initial commit from taldir template

8 files changed, 467 insertions, 0 deletions

diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..b37ebbd
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "third_party/gana"]
+	path = third_party/gana
+	url = https://git.gnunet.org/git/gana
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..b896ea2
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,21 @@
+all: gana server #cli
+
+SCRIPT_TARGET:=$(shell dirname $(shell go list -f '{{.Target}}' ./cmd/mailbox-server))
+
+gana:
+	mkdir -p internal/gana
+	git submodule update --init --recursive
+	git submodule sync --recursive
+	cd third_party/gana/gnu-taler-error-codes && make taler_error_codes.go
+	cp third_party/gana/gnu-taler-error-codes/taler_error_codes.go internal/gana/
+
+server:
+	go build ./cmd/mailbox-server
+
+#cli:
+#	go build ./cmd/taldir-cli
+
+install: server #cli
+	go install ./cmd/mailbox-server #&& go install ./cmd/taldir-cli
+
+.PHONY: all gana
diff --git a/cmd/mailbox-server/main.go b/cmd/mailbox-server/main.go
new file mode 100644
index 0000000..070b7af
--- /dev/null
+++ b/cmd/mailbox-server/main.go
@@ -0,0 +1,46 @@
+// This file is part of taler-mailbox, the Taler Mailbox implementation.
+// Copyright (C) 2022 Martin Schanzenbach
+//
+// Taler-mailbox is free software: you can redistribute it and/or modify it
+// under the terms of the GNU Affero General Public License as published
+// by the Free Software Foundation, either version 3 of the License,
+// or (at your option) any later version.
+//
+// Taler-mailbox is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// SPDX-License-Identifier: AGPL3.0-or-later
+
+package main
+
+import (
+	"flag"
+	"log"
+	"net/http"
+
+	mailbox "taler.net/taler-mailbox/pkg/rest"
+)
+
+var m mailbox.Mailbox
+
+func handleRequests() {
+	log.Fatal(http.ListenAndServe(m.Cfg.Section("mailbox").Key("bind_to").MustString("localhost:11000"), m.Router))
+}
+
+func main() {
+	var cfgFlag = flag.String("c", "", "Configuration file to use")
+
+	flag.Parse()
+	cfgfile := "mailbox.conf"
+	if len(*cfgFlag) != 0 {
+		cfgfile = *cfgFlag
+	}
+	m := mailbox.Mailbox{}
+	m.Initialize(cfgfile)
+	handleRequests()
+}
diff --git a/configs/mailbox-example.conf b/configs/mailbox-example.conf
new file mode 100644
index 0000000..1a1b97d
--- /dev/null
+++ b/configs/mailbox-example.conf
@@ -0,0 +1,17 @@
+[mailbox]
+production = false
+host = "https://taldir.gnunet.org"
+bind_to = "localhost:11000"
+message_fee = KUDOS:1
+default_doc_filetype = text/html
+default_doc_lang = en
+default_tos_path = terms/
+default_pp_path = privacy/
+supported_doc_filetypes = text/html application/pdf application/epub application/xml text/plain
+
+[mailbox-pq]
+host = "localhost"
+port = 5432
+user = "taler-mailbox"
+password = "secret"
+db_name = "taler-mailbox"
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..c941a77
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,26 @@
+module taler.net/taler-mailbox
+
+go 1.18
+
+require (
+	github.com/gorilla/mux v1.8.0
+	gopkg.in/ini.v1 v1.66.6
+	gorm.io/driver/postgres v1.3.8
+	gorm.io/gorm v1.23.8
+	taler.net/taler-go.git v0.0.0-20220719135513-36eb87bf37a3
+)
+
+require (
+	github.com/jackc/chunkreader/v2 v2.0.1 // indirect
+	github.com/jackc/pgconn v1.12.1 // indirect
+	github.com/jackc/pgio v1.0.0 // indirect
+	github.com/jackc/pgpassfile v1.0.0 // indirect
+	github.com/jackc/pgproto3/v2 v2.3.0 // indirect
+	github.com/jackc/pgservicefile v0.0.0-20200714003250-2b9c44734f2b // indirect
+	github.com/jackc/pgtype v1.11.0 // indirect
+	github.com/jackc/pgx/v4 v4.16.1 // indirect
+	github.com/jinzhu/inflection v1.0.0 // indirect
+	github.com/jinzhu/now v1.1.4 // indirect
+	golang.org/x/crypto v0.0.0-20210921155107-089bfa567519 // indirect
+	golang.org/x/text v0.3.7 // indirect
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..8815945
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,193 @@
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diff --git a/pkg/rest/mailbox.go b/pkg/rest/mailbox.go
new file mode 100644
index 0000000..6774232
--- /dev/null
+++ b/pkg/rest/mailbox.go
@@ -0,0 +1,161 @@
+// This file is part of taler-mailbox, the Taler Mailbox implementation.
+// Copyright (C) 2022 Martin Schanzenbach
+//
+// Taler-mailbox is free software: you can redistribute it and/or modify it
+// under the terms of the GNU Affero General Public License as published
+// by the Free Software Foundation, either version 3 of the License,
+// or (at your option) any later version.
