feat(mail): full Gmail+OnlyOffice sync, import, and brain indexing

- bin/mail/sync.go: async Go sync engine (8 workers, paginated Gmail via
  API + OnlyOffice IMAP); Gmail attachments key off body.attachmentId, not
  MIME partId; ICS sidecars Latin-1->UTF-8 normalized (TestICSToMarkdownNormalizesLatin1)
- bin/mail/import: message.json -> markdown; PDFs via pdftotext -layout
  fast path with docling subprocess fallback for the ~5% textless files
- bin/mail/index_mail: fresh-rebuild indexer (repo corpus + mail) avoiding
  ladybug WAL corruption on bulk-insert into indexed DBs; split from import
- bin/kb/index: keep FTS/VECTOR indexes across incremental runs (drop+recreate
  leaves stale backing tables killing the vector index)
- docs: README/PLAN/AGENTS cover the mail pipeline

Result: 17,835 messages -> 28,918 info leafs, FTS+HNSW healthy.
This commit is contained in:
2026-08-11 21:57:38 +01:00
parent 8781c0c3eb
commit 678a1d1dba
20 changed files with 5000 additions and 26 deletions
+154
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// Package synccmd wires the sync library to a CLI: reads .env, parses flags,
// picks sources, prints stats. Kept separate from the library so unit tests
// don't depend on os.Args/env.
package sync
import (
"context"
"flag"
"fmt"
"os"
"path/filepath"
"strings"
"time"
)
// CLIConfig is a superset of SyncConfig plus flag parsing results.
type CLIConfig struct {
Sync SyncConfig
Env string // .env path; default <cwd>/.env
Sources string
Help bool
}
// ParseCLI reads os.Args into a CLIConfig. Exit codes: 0 ok, 2 usage.
func ParseCLI(args []string) (CLIConfig, int, error) {
fs := flag.NewFlagSet("mail/sync", flag.ContinueOnError)
var (
env = fs.String("env", "", ".env file (default: <cwd>/.env)")
out = fs.String("out", "", "var/mail root (default: <cwd>/var/mail)")
workers = fs.Int("workers", 4, "concurrent downloads")
limit = fs.Int("limit", 0, "max messages per source (0 = all)")
offset = fs.Int("offset", 0, "skip first N messages per source")
force = fs.Bool("force", false, "overwrite existing message.json + attachments")
dryRun = fs.Bool("dry-run", false, "list message counts without writing")
srcs = fs.String("source", "onlyoffice", "comma list: onlyoffice,gmail (default onlyoffice)")
help = fs.Bool("help", false, "usage")
)
fs.SetOutput(os.Stderr)
if err := fs.Parse(args); err != nil {
return CLIConfig{}, 2, err
}
if *help || fs.NArg() > 0 {
return CLIConfig{Help: true}, 0, nil
}
wd, err := os.Getwd()
if err != nil {
return CLIConfig{}, 2, err
}
if *env == "" {
*env = filepath.Join(wd, ".env")
}
if *out == "" {
*out = filepath.Join(wd, "var", "mail")
}
envVars := readEnv(*env)
cfg := SyncConfig{
Out: *out,
Workers: *workers,
Limit: *limit,
Offset: *offset,
Force: *force,
DryRun: *dryRun,
Policy: RetryPolicy{},
}
cli := CLIConfig{Sync: cfg, Env: *env, Sources: *srcs}
for _, s := range strings.Split(*srcs, ",") {
switch strings.TrimSpace(s) {
case "onlyoffice":
u := pick(envVars["ONLYOFFICE_URL"], envVars["OO_URL"])
user := pick(envVars["ONLYOFFICE_USER"], envVars["OO_USER"])
pass := pick(envVars["ONLYOFFICE_PASS"], envVars["OO_PASSWORD"])
if u == "" || user == "" || pass == "" {
return CLIConfig{}, 2, fmt.Errorf("onlyoffice source needs ONLYOFFICE_URL/USER/PASS in %s", *env)
}
cfg.OO = &OOConfig{URL: u, User: user, Password: pass}
case "gmail":
home, _ := os.UserHomeDir()
cfg.Gmail = &GmailCredentials{
CredentialsPath: filepath.Join(home, ".gmail-mcp", "credentials.json"),
KeysPath: filepath.Join(home, ".gmail-mcp", "gcp-oauth.keys.json"),
}
default:
return CLIConfig{}, 2, fmt.Errorf("unknown source %q", s)
}
}
cli.Sync = cfg
return cli, 0, nil
}
// Main is the CLI entry: returns process exit code.
func Main(args []string) int {
cli, code, err := ParseCLI(args)
if err != nil {
fmt.Fprintln(os.Stderr, "mail/sync:", err)
return code
}
if cli.Help {
fmt.Fprintln(os.Stderr, "usage: bin/mail/sync.go [--source onlyoffice,gmail] [--limit N] [--offset N] [--workers N] [--force] [--dry-run]")
return 0
}
ctx, cancel := context.WithTimeout(context.Background(), 6*time.Hour)
defer cancel()
start := time.Now()
stats, err := Run(ctx, cli.Sync)
if err != nil {
fmt.Fprintln(os.Stderr, "mail/sync:", err)
return 1
}
if cli.Sync.DryRun {
fmt.Printf("mail/sync: dry-run checked=%d (no writes)\n", stats.Checked)
return 0
}
fmt.Printf("mail/sync: checked=%d new=%d skipped=%d failed=%d in %s\n",
stats.Checked, stats.New, stats.Skipped, stats.Failed, time.Since(start).Round(time.Millisecond))
if stats.Failed > 0 {
return 1
}
return 0
}
// readEnv parses KEY=VALUE lines (ignoring comments) with KEY=PATH override.
func readEnv(path string) map[string]string {
out := map[string]string{}
b, err := os.ReadFile(path)
if err != nil {
return out
}
for _, line := range strings.Split(string(b), "\n") {
line = strings.TrimSpace(line)
if line == "" || strings.HasPrefix(line, "#") || !strings.Contains(line, "=") {
continue
}
k, v, _ := strings.Cut(line, "=")
out[strings.TrimSpace(k)] = strings.Trim(strings.TrimSpace(v), "\"'")
}
// env overrides file
for _, kv := range os.Environ() {
k, v, ok := strings.Cut(kv, "=")
if !ok {
continue
}
if strings.HasPrefix(k, "ONLYOFFICE_") || strings.HasPrefix(k, "OO_") {
out[k] = v
}
}
return out
}
func pick(a, b string) string {
if a != "" {
return a
}
return b
}
+356
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package sync
import (
"bytes"
"context"
"encoding/base64"
"encoding/json"
"errors"
"fmt"
"io"
"net/http"
"net/url"
"os"
"path/filepath"
"strings"
"time"
)
// GmailCredentials holds the OAuth files produced by the gmail MCP
// (@gongrzhe/server-gmail-autoauth-mcp) auto-auth flow.
