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#ifndef UI_SHARED_H
#define UI_SHARED_H

extern const char *cgit_httpscheme(void);
extern char *cgit_hosturl(void);
extern const char *cgit_rooturl(void);
extern char *cgit_currenturl(void);
extern const char *cgit_loginurl(void);
extern char *cgit_repourl(const char *reponame);
extern char *cgit_fileurl(const char *reponame, const char *pagename,
			  const char *filename, const char *query);
extern char *cgit_pageurl(const char *reponame, const char *pagename,
			  const char *query);

extern void cgit_add_clone_urls(void (*fn)(const char *));

extern void cgit_index_link(const char *name, const char *title,
			    const char *class, const char *pattern, const char *sort, int ofs, int always_root);
extern void cgit_summary_link(const char *name, const char *title,
			      const char *class, const char *head);
extern void cgit_tag_link(const char *name, const char *title,
			  const char *class, const char *tag);
extern void cgit_tree_link(const char *name, const char *title,
			   const char *class, const char *head,
			   const char *rev, const char *path);
extern void cgit_plain_link(const char *name, const char *title,
			    const char *class, const char *head,
			    const char *rev, const char *path);
extern void cgit_blame_link(const char *name, const char *title,
			    const char *class, const char *head,
			    const char *rev, const char *path);
extern void cgit_log_link(const char *name, const char *title,
			  const char *class, const char *head, const char *rev,
			  const char *path, int ofs, const char *grep,
			  const char *pattern, int showmsg, int follow);
extern void cgit_commit_link(const char *name, const char *title,
			     const char *class, const char *head,
			     const char *rev, const char *path);
extern void cgit_patch_link(const char *name, const char *title,
			    const char *class, const char *head,
			    const char *rev, const char *path);
extern void cgit_refs_link(const char *name, const char *title,
			   const char *class, const char *head,
			   const char *rev, const char *path);
extern void cgit_snapshot_link(const char *name, const char *title,
			       const char *class, const char *head,
			       const char *rev, const char *archivename);
extern void cgit_diff_link(const char *name, const char *title,
			   const char *class, const char *head,
			   const char *new_rev, const char *old_rev,
			   const char *path);
extern void cgit_stats_link(const char *name, const char *title,
			    const char *class, const char *head,
			    const char *path);
extern void cgit_object_link(struct object *obj);

extern void cgit_submodule_link(const char *class, char *path,
				const char *rev);

extern void cgit_print_layout_start(void);
extern void cgit_print_layout_end(void);

__attribute__((format (printf,1,2)))
extern void cgit_print_error(const char *fmt, ...);
__attribute__((format (printf,1,0)))
extern void cgit_vprint_error(const char *fmt, va_list ap);
extern const struct date_mode *cgit_date_mode(enum date_mode_type type);
extern void cgit_print_age(time_t t, int tz, time_t max_relative);
extern void cgit_print_http_headers(void);
extern void cgit_redirect(const char *url, bool permanent);
extern void cgit_print_docstart(void);
extern void cgit_print_docend(void);
__attribute__((format (printf,3,4)))
extern void cgit_print_error_page(int code, const char *msg, const char *fmt, ...);
extern void cgit_print_pageheader(void);
extern void cgit_print_filemode(unsigned short mode);
extern void cgit_compose_snapshot_prefix(struct strbuf *filename,
					 const char *base, const char *ref);
extern void cgit_print_snapshot_links(const struct cgit_repo *repo,
				      const char *hex);
extern const char *cgit_snapshot_prefix(const struct cgit_repo *repo);
extern void cgit_add_hidden_formfields(int incl_head, int incl_search,
				       const char *page);

