diff options
Diffstat (limited to 'src/signature.c')
| -rw-r--r-- | src/signature.c | 333 |
1 files changed, 0 insertions, 333 deletions
diff --git a/src/signature.c b/src/signature.c deleted file mode 100644 index 1efda212a..000000000 --- a/src/signature.c +++ /dev/null @@ -1,333 +0,0 @@ -/* - * Copyright (C) the libgit2 contributors. All rights reserved. - * - * This file is part of libgit2, distributed under the GNU GPL v2 with - * a Linking Exception. For full terms see the included COPYING file. - */ - -#include "signature.h" - -#include "repository.h" -#include "git2/common.h" -#include "posix.h" - -void git_signature_free(git_signature *sig) -{ - if (sig == NULL) - return; - - git__free(sig->name); - sig->name = NULL; - git__free(sig->email); - sig->email = NULL; - git__free(sig); -} - -static int signature_error(const char *msg) -{ - git_error_set(GIT_ERROR_INVALID, "failed to parse signature - %s", msg); - return -1; -} - -static bool contains_angle_brackets(const char *input) -{ - return strchr(input, '<') != NULL || strchr(input, '>') != NULL; -} - -static bool is_crud(unsigned char c) -{ - return c <= 32 || - c == '.' || - c == ',' || - c == ':' || - c == ';' || - c == '<' || - c == '>' || - c == '"' || - c == '\\' || - c == '\''; -} - -static char *extract_trimmed(const char *ptr, size_t len) -{ - while (len && is_crud((unsigned char)ptr[0])) { - ptr++; len--; - } - - while (len && is_crud((unsigned char)ptr[len - 1])) { - len--; - } - - return git__substrdup(ptr, len); -} - -int git_signature_new(git_signature **sig_out, const char *name, const char *email, git_time_t time, int offset) -{ - git_signature *p = NULL; - - GIT_ASSERT_ARG(name); - GIT_ASSERT_ARG(email); - - *sig_out = NULL; - - if (contains_angle_brackets(name) || - contains_angle_brackets(email)) { - return signature_error( - "Neither `name` nor `email` should contain angle brackets chars."); - } - - p = git__calloc(1, sizeof(git_signature)); - GIT_ERROR_CHECK_ALLOC(p); - - p->name = extract_trimmed(name, strlen(name)); - GIT_ERROR_CHECK_ALLOC(p->name); - p->email = extract_trimmed(email, strlen(email)); - GIT_ERROR_CHECK_ALLOC(p->email); - - if (p->name[0] == '\0' || p->email[0] == '\0') { - git_signature_free(p); - return signature_error("Signature cannot have an empty name or email"); - } - - p->when.time = time; - p->when.offset = offset; - p->when.sign = (offset < 0) ? '-' : '+'; - - *sig_out = p; - return 0; -} - -int git_signature_dup(git_signature **dest, const git_signature *source) -{ - git_signature *signature; - - if (source == NULL) - return 0; - - signature = git__calloc(1, sizeof(git_signature)); - GIT_ERROR_CHECK_ALLOC(signature); - - signature->name = git__strdup(source->name); - GIT_ERROR_CHECK_ALLOC(signature->name); - - signature->email = git__strdup(source->email); - GIT_ERROR_CHECK_ALLOC(signature->email); - - signature->when.time = source->when.time; - signature->when.offset = source->when.offset; - signature->when.sign = source->when.sign; - - *dest = signature; - - return 0; -} - -int git_signature__pdup(git_signature **dest, const git_signature *source, git_pool *pool) -{ - git_signature *signature; - - if (source == NULL) - return 0; - - signature = git_pool_mallocz(pool, sizeof(git_signature)); - GIT_ERROR_CHECK_ALLOC(signature); - - signature->name = git_pool_strdup(pool, source->name); - GIT_ERROR_CHECK_ALLOC(signature->name); - - signature->email = git_pool_strdup(pool, source->email); - GIT_ERROR_CHECK_ALLOC(signature->email); - - signature->when.time = source->when.time; - signature->when.offset = source->when.offset; - signature->when.sign = source->when.sign; - - *dest = signature; - - return 0; -} - -int git_signature_now(git_signature **sig_out, const char *name, const char *email) -{ - time_t now; - time_t offset; - struct tm *utc_tm; - git_signature *sig; - struct tm _utc; - - *sig_out = NULL; - - /* - * Get the current time as seconds since the epoch and - * transform that into a tm struct containing the time at - * UTC. Give that to mktime which considers it a local time - * (tm_isdst = -1 asks it to take DST into account) and gives - * us that time as seconds since the epoch. The difference - * between its return value and 'now' is our offset to UTC. - */ - time(&now); - utc_tm = p_gmtime_r(&now, &_utc); - utc_tm->tm_isdst = -1; - offset = (time_t)difftime(now, mktime(utc_tm)); - offset /= 60; - - if (git_signature_new(&sig, name, email, now, (int)offset) < 0) - return -1; - - *sig_out = sig; - - return 0; -} - -int git_signature_default(git_signature **out, git_repository *repo) -{ - int error; - git_config *cfg; - const char *user_name, *user_email; - - if ((error = git_repository_config_snapshot(&cfg, repo)) < 0) - return error; - - if (!