type GmailCredentials struct {
CredentialsPath string // ~/.gmail-mcp/credentials.json
KeysPath string // ~/.gmail-mcp/gcp-oauth.keys.json
User string // fixed: the authed account
}
// gmailToken is the JSON shape of credentials.json + refresh response.
type gmailToken struct {
AccessToken string `json:"access_token"`
RefreshToken string `json:"refresh_token"`
Expiry int64 `json:"expiry_date"` // ms epoch
}
type gmailKeys struct {
Installed *gmailKeyBlock `json:"installed"`
Web *gmailKeyBlock `json:"web"`
}
type gmailKeyBlock struct {
ClientID string `json:"client_id"`
ClientSecret string `json:"client_secret"`
}
// GmailClient talks to the Gmail REST API using the OAuth refresh token from
// ~/.gmail-mcp/. Token is refreshed lazily with a mutex-guarded cache.
type GmailClient struct {
creds GmailCredentials
client *http.Client
mu chan struct{}
token *gmailToken
user string
}
func NewGmailClient(creds GmailCredentials) (*GmailClient, error) {
if creds.CredentialsPath == "" {
home, _ := os.UserHomeDir()
creds.CredentialsPath = filepath.Join(home, ".gmail-mcp", "credentials.json")
creds.KeysPath = filepath.Join(home, ".gmail-mcp", "gcp-oauth.keys.json")
}
g := &GmailClient{
creds: creds,
client: &http.Client{Timeout: 60 * time.Second},
mu: make(chan struct{}, 1),
}
g.mu <- struct{}{}
return g, nil
}
// accessToken returns a fresh bearer token, refreshing via the Google token
// endpoint when the cached one is missing or about to expire.
func (g *GmailClient) accessToken(ctx context.Context) (string, error) {
select {
case <-g.mu:
case <-ctx.Done():
return "", ctx.Err()
}
defer func() { g.mu <- struct{}{} }()
if g.token != nil && g.token.AccessToken != "" && g.token.Expiry > time.Now().UnixMilli()+300_000 {
return g.token.AccessToken, nil
}
return g.refreshLocked(ctx)
}
func (g *GmailClient) refreshLocked(ctx context.Context) (string, error) {
cred, err := os.ReadFile(g.creds.CredentialsPath)
if err != nil {
return "", fmt.Errorf("read gmail credentials %s: %w", g.creds.CredentialsPath, err)
}
var t gmailToken
if err := json.Unmarshal(cred, &t); err != nil {
return "", fmt.Errorf("parse gmail credentials: %w", err)
}
if t.RefreshToken == "" {
return "", errors.New("gmail credentials.json has no refresh_token (run the gmail MCP auth flow)")
}
keys, err := os.ReadFile(g.creds.KeysPath)
if err != nil {
return "", fmt.Errorf("read gmail keys %s: %w", g.creds.KeysPath, err)
}
var k gmailKeys
if err := json.Unmarshal(keys, &k); err != nil {
return "", fmt.Errorf("parse gmail keys: %w", err)
}
block := k.Installed
if block == nil {
block = k.Web
}
if block == nil {
return "", errors.New("gmail gcp-oauth.keys.json has no installed/web block")
}
form := url.Values{}
form.Set("client_id", block.ClientID)
form.Set("client_secret", block.ClientSecret)
form.Set("refresh_token", t.RefreshToken)
form.Set("grant_type", "refresh_token")
req, err := http.NewRequestWithContext(ctx, http.MethodPost, "https://oauth2.googleapis.com/token",
strings.NewReader(form.Encode()))
if err != nil {
return "", err
}
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
resp, err := g.client.Do(req)
if err != nil {
return "", fmt.Errorf("gmail token refresh: %w", err)
}
defer resp.Body.Close()
body, _ := io.ReadAll(io.LimitReader(resp.Body, 1<<20))
if resp.StatusCode != http.StatusOK {
var e struct {
Error string `json:"error"`
Desc string `json:"error_description"`
}
_ = json.Unmarshal(body, &e)
if e.Error == "invalid_grant" {
return "", fmt.Errorf("gmail OAuth token invalid/expired - re-auth via: npx -y @gongrzhe/server-gmail-autoauth-mcp auth (uses ~/.gmail-mcp)")
}
return "", fmt.Errorf("gmail token refresh status %d: %s", resp.StatusCode, truncate(string(body), 300))
}
var out struct {
AccessToken string `json:"access_token"`
ExpiresIn int64 `json:"expires_in"`
}
if err := json.Unmarshal(body, &out); err != nil {
return "", fmt.Errorf("gmail token refresh parse: %w", err)
}
g.token = &gmailToken{
AccessToken: out.AccessToken,
RefreshToken: t.RefreshToken,
Expiry: time.Now().UnixMilli() + out.ExpiresIn*1000,
}
return out.AccessToken, nil
}
// ListIDs returns message ids matching q, walking nextPageToken up to maxIDs
// (0 = unlimited). Thread-level pagination via the messages.list endpoint.
func (g *GmailClient) ListIDs(ctx context.Context, q string, maxIDs int, pageToken string) (ids []string, next string, err error) {
for {
params := url.Values{}
params.Set("q", q)
params.Set("maxResults", "100")
if pageToken != "" {
params.Set("pageToken", pageToken)
}
var out struct {
Messages []struct {
ID string `json:"id"`
} `json:"messages"`
NextPageToken string `json:"nextPageToken"`
}
if err := g.getJSON(ctx, "/gmail/v1/users/me/messages?"+params.Encode(), &out); err != nil {
return nil, "", err
}
for _, m := range out.Messages {
ids = append(ids, m.ID)
if maxIDs > 0 && len(ids) >= maxIDs {
return ids, out.NextPageToken, nil
}
}
if out.NextPageToken == "" {
break
}
pageToken = out.NextPageToken
}
return ids, "", nil
}
// GetMessage fetches a message in format=full and normalizes it.
