stable download metadata page
This commit is contained in:
418
Gateway.go
418
Gateway.go
@@ -7,278 +7,278 @@ Author: Peter Kleissner
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package main
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package main
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import (
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import (
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"crypto/tls"
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"crypto/tls"
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"encoding/hex"
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"encoding/hex"
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"fmt"
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"fmt"
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"io"
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"io"
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"net"
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"net"
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"net/http"
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"net/http"
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"path"
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"path"
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"strings"
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"strings"
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"time"
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"time"
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"github.com/PeernetOfficial/core"
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"github.com/PeernetOfficial/core"
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"github.com/PeernetOfficial/core/btcec"
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"github.com/PeernetOfficial/core/btcec"
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"github.com/PeernetOfficial/core/webapi"
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"github.com/PeernetOfficial/core/webapi"
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"github.com/gorilla/mux"
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"github.com/gorilla/mux"
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)
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)
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func startWebGateway(backend *core.Backend) {
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func startWebGateway(backend *core.Backend) {
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router := mux.NewRouter()
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router := mux.NewRouter()
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router.PathPrefix("/static/").Handler(
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router.PathPrefix("/static/").Handler(
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http.StripPrefix("/static/",
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http.StripPrefix("/static/",
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http.FileServer(
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http.FileServer(
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http.Dir("./html"),
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http.Dir("./html"),
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),
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),
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),
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),
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)
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)
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router.PathPrefix("/").Handler(http.HandlerFunc(webGatewayHandler(backend))).Methods("GET")
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router.PathPrefix("/").Handler(http.HandlerFunc(webGatewayHandler(backend))).Methods("GET")
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for _, listen := range config.WebListen {
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for _, listen := range config.WebListen {
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go startWebServer(backend, listen, config.WebUseSSL, config.WebCertificateFile, config.WebCertificateKey, router, "Web Listen", parseDuration(config.WebTimeoutRead), parseDuration(config.WebTimeoutWrite))
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go startWebServer(backend, listen, config.WebUseSSL, config.WebCertificateFile, config.WebCertificateKey, router, "Web Listen", parseDuration(config.WebTimeoutRead), parseDuration(config.WebTimeoutWrite))
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}
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}
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if config.Redirect80 != "" {
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if config.Redirect80 != "" {
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go webRedirect80(config.Redirect80)
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go webRedirect80(config.Redirect80)
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}
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}
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// wait forever
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// wait forever
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select {}
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select {}
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}
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}
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// startWebServer starts the web-server and may block forever
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// startWebServer starts the web-server and may block forever
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func startWebServer(backend *core.Backend, WebListen string, UseSSL bool, CertificateFile, CertificateKey string, Handler http.Handler, Info string, ReadTimeout, WriteTimeout time.Duration) {
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func startWebServer(backend *core.Backend, WebListen string, UseSSL bool, CertificateFile, CertificateKey string, Handler http.Handler, Info string, ReadTimeout, WriteTimeout time.Duration) {
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//func startWebServer(backend *core.Backend, webListen string, useSSL bool, certificateFile, certificateKey string, server *http.Server) {
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//func startWebServer(backend *core.Backend, webListen string, useSSL bool, certificateFile, certificateKey string, server *http.Server) {
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backend.LogError("startWebServer", "Web Gateway to listen on '%s'", WebListen)
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backend.LogError("startWebServer", "Web Gateway to listen on '%s'", WebListen)
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tlsConfig := &tls.Config{MinVersion: tls.VersionTLS12} // for security reasons disable TLS 1.0/1.1
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tlsConfig := &tls.Config{MinVersion: tls.VersionTLS12} // for security reasons disable TLS 1.0/1.1
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server := &http.Server{
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server := &http.Server{
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Addr: WebListen,
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Addr: WebListen,
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Handler: Handler,
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Handler: Handler,
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ReadTimeout: ReadTimeout, // ReadTimeout is the maximum duration for reading the entire request, including the body.
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ReadTimeout: ReadTimeout, // ReadTimeout is the maximum duration for reading the entire request, including the body.
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WriteTimeout: WriteTimeout, // WriteTimeout is the maximum duration before timing out writes of the response. This includes processing time and is therefore the max time any HTTP function may take.
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WriteTimeout: WriteTimeout, // WriteTimeout is the maximum duration before timing out writes of the response. This includes processing time and is therefore the max time any HTTP function may take.
