257 lines
17 KiB
Go
257 lines
17 KiB
Go
//go:build !noserver
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package cmd
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import (
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"errors"
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"fmt"
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"log"
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"math"
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"net"
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"strings"
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"time"
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"github.com/urfave/cli/v2"
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"github.com/urfave/cli/v2/altsrc"
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"heckel.io/ntfy/server"
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"heckel.io/ntfy/util"
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)
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func init() {
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commands = append(commands, cmdServe)
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}
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var flagsServe = []cli.Flag{
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&cli.StringFlag{Name: "config", Aliases: []string{"c"}, EnvVars: []string{"NTFY_CONFIG_FILE"}, Value: "/etc/ntfy/server.yml", DefaultText: "/etc/ntfy/server.yml", Usage: "config file"},
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altsrc.NewStringFlag(&cli.StringFlag{Name: "base-url", Aliases: []string{"base_url", "B"}, EnvVars: []string{"NTFY_BASE_URL"}, Usage: "externally visible base URL for this host (e.g. https://ntfy.sh)"}),
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altsrc.NewStringFlag(&cli.StringFlag{Name: "listen-http", Aliases: []string{"listen_http", "l"}, EnvVars: []string{"NTFY_LISTEN_HTTP"}, Value: server.DefaultListenHTTP, Usage: "ip:port used to as HTTP listen address"}),
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altsrc.NewStringFlag(&cli.StringFlag{Name: "listen-https", Aliases: []string{"listen_https", "L"}, EnvVars: []string{"NTFY_LISTEN_HTTPS"}, Usage: "ip:port used to as HTTPS listen address"}),
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altsrc.NewStringFlag(&cli.StringFlag{Name: "listen-unix", Aliases: []string{"listen_unix", "U"}, EnvVars: []string{"NTFY_LISTEN_UNIX"}, Usage: "listen on unix socket path"}),
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altsrc.NewStringFlag(&cli.StringFlag{Name: "key-file", Aliases: []string{"key_file", "K"}, EnvVars: []string{"NTFY_KEY_FILE"}, Usage: "private key file, if listen-https is set"}),
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altsrc.NewStringFlag(&cli.StringFlag{Name: "cert-file", Aliases: []string{"cert_file", "E"}, EnvVars: []string{"NTFY_CERT_FILE"}, Usage: "certificate file, if listen-https is set"}),
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altsrc.NewStringFlag(&cli.StringFlag{Name: "firebase-key-file", Aliases: []string{"firebase_key_file", "F"}, EnvVars: []string{"NTFY_FIREBASE_KEY_FILE"}, Usage: "Firebase credentials file; if set additionally publish to FCM topic"}),
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altsrc.NewStringFlag(&cli.StringFlag{Name: "cache-file", Aliases: []string{"cache_file", "C"}, EnvVars: []string{"NTFY_CACHE_FILE"}, Usage: "cache file used for message caching"}),
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altsrc.NewDurationFlag(&cli.DurationFlag{Name: "cache-duration", Aliases: []string{"cache_duration", "b"}, EnvVars: []string{"NTFY_CACHE_DURATION"}, Value: server.DefaultCacheDuration, Usage: "buffer messages for this time to allow `since` requests"}),
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altsrc.NewStringFlag(&cli.StringFlag{Name: "auth-file", Aliases: []string{"auth_file", "H"}, EnvVars: []string{"NTFY_AUTH_FILE"}, Usage: "auth database file used for access control"}),
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altsrc.NewStringFlag(&cli.StringFlag{Name: "auth-default-access", Aliases: []string{"auth_default_access", "p"}, EnvVars: []string{"NTFY_AUTH_DEFAULT_ACCESS"}, Value: "read-write", Usage: "default permissions if no matching entries in the auth database are found"}),