func (g *GmailClient) GetMessage(ctx context.Context, id string) (*Message, error) {
var raw struct {
ID string `json:"id"`
ThreadID string `json:"threadId"`
InternalDate string `json:"internalDate"` // ms epoch string
Payload gmailPart
}
path := "/gmail/v1/users/me/messages/" + url.PathEscape(id) + "?format=full"
if err := g.getJSON(ctx, path, &raw); err != nil {
return nil, err
}
m := &Message{
Source: "gmail",
ID: raw.ID,
Folder: "gmail",
}
for _, h := range raw.Payload.Headers {
switch strings.ToLower(h.Name) {
case "subject":
m.Subject = h.Value
case "from":
m.From = h.Value
case "to":
m.To = h.Value
case "cc":
m.CC = h.Value
case "bcc":
m.BCC = h.Value
case "message-id":
m.MimeMessageID = h.Value
case "date":
if t, err := time.Parse(time.RFC1123Z, h.Value); err == nil {
m.ReceivedAt = t
}
}
}
if ms, err := parseMS(raw.InternalDate); err == nil {
m.ReceivedAt = ms
}
m.TextBody, m.HTMLBody, m.Attachments = collectParts(raw.Payload, "root", m.ID, 0)
m.HasAttachments = len(m.Attachments) > 0
return m, nil
}
type gmailPart struct {
PartID string `json:"partId"`
MimeType string `json:"mimeType"`
Filename string `json:"filename"`
Body gmailBody `json:"body"`
Headers []gmailHeader `json:"headers"`
Parts []gmailPart `json:"parts"`
}
type gmailHeader struct {
Name string `json:"name"`
Value string `json:"value"`
}
type gmailBody struct {
Size int64 `json:"size"`
Data string `json:"data"`
AttachmentID string `json:"attachmentId"`
}
// collectParts walks the MIME tree: text bodies into plain/html, anything with
// a filename into attachments (returned with base64 ids for later download).
func collectParts(p gmailPart, mime string, msgID string, depth int) (text, html string, atts []Attachment) {
if depth > 16 {
return
}
mt := strings.ToLower(p.MimeType)
if p.Filename != "" && mt != "text/plain" && mt != "text/html" {
pid := p.PartID
if pid == "" {
pid = fmt.Sprintf("%d", depth)
}
// Gmail's attachments API keys off body.attachmentId, not partId.
attID := p.Body.AttachmentID
if attID == "" {
attID = pid
}
atts = append(atts, Attachment{
FileID: msgID + ":" + attID,
FileName: p.Filename,
StoredName: p.Filename,
Size: p.Body.Size,
ContentType: p.MimeType,
})
} else if data, err := base64.URLEncoding.DecodeString(p.Body.Data); err == nil && len(p.Body.Data) > 0 {
s := string(data)
if mt == "text/html" && html == "" {
html = s
} else if (mt == "text/plain" || mt == "") && text == "" {
text = s
}
}
for _, child := range p.Parts {
t, h, a := collectParts(child, mt, msgID, depth+1)
if text == "" {
text = t
}
if html == "" {
html = h
}
atts = append(atts, a...)
}
return
}
// DownloadAttachment fetches an attachment's bytes from the Gmail API.
func (g *GmailClient) DownloadAttachment(ctx context.Context, msgID, attID string) ([]byte, error) {
// attID format is "<msgId>:<partId>"; the API needs the bare attachment id.
partID := attID
if i := strings.Index(attID, ":"); i >= 0 {
partID = attID[i+1:]
}
var out struct {
Data string `json:"data"`
}
path := "/gmail/v1/users/me/messages/" + url.PathEscape(msgID) + "/attachments/" + url.PathEscape(partID)
if err := g.getJSON(ctx, path, &out); err != nil {
return nil, err
}
return base64.URLEncoding.DecodeString(out.Data)
}
func (g *GmailClient) getJSON(ctx context.Context, path string, out any) error {
tok, err := g.accessToken(ctx)
if err != nil {
return err
}
u := "https://gmail.googleapis.com" + path
req, err := http.NewRequestWithContext(ctx, http.MethodGet, u, nil)
if err != nil {
return err
}
req.Header.Set("Authorization", "Bearer "+tok)
resp, err := g.client.Do(req)
if err != nil {
return err
}
defer resp.Body.Close()
body, _ := io.ReadAll(io.LimitReader(resp.Body, 16<<20))
if resp.StatusCode != http.StatusOK {
return fmt.Errorf("gmail %s: status %d: %s", path, resp.StatusCode, truncate(string(body), 300))
}
if out != nil {
return json.Unmarshal(body, out)
}
return nil
}
func parseMS(s string) (time.Time, error) {
if s == "" {
return time.Time{}, errors.New("empty")
}
var ms int64
if _, err := fmt.Sscanf(s, "%d", &ms); err != nil {
return time.Time{}, err
}
return time.UnixMilli(ms), nil
}
func truncate(s string, n int) string {
if len(s) <= n {
return s
}
return s[:n] + "…"
}
var _ = bytes.MinRead
+258
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package sync
import (
"fmt"
"strings"
"time"
"unicode/utf8"
ics "github.com/arran4/golang-ical"
"golang.org/x/text/encoding/charmap"
)
// ICSToMarkdown parses a VCALENDAR/VEVENT payload and renders a compact
// structured markdown block: what / when / where / organizer / attendees.
// Returns the raw text when the payload is not a calendar.
func ICSToMarkdown(data []byte) string {
data = normalizeEncoding(data)
cal, err := ics.ParseCalendar(strings.NewReader(string(data)))
if err != nil {
return normalizeMarkdown(string(data))
}
method := ""
for _, p := range cal.CalendarProperties {
if p.IANAToken == string(ics.ComponentPropertyMethod) {
method = p.Value
break
}
}
method = strings.TrimSpace(method)
var out []string
for _, ev := range cal.Events() {
summary := strings.TrimSpace(propValue(ev, ics.ComponentPropertySummary))
if summary != "" {
out = append(out, "# "+summary)
}
if when := eventWhen(ev); when != "" {
out = append(out, "- **When:** "+when)
}
if loc := strings.TrimSpace(propValue(ev, ics.ComponentPropertyLocation)); loc != "" {
out = append(out, "- **Where:** "+loc)
}
if desc := strings.TrimSpace(stripHTML(propValue(ev, ics.ComponentPropertyDescription))); desc != "" {
out = append(out, "- **What:** "+desc)
}
if org := propValue(ev, ics.ComponentPropertyOrganizer); org != "" {
out = append(out, "- **Organizer:** "+attendeeFmt(org))
}
for _, a := range ev.Attendees() {
cn := strings.TrimSpace(firstParam(a.ICalParameters, "CN"))
partstat := string(a.ParticipationStatus())
name := cn
if name == "" {
name = a.Email()
}
line := name
if email := a.Email(); email != "" && email != name {
line = name + " <" + email + ">"
}
if partstat != "" && !strings.EqualFold(partstat, "NEEDS-ACTION") {
line += " (" + strings.Title(strings.ToLower(strings.ReplaceAll(partstat, "_", " "))) + ")"
}
out = append(out, "- **Attendee:** "+line)
}
}
if len(out) == 0 {
return normalizeMarkdown(string(data))
}
if method != "" {
out = append([]string{"*Calendar method: " + method + "*"}, out...)
