Foundations of Python Network Programming 978-1-4302-3004-5

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■ INDEX international characters and, 205, 210, 215, 260 mailbox information, 238 maximum size, 228 message numbers, 238, 243, 248 Message, using, 198, 200–205, 240, 252 MIME, 205–16 multiple part, 206, 208, 211 multiple versions, 208 nesting multiparts, 211 overview of protocols, 197 parsing, 202–5, 213–15 POP, 235–41 routing, 223 searching, 259 SMTP, 217–34 spam and, 219, 221 SSL/TLS, 230–32 structure, 198 synchronization, 235, 244 traditional, 200–205 UIDs, 248, 259 webmail, 220 email module (Message), 198, 200–205, 240, 252 embedding Python, 180, 182, 194 encoding base-64, 205, 207 chunked, 148 MIME, 205–16 quoted-printable, 205 special characters, 210 text, 71–75, 71–75 URLs, 139 encryption cookies, 158, 160 e-mail, 221, 230–32 FTP, 303 HTTPS, 156, 160 opportunistic, 230 SSH, 278–89 symmetric-key, 93 TLS, 92, 94–98, 230–32, 303 engine X, 182 envelope recipient, 222, 227 envelope sender, 223, 227 EOFError, 101 epoll(), 113 error_proto, 236 errors “address already in use”, 42 authentication, 233 FTP, 299 gaierror, 61, 82 handling, 83 hidden layers and, 8 host keys, 281 hostnames, 82 HTTP codes, 144 HTTP redirection, 144–47 network exceptions, 82, 83, 320 RPC systems, 306, 311, 320 SMTP, 225–28, 233 socket, 82 specific name service, 61 Telnet, 275, 276 TLS, 230 WSGI applications and, 186 escape characters, 265, 270 ESMTP, 228 Etag: header, 155 event-driven servers, 109–17 evercookie, 159 except(), 275 exception handlers, 84, 320 exceptions. See also errors FTP, 299 host keys, 281 HTTP, 145 POP, 236 RPC systems, 306, 311, 320 SMTP, 225–28 Telnet, 275, 276 WSGI applications and, 186 exec_command(), 284 exim, 218, 221 EXISTS flag, 249 expect(), 277 expire times, 158 328
■ INDEX Expires: header, 155 exponential backoff, 24–25, 320 exposed_ prefix, 318 expression evaluation, 190 Extensible Markup Language. See XML external interfaces, binding to, 28–29 ■ F fab, 264 Fabric library, 264 FastCGI, 179, 180, 183 fetch(), 250, 257 fetching e-mail with IMAP, 250, 257 web pages, 163–67. See also screen scraping Fielding, Roy, 151 file descriptor numbers, sockets, 49 file descriptors vs. sockets, 19 file information and FTP, 299 file management and FTP, 291 file names and command-line, 269, 285, 287 File Not Found response code, 137, 145, 186 file objects from TCP streams, 49 file size estimates, 295 file transfer. See FTP (File Transport Protocol); SFTP (SSH File Transport Protocol) file(), 287 fileConfig(), 100 filenames, FTP and, 301, 302 fileno(), 49 filesystem access, 291 filtering addresses with getaddrinfo(), 56 host mechanisms, 89 logs, 100 FIN, 36 FIN-ACK, 36 findAll(), 173 Firefox with Firebug, 171, 181 Firesheep, 160 firewalls FTP and, 293 limiting host access with, 89 MTU and, 30 fixed-length messages, 76 \Flagged flag, 257, 259 FLAGGED search criteria, 259 flagging e-mail folders, 247 IMAP, 243, 244, 247, 249, 251, 257 POP, 235, 237, 239 removing flags, 258 FLAGS flag, 249 Flask, 189 flow control, 36, 44-47 flow coordinates in socket names, 54 flow-based programming, 134 flup servers, 180, 183 flush(), 273, 297 fnmatch, 287 folders, IMAP e-mail, 243, 247, 249, 260 Foord, Michael, 138 foreign-key relationships, 187 forking, 117, 121. See also threading ForkingMixIn, 121 form submission, downloading pages with, 164–67 formatdate(), 201 forms. See web forms forward lookup confirmation, 61–63 FQDN (fully qualified domain names), 51 fragmentation DF flag, 13 encoding and, 73 framing, 75–82, 75–82 need for, 13 TCP, 35, 39 UDP, 30 frameworks event-driven servers, 114–16 multi-processing, 120 RPC systems and, 319 threading, 120 web server, 179, 187–92 framing, 75–82 freezing. See deadlock From: header, 199, 211, 259 fromfd(), 124 329
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Foundations of Python Network Progr
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To the Python community for creatin
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Contents ■Contents at a Glance ..
