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/* ui-plain.c: functions for output of plain blobs by path
 *
 * Copyright (C) 2008 Lars Hjemli
 *
 * Licensed under GNU General Public License v2
 *   (see COPYING for full license text)
 */

#include "cgit.h"
#include "html.h"
#include "ui-shared.h"

int match_baselen;
int match;

static void print_object(const unsigned char *sha1, const char *path)
{
	enum object_type type;
	char *buf, *ext;
	unsigned long size;
	struct string_list_item *mime;

	type = sha1_object_info(sha1, &size);
	if (type == OBJ_BAD) {
		html_status(404, "Not found", 0);
		return;
	}

	buf = read_sha1_file(sha1, &type, &size);
	if (!buf) {
		html_status(404, "Not found", 0);
		pre { line-height: 125%; }
td.linenos .normal { color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px; }
span.linenos { color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px; }
td.linenos .special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; }
span.linenos.special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; }
.highlight .hll { background-color: #ffffcc }
.highlight .c { color: #888888 } /* Comment */
.highlight .err { color: #a61717; background-color: #e3d2d2 } /* Error */
.highlight .k { color: #008800; font-weight: bold } /* Keyword */
.highlight .ch { color: #888888 } /* Comment.Hashbang */
.highlight .cm { color: #888888 } /* Comment.Multiline */
.highlight .cp { color: #cc0000; font-weight: bold } /* Comment.Preproc */
.highlight .cpf { color: #888888 } /* Comment.PreprocFile */
.highlight .c1 { color: #888888 } /* Comment.Single */
.highlight .cs { color: #cc0000; font-weight: bold; background-color: #fff0f0 } /* Comment.Special */
.highlight .gd { color: #000000; background-color: #ffdddd } /* Generic.Deleted */
.highlight .ge { font-style: italic } /* Generic.Emph */
.highlight .gr { color: #aa0000 } /* Generic.Error */
.highlight .gh { color: #333333 } /* Generic.Heading */
.highlight .gi { color: #000000; background-color: #ddffdd } /* Generic.Inserted */
.highlight .go { color: #888888 } /* Generic.Output */
.highlight .gp { color: #555555 } /* Generic.Prompt */
.highlight .gs { font-weight: bold } /* Generic.Strong */
.highlight .gu { color: #666666 } /* Generic.Subheading */
.highlight .gt { color: #aa0000 } /* Generic.Traceback */
.highlight .kc { color: #008800; font-weight: bold } /* Keyword.Constant */
.highlight .kd { color: #008800; font-weight: bold } /* Keyword.Declaration */
.highlight .kn { color: #008800; font-weight: bold } /* Keyword.Namespace */
.highlight .kp { color: #008800 } /* Keyword.Pseudo */
.highlight .kr { color: #008800; font-weight: bold } /* Keyword.Reserved */
.highlight .kt { color: #888888; font-weight: bold } /* Keyword.Type */
.highlight .m { color: #0000DD; font-weight: bold } /* Literal.Number */
.highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */
.highlight .na { color: #336699 } /* Name.Attribute */
.highlight .nb { color: #003388 } /* Name.Builtin */
.highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */
.highlight .no { color: #003366; font-weight: bold } /* Name.Constant */
.highlight .nd { color: #555555 } /* Name.Decorator */
.highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */
.highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */
.highlight .nl { color: #336699; font-style: italic } /* Name.Label */
.highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */
.highlight .py { color: #336699; font-weight: bold } /* Name.Property */
.highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */
.highlight .nv { color: #336699 } /* Name.Variable */
.highlight .ow { color: #008800 } /* Operator.Word */
.highlight .w { color: #bbbbbb } /* Text.Whitespace */
.highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */
.highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */
.highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */
.highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */
.highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */
.highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */
.highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */
.highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */
.highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */
.highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */
.highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */
.highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */
.highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */
.highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */
.highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */
.highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */
.highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */
.highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */
.highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */
.highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */
.highlight .vc { color: #336699 } /* Name.Variable.Class */
.highlight .vg { color: #dd7700 } /* Name.Variable.Global */
.highlight .vi { color: #3333bb } /* Name.Variable.Instance */
.highlight .vm { color: #336699 } /* Name.Variable.Magic */
.highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */
/* shared.c: global vars + some callback functions
 *
 * Copyright (C) 2006 Lars Hjemli
 *
 * Licensed under GNU General Public License v2
 *   (see COPYING for full license text)
 */

#include "cgit.h"

struct cgit_repolist cgit_repolist;
struct cgit_context ctx;
int cgit_cmd;

int chk_zero(int result, char *msg)
{
	if (result != 0)
		die("%s: %s", msg, strerror(errno));
	return result;
}

int chk_positive(int result, char *msg)
{
	if (result <= 0)
		die("%s: %s", msg, strerror(errno));
	return result;
}

int chk_non_negative(int result, char *msg)
{
    	if (result < 0)
	    	die("%s: %s",msg, strerror(errno));
	return result;
}

struct cgit_repo *cgit_add_repo(const char *url)
{
	struct cgit_repo *ret;

	if (++cgit_repolist.count > cgit_repolist.length) {
		if (cgit_repolist.length == 0)
			cgit_repolist.length = 8;
		else
			cgit_repolist.length *= 2;
		cgit_repolist.repos = xrealloc(cgit_repolist.repos,
					       cgit_repolist.length *
					       sizeof(struct cgit_repo));
	}

	ret = &cgit_repolist.repos[cgit_repolist.count-1];
	memset(ret, 0, sizeof(struct cgit_repo));
	ret->url = trim_end(url, '/');
	ret->name = ret->url;
	ret->path = NULL;
	ret->desc = "[no description]";
	ret->owner = NULL;
	ret->section = ctx.cfg.section;
	ret->defbranch = "master";
	ret->snapshots = ctx.cfg.snapshots;
	ret->enable_log_filecount = ctx.cfg.enable_log_filecount;
	ret->enable_log_linecount = ctx.cfg.enable_log_linecount;
	ret->max_stats = ctx.cfg.max_stats;
	ret->module_link = ctx.cfg.module_link;
	ret->readme = NULL;
	ret->mtime = -1;
	ret->about_filter = ctx.cfg.about_filter;
	ret->commit_filter = ctx.cfg.commit_filter;
	ret->source_filter = ctx.cfg.source_filter;
	return ret;
}

struct cgit_repo *cgit_get_repoinfo(const char *url)
{
	int i;
	struct cgit_repo *repo;

	for (i=0; i<cgit_repolist.count; i++) {
		repo = &cgit_repolist.repos[i];
		if (!strcmp(repo->url, url))
			return repo;
	}
	return NULL;
}

void *cgit_free_commitinfo(struct commitinfo *info)
{
	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;
	char *s, *t;

	if (str == NULL)
		return NULL;
	t = (char *)str;
	len = strlen(t);
	while(len > 0 && t
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2025-04-05 15:16:49 +0000
lass="w"> len--; if (len == 0) return NULL; c = t[len]; t[len] = '\0'; s = xstrdup(t); t[len] = c; return s; } 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, 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; emit_params.ctxlen = 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) { struct diff_options opt; int ret; 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); 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)) ret = diff_tree_sha1(old_sha1, new_sha1, "", &opt); else ret = diff_root_tree_sha1(new_sha1, "", &opt); diffcore_std(&opt); diff_flush(&opt); } void cgit_diff_commit(struct commit *commit, filepair_fn fn) { unsigned char *old_sha1 = NULL; if (commit->parents) old_sha1 = commit->parents->item->object.sha1; cgit_diff_tree(old_sha1, commit->object.sha1, fn, NULL); } 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; } 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); }