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1 /*
2  * nghttp2 - HTTP/2 C Library
3  *
4  * Copyright (c) 2013 Tatsuhiro Tsujikawa
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining
7  * a copy of this software and associated documentation files (the
8  * "Software"), to deal in the Software without restriction, including
9  * without limitation the rights to use, copy, modify, merge, publish,
10  * distribute, sublicense, and/or sell copies of the Software, and to
11  * permit persons to whom the Software is furnished to do so, subject to
12  * the following conditions:
13  *
14  * The above copyright notice and this permission notice shall be
15  * included in all copies or substantial portions of the Software.
16  *
17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
20  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
21  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24  */
25 #include "shrpx_downstream_test.h"
26 
27 #include <iostream>
28 
29 #include <CUnit/CUnit.h>
30 
31 #include "shrpx_downstream.h"
32 
33 namespace shrpx {
34 
test_downstream_field_store_append_last_header(void)35 void test_downstream_field_store_append_last_header(void) {
36   BlockAllocator balloc(16, 16);
37   FieldStore fs(balloc, 0);
38   fs.alloc_add_header_name(StringRef::from_lit("alpha"));
39   auto bravo = StringRef::from_lit("BRAVO");
40   fs.append_last_header_key(bravo.c_str(), bravo.size());
41   // Add more characters so that relloc occurs
42   auto golf = StringRef::from_lit("golF0123456789");
43   fs.append_last_header_key(golf.c_str(), golf.size());
44 
45   auto charlie = StringRef::from_lit("Charlie");
46   fs.append_last_header_value(charlie.c_str(), charlie.size());
47   auto delta = StringRef::from_lit("deltA");
48   fs.append_last_header_value(delta.c_str(), delta.size());
49   // Add more characters so that relloc occurs
50   auto echo = StringRef::from_lit("echo0123456789");
51   fs.append_last_header_value(echo.c_str(), echo.size());
52 
53   fs.add_header_token(StringRef::from_lit("echo"),
54                       StringRef::from_lit("foxtrot"), false, -1);
55 
56   auto ans =
57       HeaderRefs{{StringRef::from_lit("alphabravogolf0123456789"),
58                   StringRef::from_lit("CharliedeltAecho0123456789")},
59                  {StringRef::from_lit("echo"), StringRef::from_lit("foxtrot")}};
60   CU_ASSERT(ans == fs.headers());
61 }
62 
test_downstream_field_store_header(void)63 void test_downstream_field_store_header(void) {
64   BlockAllocator balloc(16, 16);
65   FieldStore fs(balloc, 0);
66   fs.add_header_token(StringRef::from_lit("alpha"), StringRef::from_lit("0"),
67                       false, -1);
68   fs.add_header_token(StringRef::from_lit(":authority"),
69                       StringRef::from_lit("1"), false, http2::HD__AUTHORITY);
70   fs.add_header_token(StringRef::from_lit("content-length"),
71                       StringRef::from_lit("2"), false,
72                       http2::HD_CONTENT_LENGTH);
73 
74   // By token
75   CU_ASSERT(HeaderRef(StringRef{":authority"}, StringRef{"1"}) ==
76             *fs.header(http2::HD__AUTHORITY));
77   CU_ASSERT(nullptr == fs.header(http2::HD__METHOD));
78 
79   // By name
80   CU_ASSERT(HeaderRef(StringRef{"alpha"}, StringRef{"0"}) ==
81             *fs.header(StringRef::from_lit("alpha")));
82   CU_ASSERT(nullptr == fs.header(StringRef::from_lit("bravo")));
83 }
84 
test_downstream_crumble_request_cookie(void)85 void test_downstream_crumble_request_cookie(void) {
86   Downstream d(nullptr, nullptr, 0);
87   auto &req = d.request();
88   req.fs.add_header_token(StringRef::from_lit(":method"),
89                           StringRef::from_lit("get"), false, -1);
90   req.fs.add_header_token(StringRef::from_lit(":path"),
91                           StringRef::from_lit("/"), false, -1);
92   req.fs.add_header_token(StringRef::from_lit("cookie"),
93                           StringRef::from_lit("alpha; bravo; ; ;; charlie;;"),
94                           true, http2::HD_COOKIE);
95   req.fs.add_header_token(StringRef::from_lit("cookie"),
96                           StringRef::from_lit(";delta"), false,
97                           http2::HD_COOKIE);
98   req.fs.add_header_token(StringRef::from_lit("cookie"),
99                           StringRef::from_lit("echo"), false, http2::HD_COOKIE);
100 
101   std::vector<nghttp2_nv> nva;
102   d.crumble_request_cookie(nva);
103 
104   auto num_cookies = d.count_crumble_request_cookie();
105 
106   CU_ASSERT(5 == nva.size());
107   CU_ASSERT(5 == num_cookies);
108 
109   HeaderRefs cookies;
110   std::transform(std::begin(nva), std::end(nva), std::back_inserter(cookies),
111                  [](const nghttp2_nv &nv) {
112                    return HeaderRef(StringRef{nv.name, nv.namelen},
113                                     StringRef{nv.value, nv.valuelen},