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■ CONTENTS Asking getaddrinfo() W
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■ CONTENTS Using Message Queues f
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■ CONTENTS Parsing Dates ........
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■ CONTENTS Telnet ...............
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About the Authors ■ Brandon Craig
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Acknowledgements This book owes its
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■ INTRODUCTION If you do know som
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C H A P T E R 1 ■ ■ ■ Introdu
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CHAPTER 1 ■ INTRODUCTION TO CLIEN
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C H A P T E R 2 ■ ■ ■ UDP The
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CHAPTER 2 ■ UDP server with SSH.
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CHAPTER 2 ■ UDP them anywhere in
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CHAPTER 2 ■ UDP command-line argu
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CHAPTER 2 ■ UDP » » » » raise
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CHAPTER 2 ■ UDP world itself give
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CHAPTER 2 ■ UDP socket that is no
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CHAPTER 2 ■ UDP So binding to an
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CHAPTER 2 ■ UDP s.connect((hostna
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CHAPTER 2 ■ UDP else: » print >>
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C H A P T E R 3 ■ ■ ■ TCP The
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CHAPTER 3 ■ TCP situation), and t
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CHAPTER 3 ■ TCP » reply = recv_a
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CHAPTER 3 ■ TCP guess when the in
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CHAPTER 3 ■ TCP the system has no
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CHAPTER 3 ■ TCP » » » print '\
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CHAPTER 3 ■ TCP $ python tcp_dead
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CHAPTER 3 ■ TCP Using TCP Streams
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CHAPTER 4 ■ SOCKET NAMES AND DNS
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CHAPTER 5 ■ NETWORK DATA AND NETW
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C H A P T E R 6 ■ ■ ■ TLS and
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CHAPTER 6 ■ TLS AND SSL systems a
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CHAPTER 6 ■ TLS AND SSL • He wi
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CHAPTER 6 ■ TLS AND SSL discussio
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CHAPTER 6 ■ TLS AND SSL • The s
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CHAPTER 6 ■ TLS AND SSL The Links
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C H A P T E R 7 ■ ■ ■ Server
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CHAPTER 7 ■ SERVER ARCHITECTURE P
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CHAPTER 7 ■ SERVER ARCHITECTURE
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CHAPTER 7 ■ SERVER ARCHITECTURE N
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CHAPTER 7 ■ SERVER ARCHITECTURE L
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CHAPTER 7 ■ SERVER ARCHITECTURE F
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CHAPTER 7 ■ SERVER ARCHITECTURE p
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CHAPTER 7 ■ SERVER ARCHITECTURE N
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CHAPTER 7 ■ SERVER ARCHITECTURE L
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CHAPTER 7 ■ SERVER ARCHITECTURE s
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CHAPTER 7 ■ SERVER ARCHITECTURE c
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C H A P T E R 8 ■ ■ ■ Caches,
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CHAPTER 8 ■ CACHES, MESSAGE QUEUE
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C H A P T E R 9 ■ ■ ■ HTTP Th
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CHAPTER 9 ■ HTTP Here, the URL sp
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CHAPTER 9 ■ HTTP Relative URLs Ve
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CHAPTER 9 ■ HTTP From now on, I a
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CHAPTER 9 ■ HTTP • 303 See Othe
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CHAPTER 9 ■ HTTP You cannot tell
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CHAPTER 9 ■ HTTP Instead of stuff
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CHAPTER 9 ■ HTTP POST And APIs Al
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CHAPTER 9 ■ HTTP Content Type Neg
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CHAPTER 9 ■ HTTP HTTP Caching Man
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CHAPTER 9 ■ HTTP If the connectio
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CHAPTER 9 ■ HTTP >>> import cooki
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CHAPTER 9 ■ HTTP So the technique
