#include <curl/curl.h>
#include <curl/easy.h>
-#if LIBCURL_VERSION_NUM >= 0x070908
+#include "strbuf.h"
+#include "remote.h"
+
+/*
+ * We detect based on the cURL version if multi-transfer is
+ * usable in this implementation and define this symbol accordingly.
+ * This is not something Makefile should set nor users should pass
+ * via CFLAGS.
+ */
+#undef USE_CURL_MULTI
+
+#if LIBCURL_VERSION_NUM >= 0x071000
#define USE_CURL_MULTI
#define DEFAULT_MAX_REQUESTS 5
#endif
#define curl_global_init(a) do { /* nothing */ } while(0)
#endif
-#if LIBCURL_VERSION_NUM < 0x070c04
+#if (LIBCURL_VERSION_NUM < 0x070c04) || (LIBCURL_VERSION_NUM == 0x071000)
#define NO_CURL_EASY_DUPHANDLE
#endif
#define CURLE_HTTP_RETURNED_ERROR CURLE_HTTP_NOT_FOUND
#endif
+#if LIBCURL_VERSION_NUM < 0x070c03
+#define NO_CURL_IOCTL
+#endif
+
struct slot_results
{
CURLcode curl_result;
struct buffer
{
- size_t posn;
- size_t size;
- void *buffer;
+ struct strbuf buf;
+ size_t posn;
};
/* Curl request read/write callbacks */
-extern size_t fread_buffer(void *ptr, size_t eltsize, size_t nmemb,
- struct buffer *buffer);
-extern size_t fwrite_buffer(const void *ptr, size_t eltsize,
- size_t nmemb, struct buffer *buffer);
-extern size_t fwrite_null(const void *ptr, size_t eltsize,
- size_t nmemb, struct buffer *buffer);
+extern size_t fread_buffer(void *ptr, size_t eltsize, size_t nmemb, void *strbuf);
+extern size_t fwrite_buffer(const void *ptr, size_t eltsize, size_t nmemb, void *strbuf);
+extern size_t fwrite_null(const void *ptr, size_t eltsize, size_t nmemb, void *strbuf);
+#ifndef NO_CURL_IOCTL
+extern curlioerr ioctl_buffer(CURL *handle, int cmd, void *clientp);
+#endif
/* Slot lifecycle functions */
extern struct active_request_slot *get_active_slot(void);
extern int start_active_slot(struct active_request_slot *slot);
extern void run_active_slot(struct active_request_slot *slot);
+extern void finish_active_slot(struct active_request_slot *slot);
extern void finish_all_active_slots(void);
extern void release_active_slot(struct active_request_slot *slot);
#ifdef USE_CURL_MULTI
extern void fill_active_slots(void);
+extern void add_fill_function(void *data, int (*fill)(void *));
extern void step_active_slots(void);
#endif
-extern void http_init(void);
+extern void http_init(struct remote *remote);
extern void http_cleanup(void);
extern int data_received;
extern int active_requests;
+extern int http_is_verbose;
+extern size_t http_post_buffer;
-#ifdef USE_CURL_MULTI
-extern int max_requests;
-extern CURLM *curlm;
-#endif
-#ifndef NO_CURL_EASY_DUPHANDLE
-extern CURL *curl_default;
-#endif
extern char curl_errorstr[CURL_ERROR_SIZE];
-extern int curl_ssl_verify;
-extern char *ssl_cert;
-#if LIBCURL_VERSION_NUM >= 0x070902
-extern char *ssl_key;
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070908
-extern char *ssl_capath;
-#endif
-extern char *ssl_cainfo;
-extern long curl_low_speed_limit;
-extern long curl_low_speed_time;
+static inline int missing__target(int code, int result)
+{
+ return /* file:// URL -- do we ever use one??? */
+ (result == CURLE_FILE_COULDNT_READ_FILE) ||
+ /* http:// and https:// URL */
+ (code == 404 && result == CURLE_HTTP_RETURNED_ERROR) ||
+ /* ftp:// URL */
+ (code == 550 && result == CURLE_FTP_COULDNT_RETR_FILE)
+ ;
+}
+
+#define missing_target(a) missing__target((a)->http_code, (a)->curl_result)
+
+/* Helpers for modifying and creating URLs */
+extern void append_remote_object_url(struct strbuf *buf, const char *url,
+ const char *hex,
+ int only_two_digit_prefix);
+extern char *get_remote_object_url(const char *url, const char *hex,
+ int only_two_digit_prefix);
+
+/* Options for http_request_*() */
+#define HTTP_NO_CACHE 1
+
+/* Return values for http_request_*() */
+#define HTTP_OK 0
+#define HTTP_MISSING_TARGET 1
+#define HTTP_ERROR 2
+#define HTTP_START_FAILED 3
+
+/*
+ * Requests an url and stores the result in a strbuf.
+ *
+ * If the result pointer is NULL, a HTTP HEAD request is made instead of GET.
+ */
+int http_get_strbuf(const char *url, struct strbuf *result, int options);
+
+/*
+ * Downloads an url and stores the result in the given file.
+ *
+ * If a previous interrupted download is detected (i.e. a previous temporary
+ * file is still around) the download is resumed.
+ */
+int http_get_file(const char *url, const char *filename, int options);
+
+/*
+ * Prints an error message using error() containing url and curl_errorstr,
+ * and returns ret.
+ */
+int http_error(const char *url, int ret);
+
+extern int http_fetch_ref(const char *base, struct ref *ref);
+
+/* Helpers for fetching packs */
+extern int http_get_info_packs(const char *base_url,
+ struct packed_git **packs_head);
+
+struct http_pack_request
+{
+ char *url;
+ struct packed_git *target;
+ struct packed_git **lst;
+ FILE *packfile;
+ char filename[PATH_MAX];
+ char tmpfile[PATH_MAX];
+ struct curl_slist *range_header;
+ struct active_request_slot *slot;
+};
+
+extern struct http_pack_request *new_http_pack_request(
+ struct packed_git *target, const char *base_url);
+extern int finish_http_pack_request(struct http_pack_request *preq);
+extern void release_http_pack_request(struct http_pack_request *preq);
-extern struct curl_slist *pragma_header;
-extern struct curl_slist *no_range_header;
+/* Helpers for fetching object */
+struct http_object_request
+{
+ char *url;
+ char filename[PATH_MAX];
+ char tmpfile[PATH_MAX];
+ int localfile;
+ CURLcode curl_result;
+ char errorstr[CURL_ERROR_SIZE];
+ long http_code;
+ unsigned char sha1[20];
+ unsigned char real_sha1[20];
+ git_SHA_CTX c;
+ z_stream stream;
+ int zret;
+ int rename;
+ struct active_request_slot *slot;
+};
-extern struct active_request_slot *active_queue_head;
+extern struct http_object_request *new_http_object_request(
+ const char *base_url, unsigned char *sha1);
+extern void process_http_object_request(struct http_object_request *freq);
+extern int finish_http_object_request(struct http_object_request *freq);
+extern void abort_http_object_request(struct http_object_request *freq);
+extern void release_http_object_request(struct http_object_request *freq);
#endif /* HTTP_H */