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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

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發表於 2019-2-20 09:34:17 | 只看該作者 回帖獎勵 |倒序瀏覽 |閱讀模式

以下是gist.github.com支援reverse proxied APIs的範例:
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# CORS header support
- T3 G" y8 n4 A: e; T9 U. c#5 l0 M. G( D7 z, I* x6 k
# One way to use this is by placing it into a file called "cors_support"
: ^5 B& }, h- M# [# under your Nginx configuration directory and placing the following
4 E/ e$ X) k1 {3 y% o8 v# statement inside your **location** block(s):' {! r$ h! o) S7 o) ?% A
#. z9 m0 `7 l2 A  E% R6 T8 w8 q
#   include cors_support;
. K7 e0 P+ p: a2 _. \#
: Y* s% q- D) w( S" ^( N# As of Nginx 1.7.5, add_header supports an "always" parameter which: j9 P+ R9 r3 _1 o$ X
# allows CORS to work if the backend returns 4xx or 5xx status code.( {3 {1 D# u7 |
#: n# m1 ^& K% `. `4 L% Q
# For more information on CORS, please see: http://enable-cors.org/) B/ \5 ]) v$ l) Z# |
# Forked from this Gist: https://gist.github.com/michiel/1064640
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# \1 j/ }3 ^. A/ I7 W
set $cors '';
, O. P. G4 m8 h! C4 Lif ($http_origin ~ '^https?://(localhost|www\.yourdomain\.com|www\.yourotherdomain\.com)$') {% |+ n7 N- ]+ S) y, Z: b; u
        set $cors 'true';6 {  E( {" h- S9 Q+ N
}
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if ($cors = 'true') {( L  e' U% _4 [% A8 t$ w
        add_header 'Access-Control-Allow-Origin' "$http_origin" always;5 c. E& C' F. |3 {1 u
        add_header 'Access-Control-Allow-Credentials' 'true' always;7 o  u! q2 r5 r# u: m
        add_header 'Access-Control-Allow-Methods' 'GET, POST, PUT, DELETE, OPTIONS' always;7 [8 I( @. d1 Y4 Z) y4 L1 o  ?
        add_header 'Access-Control-Allow-Headers' 'Accept,Authorization,Cache-Control,Content-Type,DNT,If-Modified-Since,Keep-Alive,Origin,User-Agent,X-Requested-With' always;
' S+ n6 V0 Y) [5 _        # required to be able to read Authorization header in frontend" v7 d$ U6 l, `, Q0 q9 L' B! p, W
        #add_header 'Access-Control-Expose-Headers' 'Authorization' always;( t5 T9 i4 i  k" ]8 A
}) Q' {% ]: m) X

4 d& {8 b! b3 \; B! l8 t5 ?" P8 mif ($request_method = 'OPTIONS') {
7 O# ?8 b2 D# c5 \        # Tell client that this pre-flight info is valid for 20 days
# J2 I+ X( t% o0 _- i        add_header 'Access-Control-Max-Age' 1728000;
& Y+ w. r* @" t+ S        add_header 'Content-Type' 'text/plain charset=UTF-8';
9 g3 m4 \) |% v& k' h# a2 ?* ]        add_header 'Content-Length' 0;, P, I) @+ l4 k  r- ]5 x. f
        return 204;$ H0 o; K( R9 g: j: [( T
}
https://gist.github.com/Stanback/7145487#file-nginx-conf 的討論範例:

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if ( $request_method !~ ^(GET|POST|HEAD|OPTIONS|PUT|PATCH|DELETE)$ ) {     return 444;
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set $origin $http_origin;. D: j  h3 ]4 d+ c
if ($origin !~ '^https?://(subdom1|subdom2)\.yourdom\.zone$') {' ], r0 N  a; f, `# n) y: g
     set $origin 'https://default.yourdom.zone';
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5 h" q  g3 A  _" D% v/ [8 vif ($request_method = 'OPTIONS') {& G6 m! @9 y0 O" W! o
     add_header 'Access-Control-Allow-Origin' "$origin" always;
2 X# S. e* e9 @6 i" N% ^     add_header 'Access-Control-Allow-Methods' 'GET, POST, PATCH, PUT, DELETE, OPTIONS' always;  j3 _5 b5 u; z& `3 T/ e7 Z5 f
     add_header 'Access-Control-Allow-Headers' 'Content-Type, Accept, Authorization' always;! b9 w* Y, D0 p2 j3 J% y
     add_header 'Access-Control-Allow-Credentials' 'true' always;6 B$ \& @- x$ t, B+ a. V  z
     add_header Access-Control-Max-Age 1728000;   #20 days   
8 u: S. w$ f0 F4 Q9 f     add_header Content-Type 'text/plain charset=UTF-8';
$ m# Q+ z, D; I3 N  s! V7 h9 F7 W% |     add_header Content-Length 0;/ d5 d/ D+ H8 l" D/ T
     return 204;& q6 ?5 x- o$ }4 v
}
3 f+ s' N& o* o2 j1 Hif ($request_method ~ '(GET|POST|PATCH|PUT|DELETE)') {
9 z& b9 H+ \5 z4 m+ C& S9 R5 @     add_header Access-Control-Allow-Origin "$origin" always;
' s2 g0 Q* v1 @% r! s     add_header Access-Control-Allow-Methods 'GET, POST, PATCH, PUT, DELETE, OPTIONS' always;
8 L2 I# a8 R9 k- ^/ W& b0 J7 V     add_header Access-Control-Allow-Headers 'Content-Type, Accept, Authorization' always;
4 i( ~( @" P7 K/ @& ~7 Q# O) {     add_header Access-Control-Allow-Credentials true always;
- @) g7 A: t- G5 n9 h}
Access-Control-Allow-Origin Multiple Origin Domains? 的例子:
# based on https://gist.github.com/4165271/; ^9 b# N" u. y' B% J
#5 H1 _+ P1 r0 Y* u. a" G9 X4 _# @1 b
# Slightly tighter CORS config for nginx
* v. Q$ g  g) A2 U* ~3 Q, a( @#
/ `  K; H7 U$ A1 |% O# A modification of https://gist.github.com/1064640/ to include a white-list of URLs
; T% `# v# d0 |$ W#
4 A' {( u+ C; E+ f% q) r1 h4 C# Despite the W3C guidance suggesting that a list of origins can be passed as part of) H- t$ Y0 K% e
# Access-Control-Allow-Origin headers, several browsers (well, at least Firefox): {2 ~6 O' s2 o" p3 C
# don't seem to play nicely with this.' J3 |' |) y* I) E
#
# ^0 H" x% l8 h$ Z# R% b( K# To avoid the use of 'Access-Control-Allow-Origin: *', use a simple-ish whitelisting0 U6 i( _: {  i. k& Z0 P3 r$ L
# method to control access instead.6 _6 P- K' x1 l
#7 Y  o9 H7 }' B
# NB: This relies on the use of the 'Origin' HTTP Header.
# n+ t4 ?: U% H( P9 B( [% K3 C2 a5 P/ {: b6 }* e/ _
location / {( M5 W6 T4 o; u