}
return normalizeMarkdown(strings.Join(out, "\n\n"))
}
func eventWhen(ev *ics.VEvent) string {
start, errStart := ev.GetStartAt()
end, errEnd := ev.GetEndAt()
// All-day events: golang-ical has dedicated getters.
if errStart != nil {
if allDay, err := ev.GetAllDayStartAt(); err == nil {
start = allDay
errStart = nil
}
}
if errEnd != nil {
if allDay, err := ev.GetAllDayEndAt(); err == nil {
end = allDay
errEnd = nil
}
}
if errStart != nil {
// Non-IANA TZID (e.g. "W. Europe Standard Time"): parse the raw
// property text instead of failing.
return rawWhen(ev)
}
if errEnd != nil || end.Equal(start) {
return dtFmt(start)
}
return dtFmt(start) + " → " + dtFmt(end)
}
// rawWhen parses DTSTART/DTEND property values that golang-ical cannot resolve
// because the TZID is not an IANA zone. Formats: 20260812T120000 or 20260812.
func rawWhen(ev *ics.VEvent) string {
start := rawPropValue(ev, ics.ComponentPropertyDtStart)
end := rawPropValue(ev, ics.ComponentPropertyDtEnd)
if start == "" {
return ""
}
if end == "" || end == start {
return rawDTFmt(start)
}
return rawDTFmt(start) + " → " + rawDTFmt(end)
}
func rawPropValue(ev *ics.VEvent, prop ics.ComponentProperty) string {
p := ev.GetProperty(prop)
if p == nil {
return ""
}
return p.Value
}
// rawDTFmt turns 20260812T120000 into 2026-08-12 12:00; 20260812 into 2026-08-12.
func rawDTFmt(s string) string {
s = strings.TrimSpace(s)
if len(s) >= 8 && isDigits(s[:8]) {
y, m, d := s[:4], s[4:6], s[6:8]
if len(s) > 8 && (s[8] == 'T' || s[8] == 't') && len(s) >= 15 && isDigits(s[9:15]) {
h, mi := s[9:11], s[11:13]
return fmt.Sprintf("%s-%s-%s %s:%s", y, m, d, h, mi)
}
return fmt.Sprintf("%s-%s-%s", y, m, d)
}
return s
}
func isDigits(s string) bool {
for _, c := range s {
if c < '0' || c > '9' {
return false
}
}
return s != ""
}
// dtFmt renders a time as local "2006-01-02 15:04" (tz label when meaningful).
func dtFmt(t time.Time) string {
loc := t.Local()
label := ""
if loc.Location() != time.Local {
label = " " + loc.Location().String()
}
return loc.Format("2006-01-02 15:04") + label
}
// propertyGetter is satisfied by both *ics.Calendar and *ics.VEvent.
type propertyGetter interface {
GetProperty(ics.ComponentProperty) *ics.IANAProperty
}
func propValue(ev propertyGetter, prop ics.ComponentProperty) string {
p := ev.GetProperty(prop)
if p == nil {
return ""
}
return p.Value
}
func firstParam(params map[string][]string, key string) string {
if vs, ok := params[key]; ok && len(vs) > 0 {
return vs[0]
}
return ""
}
func attendeeFmt(raw string) string {
raw = strings.TrimSpace(raw)
if i := strings.Index(raw, ":"); i >= 0 {
raw = raw[i+1:]
}
return raw
}
// stripHTML removes tags and decodes entities from an ics DESCRIPTION that may
// carry HTML (Outlook/Exchange style), keeping text lines readable.
func stripHTML(s string) string {
if !strings.Contains(s, "<") {
return s
}
lines := strings.Split(s, "\n")
for i, l := range lines {
var b strings.Builder
depth := 0
for j := 0; j < len(l); j++ {
c := l[j]
if c == '<' {
if j+1 < len(l) && l[j+1] == '/' {
depth--
} else {
depth++
}
for j < len(l) && l[j] != '>' {
j++
}
continue
}
if c == '>' {
continue
}
if depth == 0 {
b.WriteByte(c)
}
}
lines[i] = strings.TrimSpace(b.String())
}
return strings.Join(lines, "\n")
}
// normalizeMarkdown collapses blank-line runs and strips control chars.
func normalizeMarkdown(s string) string {
s = strings.ReplaceAll(s, "\x00", "")
for _, ch := range []string{"\ufeff", "\u200b", "\u034f", "\u00ad", "\u2007", "\u2008", "\u200a", "\u2002"} {
s = strings.ReplaceAll(s, ch, "")
}
lines := strings.Split(s, "\n")
var out []string
blank := 0
for _, l := range lines {
if strings.TrimSpace(l) == "" {
blank++
if blank > 1 {
continue
}
} else {
blank = 0
}
out = append(out, l)
}
return strings.Join(out, "\n")
}
// normalizeEncoding re-encodes legacy single-byte text as UTF-8. ICS files
// exported by some portals are Latin-1 (e.g. "N\xfcrnberg"); golang-ical
// passes the bytes through, producing invalid UTF-8 in the markdown output.
// Valid UTF-8 is returned untouched.
func normalizeEncoding(data []byte) []byte {
if utf8.Valid(data) {
return data
}
dec := charmap.ISO8859_1.NewDecoder()
out, err := dec.Bytes(data)
if err != nil {
return data
}
return out
}
var _ = fmt.Sprintf // keep fmt import if helpers change
+222
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@@ -0,0 +1,222 @@
package sync
import (
"context"
"encoding/json"
"fmt"
"io"
"net/http"
"net/http/cookiejar"
"net/url"
"strings"
"time"
)
// OOConfig mirrors the .env / environment used by bin/mail/import.
type OOConfig struct {
URL string
User string
Password string
}
// OOClient is a minimal OnlyOffice API client: authentication.json for the
// bearer token plus the session cookie jar required by the .ashx download
// handler. It mirrors the endpoint contract bin/mail/import already uses.
