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How to use extract method of imap Package

Best Venom code snippet using imap.extract

map.go

Source:map.go

...70// overwrite if a value with the same primary key existed.71// NOTE: insert an modified existed value with the same address may confuse the index, use Update() to do this.72func (imap *IndexMap[K, V]) Insert(values ...*V) {73	for i := range values {74		old := imap.Get(imap.primaryIndex.extractField(values[i]))75		imap.primaryIndex.insert(values[i])76		for _, index := range imap.indexes {77			if old != nil {78				index.remove(old)79			}80			index.insert(values[i])81		}82	}83}84// An UpdateFn modifies the given value,85// and returns the modified value, they could be the same object,86// true if the object is modified,87// false otherwise88type UpdateFn[V any] func(value *V) (*V, bool)89// Update the value for the given key,90// it removes the old one if exists, and inserts updateFn(old) if modified and not nil.91func (imap *IndexMap[K, V]) Update(key K, updateFn UpdateFn[V]) {92	old := imap.Get(key)93	if old != nil {94		imap.Remove(key)95	}96	new, modified := updateFn(old)97	if modified && new != nil {98		imap.Insert(new)99	}100}101// Update the values for the given index and key,102// it removes the old ones if exist, and inserts updateFn(old) for every old ones if not nil.103// NOTE: the modified values have to be with unique primary key104func (imap *IndexMap[K, V]) UpdateBy(indexName string, key any, updateFn UpdateFn[V]) {105	oldValueSet := imap.getAllBy(indexName, key)106	if len(oldValueSet) == 0 {107		return108	}109	oldValues := oldValueSet.Collect()110	imap.removeValues(oldValues...)111	for _, old := range oldValues {112		new, modified := updateFn(old)113		if modified && new != nil {114			imap.Insert(new)115		}116	}117}118// Remove values into the map,119// also updates the indexes added.120func (imap *IndexMap[K, V]) Remove(keys ...K) {121	for i := range keys {122		elem := imap.primaryIndex.get(keys[i])123		if elem == nil {124			continue125		}126		imap.primaryIndex.remove(keys[i])127		for _, index := range imap.indexes {128			index.remove(elem)129		}130	}131}132// Remove values into the map,133// also updates the indexes added.134func (imap *IndexMap[K, V]) RemoveBy(indexName string, keys ...any) {135	for i := range keys {136		values := imap.getAllBy(indexName, keys[i])137		if values == nil {138			continue139		}140		imap.removeValueSet(values)141	}142}143// Remove all values.144func (imap *IndexMap[K, V]) Clear() {145	for k := range imap.primaryIndex.inner {146		delete(imap.primaryIndex.inner, k)147	}148	for i := range imap.indexes {149		for k := range imap.indexes[i].inner {150			delete(imap.indexes[i].inner, k)151		}152	}153}154// Iterate all the elements,155// stop iteration if fn returns false,156// no any guarantee to the order.157func (imap *IndexMap[K, V]) Range(fn func(key K, value *V) bool) {158	for k, v := range imap.primaryIndex.inner {159		if !fn(k, v) {160			return161		}162	}163}164// Return all the keys and values.165func (imap *IndexMap[K, V]) Collect() ([]K, []*V) {166	var (167		keys   = make([]K, 0, imap.Len())168		values = make([]*V, 0, imap.Len())169	)170	for k, v := range imap.primaryIndex.inner {171		keys = append(keys, k)172		values = append(values, v)173	}174	return keys, values175}176// The number of elements.177func (imap *IndexMap[K, V]) Len() int {178	return len(imap.primaryIndex.inner)179}180func (imap *IndexMap[K, V]) getAllBy(indexName string, key any) container.Set[*V] {181	index, ok := imap.indexes[indexName]182	if !ok {183		return nil184	}185	return index.get(key)186}187// All values must exists188func (imap *IndexMap[K, V]) removeValues(values ...*V) {189	for i := range values {190		imap.Remove(imap.primaryIndex.extractField(values[i]))191	}192}193// All values must exists194func (imap *IndexMap[K, V]) removeValueSet(values container.Set[*V]) {195	for value := range values {196		imap.Remove(imap.primaryIndex.extractField(value))197	}198}...

