Nginx之CORS（Cross-Origin Resource Sharing，跨來源資源共享）來實現防止盜連多媒體資源

IT_man · 發表於 2019-2-20 09:34:17

以下是gist.github.com支援reverse proxied APIs的範例:

# CORS header support
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# One way to use this is by placing it into a file called "cors_support"& j. y& S6 u9 r2 c( h7 Q( O0 G
# under your Nginx configuration directory and placing the following( E$ n6 u$ ?5 b' O/ X# O1 Y
# statement inside your **location** block(s):
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# include cors_support;
: i5 v2 \3 t% K" v#
8 g* X7 A" J9 n$ D9 G1 l1 P/ B7 L- g# As of Nginx 1.7.5, add_header supports an "always" parameter which$ r0 O8 }2 {* h8 T3 S
# allows CORS to work if the backend returns 4xx or 5xx status code.
* B0 ~1 N% z: v8 [* \+ r#
; o4 ]$ g8 f! b7 j8 h+ @3 x" Z" t0 s# For more information on CORS, please see: http://enable-cors.org/
. s3 p7 B7 k; G% U9 o# Forked from this Gist: https://gist.github.com/michiel/1064640, d. O0 ?' Q/ {/ y3 B  V* b
#6 J6 t6 Q- b; C* o5 q
& T# `' p5 k6 {1 m. E- L7 {
set $cors '';
/ d$ ^" |; [1 o, s( b4 Kif ($http_origin ~ '^https?://(localhost|www\.yourdomain\.com|www\.yourotherdomain\.com)$') {8 h# g0 C, v: O+ M- U/ A" r! B" i+ k9 @
      set $cors 'true';( \$ ?7 N( T1 d0 t- F6 w
}
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2 |3 B% A/ l! O, P, n- p/ n- F# \if ($cors = 'true') {# }0 \% e& B' n$ b0 t, ?( _8 x1 [
      add_header 'Access-Control-Allow-Origin' "$http_origin" always;1 t, G5 A- q, [9 U) X! v
      add_header 'Access-Control-Allow-Credentials' 'true' always;( J. h8 z7 D6 r, N7 Q7 g; T. Q
      add_header 'Access-Control-Allow-Methods' 'GET, POST, PUT, DELETE, OPTIONS' always;
0 H, K/ z' j& j       add_header 'Access-Control-Allow-Headers' 'Accept,Authorization,Cache-Control,Content-Type,DNT,If-Modified-Since,Keep-Alive,Origin,User-Agent,X-Requested-With' always;, M4 W" {8 u4 l) l, r
      # required to be able to read Authorization header in frontend( Y! `. l, I# A
      #add_header 'Access-Control-Expose-Headers' 'Authorization' always;% r, d% r$ i* b
}
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$ y1 D" U) q) |% Mif ($request_method = 'OPTIONS') {$ ~5 G; a6 u/ M0 ^
      # Tell client that this pre-flight info is valid for 20 days) b4 C: m7 I8 j, O
      add_header 'Access-Control-Max-Age' 1728000;5 ^4 S9 Z' O* G1 O0 R0 L/ E, F) e
      add_header 'Content-Type' 'text/plain charset=UTF-8';3 `7 J6 w; f7 C3 d' v  E
      add_header 'Content-Length' 0;1 O# {0 [/ ^$ O! K" ^
      return 204;
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https://gist.github.com/Stanback/7145487#file-nginx-conf 的討論範例:

if ( $request_method !~ ^(GET|POST|HEAD|OPTIONS|PUT|PATCH|DELETE)$ ) {    return 444;
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set $origin $http_origin;2 C& l3 a; A4 V- _, w& O$ L' d
if ($origin !~ '^https?://(subdom1|subdom2)\.yourdom\.zone$') {1 N$ H" Z% y5 r) D' C' ?
   set $origin 'https://default.yourdom.zone';
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if ($request_method = 'OPTIONS') {/ r0 Y. P1 c7 b, {7 h  I
   add_header 'Access-Control-Allow-Origin' "$origin" always;' x) `& c* _% l. F+ q) E5 s0 Z/ @
   add_header 'Access-Control-Allow-Methods' 'GET, POST, PATCH, PUT, DELETE, OPTIONS' always;
: \* |; F$ R! P6 o) d* _! b    add_header 'Access-Control-Allow-Headers' 'Content-Type, Accept, Authorization' always;% Y2 D, Z' X6 f! W- c
   add_header 'Access-Control-Allow-Credentials' 'true' always;
6 g$ P$ ?% T% p" X    add_header Access-Control-Max-Age 1728000; #20 days + L# i! I! K1 \  F( u; J
   add_header Content-Type 'text/plain charset=UTF-8';' {4 Y! I# ?* U
   add_header Content-Length 0;4 g: j$ I5 n  Y  ~0 u$ e" _
   return 204;! P. `, {+ k! O4 z! y7 T! F
}
8 s" M& U5 h% G  v: t- _7 oif ($request_method ~ '(GET|POST|PATCH|PUT|DELETE)') {
, O7 ]$ C/ a2 |7 R6 g8 w    add_header Access-Control-Allow-Origin "$origin" always;
. h: C5 D0 J& ]' q4 a* v    add_header Access-Control-Allow-Methods 'GET, POST, PATCH, PUT, DELETE, OPTIONS' always;
, B' j) h5 Z: N( ~* k" K  i# b' I    add_header Access-Control-Allow-Headers 'Content-Type, Accept, Authorization' always;
4 V5 f2 p, L7 N8 P5 u. I    add_header Access-Control-Allow-Credentials true always;
4 W. b2 Y; J7 b  b" j' b}