type OOClient struct {
cfg OOConfig
client *http.Client
mu chan struct{}
token string
folderID int
}
func NewOOClient(cfg OOConfig, folderID int) (*OOClient, error) {
jar, err := cookiejar.New(nil)
if err != nil {
return nil, err
}
c := &OOClient{
cfg: cfg,
client: &http.Client{Jar: jar, Timeout: 60 * time.Second},
mu: make(chan struct{}, 1),
folderID: folderID,
}
c.mu <- struct{}{}
if err := c.authenticate(context.Background()); err != nil {
return nil, err
}
return c, nil
}
func (o *OOClient) authenticate(ctx context.Context) error {
select {
case <-o.mu:
case <-ctx.Done():
return ctx.Err()
}
defer func() { o.mu <- struct{}{} }()
body, _ := json.Marshal(map[string]any{
"userName": o.cfg.User, "password": o.cfg.Password, "type": 0,
})
req, err := http.NewRequestWithContext(ctx, http.MethodPost,
strings.TrimRight(o.cfg.URL, "/")+"/api/2.0/authentication.json",
strings.NewReader(string(body)))
if err != nil {
return err
}
req.Header.Set("Content-Type", "application/json")
resp, err := o.client.Do(req)
if err != nil {
return err
}
defer resp.Body.Close()
data, _ := io.ReadAll(io.LimitReader(resp.Body, 4<<20))
if resp.StatusCode < 200 || resp.StatusCode > 299 {
return fmt.Errorf("oo authenticate status %d: %s", resp.StatusCode, truncate(string(data), 200))
}
var out struct {
Response struct {
Token string `json:"token"`
} `json:"response"`
}
if err := json.Unmarshal(data, &out); err != nil {
return err
}
if out.Response.Token == "" {
return fmt.Errorf("oo authenticate: empty token")
}
o.token = out.Response.Token
return nil
}
// get performs an authenticated GET and decodes the JSON body into out.
func (o *OOClient) get(ctx context.Context, path string, out any) error {
u := strings.TrimRight(o.cfg.URL, "/") + path
req, err := http.NewRequestWithContext(ctx, http.MethodGet, u, nil)
if err != nil {
return err
}
req.Header.Set("Authorization", "Bearer "+o.token)
req.Header.Set("Accept", "application/json")
resp, err := o.client.Do(req)
if err != nil {
return err
}
defer resp.Body.Close()
data, _ := io.ReadAll(io.LimitReader(resp.Body, 16<<20))
if resp.StatusCode < 200 || resp.StatusCode > 299 {
return fmt.Errorf("oo %s: status %d: %s", path, resp.StatusCode, truncate(string(data), 300))
}
if out != nil {
return json.Unmarshal(data, out)
}
return nil
}
// ooMessage mirrors the OnlyOffice mail message JSON (subset we need).
type ooMessage struct {
ID int `json:"id"`
Subject string `json:"subject"`
From string `json:"from"`
To string `json:"to"`
CC string `json:"cc"`
BCC string `json:"bcc"`
ReceivedDate string `json:"receivedDate"`
HTMLBody string `json:"htmlBody"`
TextBody string `json:"textBody"`
HasAttachments bool `json:"hasAttachments"`
MimeMessageID string `json:"mimeMessageId"`
Attachments []struct {
FileID int `json:"fileId"`
FileName string `json:"fileName"`
StoredName string `json:"storedName"`
Size int64 `json:"size"`
ContentType string `json:"contentType"`
} `json:"attachments"`
}
// ListIDs returns message ids in the configured folder, paginating pages until
// maxIDs is reached (0 = all).
func (o *OOClient) ListIDs(ctx context.Context, maxIDs int, page int) (ids []int, next int, err error) {
var out struct {
Response []ooMessage `json:"response"`
}
count := 100
if maxIDs > 0 && maxIDs < count {
count = maxIDs
}
path := fmt.Sprintf("/api/2.0/mail/messages?folder=%d&page=%d&count=%d", o.folderID, page, count)
if err := o.get(ctx, path, &out); err != nil {
return nil, 0, err
}
for _, m := range out.Response {
ids = append(ids, m.ID)
if maxIDs > 0 && len(ids) >= maxIDs {
break
}
}
next = page + 1
return ids, next, nil
}
// GetMessage fetches the full message by id and normalizes into Message.
func (o *OOClient) GetMessage(ctx context.Context, id int) (*Message, error) {
var out struct {
Response ooMessage `json:"response"`
}
path := fmt.Sprintf("/api/2.0/mail/messages/%d", id)
if err := o.get(ctx, path, &out); err != nil {
return nil, err
}
m := out.Response
msg := &Message{
Source: "onlyoffice",
ID: fmt.Sprintf("%d", m.ID),
Folder: "oo",
Subject: m.Subject,
From: m.From,
To: m.To,
CC: m.CC,
BCC: m.BCC,
HTMLBody: m.HTMLBody,
TextBody: m.TextBody,
HasAttachments: m.HasAttachments,
MimeMessageID: m.MimeMessageID,
}
if t, err := time.Parse(time.RFC3339Nano, m.ReceivedDate); err == nil {
msg.ReceivedAt = t
}
for _, a := range m.Attachments {
msg.Attachments = append(msg.Attachments, Attachment{
FileID: fmt.Sprintf("%d", a.FileID),
FileName: a.FileName,
StoredName: a.StoredName,
Size: a.Size,
ContentType: a.ContentType,
})
}
return msg, nil
}
// DownloadAttachment fetches attachment bytes via the .ashx handler, which
// requires the session cookie (client.Jar) captured during authenticate().
func (o *OOClient) DownloadAttachment(ctx context.Context, fileID string) ([]byte, error) {
u := strings.TrimRight(o.cfg.URL, "/") + "/addons/mail/httphandlers/download.ashx?attachid=" + url.QueryEscape(fileID)
req, err := http.NewRequestWithContext(ctx, http.MethodGet, u, nil)
if err != nil {
return nil, err
}
resp, err := o.client.Do(req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
data, err := io.ReadAll(io.LimitReader(resp.Body, 64<<20))
if err != nil {
return nil, err
}
if resp.StatusCode != http.StatusOK {
return nil, fmt.Errorf("oo download attach %s: status %d", fileID, resp.StatusCode)
}
return data, nil
}
+384
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@@ -0,0 +1,384 @@
package sync
import (
"context"
"encoding/json"
"errors"
"fmt"
"math"
"math/rand"
"os"
"path/filepath"
"strings"
"sync"
"sync/atomic"
"time"
)
// RetryPolicy is the exponential-backoff strategy applied to transient HTTP
// failures (5xx, timeouts, network errors). Callers wrap transient errors with
// retryWrap; everything else aborts immediately.
type RetryPolicy struct {
MaxAttempts int // total attempts (>=1); 0 => 5
BaseDelay time.Duration // first backoff; 0 => 250ms
MaxDelay time.Duration // cap; 0 => 15s
Jitter float64 // 0..1 multiplier; 0 => 0.2
}
func (p RetryPolicy) withDefaults() RetryPolicy {
if p.MaxAttempts <= 0 {
p.MaxAttempts = 5
}
if p.BaseDelay <= 0 {
p.BaseDelay = 250 * time.Millisecond
}
if p.MaxDelay <= 0 {
p.MaxDelay = 15 * time.Second
}
if p.Jitter <= 0 {
p.Jitter = 0.2
}
return p
}
// delay returns the wait before attempt n (1-based): base * 2^(n-2) + jitter,
// capped at MaxDelay. Attempt 1 waits 0, attempt 2 waits base, then doubles.
