1 /***************************************************************************
2  *                                  _   _ ____  _
3  *  Project                     ___| | | |  _ \| |
4  *                             / __| | | | |_) | |
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6  *                             \___|\___/|_| \_\_____|
7  *
8  * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
9  *
10  * This software is licensed as described in the file COPYING, which
11  * you should have received as part of this distribution. The terms
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16  * furnished to do so, under the terms of the COPYING file.
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18  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19  * KIND, either express or implied.
20  *
21  ***************************************************************************/
22 #include "test.h"
23 
24 /*
25   Check range/resume returned error codes and data presence.
26 
27   The input parameters are:
28   - CURLOPT_RANGE/CURLOPT_RESUME_FROM
29   - CURLOPT_FAILONERROR
30   - Returned http code (2xx/416)
31   - Content-Range header present in reply.
32 
33 */
34 
35 #include "memdebug.h"
36 
37 #define F_RESUME        (1 << 0)        /* resume/range. */
38 #define F_HTTP416       (1 << 1)        /* Server returns http code 416. */
39 #define F_FAIL          (1 << 2)        /* Fail on error. */
40 #define F_CONTENTRANGE  (1 << 3)        /* Server sends content-range hdr. */
41 #define F_IGNOREBODY    (1 << 4)        /* Body should be ignored. */
42 
43 struct testparams {
44   unsigned int flags; /* ORed flags as above. */
45   CURLcode result; /* Code that should be returned by curl_easy_perform(). */
46 };
47 
48 static const struct testparams params[] = {
49   { 0,                                                             CURLE_OK },
50   {                                 F_CONTENTRANGE,                CURLE_OK },
51   {                        F_FAIL,                                 CURLE_OK },
52   {                        F_FAIL | F_CONTENTRANGE,                CURLE_OK },
53   {            F_HTTP416,                                          CURLE_OK },
54   {            F_HTTP416 |          F_CONTENTRANGE,                CURLE_OK },
55   {            F_HTTP416 | F_FAIL |                  F_IGNOREBODY,
56                                                   CURLE_HTTP_RETURNED_ERROR },
57   {            F_HTTP416 | F_FAIL | F_CONTENTRANGE | F_IGNOREBODY,
58                                                   CURLE_HTTP_RETURNED_ERROR },
59   { F_RESUME |                                       F_IGNOREBODY,
60                                                           CURLE_RANGE_ERROR },
61   { F_RESUME |                      F_CONTENTRANGE,                CURLE_OK },
62   { F_RESUME |             F_FAIL |                  F_IGNOREBODY,
63                                                           CURLE_RANGE_ERROR },
64   { F_RESUME |             F_FAIL | F_CONTENTRANGE,                CURLE_OK },
65   { F_RESUME | F_HTTP416 |                           F_IGNOREBODY, CURLE_OK },
66   { F_RESUME | F_HTTP416 |          F_CONTENTRANGE | F_IGNOREBODY, CURLE_OK },
67   { F_RESUME | F_HTTP416 | F_FAIL |                  F_IGNOREBODY,
68                                                   CURLE_HTTP_RETURNED_ERROR },
69   { F_RESUME | F_HTTP416 | F_FAIL | F_CONTENTRANGE | F_IGNOREBODY,
70                                                   CURLE_HTTP_RETURNED_ERROR }
71 };
72 
73 static int      hasbody;
74 
writedata(char * data,size_t size,size_t nmemb,void * userdata)75 static size_t writedata(char *data, size_t size, size_t nmemb, void *userdata)
76 {
77   (void) data;
78   (void) userdata;
79 
80   if(size && nmemb)
81     hasbody = 1;
82   return size * nmemb;
83 }
84 
onetest(CURL * curl,const char * url,const struct testparams * p)85 static int onetest(CURL *curl, const char *url, const struct testparams *p)
86 {
87   CURLcode res;
88   unsigned int replyselector;
89   char urlbuf[256];
90 
91   replyselector = (p->flags & F_CONTENTRANGE)? 1: 0;
92   if(p->flags & F_HTTP416)
93     replyselector += 2;
94   msnprintf(urlbuf, sizeof(urlbuf), "%s%04u", url, replyselector);
95   test_setopt(curl, CURLOPT_URL, urlbuf);
96   test_setopt(curl, CURLOPT_RESUME_FROM, (p->flags & F_RESUME)? 3: 0);
97   test_setopt(curl, CURLOPT_RANGE, !(p->flags & F_RESUME)?
98                                    "3-1000000": (char *) NULL);
99   test_setopt(curl, CURLOPT_FAILONERROR, (p->flags & F_FAIL)? 1: 0);
100   hasbody = 0;
101   res = curl_easy_perform(curl);
102   if(res != p->result) {
103     fprintf(stderr, "bad error code (%d): resume=%s, fail=%s, http416=%s, "
104                     "content-range=%s, expected=%d\n", res,
105                     (p->flags & F_RESUME)? "yes": "no",
106                     (p->flags & F_FAIL)? "yes": "no",
107                     (p->flags & F_HTTP416)? "yes": "no",
108                     (p->flags & F_CONTENTRANGE)? "yes": "no",
109                     p->result);
110     return 1;
111   }
112   if(hasbody && (p->flags & F_IGNOREBODY)) {
113     fprintf(stderr, "body should be ignored and is not: resume=%s, fail=%s, "
114                     "http416=%s, content-range=%s\n",
115                     (p->flags & F_RESUME)? "yes": "no",
116                     (p->flags & F_FAIL)? "yes": "no",
117                     (p->flags & F_HTTP416)? "yes": "no",
118                     (p->flags & F_CONTENTRANGE)? "yes": "no");
119     return 1;
120   }
121   return 0;
122 
123   test_cleanup:
124 
125   return 1;
126 }
127 
test(char * URL)128 int test(char *URL)
129 {
130   CURLcode res;
131   CURL *curl;
132   size_t i;
133   int status = 0;
134 
135   if(curl_global_init(CURL_GLOBAL_ALL) != CURLE_OK) {
136     fprintf(stderr, "curl_global_init() failed\n");
137     return TEST_ERR_MAJOR_BAD;
138   }
139 
140   curl = curl_easy_init();
141   if(!curl) {
142     fprintf(stderr, "curl_easy_init() failed\n");
143     curl_global_cleanup();
144     return TEST_ERR_MAJOR_BAD;
145   }
146 
147   test_setopt(curl, CURLOPT_WRITEFUNCTION, writedata);
148 
149   for(i = 0; i < sizeof(params) / sizeof(params[0]); i++)
150     status |= onetest(curl, URL, params + i);
151 
152   curl_easy_cleanup(curl);
153   curl_global_cleanup();
154   return status;
155 
156   test_cleanup:
157 
158   curl_easy_cleanup(curl);
159   curl_global_cleanup();
160 
161   return (int)res;
162 }
163