Cleanup handling of environment variables

Signed-off-by: Lars Hjemli <hjemli@gmail.com>
This commit is contained in:
Lars Hjemli 2009-08-10 08:21:09 +02:00
parent e6cd7121ed
commit 60a26272e0
3 changed files with 45 additions and 33 deletions

33
cgit.c
View File

@ -215,6 +215,11 @@ static void querystring_cb(const char *name, const char *value)
}
}
char *xstrdupn(const char *str)
{
return (str ? xstrdup(str) : NULL);
}
static void prepare_context(struct cgit_context *ctx)
{
memset(ctx, 0, sizeof(ctx));
@ -245,6 +250,15 @@ static void prepare_context(struct cgit_context *ctx)
ctx->cfg.summary_branches = 10;
ctx->cfg.summary_log = 10;
ctx->cfg.summary_tags = 10;
ctx->env.cgit_config = xstrdupn(getenv("CGIT_CONFIG"));
ctx->env.http_host = xstrdupn(getenv("HTTP_HOST"));
ctx->env.https = xstrdupn(getenv("HTTPS"));
ctx->env.path_info = xstrdupn(getenv("PATH_INFO"));
ctx->env.query_string = xstrdupn(getenv("QUERY_STRING"));
ctx->env.request_method = xstrdupn(getenv("REQUEST_METHOD"));
ctx->env.script_name = xstrdupn(getenv("SCRIPT_NAME"));
ctx->env.server_name = xstrdupn(getenv("SERVER_NAME"));
ctx->env.server_port = xstrdupn(getenv("SERVER_PORT"));
ctx->page.mimetype = "text/html";
ctx->page.charset = PAGE_ENCODING;
ctx->page.filename = NULL;
@ -253,6 +267,12 @@ static void prepare_context(struct cgit_context *ctx)
ctx->page.expires = ctx->page.modified;
ctx->page.etag = NULL;
memset(&ctx->cfg.mimetypes, 0, sizeof(struct string_list));
if (ctx->env.script_name)
ctx->cfg.script_name = ctx->env.script_name;
if (ctx->env.query_string)
ctx->qry.raw = ctx->env.query_string;
if (!ctx->env.cgit_config)
ctx->env.cgit_config = CGIT_CONFIG;
}
struct refmatch {
@ -477,8 +497,6 @@ static int calc_ttl()
int main(int argc, const char **argv)
{
const char *cgit_config_env = getenv("CGIT_CONFIG");
const char *method = getenv("REQUEST_METHOD");
const char *path;
char *qry;
int err, ttl;
@ -488,13 +506,8 @@ int main(int argc, const char **argv)
cgit_repolist.count = 0;
cgit_repolist.repos = NULL;
if (getenv("SCRIPT_NAME"))
ctx.cfg.script_name = xstrdup(getenv("SCRIPT_NAME"));
if (getenv("QUERY_STRING"))
ctx.qry.raw = xstrdup(getenv("QUERY_STRING"));
cgit_parse_args(argc, argv);
parse_configfile(cgit_config_env ? cgit_config_env : CGIT_CONFIG,
config_cb);
parse_configfile(ctx.env.cgit_config, config_cb);
ctx.repo = NULL;
http_parse_querystring(ctx.qry.raw, querystring_cb);
@ -509,7 +522,7 @@ int main(int argc, const char **argv)
* urls without the need for rewriterules in the webserver (as
* long as PATH_INFO is included in the cache lookup key).
*/
path = getenv("PATH_INFO");
path = ctx.env.path_info;
if (!ctx.qry.url && path) {
if (path[0] == '/')
path++;
@ -525,7 +538,7 @@ int main(int argc, const char **argv)
ttl = calc_ttl();
ctx.page.expires += ttl*60;
if (method && !strcmp(method, "HEAD"))
if (ctx.env.request_method && !strcmp(ctx.env.request_method, "HEAD"))
ctx.cfg.nocache = 1;
if (ctx.cfg.nocache)
ctx.cfg.cache_size = 0;

13
cgit.h
View File

@ -207,7 +207,20 @@ struct cgit_page {
char *statusmsg;
};
struct cgit_environment {
char *cgit_config;
char *http_host;
char *https;
char *path_info;
char *query_string;
char *request_method;
char *script_name;
char *server_name;
char *server_port;
};
struct cgit_context {
struct cgit_environment env;
struct cgit_query qry;
struct cgit_config cfg;
struct cgit_repo *repo;

View File

@ -36,10 +36,7 @@ void cgit_print_error(char *msg)
char *cgit_httpscheme()
{
char *https;
https = getenv("HTTPS");
if (https != NULL && strcmp(https, "on") == 0)
if (ctx.env.https && !strcmp(ctx.env.https, "on"))
return "https://";
else
return "http://";
@ -47,22 +44,13 @@ char *cgit_httpscheme()
char *cgit_hosturl()
{
char *host, *port;
host = getenv("HTTP_HOST");
if (host) {
host = xstrdup(host);
} else {
host = getenv("SERVER_NAME");
if (!host)
if (ctx.env.http_host)
return ctx.env.http_host;
if (!ctx.env.server_name)
return NULL;
port = getenv("SERVER_PORT");
if (port && atoi(port) != 80)
host = xstrdup(fmt("%s:%d", host, atoi(port)));
else
host = xstrdup(host);
}
return host;
if (!ctx.env.server_port || atoi(ctx.env.server_port) == 80)
return ctx.env.server_name;
return xstrdup(fmt("%s:%s", ctx.env.server_name, ctx.env.server_port));
}
char *cgit_rooturl()
@ -467,8 +455,6 @@ void cgit_print_age(time_t t, time_t max_relative, char *format)
void cgit_print_http_headers(struct cgit_context *ctx)
{
const char *method = getenv("REQUEST_METHOD");
if (ctx->cfg.embedded)
return;
@ -489,7 +475,7 @@ void cgit_print_http_headers(struct cgit_context *ctx)
if (ctx->page.etag)
htmlf("ETag: \"%s\"\n", ctx->page.etag);
html("\n");
if (method && !strcmp(method, "HEAD"))
if (ctx->env.request_method && !strcmp(ctx->env.request_method, "HEAD"))
exit(0);
}