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//IdleTimeout: IdleTimeout, // IdleTimeout is the maximum amount of time to wait for the next request when keep-alives are enabled.
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//IdleTimeout: IdleTimeout, // IdleTimeout is the maximum amount of time to wait for the next request when keep-alives are enabled.
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TLSConfig: tlsConfig,
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TLSConfig: tlsConfig,
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}
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}
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if UseSSL {
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if UseSSL {
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// HTTPS
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// HTTPS
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if err := server.ListenAndServeTLS(CertificateFile, CertificateKey); err != nil {
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if err := server.ListenAndServeTLS(CertificateFile, CertificateKey); err != nil {
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backend.LogError("startWebServer", "Error listening on '%s': %v\n", WebListen, err)
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backend.LogError("startWebServer", "Error listening on '%s': %v\n", WebListen, err)
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}
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}
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} else {
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} else {
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// HTTP
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// HTTP
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if err := server.ListenAndServe(); err != nil {
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if err := server.ListenAndServe(); err != nil {
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backend.LogError("startWebServer", "Error listening on '%s': %v\n", WebListen, err)
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backend.LogError("startWebServer", "Error listening on '%s': %v\n", WebListen, err)
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}
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}
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}
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}
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}
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}
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// parseDuration is the same as time.ParseDuration without returning an error. Valid units are ms, s, m, h. For example "10s".
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// parseDuration is the same as time.ParseDuration without returning an error. Valid units are ms, s, m, h. For example "10s".
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func parseDuration(input string) (result time.Duration) {
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func parseDuration(input string) (result time.Duration) {
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result, _ = time.ParseDuration(input)
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result, _ = time.ParseDuration(input)
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return
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return
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}
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}
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func redirect(w http.ResponseWriter, r *http.Request) {
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func redirect(w http.ResponseWriter, r *http.Request) {
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http.Redirect(w, r, "https://"+r.Host+r.URL.String(), http.StatusMovedPermanently)
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http.Redirect(w, r, "https://"+r.Host+r.URL.String(), http.StatusMovedPermanently)
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}
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}
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func webRedirect80(listen80 string) {
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func webRedirect80(listen80 string) {
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// redirect HTTP -> HTTPS
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// redirect HTTP -> HTTPS
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http.ListenAndServe(net.JoinHostPort(listen80, "80"), http.HandlerFunc(redirect))
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http.ListenAndServe(net.JoinHostPort(listen80, "80"), http.HandlerFunc(redirect))
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}
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}
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func webGatewayHandler(backend *core.Backend) func(w http.ResponseWriter, r *http.Request) {
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func webGatewayHandler(backend *core.Backend) func(w http.ResponseWriter, r *http.Request) {
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return func(w http.ResponseWriter, r *http.Request) {
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return func(w http.ResponseWriter, r *http.Request) {
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// For security and simplicity reasons, below paths are hard-coded.
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// For security and simplicity reasons, below paths are hard-coded.
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// Using arbitrary user input is an avoidable security risk here.
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// Using arbitrary user input is an avoidable security risk here.
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switch r.URL.Path {
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switch r.URL.Path {
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case "/", "/index.html":
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case "/", "/index.html":
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http.ServeFile(w, r, path.Join(config.WebFiles, "index.html"))
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http.ServeFile(w, r, path.Join(config.WebFiles, "index.html"))
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return
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return
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case "/favicon.ico":
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case "/favicon.ico":
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http.ServeFile(w, r, path.Join(config.WebFiles, "favicon.ico"))
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http.ServeFile(w, r, path.Join(config.WebFiles, "favicon.ico"))
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return
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return
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case "/download":
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case "/download":
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http.ServeFile(w, r, path.Join(config.WebFiles, "download.html"))
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http.ServeFile(w, r, path.Join(config.WebFiles, "download.html"))
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return
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return
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}
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}
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// Assume it is in the format "/[blockchain public key]/[file hash]".
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// Assume it is in the format "/[blockchain public key]/[file hash]".
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// Remove slash prefix and suffix.
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// Remove slash prefix and suffix.
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pathA := strings.TrimPrefix(strings.TrimSuffix(r.URL.Path, "/"), "/")
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pathA := strings.TrimPrefix(strings.TrimSuffix(r.URL.Path, "/"), "/")
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pathParts := strings.Split(pathA, "/")
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pathParts := strings.Split(pathA, "/")
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if len(pathParts) != 1 && len(pathParts) != 2 {
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if len(pathParts) != 1 && len(pathParts) != 2 {
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http.Error(w, "404 not found", http.StatusNotFound)
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http.Error(w, "404 not found", http.StatusNotFound)
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return
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return
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}
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}
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// Default timeout for connection is 10 seconds. This will be an optional parameter in the future.