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C H A P T E R 10 ■ ■ ■ Screen
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CHAPTER 10 ■ SCREEN SCRAPING Figu
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CHAPTER 10 ■ SCREEN SCRAPING cont
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CHAPTER 10 ■ SCREEN SCRAPING Thir
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CHAPTER 10 ■ SCREEN SCRAPING Ther
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CHAPTER 10 ■ SCREEN SCRAPING Beau
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CHAPTER 10 ■ SCREEN SCRAPING If y
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CHAPTER 10 ■ SCREEN SCRAPING Cond
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C H A P T E R 11 ■ ■ ■ Web Ap
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CHAPTER 11 ■ WEB APPLICATIONS Thi
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CHAPTER 11 ■ WEB APPLICATIONS But
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CHAPTER 11 ■ WEB APPLICATIONS the
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CHAPTER 11 ■ WEB APPLICATIONS •
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CHAPTER 11 ■ WEB APPLICATIONS hig
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CHAPTER 11 ■ WEB APPLICATIONS The
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CHAPTER 11 ■ WEB APPLICATIONS the
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CHAPTER 11 ■ WEB APPLICATIONS The
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C H A P T E R 12 ■ ■ ■ E-mail
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CHAPTER 12 ■ E-MAIL COMPOSITION A
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C H A P T E R 13 ■ ■ ■ SMTP A
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CHAPTER 13 ■ SMTP anyway. Outgoin
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CHAPTER 13 ■ SMTP How SMTP Is Use
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CHAPTER 13 ■ SMTP This mechanism
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CHAPTER 13 ■ SMTP s = smtplib.SMT
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CHAPTER 13 ■ SMTP ETRN STARTTLS X
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CHAPTER 13 ■ SMTP » s = smtplib.
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CHAPTER 13 ■ SMTP exchange mail o
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CHAPTER 13 ■ SMTP username = sys.
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C H A P T E R 14 ■ ■ ■ POP PO
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CHAPTER 14 ■ POP ■ Caution! Whi
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CHAPTER 14 ■ POP finally: » p.qu
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CHAPTER 14 ■ POP Subject: Backup
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CHAPTER 15 ■ IMAP THE IMAP PROTOC
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CHAPTER 15 ■ IMAP '(\\HasNoChildr
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CHAPTER 15 ■ IMAP Examining Folde
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CHAPTER 15 ■ IMAP Listing 15-5. D
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CHAPTER 15 ■ IMAP key that IMAP h
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CHAPTER 15 ■ IMAP » » print def
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CHAPTER 15 ■ IMAP » From: Brando
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CHAPTER 15 ■ IMAP • \Flagged: T
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CHAPTER 15 ■ IMAP An IMAP message
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CHAPTER 15 ■ IMAP display or summ
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CHAPTER 16 ■ TELNET AND SSH cloud
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CHAPTER 16 ■ TELNET AND SSH Unix
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CHAPTER 16 ■ TELNET AND SSH Do yo
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CHAPTER 16 ■ TELNET AND SSH As we
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CHAPTER 16 ■ TELNET AND SSH tabif
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CHAPTER 16 ■ TELNET AND SSH repla
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Page 310 and 311: CHAPTER 17 ■ FTP The biggest prob
Page 312 and 313: CHAPTER 17 ■ FTP f.login() print
Page 314 and 315: CHAPTER 17 ■ FTP if os.path.exist
Page 316 and 317: CHAPTER 17 ■ FTP f = FTP(host) f.
Page 318 and 319: CHAPTER 17 ■ FTP Windows servers
Page 320 and 321: CHAPTER 17 ■ FTP » try: » » f.
Page 322 and 323: C H A P T E R 18 ■ ■ ■ RPC Re
Page 324 and 325: CHAPTER 18 ■ RPC sort of proxy ex
Page 326 and 327: CHAPTER 18 ■ RPC The SimpleXMLRPC
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Page 336 and 337: CHAPTER 18 ■ RPC such as Python i
Page 338 and 339: CHAPTER 18 ■ RPC • Google Proto
Page 340 and 341: ■ INDEX mod_python, 194 Qpid, 131
Page 342 and 343: ■ INDEX Common Gateway Interface.
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Page 348 and 349: ■ INDEX deleting folders, 260 del
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Page 360 and 361: ■ INDEX ■ V validating cached r
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