114                                     nv.flags & NGHTTP2_NV_FLAG_NO_INDEX);
115                  });
116 
117   HeaderRefs ans = {
118       {StringRef::from_lit("cookie"), StringRef::from_lit("alpha")},
119       {StringRef::from_lit("cookie"), StringRef::from_lit("bravo")},
120       {StringRef::from_lit("cookie"), StringRef::from_lit("charlie")},
121       {StringRef::from_lit("cookie"), StringRef::from_lit("delta")},
122       {StringRef::from_lit("cookie"), StringRef::from_lit("echo")}};
123 
124   CU_ASSERT(ans == cookies);
125   CU_ASSERT(cookies[0].no_index);
126   CU_ASSERT(cookies[1].no_index);
127   CU_ASSERT(cookies[2].no_index);
128 }
129 
test_downstream_assemble_request_cookie(void)130 void test_downstream_assemble_request_cookie(void) {
131   Downstream d(nullptr, nullptr, 0);
132   auto &req = d.request();
133 
134   req.fs.add_header_token(StringRef::from_lit(":method"),
135                           StringRef::from_lit("get"), false, -1);
136   req.fs.add_header_token(StringRef::from_lit(":path"),
137                           StringRef::from_lit("/"), false, -1);
138   req.fs.add_header_token(StringRef::from_lit("cookie"),
139                           StringRef::from_lit("alpha"), false,
140                           http2::HD_COOKIE);
141   req.fs.add_header_token(StringRef::from_lit("cookie"),
142                           StringRef::from_lit("bravo;"), false,
143                           http2::HD_COOKIE);
144   req.fs.add_header_token(StringRef::from_lit("cookie"),
145                           StringRef::from_lit("charlie; "), false,
146                           http2::HD_COOKIE);
147   req.fs.add_header_token(StringRef::from_lit("cookie"),
148                           StringRef::from_lit("delta;;"), false,
149                           http2::HD_COOKIE);
150   CU_ASSERT("alpha; bravo; charlie; delta" == d.assemble_request_cookie());
151 }
152 
test_downstream_rewrite_location_response_header(void)153 void test_downstream_rewrite_location_response_header(void) {
154   Downstream d(nullptr, nullptr, 0);
155   auto &req = d.request();
156   auto &resp = d.response();
157   d.set_request_downstream_host(StringRef::from_lit("localhost2"));
158   req.authority = StringRef::from_lit("localhost:8443");
159   resp.fs.add_header_token(StringRef::from_lit("location"),
160                            StringRef::from_lit("http://localhost2:3000/"),
161                            false, http2::HD_LOCATION);
162   d.rewrite_location_response_header(StringRef::from_lit("https"));
163   auto location = resp.fs.header(http2::HD_LOCATION);
164   CU_ASSERT("https://localhost:8443/" == (*location).value);
165 }
166 
test_downstream_supports_non_final_response(void)167 void test_downstream_supports_non_final_response(void) {
168   Downstream d(nullptr, nullptr, 0);
169   auto &req = d.request();
170 
171   req.http_major = 3;
172   req.http_minor = 0;
173 
174   CU_ASSERT(d.supports_non_final_response());
175 
176   req.http_major = 2;
177   req.http_minor = 0;
178 
179   CU_ASSERT(d.supports_non_final_response());
180 
181   req.http_major = 1;
182   req.http_minor = 1;
183 
184   CU_ASSERT(d.supports_non_final_response());
185 
186   req.http_major = 1;
187   req.http_minor = 0;
188 
189   CU_ASSERT(!d.supports_non_final_response());
190 
191   req.http_major = 0;
192   req.http_minor = 9;
193 
194   CU_ASSERT(!d.supports_non_final_response());
195 }
196 
test_downstream_find_affinity_cookie(void)197 void test_downstream_find_affinity_cookie(void) {
198   Downstream d(nullptr, nullptr, 0);
199 
200   auto &req = d.request();
201   req.fs.add_header_token(StringRef::from_lit("cookie"), StringRef{}, false,
202                           http2::HD_COOKIE);
203   req.fs.add_header_token(StringRef::from_lit("cookie"),
204                           StringRef::from_lit("a=b;;c=d"), false,
205                           http2::HD_COOKIE);
206   req.fs.add_header_token(StringRef::from_lit("content-length"),
207                           StringRef::from_lit("599"), false,
208                           http2::HD_CONTENT_LENGTH);
209   req.fs.add_header_token(StringRef::from_lit("cookie"),
210                           StringRef::from_lit("lb=deadbeef;LB=f1f2f3f4"), false,
211                           http2::HD_COOKIE);
212   req.fs.add_header_token(StringRef::from_lit("cookie"),
213                           StringRef::from_lit("short=e1e2e3e"), false,
214                           http2::HD_COOKIE);
215 
216   uint32_t aff;
217 
218   aff = d.find_affinity_cookie(StringRef::from_lit("lb"));
219 
220   CU_ASSERT(0xdeadbeef == aff);
221 
222   aff = d.find_affinity_cookie(StringRef::from_lit("LB"));
223 
224   CU_ASSERT(0xf1f2f3f4 == aff);
225 
226   aff = d.find_affinity_cookie(StringRef::from_lit("short"));
227 
228   CU_ASSERT(0 == aff);
229 }
230 
231 } // namespace shrpx
232