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// Default timeout for connection is 10 seconds. This will be an optional parameter in the future.
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timeout := 10 * time.Second
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timeout := 10 * time.Second
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// First part must be the public key as peer ID or node ID, hex encoded. Form: "/[blockchain public key]"
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// First part must be the public key as peer ID or node ID, hex encoded. Form: "/[blockchain public key]"
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nodeIDA := pathParts[0]
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nodeIDA := pathParts[0]
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nodeID, validNodeID := webapi.DecodeBlake3Hash(nodeIDA)
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nodeID, validNodeID := webapi.DecodeBlake3Hash(nodeIDA)
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publicKey, errPK := core.PublicKeyFromPeerID(nodeIDA)
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publicKey, errPK := core.PublicKeyFromPeerID(nodeIDA)
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if !validNodeID && errPK != nil {
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if !validNodeID && errPK != nil {
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http.Error(w, "Invalid NodeID", http.StatusBadRequest)
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http.Error(w, "Invalid NodeID", http.StatusBadRequest)
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return
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return
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}
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}
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if !validNodeID {
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if !validNodeID {
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nodeID = []byte{}
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nodeID = []byte{}
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}
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}
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// Check if a blockchain is requested.
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// Check if a blockchain is requested.
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// The format must be "/[blockchain public key]". Part 1 = hex encoding, peer ID or node ID.
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// The format must be "/[blockchain public key]". Part 1 = hex encoding, peer ID or node ID.
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if len(pathParts) == 1 {
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if len(pathParts) == 1 {
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webGatewayShowBlockchain(backend, w, r, nodeID, publicKey, timeout)
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webGatewayShowBlockchain(backend, w, r, nodeID, publicKey, timeout)
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} else if len(pathParts) == 2 {
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} else if len(pathParts) == 2 {
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// Check if a specific file on a specific blockchain is requested.
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// Check if a specific file on a specific blockchain is requested.
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// The format must be "/[blockchain public key]/[file hash]". Part 2 = hex encoding, blake3 hash.
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// The format must be "/[blockchain public key]/[file hash]". Part 2 = hex encoding, blake3 hash.
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hash, valid := webapi.DecodeBlake3Hash(pathParts[1])
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hash, valid := webapi.DecodeBlake3Hash(pathParts[1])
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if !valid {
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if !valid {
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http.Error(w, "Invalid file hash.", http.StatusBadRequest)
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http.Error(w, "Invalid file hash.", http.StatusBadRequest)
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return
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return
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}
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}
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webGatewayShowFile(backend, w, r, nodeID, publicKey, hash, timeout)
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webGatewayShowFile(backend, w, r, nodeID, publicKey, hash, timeout)
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}
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}
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// Check if an arbitrary directory on a specific blockchain is requested.
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// Check if an arbitrary directory on a specific blockchain is requested.
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// Directories are identified by name.
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// Directories are identified by name.
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// TODO
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// TODO
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//http.Error(w, "test handler", http.StatusOK)
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//http.Error(w, "test handler", http.StatusOK)
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}
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}
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}
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}
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func webGatewayShowBlockchain(backend *core.Backend, w http.ResponseWriter, r *http.Request, nodeID []byte, publicKey *btcec.PublicKey, timeout time.Duration) {
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func webGatewayShowBlockchain(backend *core.Backend, w http.ResponseWriter, r *http.Request, nodeID []byte, publicKey *btcec.PublicKey, timeout time.Duration) {
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var err error
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var err error
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var peer *core.PeerInfo
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var peer *core.PeerInfo
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if len(nodeID) != 0 {
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if len(nodeID) != 0 {
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peer, err = webapi.PeerConnectNode(backend, nodeID, timeout)
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peer, err = webapi.PeerConnectNode(backend, nodeID, timeout)
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} else {
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} else {
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peer, err = webapi.PeerConnectPublicKey(backend, publicKey, timeout)
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peer, err = webapi.PeerConnectPublicKey(backend, publicKey, timeout)
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}
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}
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if err != nil {
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if err != nil {
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http.Error(w, "Could not connect to remote peer. 😢", http.StatusNotFound)
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http.Error(w, "Could not connect to remote peer. 😢", http.StatusNotFound)
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return
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return
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}
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}
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// connection established!