extern void cgit_set_title_from_path(const char *path);
#endif /* UI_SHARED_H */
{ free(info->author); free(info->author_email); free(info->committer); free(info->committer_email); free(info->subject); free(info->msg); free(info->msg_encoding); free(info); return NULL; } char *trim_end(const char *str, char c) { int len; if (str == NULL) return NULL; len = strlen(str); while(len > 0 && str[len - 1] == c) len--; if (len == 0) return NULL; return xstrndup(str, len); } char *strlpart(char *txt, int maxlen) { char *result; if (!txt) return txt; if (strlen(txt) <= maxlen) return txt; result = xmalloc(maxlen + 1); memcpy(result, txt, maxlen - 3); result[maxlen-1] = result[maxlen-2] = result[maxlen-3] = '.'; result[maxlen] = '\0'; return result; } char *strrpart(char *txt, int maxlen) { char *result; if (!txt) return txt; if (strlen(txt) <= maxlen) return txt; result = xmalloc(maxlen + 1); memcpy(result + 3, txt + strlen(txt) - maxlen + 4, maxlen - 3); result[0] = result[1] = result[2] = '.'; return result; } void cgit_add_ref(struct reflist *list, struct refinfo *ref) { size_t size; if (list->count >= list->alloc) { list->alloc += (list->alloc ? list->alloc : 4); size = list->alloc * sizeof(struct refinfo *); list->refs = xrealloc(list->refs, size); } list->refs[list->count++] = ref; } struct refinfo *cgit_mk_refinfo(const char *refname, const unsigned char *sha1) { struct refinfo *ref; ref = xmalloc(sizeof (struct refinfo)); ref->refname = xstrdup(refname); ref->object = parse_object(sha1); switch (ref->object->type) { case OBJ_TAG: ref->tag = cgit_parse_tag((struct tag *)ref->object); break; case OBJ_COMMIT: ref->commit = cgit_parse_commit((struct commit *)ref->object); break; } return ref; } int cgit_refs_cb(const char *refname, const unsigned char *sha1, int flags, void *cb_data) { struct reflist *list = (struct reflist *)cb_data; struct refinfo *info = cgit_mk_refinfo(refname, sha1); if (info) cgit_add_ref(list, info); return 0; } void cgit_diff_tree_cb(struct diff_queue_struct *q, struct diff_options *options, void *data) { int i; for (i = 0; i < q->nr; i++) { if (q->queue[i]->status == 'U') continue; ((filepair_fn)data)(q->queue[i]); } } static int load_mmfile(mmfile_t *file, const unsigned char *sha1) { enum object_type type; if (is_null_sha1(sha1)) { file->ptr = (char *)""; file->size = 0; } else { file->ptr = read_sha1_file(sha1, &type, (unsigned long *)&file->size); } return 1; } /* * Receive diff-buffers from xdiff and concatenate them as * needed across multiple callbacks. * * This is basically a copy of xdiff-interface.c/xdiff_outf(), * ripped from git and modified to use globals instead of * a special callback-struct. */ char *diffbuf = NULL; int buflen = 0; int filediff_cb(void *priv, mmbuffer_t *mb, int nbuf) { int i; for (i = 0; i < nbuf; i++) { if (mb[i].ptr[mb[i].size-1] != '\n') { /* Incomplete line */ diffbuf = xrealloc(diffbuf, buflen + mb[i].size); memcpy(diffbuf + buflen, mb[i].ptr, mb[i].size); buflen += mb[i].size; continue; } /* we have a complete line */ if (!diffbuf) { ((linediff_fn)priv)(mb[i].ptr, mb[i].size); continue; } diffbuf = xrealloc(diffbuf, buflen + mb[i].size); memcpy(diffbuf + buflen, mb[i].ptr, mb[i].size); ((linediff_fn)priv)(diffbuf, buflen + mb[i].size); free(diffbuf); diffbuf = NULL; buflen = 0; } if (diffbuf) { ((linediff_fn)priv)(diffbuf, buflen); free(diffbuf); diffbuf = NULL; buflen = 0; } return 0; } int cgit_diff_files(const unsigned char *old_sha1, const unsigned char *new_sha1, unsigned long *old_size, unsigned long *new_size, int *binary, int context, int ignorews, linediff_fn fn) { mmfile_t file1, file2; xpparam_t diff_params; xdemitconf_t emit_params; xdemitcb_t emit_cb; if (!load_mmfile(&file1, old_sha1) || !load_mmfile(&file2, new_sha1)) return 1; *old_size = file1.size; *new_size = file2.size; if ((file1.ptr && buffer_is_binary(file1.ptr, file1.size)) || (file2.ptr && buffer_is_binary(file2.ptr, file2.size))) { *binary = 1; if (file1.size) free(file1.ptr); if (file2.size) free(file2.ptr); return 0; } memset(&diff_params, 0, sizeof(diff_params)); memset(&emit_params, 0, sizeof(emit_params)); memset(&emit_cb, 0, sizeof(emit_cb)); diff_params.flags = XDF_NEED_MINIMAL; if (ignorews) diff_params.flags |= XDF_IGNORE_WHITESPACE; emit_params.ctxlen = context > 0 ? context : 3; emit_params.flags = XDL_EMIT_FUNCNAMES; emit_cb.outf = filediff_cb; emit_cb.priv = fn; xdl_diff(&file1, &file2, &diff_params, &emit_params, &emit_cb); if (file1.size) free(file1.ptr); if (file2.size) free(file2.ptr); return 0; } void cgit_diff_tree(const unsigned char *old_sha1, const unsigned char *new_sha1, filepair_fn fn, const char *prefix, int ignorews) { struct diff_options opt; int prefixlen; diff_setup(&opt); opt.output_format = DIFF_FORMAT_CALLBACK; opt.detect_rename = 1; opt.rename_limit = ctx.cfg.renamelimit; DIFF_OPT_SET(&opt, RECURSIVE); if (ignorews) DIFF_XDL_SET(&opt, IGNORE_WHITESPACE); opt.format_callback = cgit_diff_tree_cb; opt.format_callback_data = fn; if (prefix) { opt.nr_paths = 1; opt.paths = &prefix; prefixlen = strlen(prefix); opt.pathlens = &prefixlen; } diff_setup_done(&opt); if (old_sha1 && !is_null_sha1(old_sha1)) diff_tree_sha1(old_sha1, new_sha1, "", &opt); else diff_root_tree_sha1(new_sha1, "", &opt); diffcore_std(&opt); diff_flush(&opt); } void cgit_diff_commit(struct commit *commit, filepair_fn fn, const char *prefix) { unsigned char *old_sha1 = NULL; if (commit->parents) old_sha1 = commit->parents->item->object.sha1; cgit_diff_tree(old_sha1, commit->object.sha1, fn, prefix, ctx.qry.ignorews); } int cgit_parse_snapshots_mask(const char *str) { const struct cgit_snapshot_format *f; static const char *delim = " \t,:/|;"; int tl, sl, rv = 0; /* favor legacy setting */ if(atoi(str)) return 1; for(;;) { str += strspn(str,delim); tl = strcspn(str,delim); if (!tl) break; for (f = cgit_snapshot_formats; f->suffix; f++) { sl = strlen(f->suffix); if((tl == sl && !strncmp(f->suffix, str, tl)) || (tl == sl-1 && !strncmp(f->suffix+1, str, tl-1))) { rv |= f->bit; break; } } str += tl; } return rv; } typedef struct { char * name; char * value; } cgit_env_var; void cgit_prepare_repo_env(struct cgit_repo * repo) { cgit_env_var env_vars[] = { { .name = "CGIT_REPO_URL", .value = repo->url }, { .name = "CGIT_REPO_NAME", .value = repo->name }, { .name = "CGIT_REPO_PATH", .value = repo->path }, { .name = "CGIT_REPO_OWNER", .value = repo->owner }, { .name = "CGIT_REPO_DEFBRANCH", .value = repo->defbranch }, { .name = "CGIT_REPO_SECTION", .value = repo->section }, { .name = "CGIT_REPO_CLONE_URL", .value = repo->clone_url } }; int env_var_count = ARRAY_SIZE(env_vars); cgit_env_var *p, *q; static char *warn = "cgit warning: failed to set env: %s=%s\n"; p = env_vars; q = p + env_var_count; for (; p < q; p++) if (setenv(p->name, p->value, 1)) fprintf(stderr, warn, p->name, p->value); } int cgit_open_filter(struct cgit_filter *filter) { filter->old_stdout = chk_positive(dup(STDOUT_FILENO), "Unable to duplicate STDOUT"); chk_zero(pipe(filter->pipe_fh), "Unable to create pipe to subprocess"); filter->pid = chk_non_negative(fork(), "Unable to create subprocess"); if (filter->pid == 0) { close(filter->pipe_fh[1]); chk_non_negative(dup2(filter->pipe_fh[0], STDIN_FILENO), "Unable to use pipe as STDIN"); execvp(filter->cmd, filter->argv); die("Unable to exec subprocess %s: %s (%d)", filter->cmd, strerror(errno), errno); } close(filter->pipe_fh[0]); chk_non_negative(dup2(filter->pipe_fh[1], STDOUT_FILENO), "Unable to use pipe as STDOUT"); close(filter->pipe_fh[1]); return 0; } int cgit_close_filter(struct cgit_filter *filter) { chk_non_negative(dup2(filter->old_stdout, STDOUT_FILENO), "Unable to restore STDOUT"); close(filter->old_stdout); if (filter->pid < 0) return 0; waitpid(filter->pid, &filter->exitstatus, 0); if (WIFEXITED(filter->exitstatus) && !WEXITSTATUS(filter->exitstatus)) return 0; die("Subprocess %s exited abnormally", filter->cmd); } /* Read the content of the specified file into a newly allocated buffer, * zeroterminate the buffer and return 0 on success, errno otherwise. */ int readfile(const char *path, char **buf, size_t *size) { int fd, e; struct stat st; fd = open(path, O_RDONLY); if (fd == -1) return errno; if (fstat(fd, &st)) { e = errno; close(fd); return e; } if (!S_ISREG(st.st_mode)) { close(fd); return EISDIR; } *buf = xmalloc(st.st_size + 1); *size = read_in_full(fd, *buf, st.st_size); e = errno; (*buf)[*size] = '\0'; close(fd); return (*size == st.st_size ? 0 : e); } int is_token_char(char c) { return isalnum(c) || c == '_'; } /* Replace name with getenv(name), return pointer to zero-terminating char */ char *expand_macro(char *name, int maxlength) { char *value; int len; len = 0; value = getenv(name); if (value) { len = strlen(value); if (len > maxlength) len = maxlength; strncpy(name, value, len); } return name + len; } #define EXPBUFSIZE (1024 * 8) /* Replace all tokens prefixed by '$' in the specified text with the * value of the named environment variable. * NB: the return value is a static buffer, i.e. it must be strdup'd * by the caller. */ char *expand_macros(const char *txt) { static char result[EXPBUFSIZE]; char *p, *start; int len; p = result; start = NULL; while (p < result + EXPBUFSIZE - 1 && txt && *txt) { *p = *txt; if (start) { if (!is_token_char(*txt)) { if (p - start > 0) { *p = '\0'; len = result + EXPBUFSIZE - start - 1; p = expand_macro(start, len) - 1; } start = NULL; txt--; } p++; txt++; continue; } if (*txt == '$') { start = p; txt++; continue; } p++; txt++; } *p = '\0'; if (start && p - start > 0) { len = result + EXPBUFSIZE - start - 1; p = expand_macro(start, len); *p = '\0'; } return result; }