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Every %(describe) placeholder in $Format:...$ strings in files with the attribute export-subst is expanded by calling git describe. This can potentially result in a lot of such calls per archive. That's OK for local repositories under control of the user of git archive, but could be a problem for hosted repositories. Expand only a single %(describe) placeholder per archive for now to avoid denial-of-service attacks. We can make this limit configurable later if needed, but let's start out simple. Reported-by: Jeff King <peff@peff.net> Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
62 lines
1.5 KiB
C
62 lines
1.5 KiB
C
#ifndef ARCHIVE_H
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#define ARCHIVE_H
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#include "cache.h"
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#include "pathspec.h"
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struct repository;
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struct pretty_print_context;
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struct archiver_args {
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struct repository *repo;
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char *refname;
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const char *prefix;
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const char *base;
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size_t baselen;
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struct tree *tree;
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const struct object_id *commit_oid;
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const struct commit *commit;
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timestamp_t time;
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struct pathspec pathspec;
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unsigned int verbose : 1;
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unsigned int worktree_attributes : 1;
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unsigned int convert : 1;
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int compression_level;
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struct string_list extra_files;
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struct pretty_print_context *pretty_ctx;
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};
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/* main api */
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int write_archive(int argc, const char **argv, const char *prefix,
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struct repository *repo,
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const char *name_hint, int remote);
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const char *archive_format_from_filename(const char *filename);
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/* archive backend stuff */
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#define ARCHIVER_WANT_COMPRESSION_LEVELS 1
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#define ARCHIVER_REMOTE 2
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#define ARCHIVER_HIGH_COMPRESSION_LEVELS 4
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struct archiver {
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const char *name;
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int (*write_archive)(const struct archiver *, struct archiver_args *);
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unsigned flags;
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void *data;
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};
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void register_archiver(struct archiver *);
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void init_tar_archiver(void);
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void init_zip_archiver(void);
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void init_archivers(void);
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typedef int (*write_archive_entry_fn_t)(struct archiver_args *args,
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const struct object_id *oid,
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const char *path, size_t pathlen,
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unsigned int mode,
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void *buffer, unsigned long size);
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int write_archive_entries(struct archiver_args *args, write_archive_entry_fn_t write_entry);
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#endif /* ARCHIVE_H */
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