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// connection established!
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text := fmt.Sprintf("Peer %s blockchain height %d version %d\nUser Agent: %s\n", hex.EncodeToString(peer.NodeID), peer.BlockchainHeight, peer.BlockchainVersion, peer.UserAgent)
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text := fmt.Sprintf("Peer %s blockchain height %d version %d\nUser Agent: %s\n", hex.EncodeToString(peer.NodeID), peer.BlockchainHeight, peer.BlockchainVersion, peer.UserAgent)
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http.Error(w, text, http.StatusOK)
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http.Error(w, text, http.StatusOK)
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}
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}
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// MetaDataResponse meta data struct
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// MetaDataResponse meta data struct
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type MetaDataResponse struct {
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type MetaDataResponse struct {
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Name string
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Name string
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Hash []byte
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Hash []byte
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Size uint64
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Size uint64
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}
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}
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func webGatewayShowFile(backend *core.Backend, w http.ResponseWriter, r *http.Request, nodeID []byte, publicKey *btcec.PublicKey, fileHash []byte, timeout time.Duration) {
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func webGatewayShowFile(backend *core.Backend, w http.ResponseWriter, r *http.Request, nodeID []byte, publicKey *btcec.PublicKey, fileHash []byte, timeout time.Duration) {
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var err error
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var err error
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var peer *core.PeerInfo
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var peer *core.PeerInfo
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if len(nodeID) != 0 {
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if len(nodeID) != 0 {
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peer, err = webapi.PeerConnectNode(backend, nodeID, timeout)
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peer, err = webapi.PeerConnectNode(backend, nodeID, timeout)
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} else {
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} else {
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peer, err = webapi.PeerConnectPublicKey(backend, publicKey, timeout)
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peer, err = webapi.PeerConnectPublicKey(backend, publicKey, timeout)
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}
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}
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if err != nil {
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if err != nil {
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http.Error(w, "Could not connect to remote peer. 😢", http.StatusNotFound)
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http.Error(w, "Could not connect to remote peer. 😢", http.StatusNotFound)
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return
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return
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}
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}
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// Todo: Try webapi.serveFileFromWarehouse
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// Todo: Try webapi.serveFileFromWarehouse
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// Todo: Cache.
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// Todo: Cache.
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offset := 0
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offset := 0
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limit := 0
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limit := 0
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// start the reader
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// start the reader
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//reader, fileSize, transferSize, err := webapi.FileStartReader(peer, fileHash, uint64(offset), uint64(limit), r.Context().Done())
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//reader, fileSize, transferSize, err := webapi.FileStartReader(peer, fileHash, uint64(offset), uint64(limit), r.Context().Done())
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reader, fileSize, transferSize, err := webapi.FileStartReader(peer, fileHash, uint64(offset), uint64(limit), r.Context().Done())
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reader, fileSize, transferSize, err := webapi.FileStartReader(peer, fileHash, uint64(offset), uint64(limit), r.Context().Done())
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if reader != nil {
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if reader != nil {
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defer reader.Close()
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defer reader.Close()
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}
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}
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if err != nil || reader == nil {
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if err != nil || reader == nil {
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http.Error(w, "File not found.", http.StatusNotFound)
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http.Error(w, "File not found.", http.StatusNotFound)
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return
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return
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}
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}
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|
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// if get request ?download=true
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// if get request ?download=true
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// trigger download of the file