EmailRetriever.go

Source:EmailRetriever.go

...82		done <- er.imapHandler.FetchEntireMessage(seqset, messages)83	}()84	return done85}86// extractEmailInfo extracts info from Message87func extractEmailInfo(msgObj *imap.Message) EmailInfo {88	section := &imap.BodySectionName{}89	bodyLiteral := msgObj.GetBody(section)90	if bodyLiteral == nil {91		log.Fatal("Server didn't returned message body")92	}93	reader, err := mail.CreateReader(bodyLiteral)94	if err != nil {95		log.Fatal(err)96	}97	var bodyHtml string98	var bodyTextPlain string99	for {100		p, err := reader.NextPart()101		if err == io.EOF {102			break103		} else if err != nil {104			log.Fatal(err)105		}106		switch h := p.Header.(type) {107		case *mail.InlineHeader:108			ct, _, _ := h.ContentType()109			bodyBytes, _ := ioutil.ReadAll(p.Body)110			if ct == "text/html" {111				bodyHtml = string(bodyBytes)112			} else if ct == "text/plain" {113				bodyTextPlain = string(bodyBytes)114			}115		}116	}117	date, _ := reader.Header.Date()118	from, _ := reader.Header.AddressList("From")119	subject, _ := reader.Header.Subject()120	return EmailInfo{121		Date:      date.String(),122		From:      from[0].Address,123		Subject:   subject,124		BodyHtml:  bodyHtml,125		BodyPlain: bodyTextPlain,126	}127}128// Execute return the list of emails, in the given mailbox, that corresponds to the search129func (retriever EmailRetriever) Execute() <-chan *EmailInfo {130	retriever.login()131	// Logout in the end132	defer retriever.logout()133	retriever.selectMailbox()134	if retriever.imapHandler.Mailbox.Messages == 0 {135		log.Println("No messages in the mailbox")136		return nil137	}138	searchIds := retriever.searchItemsId()139	if len(searchIds) == 0 {140		log.Println("No message corresponds to the search")141		return nil142	}143	messageObjectList := make(chan *imap.Message, 10)144	done := retriever.fetchByIds(searchIds, &messageObjectList)145	infoChannel := make(chan *EmailInfo, 10)146	for msgObj := range messageObjectList {147		info := extractEmailInfo(msgObj)148		infoChannel <- &info149	}150	if err := <-done; err != nil {151		log.Fatal(err)152	}153	return infoChannel154}...

fetcher_test.go

Source:fetcher_test.go

...11	}12	t.Parallel()13	t.Run("ExtractField", testExtractField)14}15// testExtractField is a unit test that covers the extractField helper16func testExtractField(t *testing.T) {17	env := &imap.Envelope{}18	address := &imap.Address{19		HostName:    "example.com",20		MailboxName: "john.doe",21	}22	// empty case23	for _, field := range []string{"unknown", "From", "To", "ReplyTo"} {24		if extractField(field, env) != "" {25			t.Fatal("unexpected field value")26		}27	}28	// from case29	env.From = []*imap.Address{address}30	if extractField("From", env) != address.Address() {31		t.Fatal("unexpected field value")32	}33	// to case34	env.To = []*imap.Address{address}35	if extractField("To", env) != address.Address() {36		t.Fatal("unexpected field value")37	}38	// reply-to case39	env.ReplyTo = []*imap.Address{address}40	if extractField("ReplyTo", env) != address.Address() {41		t.Fatal("unexpected field value")42	}43}...

extract

Using AI Code Generation

1import (2func main() {3	c, err := client.DialTLS("imap.gmail.com:993", nil)4	if err != nil {5		log.Fatal(err)6	}7	defer c.Logout()8	if err := c.Login("

extract

Using AI Code Generation

1import (2func main() {3	f, err := os.Open("1.txt")4	if err != nil {5		log.Fatal(err)6	}7	defer f.Close()8	scanner := bufio.NewScanner(f)9	for scanner.Scan() {10		str = scanner.Text()11		data = append(data, str)12	}13	if err := scanner.Err(); err != nil {14		if err != io.EOF {15			log.Fatal(err)16		}17	}18	imap(data)19}20func imap(data []string) {21	for i := 0; i < len(data); i++ {22		if strings.Contains(data[i], "imap") {23			str = strings.Split(data[i], " ")[0]24			imapdata = append(imapdata, str)25		}26	}27	fmt.Println(imapdata)28}