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altsrc.NewStringFlag(&cli.StringFlag{Name: "attachment-cache-dir", Aliases: []string{"attachment_cache_dir"}, EnvVars: []string{"NTFY_ATTACHMENT_CACHE_DIR"}, Usage: "cache directory for attached files"}),
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altsrc.NewStringFlag(&cli.StringFlag{Name: "attachment-total-size-limit", Aliases: []string{"attachment_total_size_limit", "A"}, EnvVars: []string{"NTFY_ATTACHMENT_TOTAL_SIZE_LIMIT"}, DefaultText: "5G", Usage: "limit of the on-disk attachment cache"}),
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altsrc.NewStringFlag(&cli.StringFlag{Name: "attachment-file-size-limit", Aliases: []string{"attachment_file_size_limit", "Y"}, EnvVars: []string{"NTFY_ATTACHMENT_FILE_SIZE_LIMIT"}, DefaultText: "15M", Usage: "per-file attachment size limit (e.g. 300k, 2M, 100M)"}),
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altsrc.NewDurationFlag(&cli.DurationFlag{Name: "attachment-expiry-duration", Aliases: []string{"attachment_expiry_duration", "X"}, EnvVars: []string{"NTFY_ATTACHMENT_EXPIRY_DURATION"}, Value: server.DefaultAttachmentExpiryDuration, DefaultText: "3h", Usage: "duration after which uploaded attachments will be deleted (e.g. 3h, 20h)"}),
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altsrc.NewDurationFlag(&cli.DurationFlag{Name: "keepalive-interval", Aliases: []string{"keepalive_interval", "k"}, EnvVars: []string{"NTFY_KEEPALIVE_INTERVAL"}, Value: server.DefaultKeepaliveInterval, Usage: "interval of keepalive messages"}),
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altsrc.NewDurationFlag(&cli.DurationFlag{Name: "manager-interval", Aliases: []string{"manager_interval", "m"}, EnvVars: []string{"NTFY_MANAGER_INTERVAL"}, Value: server.DefaultManagerInterval, Usage: "interval of for message pruning and stats printing"}),
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altsrc.NewStringFlag(&cli.StringFlag{Name: "web-root", Aliases: []string{"web_root"}, EnvVars: []string{"NTFY_WEB_ROOT"}, Value: "app", Usage: "sets web root to landing page (home), web app (app) or disabled (disable)"}),
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altsrc.NewStringFlag(&cli.StringFlag{Name: "smtp-sender-addr", Aliases: []string{"smtp_sender_addr"}, EnvVars: []string{"NTFY_SMTP_SENDER_ADDR"}, Usage: "SMTP server address (host:port) for outgoing emails"}),
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altsrc.NewStringFlag(&cli.StringFlag{Name: "smtp-sender-user", Aliases: []string{"smtp_sender_user"}, EnvVars: []string{"NTFY_SMTP_SENDER_USER"}, Usage: "SMTP user (if e-mail sending is enabled)"}),
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altsrc.NewStringFlag(&cli.StringFlag{Name: "smtp-sender-pass", Aliases: []string{"smtp_sender_pass"}, EnvVars: []string{"NTFY_SMTP_SENDER_PASS"}, Usage: "SMTP password (if e-mail sending is enabled)"}),
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altsrc.NewStringFlag(&cli.StringFlag{Name: "smtp-sender-from", Aliases: []string{"smtp_sender_from"}, EnvVars: []string{"NTFY_SMTP_SENDER_FROM"}, Usage: "SMTP sender address (if e-mail sending is enabled)"}),
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altsrc.NewStringFlag(&cli.StringFlag{Name: "smtp-server-listen", Aliases: []string{"smtp_server_listen"}, EnvVars: []string{"NTFY_SMTP_SERVER_LISTEN"}, Usage: "SMTP server address (ip:port) for incoming emails, e.g. :25"}),
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altsrc.NewStringFlag(&cli.StringFlag{Name: "smtp-server-domain", Aliases: []string{"smtp_server_domain"}, EnvVars: []string{"NTFY_SMTP_SERVER_DOMAIN"}, Usage: "SMTP domain for incoming e-mail, e.g. ntfy.sh"}),
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altsrc.NewStringFlag(&cli.StringFlag{Name: "smtp-server-addr-prefix", Aliases: []string{"smtp_server_addr_prefix"}, EnvVars: []string{"NTFY_SMTP_SERVER_ADDR_PREFIX"}, Usage: "SMTP email address prefix for topics to prevent spam (e.g. 'ntfy-')"}),
