address the web server listens to |
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| `PASTY_STORAGE_TYPE` | `file` | `string` | Defines the storage type the pastes are saved to |
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| `PASTY_HASTEBIN_SUPPORT` | `false` | `bool` | Defines whether or not the `POST /documents` endpoint should be enabled, as known from the hastebin servers |
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| `PASTY_ID_LENGTH` | `6` | `number` | Defines the length of the ID of a paste |
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| `PASTY_MODIFICATION_TOKENS` | `true` | `bool` | Defines whether or not modification tokens should be generated |
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| `PASTY_MODIFICATION_TOKEN_MASTER` | `<empty>` | `string` | Defines the master modification token which is authorized to modify every paste (even if modification tokens are disabled) |
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| `PASTY_MODIFICATION_TOKEN_LENGTH` | `12` | `number` | Defines the length of the modification token of a paste |
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| `PASTY_RATE_LIMIT` | `30-M` | `string` | Defines the rate limit of the API (see https://github.com/ulule/limiter#usage) |
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| `PASTY_LENGTH_CAP` | `50000` | `number` | Defines the maximum amount of characters a paste is allowed to contain (a value `<= 0` means no limit) |
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| Environment Variable | Default Value | Type | Description |
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|---------------------------------------|------------------------------------------------------------------|----------|----------------------------------------------------------------------------------------------------------------------------|
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| `PASTY_WEB_ADDRESS` | `:8080` | `string` | Defines the address the web server listens to |
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| `PASTY_STORAGE_TYPE` | `file` | `string` | Defines the storage type the pastes are saved to |
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| `PASTY_HASTEBIN_SUPPORT` | `false` | `bool` | Defines whether or not the `POST /documents` endpoint should be enabled, as known from the hastebin servers |
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| `PASTY_ID_LENGTH` | `6` | `number` | Defines the length of the ID of a paste |
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| `PASTY_ID_CHARACTERS` | `abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789` | `string` | Defines the characters to use when generating paste IDs |
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| `PASTY_MODIFICATION_TOKENS` | `true` | `bool` | Defines whether or not modification tokens should be generated |
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| `PASTY_MODIFICATION_TOKEN_MASTER` | `<empty>` | `string` | Defines the master modification token which is authorized to modify every paste (even if modification tokens are disabled) |
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| `PASTY_MODIFICATION_TOKEN_LENGTH` | `12` | `number` | Defines the length of the modification token of a paste |
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| `PASTY_MODIFICATION_TOKEN_CHARACTERS` | `abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789` | `string` | Defines the characters to use when generating modification tokens |
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| `PASTY_RATE_LIMIT` | `30-M` | `string` | Defines the rate limit of the API (see https://github.com/ulule/limiter#usage) |
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| `PASTY_LENGTH_CAP` | `50000` | `number` | Defines the maximum amount of characters a paste is allowed to contain (a value `<= 0` means no limit) |
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## AutoDelete
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Pasty provides an intuitive system to automatically delete pastes after a specific amount of time. You can configure it with the following variables:
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@ -10,21 +10,23 @@ import (
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// Config represents the general application configuration structure
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type Config struct {
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WebAddress string
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StorageType shared.StorageType
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HastebinSupport bool
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IDLength int
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ModificationTokens bool
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ModificationTokenMaster string
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ModificationTokenLength int
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RateLimit string
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LengthCap int
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AutoDelete *AutoDeleteConfig
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Reports *ReportConfig
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File *FileConfig
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Postgres *PostgresConfig
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MongoDB *MongoDBConfig
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S3 *S3Config
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WebAddress string
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StorageType shared.StorageType
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HastebinSupport bool
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IDLength int
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IDCharacters string
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ModificationTokens bool
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ModificationTokenMaster string
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ModificationTokenLength int
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ModificationTokenCharacters string
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RateLimit string
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LengthCap int
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AutoDelete *AutoDeleteConfig
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Reports *ReportConfig
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File *FileConfig
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Postgres *PostgresConfig
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MongoDB *MongoDBConfig
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S3 *S3Config
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}
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// AutoDeleteConfig represents the configuration specific for the AutoDelete behaviour
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@ -77,15 +79,17 @@ func Load() {
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env.Load()
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Current = &Config{
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WebAddress: env.MustString("WEB_ADDRESS", ":8080"),
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StorageType: shared.StorageType(strings.ToLower(env.MustString("STORAGE_TYPE", "file"))),