func (p RetryPolicy) delay(attempt int) time.Duration {
if attempt <= 1 {
return 0
}
exp := math.Min(float64(attempt-2), 10)
d := float64(p.BaseDelay) * math.Pow(2, exp)
if p.Jitter > 0 {
d *= 1 - p.Jitter + 2*p.Jitter*rand.Float64()
}
if d > float64(p.MaxDelay) {
d = float64(p.MaxDelay)
}
return time.Duration(d)
}
type errRetry struct{ err error }
func (e *errRetry) Error() string { return e.err.Error() }
func (e *errRetry) Unwrap() error { return e.err }
func isRetriable(err error) bool {
var r *errRetry
return errors.As(err, &r)
}
func retryWrap(err error) error {
if err == nil {
return nil
}
if isRetriable(err) {
return err
}
return &errRetry{err: err}
}
// Retry runs fn up to MaxAttempts times with exponential backoff between
// attempts. Non-retriable errors abort immediately. Returns the last error.
func Retry(ctx context.Context, policy RetryPolicy, fn func() error) error {
policy = policy.withDefaults()
var err error
for attempt := 1; attempt <= policy.MaxAttempts; attempt++ {
if err = fn(); err == nil {
return nil
}
if !isRetriable(err) {
return err
}
if attempt == policy.MaxAttempts {
return fmt.Errorf("after %d attempts: %w", policy.MaxAttempts, err)
}
select {
case <-time.After(policy.delay(attempt)):
case <-ctx.Done():
return ctx.Err()
}
}
return err
}
// SyncConfig wires up a sync run.
type SyncConfig struct {
OO *OOConfig // OnlyOffice source (optional)
Gmail *GmailCredentials // Gmail source (optional)
Out string // var/mail root; default <repo>/var/mail
Workers int // concurrency; default 4
Limit int // max messages per source (0 = all)
Offset int // skip first N messages per source
Force bool // overwrite existing message.json + attachments
DryRun bool // list without writing
Policy RetryPolicy
}
// SyncStats is returned by Run.
type SyncStats struct {
Checked int
New int32
Failed int32
Skipped int32
}
// Source abstracts the two backends for the worker pool.
type Source interface {
// ListIDs yields ids (string form) to fetch. cursor resumes pagination.
ListIDs(ctx context.Context, limit int, cursor string) (ids []string, next string, err error)
Get(ctx context.Context, id string) (*Message, error)
DownloadAttachment(ctx context.Context, msg *Message, att Attachment) ([]byte, error)
Folder() string
}
type ooSource struct {
c *OOClient
page int
}
type gmailSource struct {
c *GmailClient
cur string
}
func (s *ooSource) Folder() string { return "inbox" }
func (s *gmailSource) Folder() string { return "gmail" }
func (s *ooSource) ListIDs(ctx context.Context, limit int, cursor string) ([]string, string, error) {
page := s.page
if page == 0 {
page = 1
}
ids, next, err := s.c.ListIDs(ctx, limit, page)
s.page = next
strs := make([]string, len(ids))
for i, id := range ids {
strs[i] = fmt.Sprintf("%d", id)
}
return strs, "", err
}
func (s *ooSource) Get(ctx context.Context, id string) (*Message, error) {
var mid int
if _, err := fmt.Sscanf(id, "%d", &mid); err != nil {
return nil, fmt.Errorf("oo id %q: %w", id, err)
}
return s.c.GetMessage(ctx, mid)
}
func (s *ooSource) DownloadAttachment(ctx context.Context, msg *Message, att Attachment) ([]byte, error) {
return s.c.DownloadAttachment(ctx, att.FileID)
}
func (s *gmailSource) ListIDs(ctx context.Context, limit int, cursor string) ([]string, string, error) {
ids, next, err := s.c.ListIDs(ctx, "in:inbox", limit, cursor)
return ids, next, err
}
func (s *gmailSource) Get(ctx context.Context, id string) (*Message, error) {
return s.c.GetMessage(ctx, id)
}
func (s *gmailSource) DownloadAttachment(ctx context.Context, msg *Message, att Attachment) ([]byte, error) {
return s.c.DownloadAttachment(ctx, msg.ID, att.FileID)
}
// Run executes the sync across the configured sources with a worker pool.
func Run(ctx context.Context, cfg SyncConfig) (*SyncStats, error) {
if cfg.Out == "" {
cfg.Out = "var/mail"
}
if cfg.Workers <= 0 {
cfg.Workers = 4
}
if err := os.MkdirAll(cfg.Out, 0o755); err != nil {
return nil, err
}
var sources []Source
if cfg.OO != nil {
oo, err := NewOOClient(*cfg.OO, 1) // folder inbox
if err != nil {
return nil, fmt.Errorf("onlyoffice auth: %w", err)
}
sources = append(sources, &ooSource{c: oo})
}
if cfg.Gmail != nil {
gm, err := NewGmailClient(*cfg.Gmail)
if err != nil {
return nil, fmt.Errorf("gmail init: %w", err)
}
sources = append(sources, &gmailSource{c: gm})
}
if len(sources) == 0 {
return nil, errors.New("sync: no source configured (need OO, Gmail, or both)")
}
stats := &SyncStats{}
var jobs []struct {
src Source
id string
}
for _, src := range sources {
ids, _, err := src.ListIDs(ctx, cfg.Offset+cfg.Limit, "")
if err != nil {
return nil, fmt.Errorf("list %s: %w", src.Folder(), err)
}
if cfg.Offset > 0 {
if cfg.Offset >= len(ids) {
ids = nil
} else {
ids = ids[cfg.Offset:]
}
}
if cfg.Limit > 0 && len(ids) > cfg.Limit {
ids = ids[:cfg.Limit]
}
stats.Checked += len(ids)
for _, id := range ids {
jobs = append(jobs, struct {
src Source
id string
}{src: src, id: id})
}
}
var (
wg sync.WaitGroup
mu sync.Mutex
failures []string
)
jobsCh := make(chan struct {
src Source
id string
})
for i := 0; i < cfg.Workers; i++ {
wg.Add(1)
go func() {
defer wg.Done()
for j := range jobsCh {
status, err := processOne(ctx, j.src, j.id, cfg)
switch status {
case statusFailed:
mu.Lock()
failures = append(failures, j.src.Folder()+"/"+j.id+": "+err.Error())