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altsrc.NewIntFlag(&cli.IntFlag{Name: "global-topic-limit", Aliases: []string{"global_topic_limit", "T"}, EnvVars: []string{"NTFY_GLOBAL_TOPIC_LIMIT"}, Value: server.DefaultTotalTopicLimit, Usage: "total number of topics allowed"}),
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altsrc.NewIntFlag(&cli.IntFlag{Name: "visitor-subscription-limit", Aliases: []string{"visitor_subscription_limit"}, EnvVars: []string{"NTFY_VISITOR_SUBSCRIPTION_LIMIT"}, Value: server.DefaultVisitorSubscriptionLimit, Usage: "number of subscriptions per visitor"}),
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altsrc.NewStringFlag(&cli.StringFlag{Name: "visitor-attachment-total-size-limit", Aliases: []string{"visitor_attachment_total_size_limit"}, EnvVars: []string{"NTFY_VISITOR_ATTACHMENT_TOTAL_SIZE_LIMIT"}, Value: "100M", Usage: "total storage limit used for attachments per visitor"}),
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altsrc.NewStringFlag(&cli.StringFlag{Name: "visitor-attachment-daily-bandwidth-limit", Aliases: []string{"visitor_attachment_daily_bandwidth_limit"}, EnvVars: []string{"NTFY_VISITOR_ATTACHMENT_DAILY_BANDWIDTH_LIMIT"}, Value: "500M", Usage: "total daily attachment download/upload bandwidth limit per visitor"}),
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altsrc.NewIntFlag(&cli.IntFlag{Name: "visitor-request-limit-burst", Aliases: []string{"visitor_request_limit_burst"}, EnvVars: []string{"NTFY_VISITOR_REQUEST_LIMIT_BURST"}, Value: server.DefaultVisitorRequestLimitBurst, Usage: "initial limit of requests per visitor"}),
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altsrc.NewDurationFlag(&cli.DurationFlag{Name: "visitor-request-limit-replenish", Aliases: []string{"visitor_request_limit_replenish"}, EnvVars: []string{"NTFY_VISITOR_REQUEST_LIMIT_REPLENISH"}, Value: server.DefaultVisitorRequestLimitReplenish, Usage: "interval at which burst limit is replenished (one per x)"}),
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altsrc.NewStringFlag(&cli.StringFlag{Name: "visitor-request-limit-exempt-hosts", Aliases: []string{"visitor_request_limit_exempt_hosts"}, EnvVars: []string{"NTFY_VISITOR_REQUEST_LIMIT_EXEMPT_HOSTS"}, Value: "", Usage: "hostnames and/or IP addresses of hosts that will be exempt from the visitor request limit"}),
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altsrc.NewIntFlag(&cli.IntFlag{Name: "visitor-email-limit-burst", Aliases: []string{"visitor_email_limit_burst"}, EnvVars: []string{"NTFY_VISITOR_EMAIL_LIMIT_BURST"}, Value: server.DefaultVisitorEmailLimitBurst, Usage: "initial limit of e-mails per visitor"}),
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altsrc.NewDurationFlag(&cli.DurationFlag{Name: "visitor-email-limit-replenish", Aliases: []string{"visitor_email_limit_replenish"}, EnvVars: []string{"NTFY_VISITOR_EMAIL_LIMIT_REPLENISH"}, Value: server.DefaultVisitorEmailLimitReplenish, Usage: "interval at which burst limit is replenished (one per x)"}),
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altsrc.NewBoolFlag(&cli.BoolFlag{Name: "behind-proxy", Aliases: []string{"behind_proxy", "P"}, EnvVars: []string{"NTFY_BEHIND_PROXY"}, Value: false, Usage: "if set, use X-Forwarded-For header to determine visitor IP address (for rate limiting)"}),
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}
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var cmdServe = &cli.Command{
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Name: "serve",
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Usage: "Run the ntfy server",
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UsageText: "ntfy serve [OPTIONS..]",
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Action: execServe,
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Category: categoryServer,
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Flags: flagsServe,
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Before: initConfigFileInputSourceFunc("config", flagsServe),
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Description: `Run the ntfy server and listen for incoming requests
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The command will load the configuration from /etc/ntfy/server.yml. Config options can
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be overridden using the command line options.