extract

Using AI Code Generation

1import (2func usage() {3	fmt.Fprintf(os.Stderr, "usage: %s [options] [mailbox]\n", os.Args[0])4	flag.PrintDefaults()5	os.Exit(2)6}7func main() {8	var (9		certFile = flag.String("cert", "", "Certificate file")10		keyFile  = flag.String("key", "", "Key file")11	flag.Parse()12	if flag.NArg() < 1 {13		usage()14	}15	mailbox := flag.Arg(0)16	c, err := client.DialTLS("imap.gmail.com:993", nil)17	if err != nil {18		log.Fatal(err)19	}20	log.Println("Connected")21	defer c.Logout()22	if err := c.Login("

extract

Using AI Code Generation

1import (2func main() {3	mail := imap.NewMail("user", "password")4	mail.Connect("imap.gmail.com:993")5	mail.Extract()6	mail.Close()7	fmt.Println("Mail extracted")8}9import (10type Mail struct {11}12func NewMail(user, password string) *Mail {13	return &Mail{User: user, Password: password}14}15func (m *Mail) Connect(server string) {16	c, err := client.DialTLS(server, nil)17	if err != nil {18		panic(err)19	}20	fmt.Println("Connected")21	defer c.Logout()22	if err := c.Login(m.User, m.Password); err != nil {23		panic(err)24	}25	fmt.Println("Logged in")26	mbox, err := c.Select("INBOX", false)27	if err != nil {28		panic(err)29	}30	fmt.Println("Flags for INBOX:", mbox.Flags)31	from := uint32(1)32	if mbox.Messages > 4 {33	}34	seqset := new(imap.SeqSet)35	seqset.AddRange(from, to)36	section := &imap.BodySectionName{}37	items := []imap.FetchItem{section.FetchItem()}38	messages := make(chan *imap.Message, 10)39	done := make(chan error, 1)40	go func() {41		done <- c.Fetch(seqset, items, messages)42	}()43	fmt.Println("Last 4 messages:")44	for msg := range messages {45		fmt.Println("Message UID:", msg.Uid)46		r := msg.GetBody(section)47		if r == nil {48			fmt.Println("Server didn't returned message body")49		}50		mr, err := mail.CreateReader(r)51		if err != nil {52			fmt.Println(err)53		}

extract

Using AI Code Generation

1import (2func main() {3    c, err := client.DialTLS("imap.gmail.com:993", nil)4    if err != nil {5        log.Fatal(err)6    }7    defer c.Logout()8    if err := c.Login("

extract

Using AI Code Generation

1import (2func main() {3	c, err := client.DialTLS("imap.gmail.com:993", nil)4	if err != nil {5		log.Fatal(err)6	}7	if err := c.Login("username", "password"); err != nil {8		log.Fatal(err)9	}10	mbox, err := c.Select("INBOX", false)11	if err != nil {12		log.Fatal(err)13	}14	seqset := new(imap.SeqSet)15	seqset.AddNum(mbox.Messages)16	section := &imap.BodySectionName{}17	items := []imap.FetchItem{section.FetchItem()}18	messages := make(chan *imap.Message, 1)19	go func() {20		if err := c.Fetch(seqset, items, messages); err != nil {21			log.Fatal(err)22		}23	}()24	r := msg.GetBody(section)25	if r == nil {26		log.Fatal("Server didn't returned message body")27	}28	mr, err := ioutil.ReadAll(r)29	if err != nil {30		log.Fatal(err)31	}32	file, err := os.Create("message.txt")33	if err != nil {34		log.Fatal(err)35	}36	defer file.Close()37	w := bufio.NewWriter(file)38	fmt.Fprint(w, string(mr))39	w.Flush()40	c.Logout()41}

extract

Using AI Code Generation

1import (2func main() {3	c, err := client.DialTLS("imap.gmail.com:993", nil)4	if err != nil {5		panic(err)6	}7	defer c.Logout()8	if err := c.Login("

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