+//
+// Taler-mailbox is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// SPDX-License-Identifier: AGPL3.0-or-later
+
+package mailbox
+
+import (
+	"encoding/json"
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+	"time"
+
+	"github.com/gorilla/mux"
+	"gopkg.in/ini.v1"
+	"gorm.io/driver/postgres"
+	"gorm.io/gorm"
+	"gorm.io/gorm/logger"
+	"taler.net/taler-go.git/pkg/merchant"
+	tos "taler.net/taler-go.git/pkg/rest"
+)
+
+// Mailbox is the primary object of the Mailbox service
+type Mailbox struct {
+
+	// The main router
+	Router *mux.Router
+
+	// The main DB handle
+	Db *gorm.DB
+
+	// Our configuration from the config.json
+	Cfg *ini.File
+
+	// Merchant object
+	Merchant merchant.Merchant
+}
+
+// VersionResponse is the JSON response of the /config enpoint
+type VersionResponse struct {
+	// libtool-style representation of the Merchant protocol version, see
+	// https://www.gnu.org/software/libtool/manual/html_node/Versioning.html#Versioning
+	// The format is "current:revision:age".
+	Version string `json:"version"`
+
+	// Name of the protocol.
+	Name string `json:"name"` // "taler-mailbox"
+
+	// fee for one month of registration
+	MessageFee string `json:"message_fee"`
+
+	// How long will the service store a message
+	// before giving up
+	DeliveryPeriod uint64 `josn:"delivery_period"`
+}
+
+// MailboxRateLimitedResponse is the JSON response when a rate limit is hit
+type MailboxRateLimitedResponse struct {
+
+	// Taler error code, TALER_EC_TALDIR_REGISTER_RATE_LIMITED.
+	Code int `json:"code"`
+
+	// When the client should retry. Currently: In microseconds
+	RetryDelay int64 `json:"retry_delay"`
+
+	// The human readable error message.
+	Hint string `json:"hint"`
+}
+
+type message struct {
+	// ORM
+	gorm.Model `json:"-"`
+}
+
+func (m *Mailbox) configResponse(w http.ResponseWriter, r *http.Request) {
+	dpStr := m.Cfg.Section("taldir").Key("delivery_period").MustString("1w")
+	dp, err := time.ParseDuration(dpStr)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	cfg := VersionResponse{
+		Version:        "0:0:0",
+		Name:           "taler-mailbox",
+		MessageFee:     m.Cfg.Section("taldir").Key("message_fee").MustString("KUDOS:1"),
+		DeliveryPeriod: uint64(dp.Microseconds()),
+	}
+	w.Header().Set("Content-Type", "application/json")
+	response, _ := json.Marshal(cfg)
+	w.Write(response)
+}
+
+func (m *Mailbox) termsResponse(w http.ResponseWriter, r *http.Request) {
+	tos.ServiceTermsResponse(m.Cfg.Section("taldir"), w, r)
+}
+
+func (m *Mailbox) privacyResponse(w http.ResponseWriter, r *http.Request) {
+	tos.PrivacyPolicyResponse(m.Cfg.Section("taldir"), w, r)
+}
+
+func (m *Mailbox) setupHandlers() {
+	m.Router = mux.NewRouter().StrictSlash(true)
+
+	/* ToS API */
+	m.Router.HandleFunc("/terms", m.termsResponse).Methods("GET")
+	m.Router.HandleFunc("/privacy", m.privacyResponse).Methods("GET")
+
+	/* Config API */
+	m.Router.HandleFunc("/config", m.configResponse).Methods("GET")
+
+}
+
+// Initialize the Mailbox instance with cfgfile
+func (m *Mailbox) Initialize(cfgfile string) {
+	_cfg, err := ini.Load(cfgfile)
+	if err != nil {
+		fmt.Printf("Failed to read config: %v", err)
+		os.Exit(1)
+	}
+	m.Cfg = _cfg
+	if m.Cfg.Section("mailbox").Key("production").MustBool(false) {
+		fmt.Println("Production mode enabled")
+	}
+
+	psqlconn := fmt.Sprintf("host=%s port=%d user=%s password=%s dbname=%s sslmode=disable",
+		m.Cfg.Section("mailbox-pq").Key("host").MustString("localhost"),
+		m.Cfg.Section("mailbox-pq").Key("port").MustInt64(5432),
+		m.Cfg.Section("mailbox-pq").Key("user").MustString("taler-mailbox"),
+		m.Cfg.Section("mailbox-pq").Key("password").MustString("secret"),
+		m.Cfg.Section("mailbox-pq").Key("db_name").MustString("taler-mailbox"))
+	_db, err := gorm.Open(postgres.Open(psqlconn), &gorm.Config{
+		Logger: logger.Default.LogMode(logger.Silent),
+	})
+	if err != nil {
+		panic(err)
+	}
+	m.Db = _db
+	if err := m.Db.AutoMigrate(&message{}); err != nil {
+		panic(err)
+	}
+
+	merchURL := m.Cfg.Section("mailbox").Key("merchant_baseurl_private").MustString("http://merchant.mailbox/instances/myInstance")
+	merchToken := m.Cfg.Section("mailbox").Key("merchant_token").MustString("secretAccessToken")
+	m.Merchant = merchant.NewMerchant(merchURL, merchToken)
+	m.setupHandlers()
+}
diff --git a/third_party/gana b/third_party/gana
new file mode 160000
+Subproject efb03a1d25bad8bd6c40b37c9295d9b3e50ee5e