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Examples:
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ntfy serve # Starts server in the foreground (on port 80)
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ntfy serve --listen-http :8080 # Starts server with alternate port`,
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}
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func execServe(c *cli.Context) error {
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if c.NArg() > 0 {
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return errors.New("no arguments expected, see 'ntfy serve --help' for help")
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}
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// Read all the options
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baseURL := c.String("base-url")
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listenHTTP := c.String("listen-http")
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listenHTTPS := c.String("listen-https")
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listenUnix := c.String("listen-unix")
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keyFile := c.String("key-file")
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certFile := c.String("cert-file")
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firebaseKeyFile := c.String("firebase-key-file")
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cacheFile := c.String("cache-file")
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cacheDuration := c.Duration("cache-duration")
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authFile := c.String("auth-file")
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authDefaultAccess := c.String("auth-default-access")
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attachmentCacheDir := c.String("attachment-cache-dir")
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attachmentTotalSizeLimitStr := c.String("attachment-total-size-limit")
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attachmentFileSizeLimitStr := c.String("attachment-file-size-limit")
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attachmentExpiryDuration := c.Duration("attachment-expiry-duration")
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keepaliveInterval := c.Duration("keepalive-interval")
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managerInterval := c.Duration("manager-interval")
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webRoot := c.String("web-root")
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smtpSenderAddr := c.String("smtp-sender-addr")
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smtpSenderUser := c.String("smtp-sender-user")
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smtpSenderPass := c.String("smtp-sender-pass")
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smtpSenderFrom := c.String("smtp-sender-from")
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smtpServerListen := c.String("smtp-server-listen")
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smtpServerDomain := c.String("smtp-server-domain")
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smtpServerAddrPrefix := c.String("smtp-server-addr-prefix")
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totalTopicLimit := c.Int("global-topic-limit")
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visitorSubscriptionLimit := c.Int("visitor-subscription-limit")
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visitorAttachmentTotalSizeLimitStr := c.String("visitor-attachment-total-size-limit")
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visitorAttachmentDailyBandwidthLimitStr := c.String("visitor-attachment-daily-bandwidth-limit")
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visitorRequestLimitBurst := c.Int("visitor-request-limit-burst")
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visitorRequestLimitReplenish := c.Duration("visitor-request-limit-replenish")
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visitorRequestLimitExemptHosts := util.SplitNoEmpty(c.String("visitor-request-limit-exempt-hosts"), ",")
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visitorEmailLimitBurst := c.Int("visitor-email-limit-burst")
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visitorEmailLimitReplenish := c.Duration("visitor-email-limit-replenish")
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behindProxy := c.Bool("behind-proxy")
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// Check values
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if firebaseKeyFile != "" && !util.FileExists(firebaseKeyFile) {
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return errors.New("if set, FCM key file must exist")
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} else if keepaliveInterval < 5*time.Second {
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return errors.New("keepalive interval cannot be lower than five seconds")
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} else if managerInterval < 5*time.Second {
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return errors.New("manager interval cannot be lower than five seconds")
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} else if cacheDuration > 0 && cacheDuration < managerInterval {
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return errors.New("cache duration cannot be lower than manager interval")
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} else if keyFile != "" && !util.FileExists(keyFile) {
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return errors.New("if set, key file must exist")
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} else if certFile != "" && !util.FileExists(certFile) {
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return errors.New("if set, certificate file must exist")
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} else if listenHTTPS != "" && (keyFile == "" || certFile == "") {
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return errors.New("if listen-https is set, both key-file and cert-file must be set")
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} else if smtpSenderAddr != "" && (baseURL == "" || smtpSenderUser == "" || smtpSenderPass == "" || smtpSenderFrom == "") {
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return errors.New("if smtp-sender-addr is set, base-url, smtp-sender-user, smtp-sender-pass and smtp-sender-from must also be set")
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} else if smtpServerListen != "" && smtpServerDomain == "" {
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return errors.New("if smtp-server-listen is set, smtp-server-domain must also be set")
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} else if attachmentCacheDir != "" && baseURL == "" {
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return errors.New("if attachment-cache-dir is set, base-url must also be set")
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} else if baseURL != "" && !strings.HasPrefix(baseURL, "http://") && !strings.HasPrefix(baseURL, "https://") {
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return errors.New("if set, base-url must start with http:// or https://")
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} else if !util.InStringList([]string{"read-write", "read-only", "write-only", "deny-all"}, authDefaultAccess) {
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return errors.New("if set, auth-default-access must start set to 'read-write', 'read-only', 'write-only' or 'deny-all'")
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} else if !util.InStringList([]string{"app", "home", "disable"}, webRoot) {
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return errors.New("if set, web-root must be 'home' or 'app'")
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}
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webRootIsApp := webRoot == "app"
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enableWeb := webRoot != "disable"
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// Default auth permissions
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authDefaultRead := authDefaultAccess == "read-write" || authDefaultAccess == "read-only"