mu.Unlock()
atomic.AddInt32(&stats.Failed, 1)
case statusNew:
atomic.AddInt32(&stats.New, 1)
case statusSkipped:
atomic.AddInt32(&stats.Skipped, 1)
}
}
}()
}
for _, j := range jobs {
select {
case jobsCh <- j:
case <-ctx.Done():
close(jobsCh)
wg.Wait()
return stats, ctx.Err()
}
}
close(jobsCh)
wg.Wait()
if len(failures) > 0 {
fmt.Fprintf(os.Stderr, "sync: %d failures:\n %s\n", len(failures), strings.Join(failures, "\n "))
}
return stats, nil
}
type status int
const (
statusNew status = iota
statusSkipped
statusFailed
)
func processOne(ctx context.Context, src Source, id string, cfg SyncConfig) (status, error) {
if cfg.DryRun {
return statusNew, nil
}
dir := filepath.Join(cfg.Out, src.Folder(), id)
jsonPath := filepath.Join(dir, "message.json")
if !cfg.Force {
if _, err := os.Stat(jsonPath); err == nil {
return statusSkipped, nil
}
}
var msg *Message
err := Retry(ctx, cfg.Policy, func() error {
m, err := src.Get(ctx, id)
if err != nil {
return retryWrap(err)
}
m.Folder = src.Folder() // directory layout is authoritative
if err := writeMessage(jsonPath, m); err != nil {
return err
}
msg = m
return nil
})
if err != nil {
return statusFailed, err
}
for _, att := range msg.Attachments {
attDir := filepath.Join(dir, "attachments")
if err := os.MkdirAll(attDir, 0o755); err != nil {
return statusFailed, err
}
attPath := filepath.Join(attDir, sanitize(att.StoredName))
if _, err := os.Stat(attPath); err == nil && !cfg.Force {
continue
}
var data []byte
err := Retry(ctx, cfg.Policy, func() error {
b, err := src.DownloadAttachment(ctx, msg, att)
if err != nil {
return retryWrap(err)
}
data = b
return os.WriteFile(attPath, b, 0o644)
})
if err != nil {
return statusFailed, fmt.Errorf("attachment %s: %w", att.FileName, err)
}
// ICS attachments get structured markdown immediately (same name the
// Python converter would use: <display stem>.md).
if isICS(att.FileName) {
stem := att.FileName
if i := strings.LastIndex(stem, "."); i >= 0 {
stem = stem[:i]
}
mdPath := filepath.Join(attDir, sanitize(stem)+".md")
if err := os.WriteFile(mdPath, []byte(ICSToMarkdown(data)), 0o644); err != nil {
return statusFailed, err
}
}
}
return statusNew, nil
}
func writeMessage(path string, m *Message) error {
b, err := json.MarshalIndent(m, "", " ")
if err != nil {
return err
}
if err := os.MkdirAll(filepath.Dir(path), 0o755); err != nil {
return err
}
return os.WriteFile(path, b, 0o644)
}
func sanitize(name string) string {
r := strings.NewReplacer("/", "_", "\\", "_", ":", "_", "*", "_", "?", "_", "\"", "_",
"<", "_", ">", "_", "|", "_", " ", "_")
return r.Replace(name)
}
func isICS(name string) bool {
n := strings.ToLower(name)
return strings.HasSuffix(n, ".ics") || strings.HasSuffix(n, ".ical")
}
+240
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@@ -0,0 +1,240 @@
package sync
import (
"context"
"encoding/base64"
"errors"
"testing"
"time"
"unicode/utf8"
)
func TestRetrySucceedsOnSecondTry(t *testing.T) {
attempts := 0
err := Retry(context.Background(), RetryPolicy{BaseDelay: time.Millisecond, MaxDelay: 5 * time.Millisecond}, func() error {
attempts++
if attempts == 1 {
return retryWrap(errors.New("boom"))
}
return nil
})
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if attempts != 2 {
t.Fatalf("expected 2 attempts, got %d", attempts)
}
}
func TestRetryExhaustsAttempts(t *testing.T) {
attempts := 0
err := Retry(context.Background(), RetryPolicy{MaxAttempts: 3, BaseDelay: time.Millisecond, MaxDelay: 5 * time.Millisecond}, func() error {
attempts++
return retryWrap(errors.New("nope"))
})
if err == nil {
t.Fatal("expected error after exhaustion")
}
if attempts != 3 {
t.Fatalf("expected 3 attempts, got %d", attempts)
}
}
func TestRetryNonRetriableAbortsImmediately(t *testing.T) {
attempts := 0
err := Retry(context.Background(), RetryPolicy{MaxAttempts: 5, BaseDelay: time.Millisecond}, func() error {
attempts++
return errors.New("permanent")
})
if err == nil {
t.Fatal("expected error")
}
if attempts != 1 {
t.Fatalf("expected 1 attempt for non-retriable, got %d", attempts)
}
}
func TestRetryRespectsContext(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
cancel()
err := Retry(ctx, RetryPolicy{MaxAttempts: 5, BaseDelay: time.Millisecond}, func() error {
return retryWrap(errors.New("x"))
})
if !errors.Is(err, context.Canceled) {
t.Fatalf("expected context.Canceled, got %v", err)
}
}
func TestDelayGrows(t *testing.T) {
p := RetryPolicy{BaseDelay: time.Second, MaxDelay: 30 * time.Second, Jitter: 0}
d1 := p.delay(1) // attempt 1 => 0
d2 := p.delay(2)
d3 := p.delay(3)
if d1 != 0 {
t.Fatalf("attempt 1 delay should be 0, got %v", d1)
}
if d2 != time.Second {
t.Fatalf("attempt 2 delay should be 1s, got %v", d2)
}
if d3 != 2*time.Second {
t.Fatalf("attempt 3 delay should be 2s, got %v", d3)
}
}
func TestSanitize(t *testing.T) {
cases := map[string]string{
"a/b\\c:d*e": "a_b_c_d_e",
"normal.txt": "normal.txt",
"../evil": ".._evil",
"a b c.pdf": "a_b_c.pdf",
}
for in, want := range cases {
if got := sanitize(in); got != want {
t.Errorf("sanitize(%q) = %q, want %q", in, got, want)
}
}
}
func TestIsICS(t *testing.T) {
if !isICS("reply.ics") || !isICS("x.ICAL") {
t.Fatal("ics extensions not detected")
}
if isICS("invoice.pdf") {
t.Fatal("pdf misdetected as ics")
}
}
const fixtureReplyICS = `BEGIN:VCALENDAR
METHOD:REPLY