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HastebinSupport: env.MustBool("HASTEBIN_SUPPORT", false),
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IDLength: env.MustInt("ID_LENGTH", 6),
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ModificationTokens: env.MustBool("MODIFICATION_TOKENS", env.MustBool("DELETION_TOKENS", true)), // ---
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ModificationTokenMaster: env.MustString("MODIFICATION_TOKEN_MASTER", env.MustString("DELETION_TOKEN_MASTER", "")), // - We don't want to destroy peoples old configuration
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ModificationTokenLength: env.MustInt("MODIFICATION_TOKEN_LENGTH", env.MustInt("DELETION_TOKEN_LENGTH", 12)), // ---
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RateLimit: env.MustString("RATE_LIMIT", "30-M"),
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LengthCap: env.MustInt("LENGTH_CAP", 50_000),
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WebAddress: env.MustString("WEB_ADDRESS", ":8080"),
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StorageType: shared.StorageType(strings.ToLower(env.MustString("STORAGE_TYPE", "file"))),
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HastebinSupport: env.MustBool("HASTEBIN_SUPPORT", false),
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IDLength: env.MustInt("ID_LENGTH", 6),
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IDCharacters: env.MustString("ID_CHARACTERS", "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"),
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ModificationTokens: env.MustBool("MODIFICATION_TOKENS", env.MustBool("DELETION_TOKENS", true)), // ---
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ModificationTokenMaster: env.MustString("MODIFICATION_TOKEN_MASTER", env.MustString("DELETION_TOKEN_MASTER", "")), // - We don't want to destroy peoples old configuration
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ModificationTokenLength: env.MustInt("MODIFICATION_TOKEN_LENGTH", env.MustInt("DELETION_TOKEN_LENGTH", 12)), // ---
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ModificationTokenCharacters: env.MustString("MODIFICATION_TOKEN_CHARACTERS", "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"),
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RateLimit: env.MustString("RATE_LIMIT", "30-M"),
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LengthCap: env.MustInt("LENGTH_CAP", 50_000),
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AutoDelete: &AutoDeleteConfig{
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Enabled: env.MustBool("AUTODELETE", false),
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Lifetime: env.MustDuration("AUTODELETE_LIFETIME", 720*time.Hour),
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@ -8,7 +8,7 @@ import (
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// AcquireID generates a new unique ID
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func AcquireID() (string, error) {
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for {
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id := utils.RandomString(config.Current.IDLength)
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id := utils.RandomString(config.Current.IDCharacters, config.Current.IDLength)
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paste, err := Current.Get(id)
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if err != nil {
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return "", err
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@ -5,15 +5,12 @@ import (
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"time"
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)
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// stringContents holds the chars a random string can contain
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const stringContents = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
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// RandomString returns a random string with the given length
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func RandomString(length int) string {
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func RandomString(characters string, length int) string {
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rand.Seed(time.Now().UnixNano())
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bytes := make([]byte, length)
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for i := range bytes {
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bytes[i] = stringContents[rand.Int63()%int64(len(stringContents))]
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bytes[i] = characters[rand.Int63()%int64(len(characters))]
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}
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return string(bytes)
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}
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@ -52,7 +52,7 @@ func HastebinSupportHandler(ctx *fasthttp.RequestCtx) {
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// Set a modification token
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if config.Current.ModificationTokens {
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paste.ModificationToken = utils.RandomString(config.Current.ModificationTokenLength)
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paste.ModificationToken = utils.RandomString(config.Current.ModificationTokenCharacters, config.Current.ModificationTokenLength)
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err = paste.HashModificationToken()
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if err != nil {
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@ -95,7 +95,7 @@ func v1PostPaste(ctx *fasthttp.RequestCtx) {
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// Set a modification token
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modificationToken := ""
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if config.Current.ModificationTokens {
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modificationToken = utils.RandomString(config.Current.ModificationTokenLength)
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modificationToken = utils.RandomString(config.Current.ModificationTokenCharacters, config.Current.ModificationTokenLength)
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paste.ModificationToken = modificationToken
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err = paste.HashModificationToken()
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@ -146,7 +146,7 @@ func endpointCreatePaste(ctx *fasthttp.RequestCtx) {
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// Create a new modification token if enabled
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modificationToken := ""
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if config.Current.ModificationTokens {
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modificationToken = utils.RandomString(config.Current.ModificationTokenLength)
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modificationToken = utils.RandomString(config.Current.ModificationTokenCharacters, config.Current.ModificationTokenLength)
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paste.ModificationToken = modificationToken
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err = paste.HashModificationToken()
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