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Commit | Line | Data |
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29508e1e NH |
1 | #ifndef HTTP_H |
2 | #define HTTP_H | |
3 | ||
4 | #include "cache.h" | |
5 | ||
6 | #include <curl/curl.h> | |
7 | #include <curl/easy.h> | |
8 | ||
028c2976 | 9 | #include "strbuf.h" |
9fc6440d | 10 | #include "remote.h" |
1966d9f3 | 11 | #include "url.h" |
028c2976 | 12 | |
4f5f998f JH |
13 | /* |
14 | * We detect based on the cURL version if multi-transfer is | |
15 | * usable in this implementation and define this symbol accordingly. | |
16 | * This is not something Makefile should set nor users should pass | |
17 | * via CFLAGS. | |
18 | */ | |
19 | #undef USE_CURL_MULTI | |
20 | ||
9cf04301 | 21 | #if LIBCURL_VERSION_NUM >= 0x071000 |
29508e1e NH |
22 | #define USE_CURL_MULTI |
23 | #define DEFAULT_MAX_REQUESTS 5 | |
24 | #endif | |
25 | ||
26 | #if LIBCURL_VERSION_NUM < 0x070704 | |
98746061 | 27 | #define curl_global_cleanup() do { /* nothing */ } while (0) |
29508e1e NH |
28 | #endif |
29 | #if LIBCURL_VERSION_NUM < 0x070800 | |
98746061 | 30 | #define curl_global_init(a) do { /* nothing */ } while (0) |
29508e1e NH |
31 | #endif |
32 | ||
500ebb01 | 33 | #if (LIBCURL_VERSION_NUM < 0x070c04) || (LIBCURL_VERSION_NUM == 0x071000) |
29508e1e NH |
34 | #define NO_CURL_EASY_DUPHANDLE |
35 | #endif | |
36 | ||
c774b2dc AH |
37 | #if LIBCURL_VERSION_NUM < 0x070a03 |
38 | #define CURLE_HTTP_RETURNED_ERROR CURLE_HTTP_NOT_FOUND | |
39 | #endif | |
40 | ||
3944ba0c MS |
41 | #if LIBCURL_VERSION_NUM < 0x070c03 |
42 | #define NO_CURL_IOCTL | |
43 | #endif | |
44 | ||
9cba13ca | 45 | struct slot_results { |
c8568e13 NH |
46 | CURLcode curl_result; |
47 | long http_code; | |
48 | }; | |
49 | ||
9cba13ca | 50 | struct active_request_slot { |
29508e1e | 51 | CURL *curl; |
29508e1e NH |
52 | int in_use; |
53 | CURLcode curl_result; | |
54 | long http_code; | |
baa7b67d | 55 | int *finished; |
c8568e13 | 56 | struct slot_results *results; |
29508e1e NH |
57 | void *callback_data; |
58 | void (*callback_func)(void *data); | |
59 | struct active_request_slot *next; | |
60 | }; | |
61 | ||
9cba13ca | 62 | struct buffer { |
028c2976 MH |
63 | struct strbuf buf; |
64 | size_t posn; | |
29508e1e NH |
65 | }; |
66 | ||
67 | /* Curl request read/write callbacks */ | |
a04ff3ec DM |
68 | extern size_t fread_buffer(char *ptr, size_t eltsize, size_t nmemb, void *strbuf); |
69 | extern size_t fwrite_buffer(char *ptr, size_t eltsize, size_t nmemb, void *strbuf); | |
70 | extern size_t fwrite_null(char *ptr, size_t eltsize, size_t nmemb, void *strbuf); | |
3944ba0c MS |
71 | #ifndef NO_CURL_IOCTL |
72 | extern curlioerr ioctl_buffer(CURL *handle, int cmd, void *clientp); | |
73 | #endif | |
29508e1e NH |
74 | |
75 | /* Slot lifecycle functions */ | |
76 | extern struct active_request_slot *get_active_slot(void); | |
77 | extern int start_active_slot(struct active_request_slot *slot); | |
78 | extern void run_active_slot(struct active_request_slot *slot); | |
de1a2fdd | 79 | extern void finish_active_slot(struct active_request_slot *slot); |
29508e1e NH |
80 | extern void finish_all_active_slots(void); |
81 | ||
82 | #ifdef USE_CURL_MULTI | |
83 | extern void fill_active_slots(void); | |
fc57b6aa | 84 | extern void add_fill_function(void *data, int (*fill)(void *)); |
29508e1e NH |
85 | extern void step_active_slots(void); |
86 | #endif | |
87 | ||
deba4937 | 88 | extern void http_init(struct remote *remote, const char *url); |
29508e1e NH |
89 | extern void http_cleanup(void); |
90 | ||
29508e1e | 91 | extern int active_requests; |
e9176745 | 92 | extern int http_is_verbose; |
de1a2fdd | 93 | extern size_t http_post_buffer; |
29508e1e | 94 | |
29508e1e NH |