(error = git_config_get_string(&user_name, cfg, "user.name")) && - !(error = git_config_get_string(&user_email, cfg, "user.email"))) - error = git_signature_now(out, user_name, user_email); - - git_config_free(cfg); - return error; -} - -int git_signature__parse(git_signature *sig, const char **buffer_out, - const char *buffer_end, const char *header, char ender) -{ - const char *buffer = *buffer_out; - const char *email_start, *email_end; - - memset(sig, 0, sizeof(git_signature)); - - if (ender && - (buffer_end = memchr(buffer, ender, buffer_end - buffer)) == NULL) - return signature_error("no newline given"); - - if (header) { - const size_t header_len = strlen(header); - - if (buffer + header_len >= buffer_end || memcmp(buffer, header, header_len) != 0) - return signature_error("expected prefix doesn't match actual"); - - buffer += header_len; - } - - email_start = git__memrchr(buffer, '<', buffer_end - buffer); - email_end = git__memrchr(buffer, '>', buffer_end - buffer); - - if (!email_start || !email_end || email_end <= email_start) - return signature_error("malformed e-mail"); - - email_start += 1; - sig->name = extract_trimmed(buffer, email_start - buffer - 1); - sig->email = extract_trimmed(email_start, email_end - email_start); - - /* Do we even have a time at the end of the signature? */ - if (email_end + 2 < buffer_end) { - const char *time_start = email_end + 2; - const char *time_end; - - if (git__strntol64(&sig->when.time, time_start, - buffer_end - time_start, &time_end, 10) < 0) { - git__free(sig->name); - git__free(sig->email); - sig->name = sig->email = NULL; - return signature_error("invalid Unix timestamp"); - } - - /* do we have a timezone? */ - if (time_end + 1 < buffer_end) { - int offset, hours, mins; - const char *tz_start, *tz_end; - - tz_start = time_end + 1; - - if ((tz_start[0] != '-' && tz_start[0] != '+') || - git__strntol32(&offset, tz_start + 1, - buffer_end - tz_start - 1, &tz_end, 10) < 0) { - /* malformed timezone, just assume it's zero */ - offset = 0; - } - - hours = offset / 100; - mins = offset % 100; - - /* - * only store timezone if it's not overflowing; - * see http://www.worldtimezone.com/faq.html - */ - if (hours <= 14 && mins <= 59) { - sig->when.offset = (hours * 60) + mins; - sig->when.sign = tz_start[0]; - if (tz_start[0] == '-') - sig->when.offset = -sig->when.offset; - } - } - } - - *buffer_out = buffer_end + 1; - return 0; -} - -int git_signature_from_buffer(git_signature **out, const char *buf) -{ - git_signature *sig; - const char *buf_end; - int error; - - GIT_ASSERT_ARG(out); - GIT_ASSERT_ARG(buf); - - *out = NULL; - - sig = git__calloc(1, sizeof(git_signature)); - GIT_ERROR_CHECK_ALLOC(sig); - - buf_end = buf + strlen(buf); - error = git_signature__parse(sig, &buf, buf_end, NULL, '\0'); - - if (error) - git__free(sig); - else - *out = sig; - - return error; -} - -void git_signature__writebuf(git_buf *buf, const char *header, const git_signature *sig) -{ - int offset, hours, mins; - char sign; - - offset = sig->when.offset; - sign = (sig->when.offset < 0 || sig->when.sign == '-') ? '-' : '+'; - - if (offset < 0) - offset = -offset; - - hours = offset / 60; - mins = offset % 60; - - git_buf_printf(buf, "%s%s <%s> %u %c%02d%02d\n", - header ? header : "", sig->name, sig->email, - (unsigned)sig->when.time, sign, hours, mins); -} - -bool git_signature__equal(const git_signature *one, const git_signature *two) -{ - GIT_ASSERT_ARG(one); - GIT_ASSERT_ARG(two); - - return - git__strcmp(one->name, two->name) == 0 && - git__strcmp(one->email, two->email) == 0 && - one->when.time == two->when.time && - one->when.offset == two->when.offset && - one->when.sign == two->when.sign; -} - |