From c8bae7493d2f2910b57f13ded012e86bdcfb0532 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 16:47:53 +0200 Subject: Adding upstream version 1:2.39.2. Signed-off-by: Daniel Baumann --- http.h | 249 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 249 insertions(+) create mode 100644 http.h (limited to 'http.h') diff --git a/http.h b/http.h new file mode 100644 index 0000000..77c0427 --- /dev/null +++ b/http.h @@ -0,0 +1,249 @@ +#ifndef HTTP_H +#define HTTP_H + +#include "cache.h" + +#include +#include + +#include "strbuf.h" +#include "remote.h" +#include "url.h" + +#define DEFAULT_MAX_REQUESTS 5 + +struct slot_results { + CURLcode curl_result; + long http_code; + long auth_avail; + long http_connectcode; +}; + +struct active_request_slot { + CURL *curl; + int in_use; + CURLcode curl_result; + long http_code; + int *finished; + struct slot_results *results; + void *callback_data; + void (*callback_func)(void *data); + struct active_request_slot *next; +}; + +struct buffer { + struct strbuf buf; + size_t posn; +}; + +/* Curl request read/write callbacks */ +size_t fread_buffer(char *ptr, size_t eltsize, size_t nmemb, void *strbuf); +size_t fwrite_buffer(char *ptr, size_t eltsize, size_t nmemb, void *strbuf); +size_t fwrite_null(char *ptr, size_t eltsize, size_t nmemb, void *strbuf); +int seek_buffer(void *clientp, curl_off_t offset, int origin); + +/* Slot lifecycle functions */ +struct active_request_slot *get_active_slot(void); +int start_active_slot(struct active_request_slot *slot); +void run_active_slot(struct active_request_slot *slot); +void finish_all_active_slots(void); + +/* + * This will run one slot to completion in a blocking manner, similar to how + * curl_easy_perform would work (but we don't want to use that, because + * we do not want to intermingle calls to curl_multi and curl_easy). + * + */ +int run_one_slot(struct active_request_slot *slot, + struct slot_results *results); + +void fill_active_slots(void); +void add_fill_function(void *data, int (*fill)(void *)); +void step_active_slots(void); + +void http_init(struct remote *remote, const char *url, + int proactive_auth); +void http_cleanup(void); +struct curl_slist *http_copy_default_headers(void); + +extern long int git_curl_ipresolve; +extern int active_requests; +extern int http_is_verbose; +extern ssize_t http_post_buffer; +extern struct credential http_auth; + +extern char curl_errorstr[CURL_ERROR_SIZE]; + +enum http_follow_config { + HTTP_FOLLOW_NONE, + HTTP_FOLLOW_ALWAYS, + HTTP_FOLLOW_INITIAL +}; +extern enum http_follow_config http_follow_config; + +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) + +/* + * Normalize curl results to handle CURL_FAILONERROR (or lack thereof). Failing + * http codes have their "result" converted to CURLE_HTTP_RETURNED_ERROR, and + * an appropriate string placed in the errorstr buffer (pass curl_errorstr if + * you don't have a custom buffer). + */ +void normalize_curl_result(CURLcode *result, long http_code, char *errorstr, + size_t errorlen); + +/* Helpers for modifying and creating URLs */ +void append_remote_object_url(struct strbuf *buf, const char *url, + const char *hex, + int only_two_digit_prefix); +char *get_remote_object_url(const char *url, const char *hex, + int only_two_digit_prefix); + +/* Options for http_get_*() */ +struct http_get_options { + unsigned no_cache:1, + initial_request:1; + + /* If non-NULL, returns the content-type of the response. */ + struct strbuf *content_type; + + /* + * If non-NULL, and content_type above is non-NULL, returns + * the charset parameter from the content-type. If none is + * present, returns an empty string. + */ + struct strbuf *charset; + + /* + * If non-NULL, returns the URL we ended up at, including any + * redirects we followed. + */ + struct strbuf *effective_url; + + /* + * If both base_url and effective_url are non-NULL, the base URL will + * be munged to reflect any redirections going from the requested url + * to effective_url. See the definition of update_url_from_redirect + * for details. + */ + struct strbuf *base_url; + + /* + * If not NULL, contains additional HTTP headers to be sent with the + * request. The strings in the list must not be freed until after the + * request has completed. + */ + struct string_list *extra_headers; +}; + +/* Return values for http_get_*() */ +#define HTTP_OK 0 +#define HTTP_MISSING_TARGET 1 +#define HTTP_ERROR 2 +#define HTTP_START_FAILED 3 +#define HTTP_REAUTH 4 +#define HTTP_NOAUTH 5 +#define HTTP_NOMATCHPUBLICKEY 6 + +/* + * Requests a 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, struct http_get_options *options); + +/* + * Downloads a 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, + struct http_get_options *options); + +int http_fetch_ref(const char *base, struct ref *ref); + +/* Helpers for fetching packs */ +int http_get_info_packs(const char *base_url, + struct packed_git **packs_head); + +/* Helper for getting Accept-Language header */ +const char *http_get_accept_language_header(void); + +struct http_pack_request { + char *url; + + /* + * index-pack command to run. Must be terminated by NULL. + * + * If NULL, defaults to {"index-pack", "--stdin", NULL}. + */ + const char **index_pack_args; + unsigned preserve_index_pack_stdout : 1; + + FILE *packfile; + struct strbuf tmpfile; + struct active_request_slot *slot; +}; + +struct http_pack_request *new_http_pack_request( + const unsigned char *packed_git_hash, const char *base_url); +struct http_pack_request *new_direct_http_pack_request( + const unsigned char *packed_git_hash, char *url); +int finish_http_pack_request(struct http_pack_request *preq); +void release_http_pack_request(struct http_pack_request *preq); + +/* + * Remove p from the given list, and invoke install_packed_git() on it. + * + * This is a convenience function for users that have obtained a list of packs + * from http_get_info_packs() and have chosen a specific pack to fetch. + */ +void http_install_packfile(struct packed_git *p, + struct packed_git **list_to_remove_from); + +/* Helpers for fetching object */ +struct http_object_request { + char *url; + struct strbuf tmpfile; + int localfile; + CURLcode curl_result; + char errorstr[CURL_ERROR_SIZE]; + long http_code; + struct object_id oid; + struct object_id real_oid; + git_hash_ctx c; + git_zstream stream; + int zret; + int rename; + struct active_request_slot *slot; +}; + +struct http_object_request *new_http_object_request( + const char *base_url, const struct object_id *oid); +void process_http_object_request(struct http_object_request *freq); +int finish_http_object_request(struct http_object_request *freq); +void abort_http_object_request(struct http_object_request *freq); +void release_http_object_request(struct http_object_request *freq); + +/* + * Instead of using environment variables to determine if curl tracing happens, + * behave as if GIT_TRACE_CURL=1 and GIT_TRACE_CURL_NO_DATA=1 is set. Call this + * before calling setup_curl_trace(). + */ +void http_trace_curl_no_data(void); + +/* setup routine for curl_easy_setopt CURLOPT_DEBUGFUNCTION */ +void setup_curl_trace(CURL *handle); +#endif /* HTTP_H */ -- cgit v1.2.3