95 | extern char curl_errorstr[CURL_ERROR_SIZE]; |
96 | ||
e8dc37e0 MH |
97 | static inline int missing__target(int code, int result) |
98 | { | |
99 | return /* file:// URL -- do we ever use one??? */ | |
100 | (result == CURLE_FILE_COULDNT_READ_FILE) || | |
101 | /* http:// and https:// URL */ | |
102 | (code == 404 && result == CURLE_HTTP_RETURNED_ERROR) || | |
103 | /* ftp:// URL */ | |
104 | (code == 550 && result == CURLE_FTP_COULDNT_RETR_FILE) | |
105 | ; | |
106 | } | |
107 | ||
108 | #define missing_target(a) missing__target((a)->http_code, (a)->curl_result) | |
109 | ||
5424bc55 TRC |
110 | /* Helpers for modifying and creating URLs */ |
111 | extern void append_remote_object_url(struct strbuf *buf, const char *url, | |
112 | const char *hex, | |
113 | int only_two_digit_prefix); | |
114 | extern char *get_remote_object_url(const char *url, const char *hex, | |
115 | int only_two_digit_prefix); | |
116 | ||
e929cd20 MH |
117 | /* Options for http_request_*() */ |
118 | #define HTTP_NO_CACHE 1 | |
119 | ||
120 | /* Return values for http_request_*() */ | |
121 | #define HTTP_OK 0 | |
122 | #define HTTP_MISSING_TARGET 1 | |
123 | #define HTTP_ERROR 2 | |
124 | #define HTTP_START_FAILED 3 | |
42653c09 SC |
125 | #define HTTP_REAUTH 4 |
126 | #define HTTP_NOAUTH 5 | |
e929cd20 MH |
127 | |
128 | /* | |
129 | * Requests an url and stores the result in a strbuf. | |
130 | * | |
131 | * If the result pointer is NULL, a HTTP HEAD request is made instead of GET. | |
132 | */ | |
133 | int http_get_strbuf(const char *url, struct strbuf *result, int options); | |
134 | ||
e929cd20 MH |
135 | /* |
136 | * Prints an error message using error() containing url and curl_errorstr, | |
137 | * and returns ret. | |
138 | */ | |
139 | int http_error(const char *url, int ret); | |
140 | ||
c13b2633 | 141 | extern int http_fetch_ref(const char *base, struct ref *ref); |
d7e92806 | 142 | |
b8caac2b TRC |
143 | /* Helpers for fetching packs */ |
144 | extern int http_get_info_packs(const char *base_url, | |
145 | struct packed_git **packs_head); | |
146 | ||
9cba13ca | 147 | struct http_pack_request { |
2264dfa5 TRC |
148 | char *url; |
149 | struct packed_git *target; | |
150 | struct packed_git **lst; | |
151 | FILE *packfile; | |
2264dfa5 TRC |
152 | char tmpfile[PATH_MAX]; |
153 | struct curl_slist *range_header; | |
154 | struct active_request_slot *slot; | |
155 | }; | |
156 | ||
157 | extern struct http_pack_request *new_http_pack_request( | |
158 | struct packed_git *target, const char *base_url); | |
159 | extern int finish_http_pack_request(struct http_pack_request *preq); | |
160 | extern void release_http_pack_request(struct http_pack_request *preq); | |
161 | ||
5424bc55 | 162 | /* Helpers for fetching object */ |
9cba13ca | 163 | struct http_object_request { |
5424bc55 | 164 | char *url; |
5424bc55 TRC |
165 | char tmpfile[PATH_MAX]; |
166 | int localfile; | |
167 | CURLcode curl_result; | |
168 | char errorstr[CURL_ERROR_SIZE]; | |
169 | long http_code; | |
170 | unsigned char sha1[20]; | |
171 | unsigned char real_sha1[20]; | |
172 | git_SHA_CTX c; | |
ef49a7a0 | 173 | git_zstream stream; |
5424bc55 TRC |
174 | int zret; |
175 | int rename; | |
176 | struct active_request_slot *slot; | |
177 | }; | |
178 | ||
179 | extern struct http_object_request *new_http_object_request( | |
180 | const char *base_url, unsigned char *sha1); | |
181 | extern void process_http_object_request(struct http_object_request *freq); | |
182 | extern int finish_http_object_request(struct http_object_request *freq); | |
183 | extern void abort_http_object_request(struct http_object_request *freq); | |
184 | extern void release_http_object_request(struct http_object_request *freq); | |
185 | ||
29508e1e | 186 | #endif /* HTTP_H */ |