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authDefaultWrite := authDefaultAccess == "read-write" || authDefaultAccess == "write-only"
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// Special case: Unset default
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if listenHTTP == "-" {
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listenHTTP = ""
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}
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// Convert sizes to bytes
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attachmentTotalSizeLimit, err := parseSize(attachmentTotalSizeLimitStr, server.DefaultAttachmentTotalSizeLimit)
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if err != nil {
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return err
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}
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attachmentFileSizeLimit, err := parseSize(attachmentFileSizeLimitStr, server.DefaultAttachmentFileSizeLimit)
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if err != nil {
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return err
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}
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visitorAttachmentTotalSizeLimit, err := parseSize(visitorAttachmentTotalSizeLimitStr, server.DefaultVisitorAttachmentTotalSizeLimit)
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if err != nil {
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return err
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}
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visitorAttachmentDailyBandwidthLimit, err := parseSize(visitorAttachmentDailyBandwidthLimitStr, server.DefaultVisitorAttachmentDailyBandwidthLimit)
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if err != nil {
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return err
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} else if visitorAttachmentDailyBandwidthLimit > math.MaxInt {
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return fmt.Errorf("config option visitor-attachment-daily-bandwidth-limit must be lower than %d", math.MaxInt)
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}
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// Resolve hosts
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visitorRequestLimitExemptIPs := make([]string, 0)
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for _, host := range visitorRequestLimitExemptHosts {
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ips, err := net.LookupIP(host)
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if err != nil {
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log.Printf("cannot resolve host %s: %s, ignoring visitor request exemption", host, err.Error())
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continue
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}
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for _, ip := range ips {
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visitorRequestLimitExemptIPs = append(visitorRequestLimitExemptIPs, ip.String())
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}
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}
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// Run server
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conf := server.NewConfig()
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conf.BaseURL = baseURL
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conf.ListenHTTP = listenHTTP
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conf.ListenHTTPS = listenHTTPS
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conf.ListenUnix = listenUnix
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conf.KeyFile = keyFile
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conf.CertFile = certFile
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conf.FirebaseKeyFile = firebaseKeyFile
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conf.CacheFile = cacheFile
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conf.CacheDuration = cacheDuration
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conf.AuthFile = authFile
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conf.AuthDefaultRead = authDefaultRead
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conf.AuthDefaultWrite = authDefaultWrite
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conf.AttachmentCacheDir = attachmentCacheDir
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conf.AttachmentTotalSizeLimit = attachmentTotalSizeLimit
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conf.AttachmentFileSizeLimit = attachmentFileSizeLimit
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conf.AttachmentExpiryDuration = attachmentExpiryDuration
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conf.KeepaliveInterval = keepaliveInterval
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conf.ManagerInterval = managerInterval
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conf.WebRootIsApp = webRootIsApp
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conf.SMTPSenderAddr = smtpSenderAddr
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conf.SMTPSenderUser = smtpSenderUser
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conf.SMTPSenderPass = smtpSenderPass
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conf.SMTPSenderFrom = smtpSenderFrom
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conf.SMTPServerListen = smtpServerListen
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conf.SMTPServerDomain = smtpServerDomain
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conf.SMTPServerAddrPrefix = smtpServerAddrPrefix
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conf.TotalTopicLimit = totalTopicLimit
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conf.VisitorSubscriptionLimit = visitorSubscriptionLimit
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conf.VisitorAttachmentTotalSizeLimit = visitorAttachmentTotalSizeLimit
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conf.VisitorAttachmentDailyBandwidthLimit = int(visitorAttachmentDailyBandwidthLimit)
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conf.VisitorRequestLimitBurst = visitorRequestLimitBurst
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conf.VisitorRequestLimitReplenish = visitorRequestLimitReplenish
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conf.VisitorRequestExemptIPAddrs = visitorRequestLimitExemptIPs
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conf.VisitorEmailLimitBurst = visitorEmailLimitBurst
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conf.VisitorEmailLimitReplenish = visitorEmailLimitReplenish
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conf.BehindProxy = behindProxy
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conf.EnableWeb = enableWeb
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s, err := server.New(conf)
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if err != nil {
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log.Fatalln(err)
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}
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if err := s.Run(); err != nil {
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log.Fatalln(err)
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}
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log.Printf("Exiting.")
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return nil
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}
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func parseSize(s string, defaultValue int64) (v int64, err error) {
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if s == "" {
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return defaultValue, nil
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}
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v, err = util.ParseSize(s)
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if err != nil {
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return 0, err
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}
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return v, nil
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}
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