Access-Control-Allow-Origin Multiple Origin Domains? 的例子:

# based on https://gist.github.com/4165271/
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# Slightly tighter CORS config for nginx# F9 o& x5 I  V" M- `6 h  ~
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# A modification of https://gist.github.com/1064640/ to include a white-list of URLs
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# Despite the W3C guidance suggesting that a list of origins can be passed as part of+ N5 I. a" c5 K$ S( d; Q
# Access-Control-Allow-Origin headers, several browsers (well, at least Firefox)3 ~, m6 H) ]* Y# S9 }
# don't seem to play nicely with this.+ I- V0 a; b& {5 k, x
#
5 Z1 [" X4 c: [4 i0 w# To avoid the use of 'Access-Control-Allow-Origin: *', use a simple-ish whitelisting. z( E9 V) C: C& w* K' q
# method to control access instead.
% c1 A% d+ z0 O+ I: l#
" f7 P6 E4 D  v0 o2 r6 R# NB: This relies on the use of the 'Origin' HTTP Header.# b/ }- c% I8 X0 a; s

" p- H5 N6 z3 Qlocation / {
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3 G1 H; H, H" F, a if ($http_origin ~* (^https?://([^/]+\.)*(domainone|domaintwo)\.com$)) {
9 c* V: v) b9 h       set $cors "true";6 E; g' W6 t7 s* K$ S
}
' ?9 W3 _5 }5 I5 B! H+ P& F
8 b  X, O( _$ Q( Y+ W # Nginx doesn't support nested If statements. This is where things get slightly nasty.
  y% Q8 K* S+ V; b8 m# K # Determine the HTTP request method used
1 P$ q& k5 u$ W+ ?( ~4 ]  r if ($request_method = 'OPTIONS') {
4 s$ U2 x. m: v* L: m- y5 c       set $cors "${cors}options";
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if ($request_method = 'GET') {. [6 Y9 w/ k6 r. C: ^4 _: W" E4 {
      set $cors "${cors}get";- O! O5 a+ s1 g! r9 d# l
}
  ]% d% x0 f# X8 P8 E* ~9 Y0 ^ if ($request_method = 'POST') {5 n. J- [$ ^; p9 c. \0 h* s, Z
      set $cors "${cors}post";' v3 V5 g& t- ~
}
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if ($cors = "true") {2 O; _* [! N, V. R; P9 G1 \) G; E
      # Catch all incase there's a request method we're not dealing with properly
% g; q( T- Z' b. b: Z( _       add_header 'Access-Control-Allow-Origin' "$http_origin";
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& R5 q. y' ~, _. I$ F- Z4 h if ($cors = "trueget") {
2 }  y  @: t+ X2 ^4 M3 U       add_header 'Access-Control-Allow-Origin' "$http_origin";9 i0 H) a! r9 p: g9 m8 X* Y
      add_header 'Access-Control-Allow-Credentials' 'true';2 q2 }3 D: T' B7 q8 H: }
      add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
9 Z& B* S, n( Q5 p* {+ T2 m       add_header 'Access-Control-Allow-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';
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' f, c7 l8 K; P! `5 K/ l if ($cors = "trueoptions") {# M- \1 s  \& s2 I* I
      add_header 'Access-Control-Allow-Origin' "$http_origin";- v' C3 ~' K# u; m$ L) ]
) N! o  y) V9 U- a2 c/ e* s
      #& W, |- H0 g4 q3 Y( \, \/ o
      # Om nom nom cookies
+ V$ x1 r/ O. x9 U4 ]       ## Y  B1 f$ u( d
      add_header 'Access-Control-Allow-Credentials' 'true';: G- O8 C! B2 a1 n% h9 |# A, f
      add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
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( P- O% ^, H3 v+ P       #
2 k2 o# E3 _* t( e9 D       # Custom headers and headers various browsers *should* be OK with but aren't8 F0 C5 W3 Z$ Z7 n, i
      #& Y! x0 u) x$ Y  J' D
      add_header 'Access-Control-Allow-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';0 X+ L+ `. M. }1 y# h0 l) Q

4 i6 O' O. F/ @  ~       #& z# h3 [# ~2 A9 V/ |
      # Tell client that this pre-flight info is valid for 20 days1 P: e. f( I! b$ Q
      #
7 F$ l# x: B& N  Q+ |+ L       add_header 'Access-Control-Max-Age' 1728000;4 o# a9 y  t# u: T6 ]- X5 W
      add_header 'Content-Type' 'text/plain charset=UTF-8';* U4 m/ t7 K  O  N' g, R# ?) p
      add_header 'Content-Length' 0;* \' j& k& p3 h
      return 204;
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2 h) A. ^6 f" {8 L' }$ o: \ if ($cors = "truepost") {$ X, d3 j! f% a" r- H$ ]
      add_header 'Access-Control-Allow-Origin' "$http_origin";" V" b. D4 }+ D0 T
      add_header 'Access-Control-Allow-Credentials' 'true';
0 |7 G0 [, V* m8 Q; g       add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
' Z0 y0 Y- ]1 B$ y  E       add_header 'Access-Control-Allow-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';
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}

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[nginx|php-fpm] Nginx之CORS（Cross-Origin Resource Sharing，跨來源資源共享）來實現防止盜連多媒體資源