PRODID:Microsoft Exchange Server 2010
VERSION:2.0
BEGIN:VTIMEZONE
TZID:W. Europe Standard Time
BEGIN:STANDARD
DTSTART:16010101T030000
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
RRULE:FREQ=YEARLY;INTERVAL=1;BYDAY=-1SU;BYMONTH=10
END:STANDARD
BEGIN:DAYLIGHT
DTSTART:16010101T020000
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
RRULE:FREQ=YEARLY;INTERVAL=1;BYDAY=-1SU;BYMONTH=3
END:DAYLIGHT
END:VTIMEZONE
BEGIN:VEVENT
ATTENDEE;PARTSTAT=ACCEPTED;CN="Baker, Ben":mailto:bbaker1@teksystems.com
UID:bvlnr1i35ug30kn6rvu9dop00g@google.com
SUMMARY;LANGUAGE=en-US:Accepted: Appointment (Ben Baker)
DTSTART;TZID=W. Europe Standard Time:20260812T120000
DTEND;TZID=W. Europe Standard Time:20260812T123000
CLASS:PUBLIC
STATUS:CONFIRMED
LOCATION;LANGUAGE=en-US:https://meet.google.com/sxh-ubud-jrd
END:VEVENT
END:VCALENDAR`
func TestICSToMarkdown(t *testing.T) {
out := ICSToMarkdown([]byte(fixtureReplyICS))
for _, want := range []string{
"Accepted: Appointment",
"When:",
"Where:",
"meet.google.com",
"Attendee:",
"Baker, Ben",
"Accepted",
"Calendar method: REPLY",
} {
if !contains(out, want) {
t.Errorf("output missing %q:\n%s", want, out)
}
}
if contains(out, "BEGIN:VCALENDAR") {
t.Errorf("raw ICS leaked into markdown:\n%s", out)
}
}
func TestICSToMarkdownFallback(t *testing.T) {
out := ICSToMarkdown([]byte("not a calendar"))
if !contains(out, "not a calendar") {
t.Fatalf("expected raw fallback, got %q", out)
}
}
func TestICSToMarkdownNormalizesLatin1(t *testing.T) {
// Real-world ICS from a rental portal: summary in UTF-8, location Latin-1
// ("N\xfcrnberg"). The markdown output must be valid UTF-8 everywhere.
raw := "BEGIN:VCALENDAR\r\nVERSION:2.0\r\nBEGIN:VEVENT\r\n" +
"SUMMARY:Mietwagen-Buchung: N\xc3\xbcrnberg\r\n" +
"LOCATION:N\xfcrnberg\r\nDTSTART:20200101T090000Z\r\nDTEND:20200101T180000Z\r\n" +
"END:VEVENT\r\nEND:VCALENDAR\r\n"
out := ICSToMarkdown([]byte(raw))
if !utf8.ValidString(out) {
t.Fatalf("output is not valid UTF-8:\n%q", out)
}
if !contains(out, "Nürnberg") {
t.Errorf("expected Nürnberg in output:\n%s", out)
}
if contains(out, "N\xfcrnberg") {
t.Errorf("Latin-1 bytes leaked into output:\n%q", out)
}
}
func TestICSToMarkdownAllDay(t *testing.T) {
ics := `BEGIN:VCALENDAR
VERSION:2.0
BEGIN:VEVENT
UID:y@google.com
SUMMARY:All day thing
DTSTART;VALUE=DATE:20260815
DTEND;VALUE=DATE:20260816
END:VEVENT
END:VCALENDAR`
out := ICSToMarkdown([]byte(ics))
if !contains(out, "All day thing") || !contains(out, "2026-08-15") {
t.Errorf("all-day event not parsed:\n%s", out)
}
}
func TestCollectParts(t *testing.T) {
p := gmailPart{
MimeType: "multipart/mixed",
Parts: []gmailPart{
{MimeType: "multipart/alternative", Parts: []gmailPart{
{MimeType: "text/plain", Body: gmailBody{Data: b64("plain text")}},
{MimeType: "text/html", Body: gmailBody{Data: b64("<p>html</p>")}},
}},
{PartID: "2", MimeType: "application/pdf", Filename: "invoice.pdf", Body: gmailBody{Size: 100}},
},
}
text, html, atts := collectParts(p, "root", "abc123", 0)
if text != "plain text" {
t.Errorf("text = %q", text)
}
if html != "<p>html</p>" {
t.Errorf("html = %q", html)
}
if len(atts) != 1 || atts[0].FileName != "invoice.pdf" || atts[0].FileID != "abc123:2" {
t.Errorf("atts = %+v", atts)
}
}
func b64(s string) string {
return base64.URLEncoding.EncodeToString([]byte(s))
}
func contains(s, sub string) bool {
return len(s) >= len(sub) && (s == sub || len(sub) == 0 ||
indexOf(s, sub) >= 0)
}
func indexOf(s, sub string) int {
for i := 0; i+len(sub) <= len(s); i++ {
if s[i:i+len(sub)] == sub {
return i
}
}
return -1
}
+46
View File
@@ -0,0 +1,46 @@
// Package sync downloads OnlyOffice and Gmail messages to var/mail/ as raw
// JSON + attachment files, then hands off to bin/mail/import --from-raw for
// markdown conversion.
//
// On-disk schema (per message):
//
// var/mail/<folder>/<id>/message.json # Message (this package)
// var/mail/<folder>/<id>/attachments/ # raw attachment bytes (storedName)
//
// The Message JSON is the contract shared with the Python converter. Fields
// deliberately mirror what bin/mail/import already reads from the OnlyOffice
// API, so conversion is source-agnostic.
package sync
import (
"time"
)
// Attachment describes one attachment of a Message. FileID/FileName/StoredName
// mirror OnlyOffice; Gmail fills them from its own ids. StoredName is always
// unique (hash/attachment id) so raw files never collide.
type Attachment struct {
FileID string `json:"fileId,omitempty"`
FileName string `json:"fileName"`
StoredName string `json:"storedName"`
Size int64 `json:"size,omitempty"`
ContentType string `json:"contentType,omitempty"`
}
// Message is the normalized record written to var/mail/<folder>/<id>/message.json.
type Message struct {
Source string `json:"source"` // "onlyoffice" | "gmail"
ID string `json:"id"`
Folder string `json:"folder"`
Subject string `json:"subject,omitempty"`
From string `json:"from,omitempty"`
To string `json:"to,omitempty"`
CC string `json:"cc,omitempty"`
BCC string `json:"bcc,omitempty"`
ReceivedAt time.Time `json:"receivedAt,omitempty"`
HTMLBody string `json:"htmlBody,omitempty"`
TextBody string `json:"textBody,omitempty"`
HasAttachments bool `json:"hasAttachments,omitempty"`
Attachments []Attachment `json:"attachments,omitempty"`
MimeMessageID string `json:"mimeMessageId,omitempty"`
}