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// trigger download of the file
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download := r.URL.Query().Get("download")
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download := r.URL.Query().Get("download")
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metadata := r.URL.Query().Get("metadata")
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metadata := r.URL.Query().Get("metadata")
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filename := r.URL.Query().Get("filename")
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filename := r.URL.Query().Get("filename")
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|
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//// look up file based on NodeID
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//// look up file based on NodeID
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//var resultMap map[uuid.UUID]*search.SearchIndexRecord
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//var resultMap map[uuid.UUID]*search.SearchIndexRecord
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//data, _ := peer.Backend.SearchIndex.Database.Get(fileHash)
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//data, _ := peer.Backend.SearchIndex.Database.Get(fileHash)
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//err = peer.Backend.SearchIndex.LookupHash(search.SearchSelector{Hash: fileHash}, resultMap)
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//err = peer.Backend.SearchIndex.LookupHash(search.SearchSelector{Hash: fileHash}, resultMap)
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//if err != nil {
|
//if err != nil {
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// fmt.Println(err)
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// fmt.Println(err)
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||||||
//}
|
//}
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//
|
//
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//var fileIndexRecord search.SearchIndexRecord
|
//var fileIndexRecord search.SearchIndexRecord
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//// looping over results and ensuring the public key matches
|
//// looping over results and ensuring the public key matches
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//// This is to ensure the correct NodeID matches with the correct hash
|
//// This is to ensure the correct NodeID matches with the correct hash
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||||||
//for i, _ := range resultMap {
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//for i, _ := range resultMap {
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// if resultMap[i].PublicKey == peer.PublicKey {
|
// if resultMap[i].PublicKey == peer.PublicKey {
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// resultMap[i] = &fileIndexRecord
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// resultMap[i] = &fileIndexRecord
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// break
|
// break
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// }
|
// }
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//}
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//}
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|
|
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//// Get information from the blockchain about a particular file
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//// Get information from the blockchain about a particular file
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//file, _, found, err := backend.ReadFile(peer.PublicKey, peer.BlockchainVersion, fileIndexRecord.BlockNumber, fileIndexRecord.FileID)
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//file, _, found, err := backend.ReadFile(peer.PublicKey, peer.BlockchainVersion, fileIndexRecord.BlockNumber, fileIndexRecord.FileID)
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//if err != nil {
|
//if err != nil {
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||||||
// fmt.Println(err)
|
// fmt.Println(err)
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||||||
// fmt.Println(found)
|
// fmt.Println(found)
|
||||||
//}
|
//}
|
||||||
|
|
||||||
var responseMetadata MetaDataResponse
|
var responseMetadata MetaDataResponse
|
||||||
|
|
||||||
//// Get name from file information
|
//// Get name from file information
|
||||||
//for i, _ := range file.Tags {
|
//for i, _ := range file.Tags {
|
||||||
// // This is for the file name
|
// // This is for the file name
|
||||||
// if blockchain.TagName == file.Tags[i].Type {
|
// if blockchain.TagName == file.Tags[i].Type {
|
||||||
// responseMetadata.Name = file.Tags[i].Text()
|
// responseMetadata.Name = file.Tags[i].Text()
|
||||||
// }
|
// }
|
||||||
//}
|
//}
|
||||||
|
|
||||||
if filename != "" {
|
if filename != "" {
|
||||||
responseMetadata.Name = filename
|
responseMetadata.Name = filename
|
||||||
}
|
}
|
||||||
|
|
||||||
if download == "true" {
|
if download == "true" {
|
||||||
w.Header().Set("Content-Disposition", "attachment; filename="+responseMetadata.Name)
|
w.Header().Set("Content-Disposition", "attachment; filename="+responseMetadata.Name)
|
||||||
// JSON response with meta data instead
|
// JSON response with meta data instead
|
||||||
io.Copy(w, io.LimitReader(reader, int64(transferSize)))
|
io.Copy(w, io.LimitReader(reader, int64(transferSize)))
|
||||||
return
|
return
|
||||||
} else if metadata == "true" {
|
} else if metadata == "true" {
|
||||||
// JSON response of the file meta-data
|
// JSON response of the file meta-data
|
||||||
responseMetadata.Size = fileSize
|
responseMetadata.Size = fileSize
|
||||||
responseMetadata.Hash = fileHash
|
responseMetadata.Hash = fileHash
|
||||||
|
|
||||||
webapi.EncodeJSON(backend, w, r, responseMetadata)
|
webapi.EncodeJSON(backend, w, r, responseMetadata)
|
||||||
return
|
return
|
||||||
}
|
}
|
||||||
|
|
||||||
// set the right headers
|
// set the right headers
|
||||||
//webapi.setContentLengthRangeHeader(w, uint64(offset), transferSize, fileSize, ranges)
|
//webapi.setContentLengthRangeHeader(w, uint64(offset), transferSize, fileSize, ranges)
|
||||||
|
|
||||||
http.ServeFile(w, r, path.Join(config.WebFiles, "download.html"))
|
http.ServeFile(w, r, path.Join(config.WebFiles, "download.html"))
|
||||||
|
|
||||||
// Start sending the data!
|
// Start sending the data!
|
||||||
//io.Copy(w, io.LimitReader(reader, int64(transferSize)))
|
//io.Copy(w, io.LimitReader(reader, int64(transferSize)))
|
||||||
}
|
}
|
||||||
|
|||||||
Reference in New Issue
Block a user