5 F% x# T& D& T" O1 |8 {    if ($http_origin ~* (^https?://([^/]+\.)*(domainone|domaintwo)\.com$)) {# U& d( j: Q# a
        set $cors "true";/ y3 U: A5 P- s! e5 j& Y! b- y
    }
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1 k9 K! X5 t9 f+ r& B    # Nginx doesn't support nested If statements. This is where things get slightly nasty.
  w+ e* K$ f$ K7 ^% w    # Determine the HTTP request method used
" Z3 V, U) \2 y! ^3 F    if ($request_method = 'OPTIONS') {
! Q! P7 }1 p) x        set $cors "${cors}options";
' Q3 }/ ~1 C: Z- {! I4 X    }# n4 a# [3 y3 t# P) I8 z( j
    if ($request_method = 'GET') {. p. {0 p5 L2 g7 A" i( p
        set $cors "${cors}get";* f5 e/ V( P$ O* h
    }
( u3 R0 {) |/ O3 P1 C    if ($request_method = 'POST') {5 @5 J1 }# R0 }
        set $cors "${cors}post";
) ]; h5 P& ~" o/ r& u( t    }; v+ s5 @0 x+ W  s
% ?9 ~4 O* m7 j' x$ S* h( i
    if ($cors = "true") {: d2 ?! U" e! T( b) y7 O4 @0 g3 o. T
        # Catch all incase there's a request method we're not dealing with properly9 |" h  `8 G3 d$ X: m9 k1 ?
        add_header 'Access-Control-Allow-Origin' "$http_origin";7 R0 h8 N; }+ f- m  C
    }" ?/ T7 D+ A6 h7 B

- q8 f" m5 G% b1 _- F! H    if ($cors = "trueget") {
9 u+ M" B& Q7 f9 z, B$ L8 a& f/ o8 B        add_header 'Access-Control-Allow-Origin' "$http_origin";
8 `; B8 v1 p$ T  d/ Z6 m3 e        add_header 'Access-Control-Allow-Credentials' 'true';/ L" _8 f3 J3 m& \( S3 s
        add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';, M- E' d, k: `
        add_header 'Access-Control-Allow-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';& T0 Y& n% K) o1 m
    }. L" B: F2 e3 u- ?

$ w4 w' e; J& k    if ($cors = "trueoptions") {
9 I( b6 b! U' P4 b% \* x5 S        add_header 'Access-Control-Allow-Origin' "$http_origin";& Y" B; ?; w, M) |& i( u

5 @1 q: r! v7 f# j5 _        #3 P' d4 t1 |. O
        # Om nom nom cookies9 A/ }# n8 l, r1 s) f7 W* q
        #
+ R$ g$ {- V) e4 V0 H( l. N        add_header 'Access-Control-Allow-Credentials' 'true';: s3 }; ]  |( b& W
        add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';- |; _4 U- ?; ?1 x8 D$ p
% ]/ V2 B2 E+ s- p1 B
        #
0 H. T+ r) Y$ t) }) x( |, P  G        # Custom headers and headers various browsers *should* be OK with but aren't
! w8 `5 }. a3 d6 O        #- q" Y' G" D9 {5 O
        add_header 'Access-Control-Allow-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';7 H) B3 G0 l5 H  ]$ p. S
& X6 _& P7 m* ~  x
        #
2 N" O! U  l3 N7 }% d        # Tell client that this pre-flight info is valid for 20 days; C  Q- ]4 R" A) j! X4 R6 h
        #
. D7 F* i5 ~9 {) K, C6 `; A        add_header 'Access-Control-Max-Age' 1728000;+ x! F! ^7 a- X/ ]
        add_header 'Content-Type' 'text/plain charset=UTF-8';/ H: |6 p: a' j! a+ c! Z% H8 H
        add_header 'Content-Length' 0;
1 [  ~4 i4 j: m; E  O/ Y        return 204;
  s$ z( N# Q! Z2 O7 f- j5 r9 n    }. Y# J5 K* `7 F: B

- S/ P/ n) a# W& g# L/ {7 [* M    if ($cors = "truepost") {2 }6 L) [" S1 B, _0 a0 `2 e
        add_header 'Access-Control-Allow-Origin' "$http_origin";
. [& ?3 z9 R* q2 a7 r- }8 f7 g        add_header 'Access-Control-Allow-Credentials' 'true';* |. \5 V: F3 E! F8 d+ S: }- q
        add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
, G* i' f1 f7 D        add_header 'Access-Control-Allow-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';' `( [1 F7 M  H' x. M" N) V' q
    }7 Z# ?* e* m( c3 t
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}

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